dengxiaolin23 opened a new issue, #28951:
URL: https://github.com/apache/shardingsphere/issues/28951
1. Configure config shadow. yaml as follows：
databaseName: shadow_db
dataSources:
db_mblog:
url:
jdbc:mysql://192.168.0.189:3306/db_mblog?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&allowPublicKeyRetrieval=true
username: root
password: 123456
connectionTimeoutMilliseconds: 30000
idleTimeoutMilliseconds: 60000
maxLifetimeMilliseconds: 1800000
maxPoolSize: 50
minPoolSize: 1
ds_db_mblog:
url:
jdbc:mysql://192.168.0.189:3306/db_mblog?characterEncoding=utf8&useSSL=false&serverTimezone=Asia/Shanghai&allowPublicKeyRetrieval=true
username: root
password: 123456
connectionTimeoutMilliseconds: 30000
idleTimeoutMilliseconds: 60000
maxLifetimeMilliseconds: 1800000
rules:
- !SHADOW
dataSources:
shadowDataSource:
productionDataSourceName: db_mblog
shadowDataSourceName: ds_db_mblog
shadowAlgorithms:
sql_hint_algorithm:
type: SQL_HINT
props:
cyborg-flow: true
2. Configure my APP's config as follows:
url:
jdbc:mysql://192.168.0.189:3307/shadow_db?useSSL=false&characterEncoding=utf8&serverTimezone=GMT%2B8
3.start app.
4.start app failed and report an error as follows:
[ERROR] 2023-11-03 18:08:08.843 [ShardingSphere-Command-2]
o.a.s.p.f.c.CommandExecutorTask - Exception occur:
java.lang.ClassCastException: org.apache.calcite.rex.RexSubQuery cannot be
cast to org.apache.calcite.rex.RexLocalRef
at
org.apache.calcite.rex.RexProgramBuilder.registerInput(RexProgramBuilder.java:304)
at
org.apache.calcite.rex.RexProgramBuilder.addProject(RexProgramBuilder.java:213)
at org.apache.calcite.rex.RexProgram.create(RexProgram.java:235)
at org.apache.calcite.rex.RexProgram.create(RexProgram.java:204)
at
org.apache.calcite.rel.rules.ProjectToCalcRule.onMatch(ProjectToCalcRule.java:65)
at
org.apache.calcite.plan.AbstractRelOptPlanner.fireRule(AbstractRelOptPlanner.java:337)
at
org.apache.calcite.plan.hep.HepPlanner.applyRule(HepPlanner.java:556)
at
org.apache.calcite.plan.hep.HepPlanner.applyRules(HepPlanner.java:420)
at
org.apache.calcite.plan.hep.HepPlanner.executeEndGroup(HepPlanner.java:360)
at
org.apache.calcite.plan.hep.HepInstruction$EndGroup$State.execute(HepInstruction.java:349)
at
org.apache.calcite.plan.hep.HepPlanner.lambda$executeProgram$0(HepPlanner.java:211)
at
com.google.common.collect.ImmutableList.forEach(ImmutableList.java:422)
at
org.apache.calcite.plan.hep.HepPlanner.executeProgram(HepPlanner.java:210)
at
org.apache.calcite.plan.hep.HepProgram$State.execute(HepProgram.java:118)
at
org.apache.calcite.plan.hep.HepPlanner.executeProgram(HepPlanner.java:205)
at
org.apache.calcite.plan.hep.HepPlanner.findBestExp(HepPlanner.java:191)
at
org.apache.shardingsphere.sqlfederation.compiler.statement.SQLStatementCompiler.rewrite(SQLStatementCompiler.java:66)
at
org.apache.shardingsphere.sqlfederation.compiler.statement.SQLStatementCompiler.compile(SQLStatementCompiler.java:58)
at
org.apache.shardingsphere.sqlfederation.compiler.statement.SQLStatementCompilerEngine.compile(SQLStatementCompilerEngine.java:45)
at
org.apache.shardingsphere.sqlfederation.compiler.SQLFederationCompilerEngine.compile(SQLFederationCompilerEngine.java:44)
at
org.apache.shardingsphere.sqlfederation.engine.SQLFederationEngine.compileQuery(SQLFederationEngine.java:182)
at
org.apache.shardingsphere.sqlfederation.engine.SQLFederationEngine.executeQuery(SQLFederationEngine.java:158)
at
org.apache.shardingsphere.proxy.backend.connector.DatabaseConnector.doExecuteFederation(DatabaseConnector.java:246)
at
org.apache.shardingsphere.proxy.backend.connector.DatabaseConnector.execute(DatabaseConnector.java:165)
at
org.apache.shardingsphere.proxy.backend.handler.data.impl.UnicastDatabaseBackendHandler.execute(UnicastDatabaseBackendHandler.java:62)
at
org.apache.shardingsphere.proxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.execute(MySQLComQueryPacketExecutor.java:99)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.doExecuteCommand(CommandExecutorTask.java:126)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:121)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:78)
at com.alibaba.ttl.TtlRunnable.run(TtlRunnable.java:60)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
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