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The following commit(s) were added to refs/heads/master by this push:
     new 811302d4eb3 Avoid to use postgreSQL for variable names (#28269)
811302d4eb3 is described below

commit 811302d4eb30e5ebbd8059c1a051ca3011d6152f
Author: Liang Zhang <[email protected]>
AuthorDate: Sun Aug 27 14:27:49 2023 +0800

    Avoid to use postgreSQL for variable names (#28269)
---
 .../broadcast/rule/BroadcastRule.java              |  6 +--
 .../NewYamlBroadcastRuleConfigurationSwapper.java  | 10 ++---
 .../query/CountBroadcastRuleExecutorTest.java      |  6 +--
 .../query/ShowBroadcastTableRuleExecutorTest.java  |  6 +--
 ...eateBroadcastTableRuleStatementUpdaterTest.java |  6 +--
 ...DropBroadcastTableRuleStatementUpdaterTest.java |  8 ++--
 .../AlterEncryptRuleStatementUpdaterTest.java      |  6 +--
 ...SplittingTransactionalDataSourceRouterTest.java |  8 ++--
 .../shadow/yaml/ShadowRuleConfigurationYamlIT.java | 22 +++++-----
 .../query/ShowShadowTableRulesExecutor.java        |  4 +-
 .../sharding/cache/ShardingCache.java              |  6 +--
 .../yaml/ShardingRuleConfigurationYamlIT.java      |  8 ++--
 ...ewYamlShardingRuleConfigurationSwapperTest.java | 10 ++---
 .../query/CountShardingRuleExecutorTest.java       |  8 ++--
 .../ddl/AlterViewStatementContextTest.java         |  8 ++--
 .../statement/ddl/PrepareStatementContextTest.java | 40 +++++++++---------
 .../shardingsphere/infra/hint/SQLHintUtils.java    | 47 ++++++++++------------
 .../resource/storage/StorageNodeProperties.java    |  4 +-
 .../resource/storage/StorageResourceCreator.java   |  6 +--
 .../refresher/util/TableRefreshUtils.java          |  6 +--
 .../yaml/YamlShardingSphereDataSourceFactory.java  | 36 ++++++++---------
 ...rdingSpherePipelineDataSourceConfiguration.java |  6 +--
 .../StandardPipelineDataSourceConfiguration.java   |  6 +--
 .../ddlgenerator/PostgreSQLIndexSQLGenerator.java  |  4 +-
 .../shardingsphere/logging/util/LoggingUtils.java  | 38 ++++++++---------
 .../YamlLoggingRuleConfigurationSwapperTest.java   | 12 +++---
 .../ddl/CreateIndexStatementHandlerTest.java       | 25 ++++++------
 .../handler/dml/CopyStatementHandlerTest.java      | 26 ++++++------
 .../backend/config/ProxyConfigurationLoader.java   | 38 ++++++++---------
 .../EncryptRuleConfigurationImportChecker.java     |  6 +--
 .../rql/storage/unit/ShowStorageUnitExecutor.java  | 14 +++----
 .../hbase/connector/HBaseConnectionFactory.java    |  8 ++--
 .../admin/OpenGaussAdminExecutorFactoryTest.java   |  8 ++--
 ...enGaussSystemCatalogAdminQueryExecutorTest.java | 32 +++++++--------
 .../opengauss/OpenGaussFrontendEngine.java         |  4 +-
 .../command/OpenGaussCommandExecuteEngine.java     |  6 +--
 .../opengauss/OpenGaussFrontendEngineTest.java     |  2 +-
 .../command/query/PostgreSQLCommand.java           |  4 +-
 .../PostgreSQLBatchedStatementsExecutorTest.java   |  4 +-
 .../atomic/storage/StorageContainerFactory.java    | 12 +++---
 .../container/atomic/storage/impl/H2Container.java |  6 +--
 .../test/util/PropertiesBuilder.java               |  6 +--
 42 files changed, 264 insertions(+), 264 deletions(-)

diff --git 
a/features/broadcast/core/src/main/java/org/apache/shardingsphere/broadcast/rule/BroadcastRule.java
 
b/features/broadcast/core/src/main/java/org/apache/shardingsphere/broadcast/rule/BroadcastRule.java
index 110ad460eef..58892c0ac29 100644
--- 
a/features/broadcast/core/src/main/java/org/apache/shardingsphere/broadcast/rule/BroadcastRule.java
+++ 
b/features/broadcast/core/src/main/java/org/apache/shardingsphere/broadcast/rule/BroadcastRule.java
@@ -53,11 +53,11 @@ public final class BroadcastRule implements DatabaseRule, 
DataNodeContainedRule,
     
     private final TableNamesMapper logicalTableMapper;
     
-    public BroadcastRule(final BroadcastRuleConfiguration configuration, final 
String databaseName, final Map<String, DataSource> dataSources) {
-        this.configuration = configuration;
+    public BroadcastRule(final BroadcastRuleConfiguration config, final String 
databaseName, final Map<String, DataSource> dataSources) {
+        configuration = config;
         this.databaseName = databaseName;
         dataSourceNames = getDataSourceNames(dataSources);
-        tables = createBroadcastTables(configuration.getTables());
+        tables = createBroadcastTables(config.getTables());
         logicalTableMapper = createTableMapper();
         tableDataNodes = createShardingTableDataNodes(dataSourceNames, tables);
     }
diff --git 
a/features/broadcast/core/src/main/java/org/apache/shardingsphere/broadcast/yaml/swapper/NewYamlBroadcastRuleConfigurationSwapper.java
 
b/features/broadcast/core/src/main/java/org/apache/shardingsphere/broadcast/yaml/swapper/NewYamlBroadcastRuleConfigurationSwapper.java
index ca5a5586b57..a16980009c2 100644
--- 
a/features/broadcast/core/src/main/java/org/apache/shardingsphere/broadcast/yaml/swapper/NewYamlBroadcastRuleConfigurationSwapper.java
+++ 
b/features/broadcast/core/src/main/java/org/apache/shardingsphere/broadcast/yaml/swapper/NewYamlBroadcastRuleConfigurationSwapper.java
@@ -45,9 +45,9 @@ public final class NewYamlBroadcastRuleConfigurationSwapper 
implements NewYamlRu
         if (data.getTables().isEmpty()) {
             return Collections.emptyList();
         }
-        YamlBroadcastRuleConfiguration yamlBroadcastRuleConfiguration = new 
YamlBroadcastRuleConfiguration();
-        yamlBroadcastRuleConfiguration.getTables().addAll(data.getTables());
-        return Collections.singleton(new 
YamlDataNode(BroadcastRuleNodePathProvider.TABLES, 
YamlEngine.marshal(yamlBroadcastRuleConfiguration)));
+        YamlBroadcastRuleConfiguration yamlBroadcastRuleConfig = new 
YamlBroadcastRuleConfiguration();
+        yamlBroadcastRuleConfig.getTables().addAll(data.getTables());
+        return Collections.singleton(new 
YamlDataNode(BroadcastRuleNodePathProvider.TABLES, 
YamlEngine.marshal(yamlBroadcastRuleConfig)));
     }
     
     @Override
@@ -55,8 +55,8 @@ public final class NewYamlBroadcastRuleConfigurationSwapper 
implements NewYamlRu
         List<YamlDataNode> validDataNodes = dataNodes.stream().filter(each -> 
broadcastRuleNodePath.getRoot().isValidatedPath(each.getKey())).collect(Collectors.toList());
         for (YamlDataNode each : validDataNodes) {
             if 
(broadcastRuleNodePath.getRoot().isValidatedPath(each.getKey())) {
-                YamlBroadcastRuleConfiguration yamlBroadcastRuleConfiguration 
= YamlEngine.unmarshal(each.getValue(), YamlBroadcastRuleConfiguration.class);
-                return Optional.of(new 
BroadcastRuleConfiguration(yamlBroadcastRuleConfiguration.getTables()));
+                YamlBroadcastRuleConfiguration yamlBroadcastRuleConfig = 
YamlEngine.unmarshal(each.getValue(), YamlBroadcastRuleConfiguration.class);
+                return Optional.of(new 
BroadcastRuleConfiguration(yamlBroadcastRuleConfig.getTables()));
             }
         }
         return Optional.empty();
diff --git 
a/features/broadcast/distsql/handler/src/test/java/org/apache/shardingsphere/broadcast/distsql/handler/query/CountBroadcastRuleExecutorTest.java
 
b/features/broadcast/distsql/handler/src/test/java/org/apache/shardingsphere/broadcast/distsql/handler/query/CountBroadcastRuleExecutorTest.java
index 089f24b740a..6bb51e9def4 100644
--- 
a/features/broadcast/distsql/handler/src/test/java/org/apache/shardingsphere/broadcast/distsql/handler/query/CountBroadcastRuleExecutorTest.java
+++ 
b/features/broadcast/distsql/handler/src/test/java/org/apache/shardingsphere/broadcast/distsql/handler/query/CountBroadcastRuleExecutorTest.java
@@ -68,9 +68,9 @@ class CountBroadcastRuleExecutorTest {
     
     private BroadcastRule mockBroadcastRule() {
         BroadcastRule result = mock(BroadcastRule.class);
-        BroadcastRuleConfiguration configuration = 
mock(BroadcastRuleConfiguration.class);
-        
when(configuration.getTables()).thenReturn(Collections.singleton("t_address"));
-        when(result.getConfiguration()).thenReturn(configuration);
+        BroadcastRuleConfiguration config = 
mock(BroadcastRuleConfiguration.class);
+        
when(config.getTables()).thenReturn(Collections.singleton("t_address"));
+        when(result.getConfiguration()).thenReturn(config);
         return result;
     }
 }
diff --git 
a/features/broadcast/distsql/handler/src/test/java/org/apache/shardingsphere/broadcast/distsql/handler/query/ShowBroadcastTableRuleExecutorTest.java
 
b/features/broadcast/distsql/handler/src/test/java/org/apache/shardingsphere/broadcast/distsql/handler/query/ShowBroadcastTableRuleExecutorTest.java
index 4a53c0d2f06..139e9ff1ca1 100644
--- 
a/features/broadcast/distsql/handler/src/test/java/org/apache/shardingsphere/broadcast/distsql/handler/query/ShowBroadcastTableRuleExecutorTest.java
+++ 
b/features/broadcast/distsql/handler/src/test/java/org/apache/shardingsphere/broadcast/distsql/handler/query/ShowBroadcastTableRuleExecutorTest.java
@@ -75,9 +75,9 @@ class ShowBroadcastTableRuleExecutorTest {
     
     private BroadcastRule mockBroadcastRule() {
         BroadcastRule result = mock(BroadcastRule.class);
-        BroadcastRuleConfiguration configuration = 
mock(BroadcastRuleConfiguration.class);
-        
when(configuration.getTables()).thenReturn(Collections.singleton("t_address"));
-        when(result.getConfiguration()).thenReturn(configuration);
+        BroadcastRuleConfiguration config = 
mock(BroadcastRuleConfiguration.class);
+        
when(config.getTables()).thenReturn(Collections.singleton("t_address"));
+        when(result.getConfiguration()).thenReturn(config);
         return result;
     }
 }
diff --git 
a/features/broadcast/distsql/handler/src/test/java/org/apache/shardingsphere/broadcast/distsql/handler/update/CreateBroadcastTableRuleStatementUpdaterTest.java
 
b/features/broadcast/distsql/handler/src/test/java/org/apache/shardingsphere/broadcast/distsql/handler/update/CreateBroadcastTableRuleStatementUpdaterTest.java
index 6bac1416f0a..cf8b6b322d1 100644
--- 
a/features/broadcast/distsql/handler/src/test/java/org/apache/shardingsphere/broadcast/distsql/handler/update/CreateBroadcastTableRuleStatementUpdaterTest.java
+++ 
b/features/broadcast/distsql/handler/src/test/java/org/apache/shardingsphere/broadcast/distsql/handler/update/CreateBroadcastTableRuleStatementUpdaterTest.java
@@ -38,10 +38,10 @@ class CreateBroadcastTableRuleStatementUpdaterTest {
     
     @Test
     void assertCheckSQLStatementWithDuplicateBroadcastRule() {
-        BroadcastRuleConfiguration currentConfiguration = 
mock(BroadcastRuleConfiguration.class);
-        
when(currentConfiguration.getTables()).thenReturn(Collections.singleton("t_address"));
+        BroadcastRuleConfiguration currentConfig = 
mock(BroadcastRuleConfiguration.class);
+        
when(currentConfig.getTables()).thenReturn(Collections.singleton("t_address"));
         CreateBroadcastTableRuleStatement statement = new 
CreateBroadcastTableRuleStatement(false, Collections.singleton("t_address"));
-        assertThrows(DuplicateRuleException.class, () -> 
updater.checkSQLStatement(mock(ShardingSphereDatabase.class), statement, 
currentConfiguration));
+        assertThrows(DuplicateRuleException.class, () -> 
updater.checkSQLStatement(mock(ShardingSphereDatabase.class), statement, 
currentConfig));
     }
     
     @Test
diff --git 
a/features/broadcast/distsql/handler/src/test/java/org/apache/shardingsphere/broadcast/distsql/handler/update/DropBroadcastTableRuleStatementUpdaterTest.java
 
b/features/broadcast/distsql/handler/src/test/java/org/apache/shardingsphere/broadcast/distsql/handler/update/DropBroadcastTableRuleStatementUpdaterTest.java
index fc228d289e1..474ebc62a31 100644
--- 
a/features/broadcast/distsql/handler/src/test/java/org/apache/shardingsphere/broadcast/distsql/handler/update/DropBroadcastTableRuleStatementUpdaterTest.java
+++ 
b/features/broadcast/distsql/handler/src/test/java/org/apache/shardingsphere/broadcast/distsql/handler/update/DropBroadcastTableRuleStatementUpdaterTest.java
@@ -59,10 +59,10 @@ class DropBroadcastTableRuleStatementUpdaterTest {
     
     @Test
     void assertUpdateCurrentRuleConfiguration() {
-        BroadcastRuleConfiguration configuration = new 
BroadcastRuleConfiguration(new LinkedList<>());
-        configuration.getTables().add("t_address");
+        BroadcastRuleConfiguration config = new BroadcastRuleConfiguration(new 
LinkedList<>());
+        config.getTables().add("t_address");
         DropBroadcastTableRuleStatement statement = new 
DropBroadcastTableRuleStatement(false, Collections.singleton("t_address"));
-        assertTrue(updater.updateCurrentRuleConfiguration(statement, 
configuration));
-        assertTrue(configuration.getTables().isEmpty());
+        assertTrue(updater.updateCurrentRuleConfiguration(statement, config));
+        assertTrue(config.getTables().isEmpty());
     }
 }
diff --git 
a/features/encrypt/distsql/handler/src/test/java/org/apache/shardingsphere/encrypt/distsql/handler/update/AlterEncryptRuleStatementUpdaterTest.java
 
b/features/encrypt/distsql/handler/src/test/java/org/apache/shardingsphere/encrypt/distsql/handler/update/AlterEncryptRuleStatementUpdaterTest.java
index e8db40f3cee..5ce67d58d59 100644
--- 
a/features/encrypt/distsql/handler/src/test/java/org/apache/shardingsphere/encrypt/distsql/handler/update/AlterEncryptRuleStatementUpdaterTest.java
+++ 
b/features/encrypt/distsql/handler/src/test/java/org/apache/shardingsphere/encrypt/distsql/handler/update/AlterEncryptRuleStatementUpdaterTest.java
@@ -78,9 +78,9 @@ class AlterEncryptRuleStatementUpdaterTest {
     
     @Test
     void assertUpdateCurrentRuleConfigurationWithInUsedEncryptor() {
-        EncryptRuleConfiguration currentRuleConfiguration = 
createCurrentRuleConfigurationWithMultipleTableRules();
-        updater.updateCurrentRuleConfiguration(currentRuleConfiguration, 
createToBeAlteredRuleConfiguration());
-        assertThat(currentRuleConfiguration.getEncryptors().size(), is(1));
+        EncryptRuleConfiguration currentRuleConfig = 
createCurrentRuleConfigurationWithMultipleTableRules();
+        updater.updateCurrentRuleConfiguration(currentRuleConfig, 
createToBeAlteredRuleConfiguration());
+        assertThat(currentRuleConfig.getEncryptors().size(), is(1));
     }
     
     private AlterEncryptRuleStatement createSQLStatement(final String 
encryptorName) {
diff --git 
a/features/readwrite-splitting/core/src/test/java/org/apache/shardingsphere/readwritesplitting/route/qualified/type/QualifiedReadwriteSplittingTransactionalDataSourceRouterTest.java
 
b/features/readwrite-splitting/core/src/test/java/org/apache/shardingsphere/readwritesplitting/route/qualified/type/QualifiedReadwriteSplittingTransactionalDataSourceRouterTest.java
index 76af7184b18..29d059ed68b 100644
--- 
a/features/readwrite-splitting/core/src/test/java/org/apache/shardingsphere/readwritesplitting/route/qualified/type/QualifiedReadwriteSplittingTransactionalDataSourceRouterTest.java
+++ 
b/features/readwrite-splitting/core/src/test/java/org/apache/shardingsphere/readwritesplitting/route/qualified/type/QualifiedReadwriteSplittingTransactionalDataSourceRouterTest.java
@@ -57,14 +57,14 @@ class 
QualifiedReadwriteSplittingTransactionalDataSourceRouterTest {
     
     @Test
     void assertRoute() {
-        ReadwriteSplittingDataSourceRuleConfiguration 
readwriteSplittingDataSourceRuleConfiguration =
+        ReadwriteSplittingDataSourceRuleConfiguration 
readwriteSplittingDataSourceRuleConfig =
                 new 
ReadwriteSplittingDataSourceRuleConfiguration("test_config", "write_ds", 
Arrays.asList("read_ds_0", "read_ds_1"), null);
         ReadwriteSplittingDataSourceRule rule;
-        rule = new 
ReadwriteSplittingDataSourceRule(readwriteSplittingDataSourceRuleConfiguration, 
TransactionalReadQueryStrategy.PRIMARY, null);
+        rule = new 
ReadwriteSplittingDataSourceRule(readwriteSplittingDataSourceRuleConfig, 
TransactionalReadQueryStrategy.PRIMARY, null);
         assertThat(new 
QualifiedReadwriteSplittingTransactionalDataSourceRouter(new 
ConnectionContext()).route(rule), is("write_ds"));
-        rule = new 
ReadwriteSplittingDataSourceRule(readwriteSplittingDataSourceRuleConfiguration, 
TransactionalReadQueryStrategy.FIXED, new 
RoundRobinReadQueryLoadBalanceAlgorithm());
+        rule = new 
ReadwriteSplittingDataSourceRule(readwriteSplittingDataSourceRuleConfig, 
TransactionalReadQueryStrategy.FIXED, new 
RoundRobinReadQueryLoadBalanceAlgorithm());
         assertThat(new 
QualifiedReadwriteSplittingTransactionalDataSourceRouter(new 
ConnectionContext()).route(rule), is("read_ds_0"));
-        rule = new 
ReadwriteSplittingDataSourceRule(readwriteSplittingDataSourceRuleConfiguration, 
TransactionalReadQueryStrategy.DYNAMIC, new 
RoundRobinReadQueryLoadBalanceAlgorithm());
+        rule = new 
ReadwriteSplittingDataSourceRule(readwriteSplittingDataSourceRuleConfig, 
TransactionalReadQueryStrategy.DYNAMIC, new 
RoundRobinReadQueryLoadBalanceAlgorithm());
         assertThat(new 
QualifiedReadwriteSplittingTransactionalDataSourceRouter(new 
ConnectionContext()).route(rule), is("read_ds_0"));
     }
 }
diff --git 
a/features/shadow/core/src/test/java/org/apache/shardingsphere/shadow/yaml/ShadowRuleConfigurationYamlIT.java
 
b/features/shadow/core/src/test/java/org/apache/shardingsphere/shadow/yaml/ShadowRuleConfigurationYamlIT.java
index 60006b52572..65f55a4591e 100644
--- 
a/features/shadow/core/src/test/java/org/apache/shardingsphere/shadow/yaml/ShadowRuleConfigurationYamlIT.java
+++ 
b/features/shadow/core/src/test/java/org/apache/shardingsphere/shadow/yaml/ShadowRuleConfigurationYamlIT.java
@@ -38,18 +38,18 @@ class ShadowRuleConfigurationYamlIT extends 
YamlRuleConfigurationIT {
     @Override
     protected void assertYamlRootConfiguration(final YamlRootConfiguration 
actual) {
         assertDataSourceMap(actual);
-        Optional<YamlShadowRuleConfiguration> shadowRuleConfiguration = 
actual.getRules().stream()
+        Optional<YamlShadowRuleConfiguration> shadowRuleConfig = 
actual.getRules().stream()
                 .filter(each -> each instanceof 
YamlShadowRuleConfiguration).findFirst().map(optional -> 
(YamlShadowRuleConfiguration) optional);
-        assertTrue(shadowRuleConfiguration.isPresent());
-        assertThat(shadowRuleConfiguration.get().getTables().size(), is(3));
-        assertTOrder(shadowRuleConfiguration.get());
-        assertTOrderItem(shadowRuleConfiguration.get());
-        assertTAddress(shadowRuleConfiguration.get());
-        assertThat(shadowRuleConfiguration.get().getShadowAlgorithms().size(), 
is(4));
-        assertUserIdInsertMatchAlgorithm(shadowRuleConfiguration.get());
-        assertUserIdUpdateMatchAlgorithm(shadowRuleConfiguration.get());
-        assertUserIdSelectMatchAlgorithm(shadowRuleConfiguration.get());
-        assertSqlHintAlgorithm(shadowRuleConfiguration.get());
+        assertTrue(shadowRuleConfig.isPresent());
+        assertThat(shadowRuleConfig.get().getTables().size(), is(3));
+        assertTOrder(shadowRuleConfig.get());
+        assertTOrderItem(shadowRuleConfig.get());
+        assertTAddress(shadowRuleConfig.get());
+        assertThat(shadowRuleConfig.get().getShadowAlgorithms().size(), is(4));
+        assertUserIdInsertMatchAlgorithm(shadowRuleConfig.get());
+        assertUserIdUpdateMatchAlgorithm(shadowRuleConfig.get());
+        assertUserIdSelectMatchAlgorithm(shadowRuleConfig.get());
+        assertSqlHintAlgorithm(shadowRuleConfig.get());
     }
     
     private void assertDataSourceMap(final YamlRootConfiguration actual) {
diff --git 
a/features/shadow/distsql/handler/src/main/java/org/apache/shardingsphere/shadow/distsql/handler/query/ShowShadowTableRulesExecutor.java
 
b/features/shadow/distsql/handler/src/main/java/org/apache/shardingsphere/shadow/distsql/handler/query/ShowShadowTableRulesExecutor.java
index 14981d56c2a..0afc6c3336a 100644
--- 
a/features/shadow/distsql/handler/src/main/java/org/apache/shardingsphere/shadow/distsql/handler/query/ShowShadowTableRulesExecutor.java
+++ 
b/features/shadow/distsql/handler/src/main/java/org/apache/shardingsphere/shadow/distsql/handler/query/ShowShadowTableRulesExecutor.java
@@ -59,9 +59,9 @@ public final class ShowShadowTableRulesExecutor implements 
RQLExecutor<ShowShado
         return result;
     }
     
-    private List<Map<String, String>> buildData(final ShadowRuleConfiguration 
shadowRuleConfiguration) {
+    private List<Map<String, String>> buildData(final ShadowRuleConfiguration 
shadowRuleConfig) {
         List<Map<String, String>> result = new ArrayList<>();
-        shadowRuleConfiguration.getTables().forEach((key, value) -> {
+        shadowRuleConfig.getTables().forEach((key, value) -> {
             Map<String, String> map = new HashMap<>();
             map.put(SHADOW_TABLE, key);
             map.put(SHADOW_ALGORITHM_NAME, 
convertToString(value.getShadowAlgorithmNames()));
diff --git 
a/features/sharding/core/src/main/java/org/apache/shardingsphere/sharding/cache/ShardingCache.java
 
b/features/sharding/core/src/main/java/org/apache/shardingsphere/sharding/cache/ShardingCache.java
index fed3039625b..030fbbd4eb0 100644
--- 
a/features/sharding/core/src/main/java/org/apache/shardingsphere/sharding/cache/ShardingCache.java
+++ 
b/features/sharding/core/src/main/java/org/apache/shardingsphere/sharding/cache/ShardingCache.java
@@ -41,11 +41,11 @@ public final class ShardingCache {
     
     private final ShardingRouteCache routeCache;
     
-    public ShardingCache(final ShardingCacheConfiguration configuration, final 
ShardingRule shardingRule) {
-        this.configuration = configuration;
+    public ShardingCache(final ShardingCacheConfiguration config, final 
ShardingRule shardingRule) {
+        configuration = config;
         this.shardingRule = shardingRule;
         timestampServiceRule = new TimestampServiceRule(new 
DefaultTimestampServiceConfigurationBuilder().build());
         routeCacheableChecker = new ShardingRouteCacheableChecker(this);
-        routeCache = new ShardingRouteCache(configuration.getRouteCache());
+        routeCache = new ShardingRouteCache(config.getRouteCache());
     }
 }
diff --git 
a/features/sharding/core/src/test/java/org/apache/shardingsphere/sharding/yaml/ShardingRuleConfigurationYamlIT.java
 
b/features/sharding/core/src/test/java/org/apache/shardingsphere/sharding/yaml/ShardingRuleConfigurationYamlIT.java
index a3c2bf8bfbb..d31fd2ab2ea 100644
--- 
a/features/sharding/core/src/test/java/org/apache/shardingsphere/sharding/yaml/ShardingRuleConfigurationYamlIT.java
+++ 
b/features/sharding/core/src/test/java/org/apache/shardingsphere/sharding/yaml/ShardingRuleConfigurationYamlIT.java
@@ -97,10 +97,10 @@ class ShardingRuleConfigurationYamlIT extends 
YamlRuleConfigurationIT {
     private void assertShardingCache(final YamlShardingRuleConfiguration 
actual) {
         YamlShardingCacheConfiguration actualShardingCache = 
actual.getShardingCache();
         assertThat(actualShardingCache.getAllowedMaxSqlLength(), is(512));
-        YamlShardingCacheOptionsConfiguration actualRouteCacheConfiguration = 
actualShardingCache.getRouteCache();
-        assertThat(actualRouteCacheConfiguration.getInitialCapacity(), 
is(65536));
-        assertThat(actualRouteCacheConfiguration.getMaximumSize(), is(262144));
-        assertTrue(actualRouteCacheConfiguration.isSoftValues());
+        YamlShardingCacheOptionsConfiguration actualRouteCacheConfig = 
actualShardingCache.getRouteCache();
+        assertThat(actualRouteCacheConfig.getInitialCapacity(), is(65536));
+        assertThat(actualRouteCacheConfig.getMaximumSize(), is(262144));
+        assertTrue(actualRouteCacheConfig.isSoftValues());
     }
     
     private void assertProps(final YamlRootConfiguration actual) {
diff --git 
a/features/sharding/core/src/test/java/org/apache/shardingsphere/sharding/yaml/swapper/NewYamlShardingRuleConfigurationSwapperTest.java
 
b/features/sharding/core/src/test/java/org/apache/shardingsphere/sharding/yaml/swapper/NewYamlShardingRuleConfigurationSwapperTest.java
index 144b201f933..bf1444a98c5 100644
--- 
a/features/sharding/core/src/test/java/org/apache/shardingsphere/sharding/yaml/swapper/NewYamlShardingRuleConfigurationSwapperTest.java
+++ 
b/features/sharding/core/src/test/java/org/apache/shardingsphere/sharding/yaml/swapper/NewYamlShardingRuleConfigurationSwapperTest.java
@@ -84,11 +84,11 @@ class NewYamlShardingRuleConfigurationSwapperTest {
         ShardingTableRuleConfiguration subTableRuleConfig = 
createTableRuleConfiguration("SUB_LOGIC_TABLE", "ds_${0..1}.sub_table_${0..2}");
         subTableRuleConfig.setKeyGenerateStrategy(new 
KeyGenerateStrategyConfiguration("id", "auto_increment"));
         result.getTables().add(subTableRuleConfig);
-        ShardingAutoTableRuleConfiguration autoTableRuleConfiguration = new 
ShardingAutoTableRuleConfiguration("auto_table", "ds_1,ds_2");
-        autoTableRuleConfiguration.setShardingStrategy(new 
StandardShardingStrategyConfiguration("user_id", "hash_mod"));
-        autoTableRuleConfiguration.setKeyGenerateStrategy(new 
KeyGenerateStrategyConfiguration("id", "auto_increment"));
-        autoTableRuleConfiguration.setAuditStrategy(new 
ShardingAuditStrategyConfiguration(Collections.singleton("audit_algorithm"), 
true));
-        result.getAutoTables().add(autoTableRuleConfiguration);
+        ShardingAutoTableRuleConfiguration autoTableRuleConfig = new 
ShardingAutoTableRuleConfiguration("auto_table", "ds_1,ds_2");
+        autoTableRuleConfig.setShardingStrategy(new 
StandardShardingStrategyConfiguration("user_id", "hash_mod"));
+        autoTableRuleConfig.setKeyGenerateStrategy(new 
KeyGenerateStrategyConfiguration("id", "auto_increment"));
+        autoTableRuleConfig.setAuditStrategy(new 
ShardingAuditStrategyConfiguration(Collections.singleton("audit_algorithm"), 
true));
+        result.getAutoTables().add(autoTableRuleConfig);
         result.getBindingTableGroups().add(new 
ShardingTableReferenceRuleConfiguration("foo", 
shardingTableRuleConfig.getLogicTable() + "," + 
subTableRuleConfig.getLogicTable()));
         result.setDefaultDatabaseShardingStrategy(new 
StandardShardingStrategyConfiguration("ds_id", "standard"));
         result.setDefaultTableShardingStrategy(new 
StandardShardingStrategyConfiguration("table_id", "standard"));
diff --git 
a/features/sharding/distsql/handler/src/test/java/org/apache/shardingsphere/sharding/distsql/query/CountShardingRuleExecutorTest.java
 
b/features/sharding/distsql/handler/src/test/java/org/apache/shardingsphere/sharding/distsql/query/CountShardingRuleExecutorTest.java
index a3f8648fcff..296478c5fcf 100644
--- 
a/features/sharding/distsql/handler/src/test/java/org/apache/shardingsphere/sharding/distsql/query/CountShardingRuleExecutorTest.java
+++ 
b/features/sharding/distsql/handler/src/test/java/org/apache/shardingsphere/sharding/distsql/query/CountShardingRuleExecutorTest.java
@@ -79,12 +79,12 @@ class CountShardingRuleExecutorTest {
         Map<String, TableRule> tableRules = new LinkedHashMap<>();
         tableRules.put("t_order_item", mock(TableRule.class));
         tableRules.put("t_order", mock(TableRule.class));
-        ShardingRuleConfiguration ruleConfiguration = new 
ShardingRuleConfiguration();
-        ShardingTableReferenceRuleConfiguration 
shardingTableReferenceRuleConfiguration = new 
ShardingTableReferenceRuleConfiguration("refRule", "ref");
-        
ruleConfiguration.getBindingTableGroups().add(shardingTableReferenceRuleConfiguration);
+        ShardingRuleConfiguration ruleConfig = new ShardingRuleConfiguration();
+        ShardingTableReferenceRuleConfiguration 
shardingTableReferenceRuleConfig = new 
ShardingTableReferenceRuleConfiguration("refRule", "ref");
+        
ruleConfig.getBindingTableGroups().add(shardingTableReferenceRuleConfig);
         ShardingRule result = mock(ShardingRule.class);
         when(result.getTableRules()).thenReturn(tableRules);
-        when(result.getConfiguration()).thenReturn(ruleConfiguration);
+        when(result.getConfiguration()).thenReturn(ruleConfig);
         return result;
     }
 }
diff --git 
a/infra/binder/src/test/java/org/apache/shardingsphere/infra/binder/context/statement/ddl/AlterViewStatementContextTest.java
 
b/infra/binder/src/test/java/org/apache/shardingsphere/infra/binder/context/statement/ddl/AlterViewStatementContextTest.java
index eab23029a68..64cd0c568e6 100644
--- 
a/infra/binder/src/test/java/org/apache/shardingsphere/infra/binder/context/statement/ddl/AlterViewStatementContextTest.java
+++ 
b/infra/binder/src/test/java/org/apache/shardingsphere/infra/binder/context/statement/ddl/AlterViewStatementContextTest.java
@@ -58,10 +58,10 @@ class AlterViewStatementContextTest {
     
     @Test
     void assertPostgreSQLNewInstance() {
-        PostgreSQLAlterViewStatement postgreSQLAlterViewStatement = 
mock(PostgreSQLAlterViewStatement.class);
-        when(postgreSQLAlterViewStatement.getView()).thenReturn(view);
-        
when(postgreSQLAlterViewStatement.getRenameView()).thenReturn(Optional.of(new 
SimpleTableSegment(new TableNameSegment(0, 0, new IdentifierValue("view")))));
-        assertNewInstance(postgreSQLAlterViewStatement);
+        PostgreSQLAlterViewStatement alterViewStatement = 
mock(PostgreSQLAlterViewStatement.class);
+        when(alterViewStatement.getView()).thenReturn(view);
+        when(alterViewStatement.getRenameView()).thenReturn(Optional.of(new 
SimpleTableSegment(new TableNameSegment(0, 0, new IdentifierValue("view")))));
+        assertNewInstance(alterViewStatement);
     }
     
     private void assertNewInstance(final AlterViewStatement 
alterViewStatement) {
diff --git 
a/infra/binder/src/test/java/org/apache/shardingsphere/infra/binder/context/statement/ddl/PrepareStatementContextTest.java
 
b/infra/binder/src/test/java/org/apache/shardingsphere/infra/binder/context/statement/ddl/PrepareStatementContextTest.java
index 8285b17be3e..1ea14db3efc 100644
--- 
a/infra/binder/src/test/java/org/apache/shardingsphere/infra/binder/context/statement/ddl/PrepareStatementContextTest.java
+++ 
b/infra/binder/src/test/java/org/apache/shardingsphere/infra/binder/context/statement/ddl/PrepareStatementContextTest.java
@@ -61,41 +61,41 @@ class PrepareStatementContextTest {
     
     @Test
     void assertNewInstance() {
-        PostgreSQLPrepareStatement postgreSQLPrepare = 
mock(PostgreSQLPrepareStatement.class);
-        
when(postgreSQLPrepare.getSelect()).thenReturn(Optional.of(getSelect()));
-        
when(postgreSQLPrepare.getInsert()).thenReturn(Optional.of(getInsert()));
-        
when(postgreSQLPrepare.getUpdate()).thenReturn(Optional.of(getUpdate()));
-        
when(postgreSQLPrepare.getDelete()).thenReturn(Optional.of(getDelete()));
-        PrepareStatementContext actual = new 
PrepareStatementContext(postgreSQLPrepare);
+        PostgreSQLPrepareStatement prepareStatement = 
mock(PostgreSQLPrepareStatement.class);
+        
when(prepareStatement.getSelect()).thenReturn(Optional.of(getSelect()));
+        
when(prepareStatement.getInsert()).thenReturn(Optional.of(getInsert()));
+        
when(prepareStatement.getUpdate()).thenReturn(Optional.of(getUpdate()));
+        
when(prepareStatement.getDelete()).thenReturn(Optional.of(getDelete()));
+        PrepareStatementContext actual = new 
PrepareStatementContext(prepareStatement);
         assertThat(actual, instanceOf(CommonSQLStatementContext.class));
-        assertThat(actual.getSqlStatement(), is(postgreSQLPrepare));
+        assertThat(actual.getSqlStatement(), is(prepareStatement));
         assertThat(actual.getAllTables().stream().map(each -> 
each.getTableName().getIdentifier().getValue()).collect(Collectors.toList()),
                 is(Arrays.asList("tbl_1", "tbl_1", "tbl_1", "tbl_1")));
     }
     
     private SelectStatement getSelect() {
-        SelectStatement select = new PostgreSQLSelectStatement();
-        select.setFrom(table);
-        return select;
+        SelectStatement result = new PostgreSQLSelectStatement();
+        result.setFrom(table);
+        return result;
     }
     
     private InsertStatement getInsert() {
-        InsertStatement insert = new PostgreSQLInsertStatement();
-        insert.setTable(table);
-        return insert;
+        InsertStatement result = new PostgreSQLInsertStatement();
+        result.setTable(table);
+        return result;
     }
     
     private UpdateStatement getUpdate() {
-        UpdateStatement update = new PostgreSQLUpdateStatement();
-        update.setTable(table);
+        UpdateStatement result = new PostgreSQLUpdateStatement();
+        result.setTable(table);
         SetAssignmentSegment setAssignmentSegment = new 
SetAssignmentSegment(0, 0, Collections.singletonList(new 
ColumnAssignmentSegment(0, 0, Collections.singletonList(column), column)));
-        update.setSetAssignment(setAssignmentSegment);
-        return update;
+        result.setSetAssignment(setAssignmentSegment);
+        return result;
     }
     
     private DeleteStatement getDelete() {
-        DeleteStatement delete = new PostgreSQLDeleteStatement();
-        delete.setTable(table);
-        return delete;
+        DeleteStatement result = new PostgreSQLDeleteStatement();
+        result.setTable(table);
+        return result;
     }
 }
diff --git 
a/infra/common/src/main/java/org/apache/shardingsphere/infra/hint/SQLHintUtils.java
 
b/infra/common/src/main/java/org/apache/shardingsphere/infra/hint/SQLHintUtils.java
index c241b47f9a0..452e967ef99 100644
--- 
a/infra/common/src/main/java/org/apache/shardingsphere/infra/hint/SQLHintUtils.java
+++ 
b/infra/common/src/main/java/org/apache/shardingsphere/infra/hint/SQLHintUtils.java
@@ -104,26 +104,26 @@ public final class SQLHintUtils {
         }
         HintValueContext result = new HintValueContext();
         String hintText = sql.substring(0, sql.indexOf(SQL_COMMENT_SUFFIX) + 
2);
-        Properties hintProperties = SQLHintUtils.getSQLHintProps(hintText);
-        if (containsPropertyKey(hintProperties, 
SQLHintPropertiesKey.DATASOURCE_NAME_KEY)) {
-            result.setDataSourceName(getProperty(hintProperties, 
SQLHintPropertiesKey.DATASOURCE_NAME_KEY));
+        Properties hintProps = SQLHintUtils.getSQLHintProps(hintText);
+        if (containsPropertyKey(hintProps, 
SQLHintPropertiesKey.DATASOURCE_NAME_KEY)) {
+            result.setDataSourceName(getProperty(hintProps, 
SQLHintPropertiesKey.DATASOURCE_NAME_KEY));
         }
-        if (containsPropertyKey(hintProperties, 
SQLHintPropertiesKey.WRITE_ROUTE_ONLY_KEY)) {
-            
result.setWriteRouteOnly(Boolean.parseBoolean(getProperty(hintProperties, 
SQLHintPropertiesKey.WRITE_ROUTE_ONLY_KEY)));
+        if (containsPropertyKey(hintProps, 
SQLHintPropertiesKey.WRITE_ROUTE_ONLY_KEY)) {
+            
result.setWriteRouteOnly(Boolean.parseBoolean(getProperty(hintProps, 
SQLHintPropertiesKey.WRITE_ROUTE_ONLY_KEY)));
         }
-        if (containsPropertyKey(hintProperties, 
SQLHintPropertiesKey.USE_TRAFFIC_KEY)) {
-            
result.setUseTraffic(Boolean.parseBoolean(getProperty(hintProperties, 
SQLHintPropertiesKey.USE_TRAFFIC_KEY)));
+        if (containsPropertyKey(hintProps, 
SQLHintPropertiesKey.USE_TRAFFIC_KEY)) {
+            result.setUseTraffic(Boolean.parseBoolean(getProperty(hintProps, 
SQLHintPropertiesKey.USE_TRAFFIC_KEY)));
         }
-        if (containsPropertyKey(hintProperties, 
SQLHintPropertiesKey.SKIP_SQL_REWRITE_KEY)) {
-            
result.setSkipSQLRewrite(Boolean.parseBoolean(getProperty(hintProperties, 
SQLHintPropertiesKey.SKIP_SQL_REWRITE_KEY)));
+        if (containsPropertyKey(hintProps, 
SQLHintPropertiesKey.SKIP_SQL_REWRITE_KEY)) {
+            
result.setSkipSQLRewrite(Boolean.parseBoolean(getProperty(hintProps, 
SQLHintPropertiesKey.SKIP_SQL_REWRITE_KEY)));
         }
-        if (containsPropertyKey(hintProperties, 
SQLHintPropertiesKey.DISABLE_AUDIT_NAMES_KEY)) {
-            result.setDisableAuditNames(getProperty(hintProperties, 
SQLHintPropertiesKey.DISABLE_AUDIT_NAMES_KEY));
+        if (containsPropertyKey(hintProps, 
SQLHintPropertiesKey.DISABLE_AUDIT_NAMES_KEY)) {
+            result.setDisableAuditNames(getProperty(hintProps, 
SQLHintPropertiesKey.DISABLE_AUDIT_NAMES_KEY));
         }
-        if (containsPropertyKey(hintProperties, 
SQLHintPropertiesKey.SHADOW_KEY)) {
-            result.setShadow(Boolean.parseBoolean(getProperty(hintProperties, 
SQLHintPropertiesKey.SHADOW_KEY)));
+        if (containsPropertyKey(hintProps, SQLHintPropertiesKey.SHADOW_KEY)) {
+            result.setShadow(Boolean.parseBoolean(getProperty(hintProps, 
SQLHintPropertiesKey.SHADOW_KEY)));
         }
-        for (Entry<Object, Object> entry : hintProperties.entrySet()) {
+        for (Entry<Object, Object> entry : hintProps.entrySet()) {
             Comparable<?> value = entry.getValue() instanceof Comparable ? 
(Comparable<?>) entry.getValue() : Objects.toString(entry.getValue());
             if (containsPropertyKey(Objects.toString(entry.getKey()), 
SQLHintPropertiesKey.SHARDING_DATABASE_VALUE_KEY)) {
                 
result.getShardingDatabaseValues().put(Objects.toString(entry.getKey()).toUpperCase(),
 value);
@@ -139,17 +139,17 @@ public final class SQLHintUtils {
         return null != sql && 
(sql.startsWith(SQLHintTokenEnum.SQL_START_HINT_TOKEN.getKey()) || 
sql.startsWith(SQLHintTokenEnum.SQL_START_HINT_TOKEN.getAlias()));
     }
     
-    private static boolean containsPropertyKey(final Properties 
hintProperties, final SQLHintPropertiesKey sqlHintPropertiesKey) {
-        return hintProperties.containsKey(sqlHintPropertiesKey.getKey()) || 
hintProperties.containsKey(sqlHintPropertiesKey.getAlias());
+    private static boolean containsPropertyKey(final Properties hintProps, 
final SQLHintPropertiesKey sqlHintPropsKey) {
+        return hintProps.containsKey(sqlHintPropsKey.getKey()) || 
hintProps.containsKey(sqlHintPropsKey.getAlias());
     }
     
-    private static boolean containsPropertyKey(final String hintPropertyKey, 
final SQLHintPropertiesKey sqlHintPropertiesKey) {
-        return hintPropertyKey.contains(sqlHintPropertiesKey.getKey()) || 
hintPropertyKey.contains(sqlHintPropertiesKey.getAlias());
+    private static boolean containsPropertyKey(final String hintPropKey, final 
SQLHintPropertiesKey sqlHintPropsKey) {
+        return hintPropKey.contains(sqlHintPropsKey.getKey()) || 
hintPropKey.contains(sqlHintPropsKey.getAlias());
     }
     
-    private static String getProperty(final Properties hintProperties, final 
SQLHintPropertiesKey sqlHintPropertiesKey) {
-        String result = 
hintProperties.getProperty(sqlHintPropertiesKey.getKey());
-        return null == result ? 
hintProperties.getProperty(sqlHintPropertiesKey.getAlias()) : result;
+    private static String getProperty(final Properties hintProps, final 
SQLHintPropertiesKey sqlHintPropsKey) {
+        String result = hintProps.getProperty(sqlHintPropsKey.getKey());
+        return null == result ? 
hintProps.getProperty(sqlHintPropsKey.getAlias()) : result;
     }
     
     /**
@@ -159,9 +159,6 @@ public final class SQLHintUtils {
      * @return SQL after remove hint
      */
     public static String removeHint(final String sql) {
-        if (startWithHint(sql)) {
-            return sql.substring(sql.indexOf(SQL_COMMENT_SUFFIX) + 2);
-        }
-        return sql;
+        return startWithHint(sql) ? 
sql.substring(sql.indexOf(SQL_COMMENT_SUFFIX) + 2) : sql;
     }
 }
diff --git 
a/infra/common/src/main/java/org/apache/shardingsphere/infra/metadata/database/resource/storage/StorageNodeProperties.java
 
b/infra/common/src/main/java/org/apache/shardingsphere/infra/metadata/database/resource/storage/StorageNodeProperties.java
index 6585d84a2fd..91e13d20914 100644
--- 
a/infra/common/src/main/java/org/apache/shardingsphere/infra/metadata/database/resource/storage/StorageNodeProperties.java
+++ 
b/infra/common/src/main/java/org/apache/shardingsphere/infra/metadata/database/resource/storage/StorageNodeProperties.java
@@ -38,8 +38,8 @@ public final class StorageNodeProperties {
     @Override
     public boolean equals(final Object obj) {
         if (obj instanceof StorageNodeProperties) {
-            StorageNodeProperties storageNodeProperties = 
(StorageNodeProperties) obj;
-            return storageNodeProperties.name.equals(name);
+            StorageNodeProperties storageNodeProps = (StorageNodeProperties) 
obj;
+            return storageNodeProps.name.equals(name);
         }
         return false;
     }
diff --git 
a/infra/common/src/main/java/org/apache/shardingsphere/infra/metadata/database/resource/storage/StorageResourceCreator.java
 
b/infra/common/src/main/java/org/apache/shardingsphere/infra/metadata/database/resource/storage/StorageResourceCreator.java
index d0f00f872c8..bf408ade7e8 100644
--- 
a/infra/common/src/main/java/org/apache/shardingsphere/infra/metadata/database/resource/storage/StorageResourceCreator.java
+++ 
b/infra/common/src/main/java/org/apache/shardingsphere/infra/metadata/database/resource/storage/StorageResourceCreator.java
@@ -98,9 +98,9 @@ public final class StorageResourceCreator {
     }
     
     private static StorageNodeProperties getStorageNodeProperties(final String 
dataSourceName, final DataSourcePoolProperties storageNodeProps) {
-        Map<String, Object> standardProperties = 
storageNodeProps.getConnectionPropertySynonyms().getStandardProperties();
-        String url = standardProperties.get("url").toString();
-        String username = standardProperties.get("username").toString();
+        Map<String, Object> standardProps = 
storageNodeProps.getConnectionPropertySynonyms().getStandardProperties();
+        String url = standardProps.get("url").toString();
+        String username = standardProps.get("username").toString();
         DatabaseType databaseType = DatabaseTypeFactory.get(url);
         return getStorageNodeProperties(dataSourceName, url, username, 
databaseType);
     }
diff --git 
a/infra/context/src/main/java/org/apache/shardingsphere/infra/connection/refresher/util/TableRefreshUtils.java
 
b/infra/context/src/main/java/org/apache/shardingsphere/infra/connection/refresher/util/TableRefreshUtils.java
index 50546190939..71e3170acd3 100644
--- 
a/infra/context/src/main/java/org/apache/shardingsphere/infra/connection/refresher/util/TableRefreshUtils.java
+++ 
b/infra/context/src/main/java/org/apache/shardingsphere/infra/connection/refresher/util/TableRefreshUtils.java
@@ -95,11 +95,11 @@ public final class TableRefreshUtils {
         if (!singleRule.isPresent()) {
             return false;
         }
-        RuleConfiguration ruleConfiguration = 
singleRule.get().getConfiguration();
-        if (!(ruleConfiguration instanceof SingleRuleConfiguration)) {
+        RuleConfiguration ruleConfig = singleRule.get().getConfiguration();
+        if (!(ruleConfig instanceof SingleRuleConfiguration)) {
             return false;
         }
-        Collection<String> tablesConfig = ((SingleRuleConfiguration) 
ruleConfiguration).getTables();
+        Collection<String> tablesConfig = ((SingleRuleConfiguration) 
ruleConfig).getTables();
         if (tablesConfig.contains(SingleTableConstants.ALL_TABLES) || 
tablesConfig.contains(SingleTableConstants.ALL_SCHEMA_TABLES)) {
             return false;
         }
diff --git 
a/jdbc/core/src/main/java/org/apache/shardingsphere/driver/api/yaml/YamlShardingSphereDataSourceFactory.java
 
b/jdbc/core/src/main/java/org/apache/shardingsphere/driver/api/yaml/YamlShardingSphereDataSourceFactory.java
index 6c74393d90d..a89aa183ddb 100644
--- 
a/jdbc/core/src/main/java/org/apache/shardingsphere/driver/api/yaml/YamlShardingSphereDataSourceFactory.java
+++ 
b/jdbc/core/src/main/java/org/apache/shardingsphere/driver/api/yaml/YamlShardingSphereDataSourceFactory.java
@@ -167,31 +167,31 @@ public final class YamlShardingSphereDataSourceFactory {
         return 
ShardingSphereDataSourceFactory.createDataSource(jdbcConfig.getDatabaseName(), 
modeConfig, dataSourceMap, ruleConfigs, jdbcConfig.getProps());
     }
     
-    private static void rebuildGlobalRuleConfiguration(final 
YamlJDBCConfiguration jdbcConfiguration) {
-        
jdbcConfiguration.getRules().removeIf(YamlGlobalRuleConfiguration.class::isInstance);
-        if (null != jdbcConfiguration.getAuthority()) {
-            jdbcConfiguration.getRules().add(jdbcConfiguration.getAuthority());
+    private static void rebuildGlobalRuleConfiguration(final 
YamlJDBCConfiguration jdbcConfig) {
+        
jdbcConfig.getRules().removeIf(YamlGlobalRuleConfiguration.class::isInstance);
+        if (null != jdbcConfig.getAuthority()) {
+            jdbcConfig.getRules().add(jdbcConfig.getAuthority());
         }
-        if (null != jdbcConfiguration.getTransaction()) {
-            
jdbcConfiguration.getRules().add(jdbcConfiguration.getTransaction());
+        if (null != jdbcConfig.getTransaction()) {
+            jdbcConfig.getRules().add(jdbcConfig.getTransaction());
         }
-        if (null != jdbcConfiguration.getGlobalClock()) {
-            
jdbcConfiguration.getRules().add(jdbcConfiguration.getGlobalClock());
+        if (null != jdbcConfig.getGlobalClock()) {
+            jdbcConfig.getRules().add(jdbcConfig.getGlobalClock());
         }
-        if (null != jdbcConfiguration.getSqlParser()) {
-            jdbcConfiguration.getRules().add(jdbcConfiguration.getSqlParser());
+        if (null != jdbcConfig.getSqlParser()) {
+            jdbcConfig.getRules().add(jdbcConfig.getSqlParser());
         }
-        if (null != jdbcConfiguration.getSqlTranslator()) {
-            
jdbcConfiguration.getRules().add(jdbcConfiguration.getSqlTranslator());
+        if (null != jdbcConfig.getSqlTranslator()) {
+            jdbcConfig.getRules().add(jdbcConfig.getSqlTranslator());
         }
-        if (null != jdbcConfiguration.getTraffic()) {
-            jdbcConfiguration.getRules().add(jdbcConfiguration.getTraffic());
+        if (null != jdbcConfig.getTraffic()) {
+            jdbcConfig.getRules().add(jdbcConfig.getTraffic());
         }
-        if (null != jdbcConfiguration.getLogging()) {
-            jdbcConfiguration.getRules().add(jdbcConfiguration.getLogging());
+        if (null != jdbcConfig.getLogging()) {
+            jdbcConfig.getRules().add(jdbcConfig.getLogging());
         }
-        if (null != jdbcConfiguration.getSqlFederation()) {
-            
jdbcConfiguration.getRules().add(jdbcConfiguration.getSqlFederation());
+        if (null != jdbcConfig.getSqlFederation()) {
+            jdbcConfig.getRules().add(jdbcConfig.getSqlFederation());
         }
     }
 }
diff --git 
a/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/datasource/config/impl/ShardingSpherePipelineDataSourceConfiguration.java
 
b/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/datasource/config/impl/ShardingSpherePipelineDataSourceConfiguration.java
index 71d94590fc1..8180e30b9c6 100644
--- 
a/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/datasource/config/impl/ShardingSpherePipelineDataSourceConfiguration.java
+++ 
b/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/datasource/config/impl/ShardingSpherePipelineDataSourceConfiguration.java
@@ -96,9 +96,9 @@ public final class 
ShardingSpherePipelineDataSourceConfiguration implements Pipe
         rootConfig.getDataSources().forEach((key, value) -> {
             String jdbcUrlKey = value.containsKey("url") ? "url" : "jdbcUrl";
             String jdbcUrl = value.get(jdbcUrlKey).toString();
-            Properties queryProperties = 
standardJdbcUrlParser.parseQueryProperties(jdbcUrl.contains("?") ? 
jdbcUrl.substring(jdbcUrl.indexOf("?") + 1) : "");
-            extension.get().extendQueryProperties(queryProperties);
-            value.replace(jdbcUrlKey, new 
JdbcUrlAppender().appendQueryProperties(jdbcUrl, queryProperties));
+            Properties queryProps = 
standardJdbcUrlParser.parseQueryProperties(jdbcUrl.contains("?") ? 
jdbcUrl.substring(jdbcUrl.indexOf("?") + 1) : "");
+            extension.get().extendQueryProperties(queryProps);
+            value.replace(jdbcUrlKey, new 
JdbcUrlAppender().appendQueryProperties(jdbcUrl, queryProps));
         });
     }
     
diff --git 
a/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/datasource/config/impl/StandardPipelineDataSourceConfiguration.java
 
b/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/datasource/config/impl/StandardPipelineDataSourceConfiguration.java
index b2c0910f961..90bd9d1f84c 100644
--- 
a/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/datasource/config/impl/StandardPipelineDataSourceConfiguration.java
+++ 
b/kernel/data-pipeline/api/src/main/java/org/apache/shardingsphere/data/pipeline/api/datasource/config/impl/StandardPipelineDataSourceConfiguration.java
@@ -104,9 +104,9 @@ public final class StandardPipelineDataSourceConfiguration 
implements PipelineDa
             return;
         }
         String jdbcUrl = jdbcConfig.getUrl();
-        Properties queryProperties = new 
StandardJdbcUrlParser().parseQueryProperties(jdbcUrl.contains("?") ? 
jdbcUrl.substring(jdbcUrl.indexOf("?") + 1) : "");
-        extension.get().extendQueryProperties(queryProperties);
-        String url = new JdbcUrlAppender().appendQueryProperties(jdbcUrl, 
queryProperties);
+        Properties queryProps = new 
StandardJdbcUrlParser().parseQueryProperties(jdbcUrl.contains("?") ? 
jdbcUrl.substring(jdbcUrl.indexOf("?") + 1) : "");
+        extension.get().extendQueryProperties(queryProps);
+        String url = new JdbcUrlAppender().appendQueryProperties(jdbcUrl, 
queryProps);
         jdbcConfig.setUrl(url);
         yamlConfig.put("url", url);
     }
diff --git 
a/kernel/data-pipeline/dialect/postgresql/src/main/java/org/apache/shardingsphere/data/pipeline/postgresql/ddlgenerator/PostgreSQLIndexSQLGenerator.java
 
b/kernel/data-pipeline/dialect/postgresql/src/main/java/org/apache/shardingsphere/data/pipeline/postgresql/ddlgenerator/PostgreSQLIndexSQLGenerator.java
index f9f1a44d19c..775e327961c 100644
--- 
a/kernel/data-pipeline/dialect/postgresql/src/main/java/org/apache/shardingsphere/data/pipeline/postgresql/ddlgenerator/PostgreSQLIndexSQLGenerator.java
+++ 
b/kernel/data-pipeline/dialect/postgresql/src/main/java/org/apache/shardingsphere/data/pipeline/postgresql/ddlgenerator/PostgreSQLIndexSQLGenerator.java
@@ -80,8 +80,8 @@ public final class PostgreSQLIndexSQLGenerator extends 
AbstractPostgreSQLDDLAdap
     }
     
     private Map<String, Object> getIndexData(final Map<String, Object> 
context, final Map<String, Object> indexNode) {
-        Collection<Map<String, Object>> indexProperties = 
fetchIndexProperties(context, indexNode);
-        Map<String, Object> result = indexProperties.iterator().next();
+        Collection<Map<String, Object>> indexProps = 
fetchIndexProperties(context, indexNode);
+        Map<String, Object> result = indexProps.iterator().next();
         result.put("schema", context.get("schema"));
         result.put("table", context.get("name"));
         return result;
diff --git 
a/kernel/logging/core/src/main/java/org/apache/shardingsphere/logging/util/LoggingUtils.java
 
b/kernel/logging/core/src/main/java/org/apache/shardingsphere/logging/util/LoggingUtils.java
index 3444b866671..206e713952a 100644
--- 
a/kernel/logging/core/src/main/java/org/apache/shardingsphere/logging/util/LoggingUtils.java
+++ 
b/kernel/logging/core/src/main/java/org/apache/shardingsphere/logging/util/LoggingUtils.java
@@ -48,11 +48,11 @@ public final class LoggingUtils {
     /**
      * Get ShardingSphere-SQL logger.
      *
-     * @param loggingRuleConfiguration logging global rule configuration
+     * @param loggingRuleConfig logging global rule configuration
      * @return ShardingSphere-SQL logger
      */
-    public static Optional<ShardingSphereLogger> getSQLLogger(final 
LoggingRuleConfiguration loggingRuleConfiguration) {
-        return loggingRuleConfiguration.getLoggers().stream()
+    public static Optional<ShardingSphereLogger> getSQLLogger(final 
LoggingRuleConfiguration loggingRuleConfig) {
+        return loggingRuleConfig.getLoggers().stream()
                 .filter(each -> 
LoggingConstants.SQL_LOG_TOPIC.equalsIgnoreCase(each.getLoggerName())).findFirst();
     }
     
@@ -60,32 +60,32 @@ public final class LoggingUtils {
      * Synchronize the log-related configuration in logging rule and props.
      * Use the configuration in the logging rule first.
      *
-     * @param loggingRuleConfiguration logging global rule configuration
+     * @param loggingRuleConfig logging global rule configuration
      * @param props configuration properties
      */
-    public static void syncLoggingConfig(final LoggingRuleConfiguration 
loggingRuleConfiguration, final ConfigurationProperties props) {
-        LoggingUtils.getSQLLogger(loggingRuleConfiguration).ifPresent(option 
-> {
-            Properties loggerProperties = option.getProps();
-            syncPropsToLoggingRule(loggerProperties, props);
-            syncLoggingRuleToProps(loggerProperties, props);
+    public static void syncLoggingConfig(final LoggingRuleConfiguration 
loggingRuleConfig, final ConfigurationProperties props) {
+        LoggingUtils.getSQLLogger(loggingRuleConfig).ifPresent(option -> {
+            Properties loggerProps = option.getProps();
+            syncPropsToLoggingRule(loggerProps, props);
+            syncLoggingRuleToProps(loggerProps, props);
         });
     }
     
-    private static void syncPropsToLoggingRule(final Properties 
loggerProperties, final ConfigurationProperties props) {
-        if (!loggerProperties.containsKey(LoggingConstants.SQL_LOG_ENABLE) && 
props.getProps().containsKey(LoggingConstants.SQL_SHOW)) {
-            loggerProperties.setProperty(LoggingConstants.SQL_LOG_ENABLE, 
props.getProps().get(LoggingConstants.SQL_SHOW).toString());
+    private static void syncPropsToLoggingRule(final Properties loggerProps, 
final ConfigurationProperties props) {
+        if (!loggerProps.containsKey(LoggingConstants.SQL_LOG_ENABLE) && 
props.getProps().containsKey(LoggingConstants.SQL_SHOW)) {
+            loggerProps.setProperty(LoggingConstants.SQL_LOG_ENABLE, 
props.getProps().get(LoggingConstants.SQL_SHOW).toString());
         }
-        if (!loggerProperties.containsKey(LoggingConstants.SQL_LOG_SIMPLE) && 
props.getProps().containsKey(LoggingConstants.SQL_SIMPLE)) {
-            loggerProperties.setProperty(LoggingConstants.SQL_LOG_SIMPLE, 
props.getProps().get(LoggingConstants.SQL_SIMPLE).toString());
+        if (!loggerProps.containsKey(LoggingConstants.SQL_LOG_SIMPLE) && 
props.getProps().containsKey(LoggingConstants.SQL_SIMPLE)) {
+            loggerProps.setProperty(LoggingConstants.SQL_LOG_SIMPLE, 
props.getProps().get(LoggingConstants.SQL_SIMPLE).toString());
         }
     }
     
-    private static void syncLoggingRuleToProps(final Properties 
loggerProperties, final ConfigurationProperties props) {
-        if (loggerProperties.containsKey(LoggingConstants.SQL_LOG_ENABLE)) {
-            props.getProps().setProperty(LoggingConstants.SQL_SHOW, 
loggerProperties.get(LoggingConstants.SQL_LOG_ENABLE).toString());
+    private static void syncLoggingRuleToProps(final Properties loggerProps, 
final ConfigurationProperties props) {
+        if (loggerProps.containsKey(LoggingConstants.SQL_LOG_ENABLE)) {
+            props.getProps().setProperty(LoggingConstants.SQL_SHOW, 
loggerProps.get(LoggingConstants.SQL_LOG_ENABLE).toString());
         }
-        if (loggerProperties.containsKey(LoggingConstants.SQL_LOG_SIMPLE)) {
-            props.getProps().setProperty(LoggingConstants.SQL_SIMPLE, 
loggerProperties.get(LoggingConstants.SQL_LOG_SIMPLE).toString());
+        if (loggerProps.containsKey(LoggingConstants.SQL_LOG_SIMPLE)) {
+            props.getProps().setProperty(LoggingConstants.SQL_SIMPLE, 
loggerProps.get(LoggingConstants.SQL_LOG_SIMPLE).toString());
         }
     }
 }
diff --git 
a/kernel/logging/core/src/test/java/org/apache/shardingsphere/logging/yaml/swapper/YamlLoggingRuleConfigurationSwapperTest.java
 
b/kernel/logging/core/src/test/java/org/apache/shardingsphere/logging/yaml/swapper/YamlLoggingRuleConfigurationSwapperTest.java
index f69cc5433c3..a15e73b75e8 100644
--- 
a/kernel/logging/core/src/test/java/org/apache/shardingsphere/logging/yaml/swapper/YamlLoggingRuleConfigurationSwapperTest.java
+++ 
b/kernel/logging/core/src/test/java/org/apache/shardingsphere/logging/yaml/swapper/YamlLoggingRuleConfigurationSwapperTest.java
@@ -38,9 +38,9 @@ class YamlLoggingRuleConfigurationSwapperTest {
     
     @Test
     void assertSwapToYamlConfiguration() {
-        YamlLoggingRuleConfiguration yamlLoggingRuleConfiguration = 
swapper.swapToYamlConfiguration(createLoggingRuleConfiguration());
-        assertThat(yamlLoggingRuleConfiguration.getLoggers().size(), is(1));
-        assertThat(yamlLoggingRuleConfiguration.getAppenders().size(), is(1));
+        YamlLoggingRuleConfiguration yamlLoggingRuleConfig = 
swapper.swapToYamlConfiguration(createLoggingRuleConfiguration());
+        assertThat(yamlLoggingRuleConfig.getLoggers().size(), is(1));
+        assertThat(yamlLoggingRuleConfig.getAppenders().size(), is(1));
     }
     
     private LoggingRuleConfiguration createLoggingRuleConfiguration() {
@@ -50,9 +50,9 @@ class YamlLoggingRuleConfigurationSwapperTest {
     
     @Test
     void assertSwapToObject() {
-        LoggingRuleConfiguration loggingRuleConfiguration = 
swapper.swapToObject(createYamlLoggingRuleConfiguration());
-        assertThat(loggingRuleConfiguration.getLoggers().size(), is(1));
-        assertThat(loggingRuleConfiguration.getAppenders().size(), is(1));
+        LoggingRuleConfiguration loggingRuleConfig = 
swapper.swapToObject(createYamlLoggingRuleConfiguration());
+        assertThat(loggingRuleConfig.getLoggers().size(), is(1));
+        assertThat(loggingRuleConfig.getAppenders().size(), is(1));
     }
     
     private YamlLoggingRuleConfiguration createYamlLoggingRuleConfiguration() {
diff --git 
a/parser/sql/statement/src/test/java/org/apache/shardingsphere/sql/parser/sql/dialect/handler/ddl/CreateIndexStatementHandlerTest.java
 
b/parser/sql/statement/src/test/java/org/apache/shardingsphere/sql/parser/sql/dialect/handler/ddl/CreateIndexStatementHandlerTest.java
index 6a32e8c6b92..e3deb18ca62 100644
--- 
a/parser/sql/statement/src/test/java/org/apache/shardingsphere/sql/parser/sql/dialect/handler/ddl/CreateIndexStatementHandlerTest.java
+++ 
b/parser/sql/statement/src/test/java/org/apache/shardingsphere/sql/parser/sql/dialect/handler/ddl/CreateIndexStatementHandlerTest.java
@@ -17,12 +17,6 @@
 
 package org.apache.shardingsphere.sql.parser.sql.dialect.handler.ddl;
 
-import static org.hamcrest.Matchers.is;
-import static org.junit.jupiter.api.Assertions.assertFalse;
-import static org.hamcrest.MatcherAssert.assertThat;
-import static org.junit.jupiter.api.Assertions.assertTrue;
-
-import java.util.Optional;
 import 
org.apache.shardingsphere.sql.parser.sql.dialect.statement.mysql.ddl.MySQLCreateIndexStatement;
 import 
org.apache.shardingsphere.sql.parser.sql.dialect.statement.opengauss.ddl.OpenGaussCreateIndexStatement;
 import 
org.apache.shardingsphere.sql.parser.sql.dialect.statement.oracle.ddl.OracleCreateIndexStatement;
@@ -30,6 +24,13 @@ import 
org.apache.shardingsphere.sql.parser.sql.dialect.statement.postgresql.ddl
 import 
org.apache.shardingsphere.sql.parser.sql.dialect.statement.sqlserver.ddl.SQLServerCreateIndexStatement;
 import org.junit.jupiter.api.Test;
 
+import java.util.Optional;
+
+import static org.hamcrest.MatcherAssert.assertThat;
+import static org.hamcrest.Matchers.is;
+import static org.junit.jupiter.api.Assertions.assertFalse;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
 class CreateIndexStatementHandlerTest {
     
     @Test
@@ -43,18 +44,18 @@ class CreateIndexStatementHandlerTest {
     
     @Test
     void assertGeneratedIndexStartIndexForPostgreSQL() {
-        PostgreSQLCreateIndexStatement postgreSQLCreateIndexStatement = new 
PostgreSQLCreateIndexStatement(true);
-        postgreSQLCreateIndexStatement.setGeneratedIndexStartIndex(2);
-        Optional<Integer> actual = 
CreateIndexStatementHandler.getGeneratedIndexStartIndex(postgreSQLCreateIndexStatement);
+        PostgreSQLCreateIndexStatement createIndexStatement = new 
PostgreSQLCreateIndexStatement(true);
+        createIndexStatement.setGeneratedIndexStartIndex(2);
+        Optional<Integer> actual = 
CreateIndexStatementHandler.getGeneratedIndexStartIndex(createIndexStatement);
         assertTrue(actual.isPresent());
         assertThat(actual.get(), is(2));
     }
     
     @Test
     void assertGeneratedIndexStartIndexForOpenGauss() {
-        OpenGaussCreateIndexStatement openGaussCreateIndexStatement = new 
OpenGaussCreateIndexStatement(true);
-        openGaussCreateIndexStatement.setGeneratedIndexStartIndex(2);
-        Optional<Integer> actual = 
CreateIndexStatementHandler.getGeneratedIndexStartIndex(openGaussCreateIndexStatement);
+        OpenGaussCreateIndexStatement createIndexStatement = new 
OpenGaussCreateIndexStatement(true);
+        createIndexStatement.setGeneratedIndexStartIndex(2);
+        Optional<Integer> actual = 
CreateIndexStatementHandler.getGeneratedIndexStartIndex(createIndexStatement);
         assertTrue(actual.isPresent());
         assertThat(actual.get(), is(2));
     }
diff --git 
a/parser/sql/statement/src/test/java/org/apache/shardingsphere/sql/parser/sql/dialect/handler/dml/CopyStatementHandlerTest.java
 
b/parser/sql/statement/src/test/java/org/apache/shardingsphere/sql/parser/sql/dialect/handler/dml/CopyStatementHandlerTest.java
index 0e1437770de..0679aae06c4 100644
--- 
a/parser/sql/statement/src/test/java/org/apache/shardingsphere/sql/parser/sql/dialect/handler/dml/CopyStatementHandlerTest.java
+++ 
b/parser/sql/statement/src/test/java/org/apache/shardingsphere/sql/parser/sql/dialect/handler/dml/CopyStatementHandlerTest.java
@@ -17,6 +17,7 @@
 
 package org.apache.shardingsphere.sql.parser.sql.dialect.handler.dml;
 
+import com.google.common.base.Preconditions;
 import 
org.apache.shardingsphere.sql.parser.sql.common.segment.dml.column.ColumnSegment;
 import 
org.apache.shardingsphere.sql.parser.sql.common.segment.dml.prepare.PrepareStatementQuerySegment;
 import 
org.apache.shardingsphere.sql.parser.sql.common.value.identifier.IdentifierValue;
@@ -36,33 +37,34 @@ class CopyStatementHandlerTest {
     
     @Test
     void assertGetPrepareStatementQuerySegmentWithSegmentForPostgreSQL() {
-        PostgreSQLCopyStatement postgreSQLCopyStatement = new 
PostgreSQLCopyStatement();
-        postgreSQLCopyStatement.setPrepareStatementQuerySegment(new 
PrepareStatementQuerySegment(0, 2));
-        Optional<PrepareStatementQuerySegment> actual = 
CopyStatementHandler.getPrepareStatementQuerySegment(postgreSQLCopyStatement);
+        PostgreSQLCopyStatement copyStatement = new PostgreSQLCopyStatement();
+        copyStatement.setPrepareStatementQuerySegment(new 
PrepareStatementQuerySegment(0, 2));
+        Optional<PrepareStatementQuerySegment> actual = 
CopyStatementHandler.getPrepareStatementQuerySegment(copyStatement);
         assertTrue(actual.isPresent());
-        assertThat(actual.get(), 
is(postgreSQLCopyStatement.getPrepareStatementQuerySegment().get()));
+        
Preconditions.checkState(copyStatement.getPrepareStatementQuerySegment().isPresent());
+        assertThat(actual.get(), 
is(copyStatement.getPrepareStatementQuerySegment().get()));
     }
     
     @Test
     void assertGetPrepareStatementQuerySegmentWithoutSegmentForPostgreSQL() {
-        PostgreSQLCopyStatement postgreSQLCopyStatement = new 
PostgreSQLCopyStatement();
-        Optional<PrepareStatementQuerySegment> actual = 
CopyStatementHandler.getPrepareStatementQuerySegment(postgreSQLCopyStatement);
+        PostgreSQLCopyStatement copyStatement = new PostgreSQLCopyStatement();
+        Optional<PrepareStatementQuerySegment> actual = 
CopyStatementHandler.getPrepareStatementQuerySegment(copyStatement);
         assertFalse(actual.isPresent());
     }
     
     @Test
     void assertGetColumnsWithSegmentForPostgreSQL() {
-        PostgreSQLCopyStatement postgreSQLCopyStatement = new 
PostgreSQLCopyStatement();
-        postgreSQLCopyStatement.getColumns().add(new ColumnSegment(0, 2, new 
IdentifierValue("identifier")));
-        Collection<ColumnSegment> actual = 
CopyStatementHandler.getColumns(postgreSQLCopyStatement);
+        PostgreSQLCopyStatement copyStatement = new PostgreSQLCopyStatement();
+        copyStatement.getColumns().add(new ColumnSegment(0, 2, new 
IdentifierValue("identifier")));
+        Collection<ColumnSegment> actual = 
CopyStatementHandler.getColumns(copyStatement);
         assertFalse(actual.isEmpty());
-        assertThat(actual, is(postgreSQLCopyStatement.getColumns()));
+        assertThat(actual, is(copyStatement.getColumns()));
     }
     
     @Test
     void assertGetColumnsWithoutSegmentForPostgreSQL() {
-        PostgreSQLCopyStatement postgreSQLCopyStatement = new 
PostgreSQLCopyStatement();
-        Collection<ColumnSegment> actual = 
CopyStatementHandler.getColumns(postgreSQLCopyStatement);
+        PostgreSQLCopyStatement copyStatement = new PostgreSQLCopyStatement();
+        Collection<ColumnSegment> actual = 
CopyStatementHandler.getColumns(copyStatement);
         assertTrue(actual.isEmpty());
     }
     
diff --git 
a/proxy/backend/core/src/main/java/org/apache/shardingsphere/proxy/backend/config/ProxyConfigurationLoader.java
 
b/proxy/backend/core/src/main/java/org/apache/shardingsphere/proxy/backend/config/ProxyConfigurationLoader.java
index 8af3fbe6843..8c587780928 100644
--- 
a/proxy/backend/core/src/main/java/org/apache/shardingsphere/proxy/backend/config/ProxyConfigurationLoader.java
+++ 
b/proxy/backend/core/src/main/java/org/apache/shardingsphere/proxy/backend/config/ProxyConfigurationLoader.java
@@ -82,33 +82,33 @@ public final class ProxyConfigurationLoader {
         return null == result ? new YamlProxyServerConfiguration() : 
rebuildGlobalRuleConfiguration(result);
     }
     
-    private static YamlProxyServerConfiguration 
rebuildGlobalRuleConfiguration(final YamlProxyServerConfiguration 
serverConfiguration) {
-        
serverConfiguration.getRules().removeIf(YamlGlobalRuleConfiguration.class::isInstance);
-        if (null != serverConfiguration.getAuthority()) {
-            
serverConfiguration.getRules().add(serverConfiguration.getAuthority());
+    private static YamlProxyServerConfiguration 
rebuildGlobalRuleConfiguration(final YamlProxyServerConfiguration serverConfig) 
{
+        
serverConfig.getRules().removeIf(YamlGlobalRuleConfiguration.class::isInstance);
+        if (null != serverConfig.getAuthority()) {
+            serverConfig.getRules().add(serverConfig.getAuthority());
         }
-        if (null != serverConfiguration.getTransaction()) {
-            
serverConfiguration.getRules().add(serverConfiguration.getTransaction());
+        if (null != serverConfig.getTransaction()) {
+            serverConfig.getRules().add(serverConfig.getTransaction());
         }
-        if (null != serverConfiguration.getGlobalClock()) {
-            
serverConfiguration.getRules().add(serverConfiguration.getGlobalClock());
+        if (null != serverConfig.getGlobalClock()) {
+            serverConfig.getRules().add(serverConfig.getGlobalClock());
         }
-        if (null != serverConfiguration.getSqlParser()) {
-            
serverConfiguration.getRules().add(serverConfiguration.getSqlParser());
+        if (null != serverConfig.getSqlParser()) {
+            serverConfig.getRules().add(serverConfig.getSqlParser());
         }
-        if (null != serverConfiguration.getSqlTranslator()) {
-            
serverConfiguration.getRules().add(serverConfiguration.getSqlTranslator());
+        if (null != serverConfig.getSqlTranslator()) {
+            serverConfig.getRules().add(serverConfig.getSqlTranslator());
         }
-        if (null != serverConfiguration.getTraffic()) {
-            
serverConfiguration.getRules().add(serverConfiguration.getTraffic());
+        if (null != serverConfig.getTraffic()) {
+            serverConfig.getRules().add(serverConfig.getTraffic());
         }
-        if (null != serverConfiguration.getLogging()) {
-            
serverConfiguration.getRules().add(serverConfiguration.getLogging());
+        if (null != serverConfig.getLogging()) {
+            serverConfig.getRules().add(serverConfig.getLogging());
         }
-        if (null != serverConfiguration.getSqlFederation()) {
-            
serverConfiguration.getRules().add(serverConfiguration.getSqlFederation());
+        if (null != serverConfig.getSqlFederation()) {
+            serverConfig.getRules().add(serverConfig.getSqlFederation());
         }
-        return serverConfiguration;
+        return serverConfig;
     }
     
     private static Collection<YamlProxyDatabaseConfiguration> 
loadDatabaseConfigurations(final File configPath) throws IOException {
diff --git 
a/proxy/backend/core/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/common/checker/EncryptRuleConfigurationImportChecker.java
 
b/proxy/backend/core/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/common/checker/EncryptRuleConfigurationImportChecker.java
index c71c13989bd..14276498b05 100644
--- 
a/proxy/backend/core/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/common/checker/EncryptRuleConfigurationImportChecker.java
+++ 
b/proxy/backend/core/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/ral/common/checker/EncryptRuleConfigurationImportChecker.java
@@ -65,15 +65,15 @@ public final class EncryptRuleConfigurationImportChecker {
         currentRuleConfig.getEncryptors().values().forEach(each -> 
TypedSPILoader.checkService(EncryptAlgorithm.class, each.getType(), 
each.getProps()));
     }
     
-    private void checkTableEncryptorsExisted(final EncryptRuleConfiguration 
configuration, final String databaseName) {
+    private void checkTableEncryptorsExisted(final EncryptRuleConfiguration 
config, final String databaseName) {
         Collection<EncryptColumnRuleConfiguration> columns = new 
LinkedList<>();
-        configuration.getTables().forEach(each -> 
columns.addAll(each.getColumns()));
+        config.getTables().forEach(each -> columns.addAll(each.getColumns()));
         Collection<String> notExistedEncryptors = 
columns.stream().map(optional -> 
optional.getCipher().getEncryptorName()).collect(Collectors.toList());
         notExistedEncryptors.addAll(
                 columns.stream().map(optional -> 
optional.getLikeQuery().map(EncryptColumnItemRuleConfiguration::getEncryptorName).orElse(null)).filter(Objects::nonNull).collect(Collectors.toList()));
         notExistedEncryptors.addAll(columns.stream().map(optional -> 
optional.getAssistedQuery().map(EncryptColumnItemRuleConfiguration::getEncryptorName).orElse(null)).filter(Objects::nonNull)
                 .collect(Collectors.toList()));
-        Collection<String> encryptors = configuration.getEncryptors().keySet();
+        Collection<String> encryptors = config.getEncryptors().keySet();
         notExistedEncryptors.removeIf(encryptors::contains);
         ShardingSpherePreconditions.checkState(notExistedEncryptors.isEmpty(), 
() -> new MissingRequiredAlgorithmException(databaseName, 
notExistedEncryptors));
     }
diff --git 
a/proxy/backend/core/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rql/storage/unit/ShowStorageUnitExecutor.java
 
b/proxy/backend/core/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rql/storage/unit/ShowStorageUnitExecutor.java
index 9a88ef900fa..ae85c48001e 100644
--- 
a/proxy/backend/core/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rql/storage/unit/ShowStorageUnitExecutor.java
+++ 
b/proxy/backend/core/src/main/java/org/apache/shardingsphere/proxy/backend/handler/distsql/rql/storage/unit/ShowStorageUnitExecutor.java
@@ -80,11 +80,11 @@ public final class ShowStorageUnitExecutor implements 
RQLExecutor<ShowStorageUni
         return result;
     }
     
-    private Map<String, Object> getCustomProps(final Map<String, Object> 
customProperties, final Properties queryProperties) {
-        Map<String, Object> result = new 
LinkedHashMap<>(customProperties.size() + 1, 1F);
-        result.putAll(customProperties);
-        if (!queryProperties.isEmpty()) {
-            result.put("queryProperties", queryProperties);
+    private Map<String, Object> getCustomProps(final Map<String, Object> 
customProps, final Properties queryProps) {
+        Map<String, Object> result = new LinkedHashMap<>(customProps.size() + 
1, 1F);
+        result.putAll(customProps);
+        if (!queryProps.isEmpty()) {
+            result.put("queryProperties", queryProps);
         }
         return result;
     }
@@ -117,8 +117,8 @@ public final class ShowStorageUnitExecutor implements 
RQLExecutor<ShowStorageUni
         DataSourcePoolProperties result = 
getDataSourcePoolProperties(dataSource);
         DialectDatabaseMetaData dialectDatabaseMetaData = new 
DatabaseTypeRegistry(databaseType).getDialectDatabaseMetaData();
         if (dialectDatabaseMetaData.isInstanceConnectionAvailable() && 
propsMap.containsKey(storageUnitName)) {
-            DataSourcePoolProperties unitDataSourcePoolProperties = 
propsMap.get(storageUnitName);
-            for (Entry<String, Object> entry : 
unitDataSourcePoolProperties.getPoolPropertySynonyms().getStandardProperties().entrySet())
 {
+            DataSourcePoolProperties unitDataSourcePoolProps = 
propsMap.get(storageUnitName);
+            for (Entry<String, Object> entry : 
unitDataSourcePoolProps.getPoolPropertySynonyms().getStandardProperties().entrySet())
 {
                 if (null != entry.getValue()) {
                     
result.getPoolPropertySynonyms().getStandardProperties().put(entry.getKey(), 
entry.getValue());
                 }
diff --git 
a/proxy/backend/type/hbase/src/main/java/org/apache/shardingsphere/proxy/backend/hbase/connector/HBaseConnectionFactory.java
 
b/proxy/backend/type/hbase/src/main/java/org/apache/shardingsphere/proxy/backend/hbase/connector/HBaseConnectionFactory.java
index 5060e3e217e..f747a844172 100644
--- 
a/proxy/backend/type/hbase/src/main/java/org/apache/shardingsphere/proxy/backend/hbase/connector/HBaseConnectionFactory.java
+++ 
b/proxy/backend/type/hbase/src/main/java/org/apache/shardingsphere/proxy/backend/hbase/connector/HBaseConnectionFactory.java
@@ -44,12 +44,12 @@ public final class HBaseConnectionFactory {
     /**
      * Create HBase connection.
      * 
-     * @param yamlProxyHBaseConfiguration HBase configuration
+     * @param yamlProxyHBaseConfig YAML HBase configuration
      * @return A connection for per HBase cluster
      */
-    public static Map<String, Connection> createHBaseConnections(final 
YamlHBaseConfiguration yamlProxyHBaseConfiguration) {
-        Map<String, Connection> result = new 
LinkedHashMap<>(yamlProxyHBaseConfiguration.getDataSources().size(), 1F);
-        for (Entry<String, YamlHBaseParameter> entry : 
yamlProxyHBaseConfiguration.getDataSources().entrySet()) {
+    public static Map<String, Connection> createHBaseConnections(final 
YamlHBaseConfiguration yamlProxyHBaseConfig) {
+        Map<String, Connection> result = new 
LinkedHashMap<>(yamlProxyHBaseConfig.getDataSources().size(), 1F);
+        for (Entry<String, YamlHBaseParameter> entry : 
yamlProxyHBaseConfig.getDataSources().entrySet()) {
             result.put(entry.getKey(), createConnection(entry.getValue()));
         }
         return result;
diff --git 
a/proxy/backend/type/opengauss/src/test/java/org/apache/shardingsphere/proxy/backend/opengauss/handler/admin/OpenGaussAdminExecutorFactoryTest.java
 
b/proxy/backend/type/opengauss/src/test/java/org/apache/shardingsphere/proxy/backend/opengauss/handler/admin/OpenGaussAdminExecutorFactoryTest.java
index d91be4b745d..c7e300d9e58 100644
--- 
a/proxy/backend/type/opengauss/src/test/java/org/apache/shardingsphere/proxy/backend/opengauss/handler/admin/OpenGaussAdminExecutorFactoryTest.java
+++ 
b/proxy/backend/type/opengauss/src/test/java/org/apache/shardingsphere/proxy/backend/opengauss/handler/admin/OpenGaussAdminExecutorFactoryTest.java
@@ -43,21 +43,21 @@ import static org.mockito.Mockito.when;
 class OpenGaussAdminExecutorFactoryTest {
     
     @Mock
-    private PostgreSQLAdminExecutorCreator postgreSQLAdminExecutorFactory;
+    private PostgreSQLAdminExecutorCreator postgresqlAdminExecutorFactory;
     
     private OpenGaussAdminExecutorCreator openGaussAdminExecutorFactory;
     
     @BeforeEach
     void setup() throws ReflectiveOperationException {
         openGaussAdminExecutorFactory = new OpenGaussAdminExecutorCreator();
-        
Plugins.getMemberAccessor().set(OpenGaussAdminExecutorCreator.class.getDeclaredField("delegated"),
 openGaussAdminExecutorFactory, postgreSQLAdminExecutorFactory);
+        
Plugins.getMemberAccessor().set(OpenGaussAdminExecutorCreator.class.getDeclaredField("delegated"),
 openGaussAdminExecutorFactory, postgresqlAdminExecutorFactory);
     }
     
     @Test
     void assertNewInstanceWithSQLStatementContextOnly() {
         SQLStatementContext sqlStatementContext = 
mock(SQLStatementContext.class);
         DatabaseAdminExecutor expected = mock(DatabaseAdminExecutor.class);
-        
when(postgreSQLAdminExecutorFactory.create(sqlStatementContext)).thenReturn(Optional.of(expected));
+        
when(postgresqlAdminExecutorFactory.create(sqlStatementContext)).thenReturn(Optional.of(expected));
         Optional<DatabaseAdminExecutor> actual = 
openGaussAdminExecutorFactory.create(sqlStatementContext);
         assertTrue(actual.isPresent());
         assertThat(actual.get(), is(expected));
@@ -80,7 +80,7 @@ class OpenGaussAdminExecutorFactoryTest {
         SQLStatementContext sqlStatementContext = 
mock(SQLStatementContext.class, RETURNS_DEEP_STUBS);
         
when(sqlStatementContext.getTablesContext().getTableNames()).thenReturn(Collections.emptyList());
         DatabaseAdminExecutor expected = mock(DatabaseAdminExecutor.class);
-        when(postgreSQLAdminExecutorFactory.create(sqlStatementContext, "", 
"", Collections.emptyList())).thenReturn(Optional.of(expected));
+        when(postgresqlAdminExecutorFactory.create(sqlStatementContext, "", 
"", Collections.emptyList())).thenReturn(Optional.of(expected));
         Optional<DatabaseAdminExecutor> actual = 
openGaussAdminExecutorFactory.create(sqlStatementContext, "", "", 
Collections.emptyList());
         assertTrue(actual.isPresent());
         assertThat(actual.get(), is(expected));
diff --git 
a/proxy/backend/type/opengauss/src/test/java/org/apache/shardingsphere/proxy/backend/opengauss/handler/admin/OpenGaussSystemCatalogAdminQueryExecutorTest.java
 
b/proxy/backend/type/opengauss/src/test/java/org/apache/shardingsphere/proxy/backend/opengauss/handler/admin/OpenGaussSystemCatalogAdminQueryExecutorTest.java
index 6f50069a04b..4a5749b1734 100644
--- 
a/proxy/backend/type/opengauss/src/test/java/org/apache/shardingsphere/proxy/backend/opengauss/handler/admin/OpenGaussSystemCatalogAdminQueryExecutorTest.java
+++ 
b/proxy/backend/type/opengauss/src/test/java/org/apache/shardingsphere/proxy/backend/opengauss/handler/admin/OpenGaussSystemCatalogAdminQueryExecutorTest.java
@@ -77,16 +77,16 @@ class OpenGaussSystemCatalogAdminQueryExecutorTest {
     void assertExecuteSelectFromPgDatabase() throws SQLException {
         when(ProxyContext.getInstance()).thenReturn(mock(ProxyContext.class, 
RETURNS_DEEP_STUBS));
         
when(ProxyContext.getInstance().getAllDatabaseNames()).thenReturn(Arrays.asList("foo",
 "bar", "sharding_db", "other_db"));
-        ConfigurationProperties properties = new ConfigurationProperties(new 
Properties());
-        
when(ProxyContext.getInstance().getContextManager().getMetaDataContexts().getMetaData().getProps()).thenReturn(properties);
+        ConfigurationProperties props = new ConfigurationProperties(new 
Properties());
+        
when(ProxyContext.getInstance().getContextManager().getMetaDataContexts().getMetaData().getProps()).thenReturn(props);
         ConnectionSession connectionSession = mock(ConnectionSession.class);
         
when(connectionSession.getProtocolType()).thenReturn(TypedSPILoader.getService(DatabaseType.class,
 "openGauss"));
         Map<String, ShardingSphereDatabase> databases = 
createShardingSphereDatabaseMap();
-        SQLFederationRule sqlFederationRule = new SQLFederationRule(new 
SQLFederationRuleConfiguration(false, new CacheOption(1, 1)), databases, 
properties);
+        SQLFederationRule sqlFederationRule = new SQLFederationRule(new 
SQLFederationRuleConfiguration(false, new CacheOption(1, 1)), databases, props);
         
when(ProxyContext.getInstance().getContextManager().getMetaDataContexts().getMetaData().getGlobalRuleMetaData()).thenReturn(mock(RuleMetaData.class));
         OpenGaussSelectStatement sqlStatement = 
createSelectStatementForPgDatabase();
         ShardingSphereMetaData metaData =
-                new ShardingSphereMetaData(databases, 
mock(ResourceMetaData.class, RETURNS_DEEP_STUBS), new 
RuleMetaData(Collections.singletonList(sqlFederationRule)), properties);
+                new ShardingSphereMetaData(databases, 
mock(ResourceMetaData.class, RETURNS_DEEP_STUBS), new 
RuleMetaData(Collections.singletonList(sqlFederationRule)), props);
         
when(ProxyContext.getInstance().getContextManager().getMetaDataContexts().getMetaData()).thenReturn(metaData);
         SelectStatementContext sqlStatementContext = new 
SelectStatementContext(metaData, Collections.emptyList(), sqlStatement, 
"sharding_db");
         OpenGaussSystemCatalogAdminQueryExecutor executor = new 
OpenGaussSystemCatalogAdminQueryExecutor(sqlStatementContext,
@@ -143,13 +143,13 @@ class OpenGaussSystemCatalogAdminQueryExecutorTest {
         when(ProxyContext.getInstance()).thenReturn(mock(ProxyContext.class, 
RETURNS_DEEP_STUBS));
         RuleMetaData ruleMetaData = mock(RuleMetaData.class);
         
when(ProxyContext.getInstance().getContextManager().getMetaDataContexts().getMetaData().getGlobalRuleMetaData()).thenReturn(ruleMetaData);
-        ConfigurationProperties properties = new ConfigurationProperties(new 
Properties());
-        
when(ProxyContext.getInstance().getContextManager().getMetaDataContexts().getMetaData().getProps()).thenReturn(properties);
+        ConfigurationProperties props = new ConfigurationProperties(new 
Properties());
+        
when(ProxyContext.getInstance().getContextManager().getMetaDataContexts().getMetaData().getProps()).thenReturn(props);
         Map<String, ShardingSphereDatabase> databases = 
createShardingSphereDatabaseMap();
-        SQLFederationRule sqlFederationRule = new SQLFederationRule(new 
SQLFederationRuleConfiguration(false, new CacheOption(1, 1)), databases, 
properties);
+        SQLFederationRule sqlFederationRule = new SQLFederationRule(new 
SQLFederationRuleConfiguration(false, new CacheOption(1, 1)), databases, props);
         OpenGaussSelectStatement sqlStatement = 
createSelectStatementForVersion();
         ShardingSphereMetaData metaData =
-                new ShardingSphereMetaData(databases, 
mock(ResourceMetaData.class, RETURNS_DEEP_STUBS), new 
RuleMetaData(Collections.singletonList(sqlFederationRule)), properties);
+                new ShardingSphereMetaData(databases, 
mock(ResourceMetaData.class, RETURNS_DEEP_STUBS), new 
RuleMetaData(Collections.singletonList(sqlFederationRule)), props);
         
when(ProxyContext.getInstance().getContextManager().getMetaDataContexts().getMetaData()).thenReturn(metaData);
         SelectStatementContext sqlStatementContext = new 
SelectStatementContext(metaData, Collections.emptyList(), sqlStatement, 
"sharding_db");
         OpenGaussSystemCatalogAdminQueryExecutor executor =
@@ -177,13 +177,13 @@ class OpenGaussSystemCatalogAdminQueryExecutorTest {
         when(ProxyContext.getInstance()).thenReturn(mock(ProxyContext.class, 
RETURNS_DEEP_STUBS));
         RuleMetaData ruleMetaData = mock(RuleMetaData.class);
         
when(ProxyContext.getInstance().getContextManager().getMetaDataContexts().getMetaData().getGlobalRuleMetaData()).thenReturn(ruleMetaData);
-        ConfigurationProperties properties = new ConfigurationProperties(new 
Properties());
-        
when(ProxyContext.getInstance().getContextManager().getMetaDataContexts().getMetaData().getProps()).thenReturn(properties);
+        ConfigurationProperties props = new ConfigurationProperties(new 
Properties());
+        
when(ProxyContext.getInstance().getContextManager().getMetaDataContexts().getMetaData().getProps()).thenReturn(props);
         Map<String, ShardingSphereDatabase> databases = 
createShardingSphereDatabaseMap();
-        SQLFederationRule sqlFederationRule = new SQLFederationRule(new 
SQLFederationRuleConfiguration(false, new CacheOption(1, 1)), databases, 
properties);
+        SQLFederationRule sqlFederationRule = new SQLFederationRule(new 
SQLFederationRuleConfiguration(false, new CacheOption(1, 1)), databases, props);
         OpenGaussSelectStatement sqlStatement = 
createSelectStatementForGsPasswordDeadlineAndIntervalToNum();
         ShardingSphereMetaData metaData =
-                new ShardingSphereMetaData(databases, 
mock(ResourceMetaData.class, RETURNS_DEEP_STUBS), new 
RuleMetaData(Collections.singletonList(sqlFederationRule)), properties);
+                new ShardingSphereMetaData(databases, 
mock(ResourceMetaData.class, RETURNS_DEEP_STUBS), new 
RuleMetaData(Collections.singletonList(sqlFederationRule)), props);
         
when(ProxyContext.getInstance().getContextManager().getMetaDataContexts().getMetaData()).thenReturn(metaData);
         SelectStatementContext sqlStatementContext = new 
SelectStatementContext(metaData, Collections.emptyList(), sqlStatement, 
"sharding_db");
         OpenGaussSystemCatalogAdminQueryExecutor executor =
@@ -213,13 +213,13 @@ class OpenGaussSystemCatalogAdminQueryExecutorTest {
         when(ProxyContext.getInstance()).thenReturn(mock(ProxyContext.class, 
RETURNS_DEEP_STUBS));
         RuleMetaData ruleMetaData = mock(RuleMetaData.class);
         
when(ProxyContext.getInstance().getContextManager().getMetaDataContexts().getMetaData().getGlobalRuleMetaData()).thenReturn(ruleMetaData);
-        ConfigurationProperties properties = new ConfigurationProperties(new 
Properties());
-        
when(ProxyContext.getInstance().getContextManager().getMetaDataContexts().getMetaData().getProps()).thenReturn(properties);
+        ConfigurationProperties props = new ConfigurationProperties(new 
Properties());
+        
when(ProxyContext.getInstance().getContextManager().getMetaDataContexts().getMetaData().getProps()).thenReturn(props);
         Map<String, ShardingSphereDatabase> databases = 
createShardingSphereDatabaseMap();
-        SQLFederationRule sqlFederationRule = new SQLFederationRule(new 
SQLFederationRuleConfiguration(false, new CacheOption(1, 1)), databases, 
properties);
+        SQLFederationRule sqlFederationRule = new SQLFederationRule(new 
SQLFederationRuleConfiguration(false, new CacheOption(1, 1)), databases, props);
         OpenGaussSelectStatement sqlStatement = 
createSelectStatementForGsPasswordNotifyTime();
         ShardingSphereMetaData metaData =
-                new ShardingSphereMetaData(databases, 
mock(ResourceMetaData.class, RETURNS_DEEP_STUBS), new 
RuleMetaData(Collections.singletonList(sqlFederationRule)), properties);
+                new ShardingSphereMetaData(databases, 
mock(ResourceMetaData.class, RETURNS_DEEP_STUBS), new 
RuleMetaData(Collections.singletonList(sqlFederationRule)), props);
         
when(ProxyContext.getInstance().getContextManager().getMetaDataContexts().getMetaData()).thenReturn(metaData);
         SelectStatementContext sqlStatementContext = new 
SelectStatementContext(metaData, Collections.emptyList(), sqlStatement, 
"sharding_db");
         OpenGaussSystemCatalogAdminQueryExecutor executor =
diff --git 
a/proxy/frontend/type/opengauss/src/main/java/org/apache/shardingsphere/proxy/frontend/opengauss/OpenGaussFrontendEngine.java
 
b/proxy/frontend/type/opengauss/src/main/java/org/apache/shardingsphere/proxy/frontend/opengauss/OpenGaussFrontendEngine.java
index e95d339d428..cfe4e6067b0 100644
--- 
a/proxy/frontend/type/opengauss/src/main/java/org/apache/shardingsphere/proxy/frontend/opengauss/OpenGaussFrontendEngine.java
+++ 
b/proxy/frontend/type/opengauss/src/main/java/org/apache/shardingsphere/proxy/frontend/opengauss/OpenGaussFrontendEngine.java
@@ -34,7 +34,7 @@ import 
org.apache.shardingsphere.proxy.frontend.spi.DatabaseProtocolFrontendEngi
 public final class OpenGaussFrontendEngine implements 
DatabaseProtocolFrontendEngine {
     
     @Getter(AccessLevel.NONE)
-    private final PostgreSQLFrontendEngine postgreSQLFrontendEngine = new 
PostgreSQLFrontendEngine();
+    private final PostgreSQLFrontendEngine postgresqlFrontendEngine = new 
PostgreSQLFrontendEngine();
     
     private final OpenGaussAuthenticationEngine authenticationEngine = new 
OpenGaussAuthenticationEngine();
     
@@ -44,7 +44,7 @@ public final class OpenGaussFrontendEngine implements 
DatabaseProtocolFrontendEn
     
     @Override
     public void release(final ConnectionSession connectionSession) {
-        postgreSQLFrontendEngine.release(connectionSession);
+        postgresqlFrontendEngine.release(connectionSession);
     }
     
     @Override
diff --git 
a/proxy/frontend/type/opengauss/src/main/java/org/apache/shardingsphere/proxy/frontend/opengauss/command/OpenGaussCommandExecuteEngine.java
 
b/proxy/frontend/type/opengauss/src/main/java/org/apache/shardingsphere/proxy/frontend/opengauss/command/OpenGaussCommandExecuteEngine.java
index 8191043b464..5f4b84e0303 100644
--- 
a/proxy/frontend/type/opengauss/src/main/java/org/apache/shardingsphere/proxy/frontend/opengauss/command/OpenGaussCommandExecuteEngine.java
+++ 
b/proxy/frontend/type/opengauss/src/main/java/org/apache/shardingsphere/proxy/frontend/opengauss/command/OpenGaussCommandExecuteEngine.java
@@ -48,7 +48,7 @@ import java.util.Optional;
  */
 public final class OpenGaussCommandExecuteEngine implements 
CommandExecuteEngine {
     
-    private final PostgreSQLCommandExecuteEngine 
postgreSQLCommandExecuteEngine = new PostgreSQLCommandExecuteEngine();
+    private final PostgreSQLCommandExecuteEngine 
postgresqlCommandExecuteEngine = new PostgreSQLCommandExecuteEngine();
     
     @Override
     public CommandPacketType getCommandPacketType(final PacketPayload payload) 
{
@@ -75,12 +75,12 @@ public final class OpenGaussCommandExecuteEngine implements 
CommandExecuteEngine
     
     @Override
     public Optional<DatabasePacket> getOtherPacket(final ConnectionSession 
connectionSession) {
-        return 
postgreSQLCommandExecuteEngine.getOtherPacket(connectionSession);
+        return 
postgresqlCommandExecuteEngine.getOtherPacket(connectionSession);
     }
     
     @Override
     public void writeQueryData(final ChannelHandlerContext context,
                                final ProxyDatabaseConnectionManager 
databaseConnectionManager, final QueryCommandExecutor queryCommandExecutor, 
final int headerPackagesCount) throws SQLException {
-        postgreSQLCommandExecuteEngine.writeQueryData(context, 
databaseConnectionManager, queryCommandExecutor, headerPackagesCount);
+        postgresqlCommandExecuteEngine.writeQueryData(context, 
databaseConnectionManager, queryCommandExecutor, headerPackagesCount);
     }
 }
diff --git 
a/proxy/frontend/type/opengauss/src/test/java/org/apache/shardingsphere/proxy/frontend/opengauss/OpenGaussFrontendEngineTest.java
 
b/proxy/frontend/type/opengauss/src/test/java/org/apache/shardingsphere/proxy/frontend/opengauss/OpenGaussFrontendEngineTest.java
index 51ebaff8c06..ee6411f43ec 100644
--- 
a/proxy/frontend/type/opengauss/src/test/java/org/apache/shardingsphere/proxy/frontend/opengauss/OpenGaussFrontendEngineTest.java
+++ 
b/proxy/frontend/type/opengauss/src/test/java/org/apache/shardingsphere/proxy/frontend/opengauss/OpenGaussFrontendEngineTest.java
@@ -44,7 +44,7 @@ class OpenGaussFrontendEngineTest {
     
     @BeforeEach
     void setup() throws ReflectiveOperationException {
-        
Plugins.getMemberAccessor().set(OpenGaussFrontendEngine.class.getDeclaredField("postgreSQLFrontendEngine"),
 openGaussFrontendEngine, mockPostgreSQLFrontendEngine);
+        
Plugins.getMemberAccessor().set(OpenGaussFrontendEngine.class.getDeclaredField("postgresqlFrontendEngine"),
 openGaussFrontendEngine, mockPostgreSQLFrontendEngine);
     }
     
     @Test
diff --git 
a/proxy/frontend/type/postgresql/src/main/java/org/apache/shardingsphere/proxy/frontend/postgresql/command/query/PostgreSQLCommand.java
 
b/proxy/frontend/type/postgresql/src/main/java/org/apache/shardingsphere/proxy/frontend/postgresql/command/query/PostgreSQLCommand.java
index 288fa6f5aee..e86e0a3dc51 100644
--- 
a/proxy/frontend/type/postgresql/src/main/java/org/apache/shardingsphere/proxy/frontend/postgresql/command/query/PostgreSQLCommand.java
+++ 
b/proxy/frontend/type/postgresql/src/main/java/org/apache/shardingsphere/proxy/frontend/postgresql/command/query/PostgreSQLCommand.java
@@ -167,8 +167,8 @@ public enum PostgreSQLCommand {
         return result.map(CachedResult::new).orElse(CachedResult.EMPTY);
     }
     
-    private static boolean matches(final Class<? extends SQLStatement> 
sqlStatementClass, final PostgreSQLCommand postgreSQLCommand) {
-        return postgreSQLCommand.sqlStatementClasses.stream().anyMatch(each -> 
each.isAssignableFrom(sqlStatementClass));
+    private static boolean matches(final Class<? extends SQLStatement> 
sqlStatementClass, final PostgreSQLCommand command) {
+        return command.sqlStatementClasses.stream().anyMatch(each -> 
each.isAssignableFrom(sqlStatementClass));
     }
     
     @RequiredArgsConstructor
diff --git 
a/proxy/frontend/type/postgresql/src/test/java/org/apache/shardingsphere/proxy/frontend/postgresql/command/query/extended/PostgreSQLBatchedStatementsExecutorTest.java
 
b/proxy/frontend/type/postgresql/src/test/java/org/apache/shardingsphere/proxy/frontend/postgresql/command/query/extended/PostgreSQLBatchedStatementsExecutorTest.java
index 6e21dc60f61..60233dfdc7b 100644
--- 
a/proxy/frontend/type/postgresql/src/test/java/org/apache/shardingsphere/proxy/frontend/postgresql/command/query/extended/PostgreSQLBatchedStatementsExecutorTest.java
+++ 
b/proxy/frontend/type/postgresql/src/test/java/org/apache/shardingsphere/proxy/frontend/postgresql/command/query/extended/PostgreSQLBatchedStatementsExecutorTest.java
@@ -94,12 +94,12 @@ class PostgreSQLBatchedStatementsExecutorTest {
                 .thenReturn(preparedStatement);
         ContextManager contextManager = mockContextManager();
         ConnectionSession connectionSession = mockConnectionSession();
-        PostgreSQLServerPreparedStatement postgreSQLPreparedStatement = new 
PostgreSQLServerPreparedStatement("insert into t (id, col) values (?, ?)", 
mockInsertStatementContext(),
+        PostgreSQLServerPreparedStatement postgresqlPreparedStatement = new 
PostgreSQLServerPreparedStatement("insert into t (id, col) values (?, ?)", 
mockInsertStatementContext(),
                 new HintValueContext(), 
Arrays.asList(PostgreSQLColumnType.INT4, PostgreSQLColumnType.VARCHAR), 
Arrays.asList(0, 1));
         List<List<Object>> parameterSets = Arrays.asList(Arrays.asList(1, new 
PostgreSQLTypeUnspecifiedSQLParameter("foo")),
                 Arrays.asList(2, new 
PostgreSQLTypeUnspecifiedSQLParameter("bar")), Arrays.asList(3, new 
PostgreSQLTypeUnspecifiedSQLParameter("baz")));
         
when(ProxyContext.getInstance().getContextManager()).thenReturn(contextManager);
-        PostgreSQLBatchedStatementsExecutor actual = new 
PostgreSQLBatchedStatementsExecutor(connectionSession, 
postgreSQLPreparedStatement, parameterSets);
+        PostgreSQLBatchedStatementsExecutor actual = new 
PostgreSQLBatchedStatementsExecutor(connectionSession, 
postgresqlPreparedStatement, parameterSets);
         prepareExecutionUnitParameters(actual, parameterSets);
         int actualUpdated = actual.executeBatch();
         assertThat(actualUpdated, is(3));
diff --git 
a/test/e2e/env/src/test/java/org/apache/shardingsphere/test/e2e/env/container/atomic/storage/StorageContainerFactory.java
 
b/test/e2e/env/src/test/java/org/apache/shardingsphere/test/e2e/env/container/atomic/storage/StorageContainerFactory.java
index c89ebed56ff..b4019af1311 100644
--- 
a/test/e2e/env/src/test/java/org/apache/shardingsphere/test/e2e/env/container/atomic/storage/StorageContainerFactory.java
+++ 
b/test/e2e/env/src/test/java/org/apache/shardingsphere/test/e2e/env/container/atomic/storage/StorageContainerFactory.java
@@ -37,21 +37,21 @@ public final class StorageContainerFactory {
      *
      * @param databaseType database type
      * @param storageContainerImage storage container image
-     * @param storageContainerConfiguration storage container configuration
+     * @param storageContainerConfig storage container configuration
      * @return created instance
      * @throws RuntimeException runtime exception
      */
     public static StorageContainer newInstance(final DatabaseType 
databaseType, final String storageContainerImage,
-                                               final 
StorageContainerConfiguration storageContainerConfiguration) {
+                                               final 
StorageContainerConfiguration storageContainerConfig) {
         switch (databaseType.getType()) {
             case "MySQL":
-                return new MySQLContainer(storageContainerImage, 
storageContainerConfiguration);
+                return new MySQLContainer(storageContainerImage, 
storageContainerConfig);
             case "PostgreSQL":
-                return new PostgreSQLContainer(storageContainerImage, 
storageContainerConfiguration);
+                return new PostgreSQLContainer(storageContainerImage, 
storageContainerConfig);
             case "openGauss":
-                return new OpenGaussContainer(storageContainerImage, 
storageContainerConfiguration);
+                return new OpenGaussContainer(storageContainerImage, 
storageContainerConfig);
             case "H2":
-                return new H2Container(storageContainerConfiguration);
+                return new H2Container(storageContainerConfig);
             default:
                 throw new RuntimeException(String.format("Database `%s` is 
unknown.", databaseType.getType()));
         }
diff --git 
a/test/e2e/env/src/test/java/org/apache/shardingsphere/test/e2e/env/container/atomic/storage/impl/H2Container.java
 
b/test/e2e/env/src/test/java/org/apache/shardingsphere/test/e2e/env/container/atomic/storage/impl/H2Container.java
index 7bdd5934f00..9282f4fe141 100644
--- 
a/test/e2e/env/src/test/java/org/apache/shardingsphere/test/e2e/env/container/atomic/storage/impl/H2Container.java
+++ 
b/test/e2e/env/src/test/java/org/apache/shardingsphere/test/e2e/env/container/atomic/storage/impl/H2Container.java
@@ -41,9 +41,9 @@ public final class H2Container extends 
EmbeddedStorageContainer {
     
     private final ScenarioDataPath scenarioDataPath;
     
-    public H2Container(final StorageContainerConfiguration 
storageContainerConfiguration) {
-        super(TypedSPILoader.getService(DatabaseType.class, "H2"), 
storageContainerConfiguration.getScenario());
-        scenarioDataPath = new 
ScenarioDataPath(storageContainerConfiguration.getScenario());
+    public H2Container(final StorageContainerConfiguration 
storageContainerConfig) {
+        super(TypedSPILoader.getService(DatabaseType.class, "H2"), 
storageContainerConfig.getScenario());
+        scenarioDataPath = new 
ScenarioDataPath(storageContainerConfig.getScenario());
     }
     
     @Override
diff --git 
a/test/util/src/main/java/org/apache/shardingsphere/test/util/PropertiesBuilder.java
 
b/test/util/src/main/java/org/apache/shardingsphere/test/util/PropertiesBuilder.java
index 2c7f4655fb5..0f879bf1848 100644
--- 
a/test/util/src/main/java/org/apache/shardingsphere/test/util/PropertiesBuilder.java
+++ 
b/test/util/src/main/java/org/apache/shardingsphere/test/util/PropertiesBuilder.java
@@ -32,12 +32,12 @@ public final class PropertiesBuilder {
     /**
      * Build properties.
      * 
-     * @param properties to be built properties
+     * @param props to be built properties
      * @return built properties
      */
-    public static Properties build(final Property... properties) {
+    public static Properties build(final Property... props) {
         Properties result = new Properties();
-        for (Property each : properties) {
+        for (Property each : props) {
             result.setProperty(each.key, each.value);
         }
         return result;

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