zxc321zxchb opened a new issue, #24579:
URL: https://github.com/apache/shardingsphere/issues/24579
[ERROR] 2023-03-13 15:51:10.147 [ShardingSphere-Command-4]
o.a.s.p.f.c.CommandExecutorTask - Exception occur:
java.lang.NullPointerException: null
at java.util.Objects.requireNonNull(Objects.java:203)
at java.util.Optional.<init>(Optional.java:96)
at java.util.Optional.of(Optional.java:108)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.findTableName(SQLFederationResultSetMetaData.java:180)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.getTableName(SQLFederationResultSetMetaData.java:137)
at
org.apache.shardingsphere.infra.executor.sql.execute.result.query.impl.driver.jdbc.metadata.JDBCQueryResultMetaData.getTableName(JDBCQueryResultMetaData.java:42)
at
org.apache.shardingsphere.proxy.backend.response.header.query.impl.MySQLQueryHeaderBuilder.build(MySQLQueryHeaderBuilder.java:40)
at
org.apache.shardingsphere.proxy.backend.response.header.query.QueryHeaderBuilderEngine.build(QueryHeaderBuilderEngine.java:55)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.processExecuteFederation(DatabaseCommunicationEngine.java:226)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.execute(DatabaseCommunicationEngine.java:168)
at
org.apache.shardingsphere.proxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.execute(MySQLComQueryPacketExecutor.java:92)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:110)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:77)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
[ERROR] 2023-03-13 15:51:10.346 [ShardingSphere-Command-4]
o.a.s.p.f.c.CommandExecutorTask - Exception occur:
java.lang.NullPointerException: null
at java.util.Objects.requireNonNull(Objects.java:203)
at java.util.Optional.<init>(Optional.java:96)
at java.util.Optional.of(Optional.java:108)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.findTableName(SQLFederationResultSetMetaData.java:180)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.getTableName(SQLFederationResultSetMetaData.java:137)
at
org.apache.shardingsphere.infra.executor.sql.execute.result.query.impl.driver.jdbc.metadata.JDBCQueryResultMetaData.getTableName(JDBCQueryResultMetaData.java:42)
at
org.apache.shardingsphere.proxy.backend.response.header.query.impl.MySQLQueryHeaderBuilder.build(MySQLQueryHeaderBuilder.java:40)
at
org.apache.shardingsphere.proxy.backend.response.header.query.QueryHeaderBuilderEngine.build(QueryHeaderBuilderEngine.java:55)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.processExecuteFederation(DatabaseCommunicationEngine.java:226)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.execute(DatabaseCommunicationEngine.java:168)
at
org.apache.shardingsphere.proxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.execute(MySQLComQueryPacketExecutor.java:92)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:110)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:77)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
[ERROR] 2023-03-13 15:51:10.539 [ShardingSphere-Command-4]
o.a.s.p.f.c.CommandExecutorTask - Exception occur:
java.lang.NullPointerException: null
at java.util.Objects.requireNonNull(Objects.java:203)
at java.util.Optional.<init>(Optional.java:96)
at java.util.Optional.of(Optional.java:108)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.findTableName(SQLFederationResultSetMetaData.java:180)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.getTableName(SQLFederationResultSetMetaData.java:137)
at
org.apache.shardingsphere.infra.executor.sql.execute.result.query.impl.driver.jdbc.metadata.JDBCQueryResultMetaData.getTableName(JDBCQueryResultMetaData.java:42)
at
org.apache.shardingsphere.proxy.backend.response.header.query.impl.MySQLQueryHeaderBuilder.build(MySQLQueryHeaderBuilder.java:40)
at
org.apache.shardingsphere.proxy.backend.response.header.query.QueryHeaderBuilderEngine.build(QueryHeaderBuilderEngine.java:55)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.processExecuteFederation(DatabaseCommunicationEngine.java:226)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.execute(DatabaseCommunicationEngine.java:168)
at
org.apache.shardingsphere.proxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.execute(MySQLComQueryPacketExecutor.java:92)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:110)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:77)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
[ERROR] 2023-03-13 15:51:10.775 [ShardingSphere-Command-4]
o.a.s.p.f.c.CommandExecutorTask - Exception occur:
java.lang.NullPointerException: null
at java.util.Objects.requireNonNull(Objects.java:203)
at java.util.Optional.<init>(Optional.java:96)
at java.util.Optional.of(Optional.java:108)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.findTableName(SQLFederationResultSetMetaData.java:180)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.getTableName(SQLFederationResultSetMetaData.java:137)
at
org.apache.shardingsphere.infra.executor.sql.execute.result.query.impl.driver.jdbc.metadata.JDBCQueryResultMetaData.getTableName(JDBCQueryResultMetaData.java:42)
at
org.apache.shardingsphere.proxy.backend.response.header.query.impl.MySQLQueryHeaderBuilder.build(MySQLQueryHeaderBuilder.java:40)
at
org.apache.shardingsphere.proxy.backend.response.header.query.QueryHeaderBuilderEngine.build(QueryHeaderBuilderEngine.java:55)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.processExecuteFederation(DatabaseCommunicationEngine.java:226)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.execute(DatabaseCommunicationEngine.java:168)
at
org.apache.shardingsphere.proxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.execute(MySQLComQueryPacketExecutor.java:92)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:110)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:77)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
[ERROR] 2023-03-13 15:51:10.979 [ShardingSphere-Command-4]
o.a.s.p.f.c.CommandExecutorTask - Exception occur:
java.lang.NullPointerException: null
at java.util.Objects.requireNonNull(Objects.java:203)
at java.util.Optional.<init>(Optional.java:96)
at java.util.Optional.of(Optional.java:108)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.findTableName(SQLFederationResultSetMetaData.java:180)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.getTableName(SQLFederationResultSetMetaData.java:137)
at
org.apache.shardingsphere.infra.executor.sql.execute.result.query.impl.driver.jdbc.metadata.JDBCQueryResultMetaData.getTableName(JDBCQueryResultMetaData.java:42)
at
org.apache.shardingsphere.proxy.backend.response.header.query.impl.MySQLQueryHeaderBuilder.build(MySQLQueryHeaderBuilder.java:40)
at
org.apache.shardingsphere.proxy.backend.response.header.query.QueryHeaderBuilderEngine.build(QueryHeaderBuilderEngine.java:55)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.processExecuteFederation(DatabaseCommunicationEngine.java:226)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.execute(DatabaseCommunicationEngine.java:168)
at
org.apache.shardingsphere.proxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.execute(MySQLComQueryPacketExecutor.java:92)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:110)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:77)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
[ERROR] 2023-03-13 15:51:11.171 [ShardingSphere-Command-4]
o.a.s.p.f.c.CommandExecutorTask - Exception occur:
java.lang.NullPointerException: null
at java.util.Objects.requireNonNull(Objects.java:203)
at java.util.Optional.<init>(Optional.java:96)
at java.util.Optional.of(Optional.java:108)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.findTableName(SQLFederationResultSetMetaData.java:180)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.getTableName(SQLFederationResultSetMetaData.java:137)
at
org.apache.shardingsphere.infra.executor.sql.execute.result.query.impl.driver.jdbc.metadata.JDBCQueryResultMetaData.getTableName(JDBCQueryResultMetaData.java:42)
at
org.apache.shardingsphere.proxy.backend.response.header.query.impl.MySQLQueryHeaderBuilder.build(MySQLQueryHeaderBuilder.java:40)
at
org.apache.shardingsphere.proxy.backend.response.header.query.QueryHeaderBuilderEngine.build(QueryHeaderBuilderEngine.java:55)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.processExecuteFederation(DatabaseCommunicationEngine.java:226)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.execute(DatabaseCommunicationEngine.java:168)
at
org.apache.shardingsphere.proxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.execute(MySQLComQueryPacketExecutor.java:92)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:110)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:77)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
[ERROR] 2023-03-13 15:51:11.373 [ShardingSphere-Command-4]
o.a.s.p.f.c.CommandExecutorTask - Exception occur:
java.lang.NullPointerException: null
at java.util.Objects.requireNonNull(Objects.java:203)
at java.util.Optional.<init>(Optional.java:96)
at java.util.Optional.of(Optional.java:108)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.findTableName(SQLFederationResultSetMetaData.java:180)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.getTableName(SQLFederationResultSetMetaData.java:137)
at
org.apache.shardingsphere.infra.executor.sql.execute.result.query.impl.driver.jdbc.metadata.JDBCQueryResultMetaData.getTableName(JDBCQueryResultMetaData.java:42)
at
org.apache.shardingsphere.proxy.backend.response.header.query.impl.MySQLQueryHeaderBuilder.build(MySQLQueryHeaderBuilder.java:40)
at
org.apache.shardingsphere.proxy.backend.response.header.query.QueryHeaderBuilderEngine.build(QueryHeaderBuilderEngine.java:55)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.processExecuteFederation(DatabaseCommunicationEngine.java:226)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.execute(DatabaseCommunicationEngine.java:168)
at
org.apache.shardingsphere.proxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.execute(MySQLComQueryPacketExecutor.java:92)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:110)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:77)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
[ERROR] 2023-03-13 15:51:11.622 [ShardingSphere-Command-4]
o.a.s.p.f.c.CommandExecutorTask - Exception occur:
java.lang.NullPointerException: null
at java.util.Objects.requireNonNull(Objects.java:203)
at java.util.Optional.<init>(Optional.java:96)
at java.util.Optional.of(Optional.java:108)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.findTableName(SQLFederationResultSetMetaData.java:180)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.getTableName(SQLFederationResultSetMetaData.java:137)
at
org.apache.shardingsphere.infra.executor.sql.execute.result.query.impl.driver.jdbc.metadata.JDBCQueryResultMetaData.getTableName(JDBCQueryResultMetaData.java:42)
at
org.apache.shardingsphere.proxy.backend.response.header.query.impl.MySQLQueryHeaderBuilder.build(MySQLQueryHeaderBuilder.java:40)
at
org.apache.shardingsphere.proxy.backend.response.header.query.QueryHeaderBuilderEngine.build(QueryHeaderBuilderEngine.java:55)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.processExecuteFederation(DatabaseCommunicationEngine.java:226)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.execute(DatabaseCommunicationEngine.java:168)
at
org.apache.shardingsphere.proxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.execute(MySQLComQueryPacketExecutor.java:92)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:110)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:77)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
[ERROR] 2023-03-13 15:51:11.934 [ShardingSphere-Command-4]
o.a.s.p.f.c.CommandExecutorTask - Exception occur:
java.lang.NullPointerException: null
at java.util.Objects.requireNonNull(Objects.java:203)
at java.util.Optional.<init>(Optional.java:96)
at java.util.Optional.of(Optional.java:108)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.findTableName(SQLFederationResultSetMetaData.java:180)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.getTableName(SQLFederationResultSetMetaData.java:137)
at
org.apache.shardingsphere.infra.executor.sql.execute.result.query.impl.driver.jdbc.metadata.JDBCQueryResultMetaData.getTableName(JDBCQueryResultMetaData.java:42)
at
org.apache.shardingsphere.proxy.backend.response.header.query.impl.MySQLQueryHeaderBuilder.build(MySQLQueryHeaderBuilder.java:40)
at
org.apache.shardingsphere.proxy.backend.response.header.query.QueryHeaderBuilderEngine.build(QueryHeaderBuilderEngine.java:55)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.processExecuteFederation(DatabaseCommunicationEngine.java:226)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.execute(DatabaseCommunicationEngine.java:168)
at
org.apache.shardingsphere.proxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.execute(MySQLComQueryPacketExecutor.java:92)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:110)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:77)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
[ERROR] 2023-03-13 15:51:12.177 [ShardingSphere-Command-4]
o.a.s.p.f.c.CommandExecutorTask - Exception occur:
java.lang.NullPointerException: null
at java.util.Objects.requireNonNull(Objects.java:203)
at java.util.Optional.<init>(Optional.java:96)
at java.util.Optional.of(Optional.java:108)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.findTableName(SQLFederationResultSetMetaData.java:180)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.getTableName(SQLFederationResultSetMetaData.java:137)
at
org.apache.shardingsphere.infra.executor.sql.execute.result.query.impl.driver.jdbc.metadata.JDBCQueryResultMetaData.getTableName(JDBCQueryResultMetaData.java:42)
at
org.apache.shardingsphere.proxy.backend.response.header.query.impl.MySQLQueryHeaderBuilder.build(MySQLQueryHeaderBuilder.java:40)
at
org.apache.shardingsphere.proxy.backend.response.header.query.QueryHeaderBuilderEngine.build(QueryHeaderBuilderEngine.java:55)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.processExecuteFederation(DatabaseCommunicationEngine.java:226)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.execute(DatabaseCommunicationEngine.java:168)
at
org.apache.shardingsphere.proxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.execute(MySQLComQueryPacketExecutor.java:92)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:110)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:77)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
[ERROR] 2023-03-13 15:51:12.366 [ShardingSphere-Command-4]
o.a.s.p.f.c.CommandExecutorTask - Exception occur:
java.lang.NullPointerException: null
at java.util.Objects.requireNonNull(Objects.java:203)
at java.util.Optional.<init>(Optional.java:96)
at java.util.Optional.of(Optional.java:108)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.findTableName(SQLFederationResultSetMetaData.java:180)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.getTableName(SQLFederationResultSetMetaData.java:137)
at
org.apache.shardingsphere.infra.executor.sql.execute.result.query.impl.driver.jdbc.metadata.JDBCQueryResultMetaData.getTableName(JDBCQueryResultMetaData.java:42)
at
org.apache.shardingsphere.proxy.backend.response.header.query.impl.MySQLQueryHeaderBuilder.build(MySQLQueryHeaderBuilder.java:40)
at
org.apache.shardingsphere.proxy.backend.response.header.query.QueryHeaderBuilderEngine.build(QueryHeaderBuilderEngine.java:55)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.processExecuteFederation(DatabaseCommunicationEngine.java:226)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.execute(DatabaseCommunicationEngine.java:168)
at
org.apache.shardingsphere.proxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.execute(MySQLComQueryPacketExecutor.java:92)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:110)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:77)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
[ERROR] 2023-03-13 15:51:12.546 [ShardingSphere-Command-4]
o.a.s.p.f.c.CommandExecutorTask - Exception occur:
java.lang.NullPointerException: null
at java.util.Objects.requireNonNull(Objects.java:203)
at java.util.Optional.<init>(Optional.java:96)
at java.util.Optional.of(Optional.java:108)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.findTableName(SQLFederationResultSetMetaData.java:180)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.getTableName(SQLFederationResultSetMetaData.java:137)
at
org.apache.shardingsphere.infra.executor.sql.execute.result.query.impl.driver.jdbc.metadata.JDBCQueryResultMetaData.getTableName(JDBCQueryResultMetaData.java:42)
at
org.apache.shardingsphere.proxy.backend.response.header.query.impl.MySQLQueryHeaderBuilder.build(MySQLQueryHeaderBuilder.java:40)
at
org.apache.shardingsphere.proxy.backend.response.header.query.QueryHeaderBuilderEngine.build(QueryHeaderBuilderEngine.java:55)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.processExecuteFederation(DatabaseCommunicationEngine.java:226)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.execute(DatabaseCommunicationEngine.java:168)
at
org.apache.shardingsphere.proxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.execute(MySQLComQueryPacketExecutor.java:92)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:110)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:77)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
[ERROR] 2023-03-13 15:51:12.785 [ShardingSphere-Command-4]
o.a.s.p.f.c.CommandExecutorTask - Exception occur:
java.lang.NullPointerException: null
at java.util.Objects.requireNonNull(Objects.java:203)
at java.util.Optional.<init>(Optional.java:96)
at java.util.Optional.of(Optional.java:108)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.findTableName(SQLFederationResultSetMetaData.java:180)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.getTableName(SQLFederationResultSetMetaData.java:137)
at
org.apache.shardingsphere.infra.executor.sql.execute.result.query.impl.driver.jdbc.metadata.JDBCQueryResultMetaData.getTableName(JDBCQueryResultMetaData.java:42)
at
org.apache.shardingsphere.proxy.backend.response.header.query.impl.MySQLQueryHeaderBuilder.build(MySQLQueryHeaderBuilder.java:40)
at
org.apache.shardingsphere.proxy.backend.response.header.query.QueryHeaderBuilderEngine.build(QueryHeaderBuilderEngine.java:55)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.processExecuteFederation(DatabaseCommunicationEngine.java:226)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.execute(DatabaseCommunicationEngine.java:168)
at
org.apache.shardingsphere.proxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.execute(MySQLComQueryPacketExecutor.java:92)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:110)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:77)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
[ERROR] 2023-03-13 15:51:12.961 [ShardingSphere-Command-4]
o.a.s.p.f.c.CommandExecutorTask - Exception occur:
java.lang.NullPointerException: null
at java.util.Objects.requireNonNull(Objects.java:203)
at java.util.Optional.<init>(Optional.java:96)
at java.util.Optional.of(Optional.java:108)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.findTableName(SQLFederationResultSetMetaData.java:180)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.getTableName(SQLFederationResultSetMetaData.java:137)
at
org.apache.shardingsphere.infra.executor.sql.execute.result.query.impl.driver.jdbc.metadata.JDBCQueryResultMetaData.getTableName(JDBCQueryResultMetaData.java:42)
at
org.apache.shardingsphere.proxy.backend.response.header.query.impl.MySQLQueryHeaderBuilder.build(MySQLQueryHeaderBuilder.java:40)
at
org.apache.shardingsphere.proxy.backend.response.header.query.QueryHeaderBuilderEngine.build(QueryHeaderBuilderEngine.java:55)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.processExecuteFederation(DatabaseCommunicationEngine.java:226)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.execute(DatabaseCommunicationEngine.java:168)
at
org.apache.shardingsphere.proxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.execute(MySQLComQueryPacketExecutor.java:92)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:110)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:77)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:750)
[ERROR] 2023-03-13 15:51:13.174 [ShardingSphere-Command-4]
o.a.s.p.f.c.CommandExecutorTask - Exception occur:
java.lang.NullPointerException: null
at java.util.Objects.requireNonNull(Objects.java:203)
at java.util.Optional.<init>(Optional.java:96)
at java.util.Optional.of(Optional.java:108)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.findTableName(SQLFederationResultSetMetaData.java:180)
at
org.apache.shardingsphere.sqlfederation.advanced.resultset.SQLFederationResultSetMetaData.getTableName(SQLFederationResultSetMetaData.java:137)
at
org.apache.shardingsphere.infra.executor.sql.execute.result.query.impl.driver.jdbc.metadata.JDBCQueryResultMetaData.getTableName(JDBCQueryResultMetaData.java:42)
at
org.apache.shardingsphere.proxy.backend.response.header.query.impl.MySQLQueryHeaderBuilder.build(MySQLQueryHeaderBuilder.java:40)
at
org.apache.shardingsphere.proxy.backend.response.header.query.QueryHeaderBuilderEngine.build(QueryHeaderBuilderEngine.java:55)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.processExecuteFederation(DatabaseCommunicationEngine.java:226)
at
org.apache.shardingsphere.proxy.backend.communication.DatabaseCommunicationEngine.execute(DatabaseCommunicationEngine.java:168)
at
org.apache.shardingsphere.proxy.frontend.mysql.command.query.text.query.MySQLComQueryPacketExecutor.execute(MySQLComQueryPacketExecutor.java:92)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.executeCommand(CommandExecutorTask.java:110)
at
org.apache.shardingsphere.proxy.frontend.command.CommandExecutorTask.run(CommandExecutorTask.java:77)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
**Here is the key method**
org.apache.shardingsphere.sqlfederation.advanced.resultset
private Optional<String> findTableName(final int column) {
Projection projection =
selectStatementContext.getProjectionsContext().getExpandProjections().get(column
- 1);
if (projection instanceof ColumnProjection) {
Map<String, String> tableNamesByColumnProjection =
selectStatementContext.getTablesContext().findTableNamesByColumnProjection(Collections.singletonList((ColumnProjection)
projection), schema);
//Do you want to replace "of" with "of Nullable"
return
Optional.of(tableNamesByColumnProjection.get(projection.getExpression()));
}
return Optional.empty();
}
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