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justinchen pushed a commit to branch clean
in repository https://gitbox.apache.org/repos/asf/iotdb.git


The following commit(s) were added to refs/heads/clean by this push:
     new 5851451b073 fix
5851451b073 is described below

commit 5851451b073cd727e1fca6ed1ad3a78765a3738a
Author: Caideyipi <[email protected]>
AuthorDate: Fri Jan 9 09:51:15 2026 +0800

    fix
---
 .../org/apache/iotdb/db/it/IoTDBLoadTsFileIT.java  |  4 +--
 .../org/apache/iotdb/db/it/IoTDBRestServiceIT.java |  2 +-
 .../org/apache/iotdb/db/it/IoTDBSimpleQueryIT.java | 22 +++++++--------
 .../db/it/IoTDBSyntaxConventionIdentifierIT.java   | 32 +++++++++++-----------
 .../org/apache/iotdb/db/it/auth/IoTDBAuthIT.java   |  2 +-
 .../iotdb/db/it/auth/IoTDBSeriesPermissionIT.java  |  4 +--
 .../org/apache/iotdb/db/it/cq/IoTDBCQExecIT.java   | 14 +++++-----
 .../apache/iotdb/db/it/cq/IoTDBCQExecInNsIT.java   | 18 ++++++------
 .../apache/iotdb/db/it/cq/IoTDBCQExecInUsIT.java   | 12 ++++----
 .../java/org/apache/iotdb/db/it/cq/IoTDBCQIT.java  | 32 +++++++++++-----------
 .../iotdb/db/it/udf/IoTDBUDFWindowQuery2IT.java    | 20 +++++++-------
 .../db/it/udf/IoTDBUDTFBuiltinFunctionIT.java      | 24 ++++++++--------
 .../org/apache/iotdb/commons/path/PartialPath.java |  6 ++--
 .../iotdb/commons/path/fa/nfa/SimpleNFA.java       |  4 +--
 14 files changed, 98 insertions(+), 98 deletions(-)

diff --git 
a/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBLoadTsFileIT.java 
b/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBLoadTsFileIT.java
index b13d5d530c4..5adb94f7c20 100644
--- 
a/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBLoadTsFileIT.java
+++ 
b/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBLoadTsFileIT.java
@@ -979,7 +979,7 @@ public class IoTDBLoadTsFileIT {
 
       statement.execute(String.format("load \"%s\"", 
tmpDir.getAbsolutePath()));
 
-      try (final ResultSet resultSet = statement.executeQuery("show timeseries 
root.sg")) {
+      try (final ResultSet resultSet = statement.executeQuery("show timeseries 
root.db")) {
         Assert.assertFalse(resultSet.next());
       }
     }
@@ -1047,7 +1047,7 @@ public class IoTDBLoadTsFileIT {
       statement.execute(String.format("load \"%s\" sglevel=2", 
tmpDir.getAbsolutePath()));
 
       try (final ResultSet resultSet =
-          statement.executeQuery("select count(*) from root.sg.** group by 
level=1,2")) {
+          statement.executeQuery("select count(*) from root.db.** group by 
level=1,2")) {
         if (resultSet.next()) {
           final long sg1Count = resultSet.getLong("count(root.db.test_0.*.*)");
           Assert.assertEquals(writtenPoint1, sg1Count);
diff --git 
a/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBRestServiceIT.java 
b/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBRestServiceIT.java
index f6260684a0e..4821b6ba239 100644
--- 
a/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBRestServiceIT.java
+++ 
b/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBRestServiceIT.java
@@ -822,7 +822,7 @@ public class IoTDBRestServiceIT {
     CloseableHttpResponse response = null;
     try {
       HttpPost httpPost = getHttpPost("http://127.0.0.1:"; + port + 
"/rest/v1/query");
-      String sql = "{\"sql\":\"select *,s4+1,s4+1 from root.sg25\"}";
+      String sql = "{\"sql\":\"select *,s4+1,s4+1 from root.db25\"}";
       httpPost.setEntity(new StringEntity(sql, Charset.defaultCharset()));
       response = httpClient.execute(httpPost);
       HttpEntity responseEntity = response.getEntity();
diff --git 
a/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBSimpleQueryIT.java 
b/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBSimpleQueryIT.java
index 8806606c543..740085f3bc4 100644
--- 
a/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBSimpleQueryIT.java
+++ 
b/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBSimpleQueryIT.java
@@ -534,7 +534,7 @@ public class IoTDBSimpleQueryIT {
                   + ","
                   + resultSet.getString("root.db1.d0.s0")
                   + ","
-                  + resultSet.getString("root.sg1.d0.s1");
+                  + resultSet.getString("root.db1.d0.s1");
           assertEquals(ret[cur], ans);
           cur++;
         }
@@ -547,16 +547,16 @@ public class IoTDBSimpleQueryIT {
     try (Connection connection = EnvFactory.getEnv().getConnection();
         Statement statement = connection.createStatement()) {
       statement.setFetchSize(5);
-      statement.execute("CREATE DATABASE root.sg1");
-      statement.execute("CREATE TIMESERIES root.sg1.d0.s1 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
-      statement.execute("CREATE TIMESERIES root.sg1.d0.s2 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
-      statement.execute("CREATE TIMESERIES root.sg1.d0.s3 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
-      statement.execute("CREATE TIMESERIES root.sg1.d0.s4 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
-      statement.execute("CREATE TIMESERIES root.sg1.d0.s5 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
-      statement.execute("CREATE TIMESERIES root.sg1.d0.s6 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
-      statement.execute("CREATE TIMESERIES root.sg1.d0.s7 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
-      statement.execute("CREATE TIMESERIES root.sg1.d0.s8 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
-      statement.execute("CREATE TIMESERIES root.sg1.d0.s9 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
+      statement.execute("CREATE DATABASE root.db1");
+      statement.execute("CREATE TIMESERIES root.db1.d0.s1 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
+      statement.execute("CREATE TIMESERIES root.db1.d0.s2 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
+      statement.execute("CREATE TIMESERIES root.db1.d0.s3 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
+      statement.execute("CREATE TIMESERIES root.db1.d0.s4 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
+      statement.execute("CREATE TIMESERIES root.db1.d0.s5 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
+      statement.execute("CREATE TIMESERIES root.db1.d0.s6 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
+      statement.execute("CREATE TIMESERIES root.db1.d0.s7 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
+      statement.execute("CREATE TIMESERIES root.db1.d0.s8 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
+      statement.execute("CREATE TIMESERIES root.db1.d0.s9 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
       statement.execute("CREATE TIMESERIES root.sg1.d0.s10 WITH 
DATATYPE=INT32,ENCODING=PLAIN");
 
       statement.execute("flush");
diff --git 
a/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBSyntaxConventionIdentifierIT.java
 
b/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBSyntaxConventionIdentifierIT.java
index 14952d693ae..76d52a8fdcb 100644
--- 
a/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBSyntaxConventionIdentifierIT.java
+++ 
b/integration-test/src/test/java/org/apache/iotdb/db/it/IoTDBSyntaxConventionIdentifierIT.java
@@ -287,10 +287,10 @@ public class IoTDBSyntaxConventionIdentifierIT {
 
       for (int i = 0; i < selectNodeNames.length; i++) {
         String selectSql =
-            String.format("SELECT %s FROM root.sg1.d1 WHERE time = 1", 
selectNodeNames[i]);
+            String.format("SELECT %s FROM root.db1.d1 WHERE time = 1", 
selectNodeNames[i]);
         try (ResultSet resultSet = statement.executeQuery(selectSql)) {
           Assert.assertTrue(resultSet.next());
-          Assert.assertEquals(1, resultSet.getInt("root.sg1.d1." + 
suffixInResultColumns[i]));
+          Assert.assertEquals(1, resultSet.getInt("root.db1.d1." + 
suffixInResultColumns[i]));
         }
       }
 
@@ -307,76 +307,76 @@ public class IoTDBSyntaxConventionIdentifierIT {
 
       // nodeName with special characters should be quoted with '`'
       try {
-        statement.execute("create timeseries root.sg1.d1.`a INT32");
+        statement.execute("create timeseries root.db1.d1.`a INT32");
         fail();
       } catch (Exception ignored) {
       }
 
       try {
-        statement.execute("create timeseries root.sg1.d1.[a INT32");
+        statement.execute("create timeseries root.db1.d1.[a INT32");
         fail();
       } catch (Exception ignored) {
       }
 
       try {
-        statement.execute("create timeseries root.sg1.d1.a! INT32");
+        statement.execute("create timeseries root.db1.d1.a! INT32");
         fail();
       } catch (Exception ignored) {
       }
 
       try {
-        statement.execute("create timeseries root.sg1.d1.a\" INT32");
+        statement.execute("create timeseries root.db1.d1.a\" INT32");
         fail();
       } catch (Exception ignored) {
       }
 
       try {
-        statement.execute("create timeseries root.sg1.d1.a' INT32");
+        statement.execute("create timeseries root.db1.d1.a' INT32");
         fail();
       } catch (Exception ignored) {
       }
 
       // nodeName consists of numbers should be quoted with '`'
       try {
-        statement.execute("create timeseries root.sg1.d1.111 INT32");
+        statement.execute("create timeseries root.db1.d1.111 INT32");
         fail();
       } catch (Exception ignored) {
       }
 
       try {
-        statement.execute("create timeseries root.sg1.d1.012 INT32");
+        statement.execute("create timeseries root.db1.d1.012 INT32");
         fail();
       } catch (Exception ignored) {
       }
 
       // shouled use double '`' in a quoted nodeName
       try {
-        statement.execute("create timeseries root.sg1.d1.`a`` INT32");
+        statement.execute("create timeseries root.db1.d1.`a`` INT32");
         fail();
       } catch (Exception ignored) {
       }
 
       try {
-        statement.execute("create timeseries root.sg1.d1.``a` INT32");
+        statement.execute("create timeseries root.db1.d1.``a` INT32");
         fail();
       } catch (Exception ignored) {
       }
 
       // reserved words can not be identifier
       try {
-        statement.execute("create timeseries root.sg1.d1.root INT32");
+        statement.execute("create timeseries root.db1.d1.root INT32");
         fail();
       } catch (Exception ignored) {
       }
 
       try {
-        statement.execute("create timeseries root.sg1.d1.time INT32");
+        statement.execute("create timeseries root.db1.d1.time INT32");
         fail();
       } catch (Exception ignored) {
       }
 
       try {
-        statement.execute("create timeseries root.sg1.d1.timestamp INT32");
+        statement.execute("create timeseries root.db1.d1.timestamp INT32");
         fail();
       } catch (Exception ignored) {
       }
@@ -393,7 +393,7 @@ public class IoTDBSyntaxConventionIdentifierIT {
         Statement statement = connection.createStatement()) {
 
       try {
-        statement.execute("create database root.sg1.d1.");
+        statement.execute("create database root.db1.d1.");
         fail();
       } catch (Exception ignored) {
       }
@@ -408,7 +408,7 @@ public class IoTDBSyntaxConventionIdentifierIT {
   public void testExpression() {
     try (Connection connection = EnvFactory.getEnv().getConnection();
         Statement statement = connection.createStatement()) {
-      statement.execute("CREATE TIMESERIES root.sg1.d1.`1` INT32");
+      statement.execute("CREATE TIMESERIES root.db1.d1.`1` INT32");
       statement.execute("CREATE TIMESERIES root.sg1.d1.`a.b` INT32");
       statement.execute("CREATE TIMESERIES root.sg1.d1.`a.``b` INT32");
       statement.execute("CREATE TIMESERIES root.sg1.d1.text TEXT");
diff --git 
a/integration-test/src/test/java/org/apache/iotdb/db/it/auth/IoTDBAuthIT.java 
b/integration-test/src/test/java/org/apache/iotdb/db/it/auth/IoTDBAuthIT.java
index 441dd1fdb5c..1b7deda9768 100644
--- 
a/integration-test/src/test/java/org/apache/iotdb/db/it/auth/IoTDBAuthIT.java
+++ 
b/integration-test/src/test/java/org/apache/iotdb/db/it/auth/IoTDBAuthIT.java
@@ -200,7 +200,7 @@ public class IoTDBAuthIT {
           Statement userStmt = userCon.createStatement()) {
 
         Assert.assertThrows(
-            SQLException.class, () -> userStmt.execute("CREATE DATABASE 
root.sgtest"));
+            SQLException.class, () -> userStmt.execute("CREATE DATABASE 
root.dbtest"));
 
         adminStmt.execute("GRANT SYSTEM ON root.** TO USER sgtest");
 
diff --git 
a/integration-test/src/test/java/org/apache/iotdb/db/it/auth/IoTDBSeriesPermissionIT.java
 
b/integration-test/src/test/java/org/apache/iotdb/db/it/auth/IoTDBSeriesPermissionIT.java
index ad34c1cc0b9..39fc5e063b5 100644
--- 
a/integration-test/src/test/java/org/apache/iotdb/db/it/auth/IoTDBSeriesPermissionIT.java
+++ 
b/integration-test/src/test/java/org/apache/iotdb/db/it/auth/IoTDBSeriesPermissionIT.java
@@ -260,9 +260,9 @@ public class IoTDBSeriesPermissionIT {
   }
 
   private void testWriteData() {
-    grantUserSeriesPrivilege("test1", PrivilegeType.WRITE_DATA, 
"root.sg.d1.s1");
+    grantUserSeriesPrivilege("test1", PrivilegeType.WRITE_DATA, 
"root.db.d1.s1");
     assertNonQueryTestFail(
-        "insert into root.sg.d1(time,s1,s2) values(1,1,1)",
+        "insert into root.db.d1(time,s1,s2) values(1,1,1)",
         "803: No permissions for this operation, please add privilege 
WRITE_DATA on [root.sg.d1.s2]",
         "test1",
         "test123123456");
diff --git 
a/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQExecIT.java 
b/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQExecIT.java
index 9a6a1577eb8..94cf4ef1856 100644
--- 
a/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQExecIT.java
+++ 
b/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQExecIT.java
@@ -305,14 +305,14 @@ public class IoTDBCQExecIT {
 
       try (ResultSet resultSet =
           statement.executeQuery(
-              "select s1_max from root.sg.d3 where time between "
+              "select s1_max from root.db.d3 where time between "
                   + (startTime - 1_000)
                   + " and "
                   + (startTime + 4_000))) {
         int cnt = 0;
         while (resultSet.next()) {
           assertEquals(expectedTime[cnt], resultSet.getLong(TIMESTAMP_STR));
-          assertEquals(expectedValue[cnt], 
resultSet.getLong("root.sg.d3.s1_max"));
+          assertEquals(expectedValue[cnt], 
resultSet.getLong("root.db.d3.s1_max"));
           cnt++;
         }
         assertEquals(expectedTime.length, cnt);
@@ -329,19 +329,19 @@ public class IoTDBCQExecIT {
   @Test
   public void testCQExecution4() {
     String insertTemplate =
-        "INSERT INTO root.sg.d4(time, s1) VALUES (%d, %d), (%d, %d), (%d, %d), 
(%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d)";
+        "INSERT INTO root.db.d4(time, s1) VALUES (%d, %d), (%d, %d), (%d, %d), 
(%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d)";
     try (Connection connection = EnvFactory.getEnv().getConnection();
         Statement statement = connection.createStatement()) {
       long now = System.currentTimeMillis();
       long firstExecutionTime = now + 10_000;
       long startTime = firstExecutionTime - 3_000;
 
-      statement.execute("create timeseries root.sg.d4.s1 WITH DATATYPE=INT64");
-      statement.execute("create timeseries root.sg.d4.s1_max WITH 
DATATYPE=INT64");
+      statement.execute("create timeseries root.db.d4.s1 WITH DATATYPE=INT64");
+      statement.execute("create timeseries root.db.d4.s1_max WITH 
DATATYPE=INT64");
 
       // firstly write one row to init data region, just for accelerating the 
following insert
       // statement.
-      statement.execute("INSERT INTO root.sg.d4(time, s1) VALUES (0,0)");
+      statement.execute("INSERT INTO root.db.d4(time, s1) VALUES (0,0)");
 
       statement.execute(
           String.format(
@@ -374,7 +374,7 @@ public class IoTDBCQExecIT {
               + "RANGE 2s, 1s\n"
               + "BEGIN \n"
               + "  SELECT max_value(s1) \n"
-              + "  INTO root.sg.d4(s1_max)\n"
+              + "  INTO root.db.d4(s1_max)\n"
               + "  FROM root.sg.d4\n"
               + "  GROUP BY(1s) \n"
               + "END");
diff --git 
a/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQExecInNsIT.java
 
b/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQExecInNsIT.java
index f29b527fa0d..5472277ffc9 100644
--- 
a/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQExecInNsIT.java
+++ 
b/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQExecInNsIT.java
@@ -155,11 +155,11 @@ public class IoTDBCQExecInNsIT {
       long startTime = firstExecutionTime - 3_000_000_000L;
 
       statement.execute("create timeseries root.db.d2.s1 WITH DATATYPE=INT64");
-      statement.execute("create timeseries root.sg.d2.s1_max WITH 
DATATYPE=INT64");
+      statement.execute("create timeseries root.db.d2.s1_max WITH 
DATATYPE=INT64");
 
       // firstly write one row to init data region, just for accelerating the 
following insert
       // statement.
-      statement.execute("INSERT INTO root.sg.d2(time, s1) VALUES (0,0)");
+      statement.execute("INSERT INTO root.db.d2(time, s1) VALUES (0,0)");
 
       statement.execute(
           String.format(
@@ -192,8 +192,8 @@ public class IoTDBCQExecInNsIT {
               + "RANGE 4s \n"
               + "BEGIN \n"
               + "  SELECT max_value(s1) \n"
-              + "  INTO root.sg.d2(s1_max)\n"
-              + "  FROM root.sg.d2\n"
+              + "  INTO root.db.d2(s1_max)\n"
+              + "  FROM root.db.d2\n"
               + "  GROUP BY(1s) \n"
               + "END");
 
@@ -218,11 +218,11 @@ public class IoTDBCQExecInNsIT {
       };
       long[] expectedValue = {2, 4, 6, 8, 10};
 
-      try (ResultSet resultSet = statement.executeQuery("select s1_max from 
root.sg.d2")) {
+      try (ResultSet resultSet = statement.executeQuery("select s1_max from 
root.db.d2")) {
         int cnt = 0;
         while (resultSet.next()) {
           assertEquals(expectedTime[cnt], resultSet.getLong(TIMESTAMP_STR));
-          assertEquals(expectedValue[cnt], 
resultSet.getLong("root.sg.d2.s1_max"));
+          assertEquals(expectedValue[cnt], 
resultSet.getLong("root.db.d2.s1_max"));
           cnt++;
         }
         assertEquals(expectedTime.length, cnt);
@@ -239,15 +239,15 @@ public class IoTDBCQExecInNsIT {
   @Test
   public void testCQExecution3() {
     String insertTemplate =
-        "INSERT INTO root.sg.d3(time, s1) VALUES (%d, %d), (%d, %d), (%d, %d), 
(%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d)";
+        "INSERT INTO root.db.d3(time, s1) VALUES (%d, %d), (%d, %d), (%d, %d), 
(%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d), (%d, %d)";
     try (Connection connection = EnvFactory.getEnv().getConnection();
         Statement statement = connection.createStatement()) {
       long now = System.currentTimeMillis() * 1_000_000L;
       long firstExecutionTime = now + 10_000_000_000L;
       long startTime = firstExecutionTime - 3_000_000_000L;
 
-      statement.execute("create timeseries root.sg.d3.s1 WITH DATATYPE=INT64");
-      statement.execute("create timeseries root.sg.d3.s1_max WITH 
DATATYPE=INT64");
+      statement.execute("create timeseries root.db.d3.s1 WITH DATATYPE=INT64");
+      statement.execute("create timeseries root.db.d3.s1_max WITH 
DATATYPE=INT64");
 
       // firstly write one row to init data region, just for accelerating the 
following insert
       // statement.
diff --git 
a/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQExecInUsIT.java
 
b/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQExecInUsIT.java
index ba3ad9a8593..7ef0bc5362c 100644
--- 
a/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQExecInUsIT.java
+++ 
b/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQExecInUsIT.java
@@ -155,11 +155,11 @@ public class IoTDBCQExecInUsIT {
       long startTime = firstExecutionTime - 3_000_000L;
 
       statement.execute("create timeseries root.db.d2.s1 WITH DATATYPE=INT64");
-      statement.execute("create timeseries root.sg.d2.s1_max WITH 
DATATYPE=INT64");
+      statement.execute("create timeseries root.db.d2.s1_max WITH 
DATATYPE=INT64");
 
       // firstly write one row to init data region, just for accelerating the 
following insert
       // statement.
-      statement.execute("INSERT INTO root.sg.d2(time, s1) VALUES (0,0)");
+      statement.execute("INSERT INTO root.db.d2(time, s1) VALUES (0,0)");
 
       statement.execute(
           String.format(
@@ -192,8 +192,8 @@ public class IoTDBCQExecInUsIT {
               + "RANGE 4s \n"
               + "BEGIN \n"
               + "  SELECT max_value(s1) \n"
-              + "  INTO root.sg.d2(s1_max)\n"
-              + "  FROM root.sg.d2\n"
+              + "  INTO root.db.d2(s1_max)\n"
+              + "  FROM root.db.d2\n"
               + "  GROUP BY(1s) \n"
               + "END");
 
@@ -218,11 +218,11 @@ public class IoTDBCQExecInUsIT {
       };
       long[] expectedValue = {2, 4, 6, 8, 10};
 
-      try (ResultSet resultSet = statement.executeQuery("select s1_max from 
root.sg.d2")) {
+      try (ResultSet resultSet = statement.executeQuery("select s1_max from 
root.db.d2")) {
         int cnt = 0;
         while (resultSet.next()) {
           assertEquals(expectedTime[cnt], resultSet.getLong(TIMESTAMP_STR));
-          assertEquals(expectedValue[cnt], 
resultSet.getLong("root.sg.d2.s1_max"));
+          assertEquals(expectedValue[cnt], 
resultSet.getLong("root.db.d2.s1_max"));
           cnt++;
         }
         assertEquals(expectedTime.length, cnt);
diff --git 
a/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQIT.java 
b/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQIT.java
index a0a81380644..22c546e1258 100644
--- a/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQIT.java
+++ b/integration-test/src/test/java/org/apache/iotdb/db/it/cq/IoTDBCQIT.java
@@ -182,7 +182,7 @@ public class IoTDBCQIT {
                 + "BEGIN \n"
                 + "  SELECT count(s1)\n"
                 + "    INTO root.db_count.d(count_s1)\n"
-                + "    FROM root.sg.d\n"
+                + "    FROM root.db.d\n"
                 + "    GROUP BY(30m)\n"
                 + "END";
         statement.execute(sql);
@@ -201,8 +201,8 @@ public class IoTDBCQIT {
                 + "RESAMPLE RANGE 30m, -1m\n"
                 + "BEGIN \n"
                 + "  SELECT count(s1)  \n"
-                + "    INTO root.sg_count.d(count_s1)\n"
-                + "    FROM root.sg.d\n"
+                + "    INTO root.db_count.d(count_s1)\n"
+                + "    FROM root.db.d\n"
                 + "    GROUP BY(30m)\n"
                 + "END";
         statement.execute(sql);
@@ -221,8 +221,8 @@ public class IoTDBCQIT {
                 + "RESAMPLE RANGE 30m, 30m\n"
                 + "BEGIN \n"
                 + "  SELECT count(s1)  \n"
-                + "    INTO root.sg_count.d(count_s1)\n"
-                + "    FROM root.sg.d\n"
+                + "    INTO root.db_count.d(count_s1)\n"
+                + "    FROM root.db.d\n"
                 + "    GROUP BY(30m)\n"
                 + "END";
         statement.execute(sql);
@@ -241,8 +241,8 @@ public class IoTDBCQIT {
                 + "RESAMPLE RANGE 30m, 31m\n"
                 + "BEGIN \n"
                 + "  SELECT count(s1)  \n"
-                + "    INTO root.sg_count.d(count_s1)\n"
-                + "    FROM root.sg.d\n"
+                + "    INTO root.db_count.d(count_s1)\n"
+                + "    FROM root.db.d\n"
                 + "    GROUP BY(30m)\n"
                 + "END";
         statement.execute(sql);
@@ -261,8 +261,8 @@ public class IoTDBCQIT {
                 + "RESAMPLE RANGE 30m\n"
                 + "BEGIN \n"
                 + "  SELECT count(s1) \n"
-                + "    INTO root.sg_count.d(count_s1)\n"
-                + "    FROM root.sg.d\n"
+                + "    INTO root.db_count.d(count_s1)\n"
+                + "    FROM root.db.d\n"
                 + "    GROUP BY(1h)\n"
                 + "END";
         statement.execute(sql);
@@ -282,8 +282,8 @@ public class IoTDBCQIT {
                 + "TIMEOUT POLICY UNKNOWN\n"
                 + "BEGIN \n"
                 + "  SELECT count(s1)  \n"
-                + "    INTO root.sg_count.d(count_s1)\n"
-                + "    FROM root.sg.d\n"
+                + "    INTO root.db_count.d(count_s1)\n"
+                + "    FROM root.db.d\n"
                 + "    GROUP BY(1h)\n"
                 + "END";
         statement.execute(sql);
@@ -301,8 +301,8 @@ public class IoTDBCQIT {
             "CREATE CQ s1_count_cq \n"
                 + "BEGIN \n"
                 + "  SELECT count(s1)  \n"
-                + "    INTO root.sg_count.d(count_s1)\n"
-                + "    FROM root.sg.d\n"
+                + "    INTO root.db_count.d(count_s1)\n"
+                + "    FROM root.db.d\n"
                 + "    GROUP BY(30m)\n"
                 + "END";
         statement.execute(sql);
@@ -339,8 +339,8 @@ public class IoTDBCQIT {
                 + "TIMEOUT POLICY BLOCKED\n"
                 + "BEGIN \n"
                 + "  SELECT count(s1)  \n"
-                + "    INTO root.sg_count.d(count_s1)\n"
-                + "    FROM root.sg.d\n"
+                + "    INTO root.db_count.d(count_s1)\n"
+                + "    FROM root.db.d\n"
                 + "    GROUP BY(30m)\n"
                 + "END";
         statement.execute(sql);
@@ -354,7 +354,7 @@ public class IoTDBCQIT {
             "CREATE CQ correct_cq_2\n"
                 + "BEGIN \n"
                 + "  SELECT count(s1)  \n"
-                + "    INTO root.sg_count.d(count_s1)\n"
+                + "    INTO root.db_count.d(count_s1)\n"
                 + "    FROM root.sg.d\n"
                 + "    GROUP BY(30m)\n"
                 + "END";
diff --git 
a/integration-test/src/test/java/org/apache/iotdb/db/it/udf/IoTDBUDFWindowQuery2IT.java
 
b/integration-test/src/test/java/org/apache/iotdb/db/it/udf/IoTDBUDFWindowQuery2IT.java
index a6f5dce0d88..42ed5cecc56 100644
--- 
a/integration-test/src/test/java/org/apache/iotdb/db/it/udf/IoTDBUDFWindowQuery2IT.java
+++ 
b/integration-test/src/test/java/org/apache/iotdb/db/it/udf/IoTDBUDFWindowQuery2IT.java
@@ -82,11 +82,11 @@ public class IoTDBUDFWindowQuery2IT {
       statement.execute("INSERT INTO root.db.d1(time, s1, s2) VALUES (3, 3, 
3)");
       statement.execute("INSERT INTO root.db.d1(time, s1, s2) VALUES (9, 9, 
9)");
       statement.execute("INSERT INTO root.db.d1(time, s1, s2) VALUES (5, 5, 
5)");
-      statement.execute("INSERT INTO root.sg.d1(time, s1, s2) VALUES (12, 12, 
12)");
-      statement.execute("INSERT INTO root.sg.d1(time, s1, s2) VALUES (14, 14, 
14)");
-      statement.execute("INSERT INTO root.sg.d1(time, s1, s2) VALUES (18, 18, 
18)");
-      statement.execute("INSERT INTO root.sg.d1(time, s1, s2) VALUES (21, 21, 
21)");
-      statement.execute("INSERT INTO root.sg.d1(time, s1, s2) VALUES (24, 24, 
24)");
+      statement.execute("INSERT INTO root.db.d1(time, s1, s2) VALUES (12, 12, 
12)");
+      statement.execute("INSERT INTO root.db.d1(time, s1, s2) VALUES (14, 14, 
14)");
+      statement.execute("INSERT INTO root.db.d1(time, s1, s2) VALUES (18, 18, 
18)");
+      statement.execute("INSERT INTO root.db.d1(time, s1, s2) VALUES (21, 21, 
21)");
+      statement.execute("INSERT INTO root.db.d1(time, s1, s2) VALUES (24, 24, 
24)");
     } catch (SQLException throwable) {
       fail(throwable.getMessage());
     }
@@ -129,7 +129,7 @@ public class IoTDBUDFWindowQuery2IT {
     if (displayBegin == null) {
       sql =
           String.format(
-              "select window_start_end(s1, '%s'='%s', '%s'='%s') from 
root.sg.d1",
+              "select window_start_end(s1, '%s'='%s', '%s'='%s') from 
root.db.d1",
               UDFTestConstant.ACCESS_STRATEGY_KEY,
               UDFTestConstant.ACCESS_STRATEGY_SESSION,
               UDFTestConstant.SESSION_GAP_KEY,
@@ -137,7 +137,7 @@ public class IoTDBUDFWindowQuery2IT {
     } else {
       sql =
           String.format(
-              "select window_start_end(s1, '%s'='%s', '%s'='%s', '%s'='%s', 
'%s'='%s') from root.sg.d1",
+              "select window_start_end(s1, '%s'='%s', '%s'='%s', '%s'='%s', 
'%s'='%s') from root.db.d1",
               UDFTestConstant.ACCESS_STRATEGY_KEY,
               UDFTestConstant.ACCESS_STRATEGY_SESSION,
               UDFTestConstant.DISPLAY_WINDOW_BEGIN_KEY,
@@ -171,12 +171,12 @@ public class IoTDBUDFWindowQuery2IT {
       if (delta == null) {
         sql =
             String.format(
-                "select window_start_end(%s, '%s'='%s') from root.sg.d1",
+                "select window_start_end(%s, '%s'='%s') from root.db.d1",
                 "s2", UDFTestConstant.ACCESS_STRATEGY_KEY, 
UDFTestConstant.ACCESS_STRATEGY_STATE);
       } else {
         sql =
             String.format(
-                "select window_start_end(%s, '%s'='%s', '%s'='%s') from 
root.sg.d1",
+                "select window_start_end(%s, '%s'='%s', '%s'='%s') from 
root.db.d1",
                 "s2",
                 UDFTestConstant.ACCESS_STRATEGY_KEY,
                 UDFTestConstant.ACCESS_STRATEGY_STATE,
@@ -186,7 +186,7 @@ public class IoTDBUDFWindowQuery2IT {
     } else {
       sql =
           String.format(
-              "select window_start_end(%s, '%s'='%s', '%s'='%s', '%s'='%s', 
'%s'='%s') from root.sg.d1",
+              "select window_start_end(%s, '%s'='%s', '%s'='%s', '%s'='%s', 
'%s'='%s') from root.db.d1",
               "s2",
               UDFTestConstant.ACCESS_STRATEGY_KEY,
               UDFTestConstant.ACCESS_STRATEGY_STATE,
diff --git 
a/integration-test/src/test/java/org/apache/iotdb/db/it/udf/IoTDBUDTFBuiltinFunctionIT.java
 
b/integration-test/src/test/java/org/apache/iotdb/db/it/udf/IoTDBUDTFBuiltinFunctionIT.java
index 471aba1d927..554808ea032 100644
--- 
a/integration-test/src/test/java/org/apache/iotdb/db/it/udf/IoTDBUDTFBuiltinFunctionIT.java
+++ 
b/integration-test/src/test/java/org/apache/iotdb/db/it/udf/IoTDBUDTFBuiltinFunctionIT.java
@@ -56,11 +56,11 @@ public class IoTDBUDTFBuiltinFunctionIT {
 
   private static final String[] INSERTION_SQLS = {
     "insert into root.db.d1(time, s1, s2, s3, s4, s5, s6, s7, s8, s10, s11, 
s12) values (0, 0, 0, 0, 0, true, '0', 0, 0, '2024-01-01', 0, '0')",
-    "insert into root.sg.d1(time, s1, s2, s3, s4, s5, s6, s7, s10, s11, s12) 
values (2, 1, 1, 1, 1, false, '1', 1, '2024-01-02', 1, '1')",
-    "insert into root.sg.d1(time, s1, s2, s3, s4, s5, s6, s7, s10, s11, s12) 
values (4, 2, 2, 2, 2, false, '2', 2, '2024-01-03', 2, '2')",
-    "insert into root.sg.d1(time, s1, s2, s3, s4, s5, s6, s8, s10, s11, s12) 
values (6, 3, 3, 3, 3, true, '3', 3, '2024-01-04', 3, '3')",
-    "insert into root.sg.d1(time, s1, s2, s3, s4, s5, s6, s8, s10, s11, s12) 
values (8, 4, 4, 4, 4, true, '4', 4, '2024-01-05', 4, '4')",
-    "insert into root.sg.d1(time, s1, s2, s3, s4, s5, s6, s8, s10, s11, s12) 
values (10000000000, 5, 5, 5, 5, false, '5', 5, '2024-01-06', 5, '5')"
+    "insert into root.db.d1(time, s1, s2, s3, s4, s5, s6, s7, s10, s11, s12) 
values (2, 1, 1, 1, 1, false, '1', 1, '2024-01-02', 1, '1')",
+    "insert into root.db.d1(time, s1, s2, s3, s4, s5, s6, s7, s10, s11, s12) 
values (4, 2, 2, 2, 2, false, '2', 2, '2024-01-03', 2, '2')",
+    "insert into root.db.d1(time, s1, s2, s3, s4, s5, s6, s8, s10, s11, s12) 
values (6, 3, 3, 3, 3, true, '3', 3, '2024-01-04', 3, '3')",
+    "insert into root.db.d1(time, s1, s2, s3, s4, s5, s6, s8, s10, s11, s12) 
values (8, 4, 4, 4, 4, true, '4', 4, '2024-01-05', 4, '4')",
+    "insert into root.db.d1(time, s1, s2, s3, s4, s5, s6, s8, s10, s11, s12) 
values (10000000000, 5, 5, 5, 5, false, '5', 5, '2024-01-06', 5, '5')"
   };
 
   private static final double E = 0.0001;
@@ -80,13 +80,13 @@ public class IoTDBUDTFBuiltinFunctionIT {
   private static void createTimeSeries() {
     try (Connection connection = EnvFactory.getEnv().getConnection();
         Statement statement = connection.createStatement()) {
-      statement.execute("CREATE DATABASE root.sg");
-      statement.execute("CREATE TIMESERIES root.sg.d1.s1 with 
datatype=INT32,encoding=PLAIN");
-      statement.execute("CREATE TIMESERIES root.sg.d1.s2 with 
datatype=INT64,encoding=PLAIN");
-      statement.execute("CREATE TIMESERIES root.sg.d1.s3 with 
datatype=FLOAT,encoding=PLAIN");
-      statement.execute("CREATE TIMESERIES root.sg.d1.s4 with 
datatype=DOUBLE,encoding=PLAIN");
-      statement.execute("CREATE TIMESERIES root.sg.d1.s5 with 
datatype=BOOLEAN,encoding=PLAIN");
-      statement.execute("CREATE TIMESERIES root.sg.d1.s6 with 
datatype=TEXT,encoding=PLAIN");
+      statement.execute("CREATE DATABASE root.db");
+      statement.execute("CREATE TIMESERIES root.db.d1.s1 with 
datatype=INT32,encoding=PLAIN");
+      statement.execute("CREATE TIMESERIES root.db.d1.s2 with 
datatype=INT64,encoding=PLAIN");
+      statement.execute("CREATE TIMESERIES root.db.d1.s3 with 
datatype=FLOAT,encoding=PLAIN");
+      statement.execute("CREATE TIMESERIES root.db.d1.s4 with 
datatype=DOUBLE,encoding=PLAIN");
+      statement.execute("CREATE TIMESERIES root.db.d1.s5 with 
datatype=BOOLEAN,encoding=PLAIN");
+      statement.execute("CREATE TIMESERIES root.db.d1.s6 with 
datatype=TEXT,encoding=PLAIN");
       statement.execute("CREATE TIMESERIES root.sg.d1.s10 with 
datatype=DATE,encoding=PLAIN");
       statement.execute("CREATE TIMESERIES root.sg.d1.s11 with 
datatype=TIMESTAMP,encoding=PLAIN");
       statement.execute("CREATE TIMESERIES root.sg.d1.s12 with 
datatype=STRING,encoding=PLAIN");
diff --git 
a/iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/path/PartialPath.java
 
b/iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/path/PartialPath.java
index 53aa0d9f067..1904c5460a8 100644
--- 
a/iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/path/PartialPath.java
+++ 
b/iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/path/PartialPath.java
@@ -439,8 +439,8 @@ public class PartialPath extends Path implements 
Comparable<Path>, Cloneable {
   /**
    * Test if current PartialPath matches a full path. Current partialPath acts 
as a full path
    * pattern. rPath is supposed to be a full timeseries path without 
wildcards. e.g.
-   * "root.db.device.*" matches path "root.db.device.s1" whereas it does not 
match "root.sg.device"
-   * and "root.sg.vehicle.s1"
+   * "root.db.device.*" matches path "root.db.device.s1" whereas it does not 
match "root.db.device"
+   * and "root.db.vehicle.s1"
    *
    * @param rPath a plain full path of a timeseries
    * @return true if a successful match, otherwise return false
@@ -458,7 +458,7 @@ public class PartialPath extends Path implements 
Comparable<Path>, Cloneable {
    *
    * <p>For example:
    *
-   * <p>1) Pattern "root.sg1.d1.*" can match prefix path "root.sg1.d1.s1", 
"root.sg1.d1",
+   * <p>1) Pattern "root.db1.d1.*" can match prefix path "root.sg1.d1.s1", 
"root.sg1.d1",
    * "root.sg1", "root" etc.
    *
    * <p>1) Pattern "root.sg1.d1.*" does not match prefix path "root.sg2", 
"root.sg1.d2".
diff --git 
a/iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/path/fa/nfa/SimpleNFA.java
 
b/iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/path/fa/nfa/SimpleNFA.java
index 2a0304394ca..317933d840e 100644
--- 
a/iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/path/fa/nfa/SimpleNFA.java
+++ 
b/iotdb-core/node-commons/src/main/java/org/apache/iotdb/commons/path/fa/nfa/SimpleNFA.java
@@ -38,7 +38,7 @@ import static 
org.apache.iotdb.commons.conf.IoTDBConstant.MULTI_LEVEL_PATH_WILDC
 import static 
org.apache.iotdb.commons.conf.IoTDBConstant.ONE_LEVEL_PATH_WILDCARD;
 
 /**
- * Given path pattern root.sg.*.s, the SimpleNFA is:
+ * Given path pattern root.db.*.s, the SimpleNFA is:
  *
  * <p>initial -(root)-> state[0] -(sg)-> state[1] -(*)-> state[2] -(s)-> 
state[3] <br>
  * state[3] is final state
@@ -49,7 +49,7 @@ import static 
org.apache.iotdb.commons.conf.IoTDBConstant.ONE_LEVEL_PATH_WILDCAR
  * with extra: state[1] -(*)-> state[1] and state[2] -(*)-> state[1] <br>
  * state[3] is final state
  *
- * <p>Given path pattern root.sg.d with prefix match, the SimpleNFA is:
+ * <p>Given path pattern root.db.d with prefix match, the SimpleNFA is:
  *
  * <p>initial -(root)-> state[0] -(sg)-> state[1] -(d)-> state[2] -(*)-> 
state[3] <br>
  * with extra: state[3] -(*)-> state[3] <br>


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