当mysql表字段修改之后,再用flink cdc接入,当使用到这个表的时候会提示字段不存在。 Exception in thread "main" org.apache.flink.table.api.ValidationException: SQL validation failed. From line 53, column 15 to line 53, column 20: Column 'rounds' not found in table 'prcrs' at org.apache.flink.table.planner.calcite.FlinkPlannerImpl.org$apache$flink$table$planner$calcite$FlinkPlannerImpl$$validate(FlinkPlannerImpl.scala:146) at org.apache.flink.table.planner.calcite.FlinkPlannerImpl.validate(FlinkPlannerImpl.scala:108) at org.apache.flink.table.planner.operations.SqlToOperationConverter.convert(SqlToOperationConverter.java:185) at org.apache.flink.table.planner.delegation.ParserImpl.parse(ParserImpl.java:78) at org.apache.flink.table.api.internal.TableEnvironmentImpl.sqlQuery(TableEnvironmentImpl.java:664) at com.gaotu.data.performance.flink.job.sql.RegularAnalysis.main(RegularAnalysis.java:234) Caused by: org.apache.calcite.runtime.CalciteContextException: From line 53, column 15 to line 53, column 20: Column 'rounds' not found in table 'prcrs' at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.apache.calcite.runtime.Resources$ExInstWithCause.ex(Resources.java:457) at org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:839) at org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:824) at org.apache.calcite.sql.validate.SqlValidatorImpl.newValidationError(SqlValidatorImpl.java:5089) at org.apache.calcite.sql.validate.DelegatingScope.fullyQualify(DelegatingScope.java:439) at org.apache.calcite.sql.validate.SqlValidatorImpl$Expander.visit(SqlValidatorImpl.java:5991) at org.apache.calcite.sql.validate.SqlValidatorImpl$Expander.visit(SqlValidatorImpl.java:5976) at org.apache.calcite.sql.SqlIdentifier.accept(SqlIdentifier.java:321) at org.apache.calcite.sql.util.SqlShuttle$CallCopyingArgHandler.visitChild(SqlShuttle.java:134) at org.apache.calcite.sql.util.SqlShuttle$CallCopyingArgHandler.visitChild(SqlShuttle.java:101) at org.apache.calcite.sql.SqlOperator.acceptCall(SqlOperator.java:884) at org.apache.calcite.sql.validate.SqlValidatorImpl$Expander.visitScoped(SqlValidatorImpl.java:6009) at org.apache.calcite.sql.validate.SqlScopedShuttle.visit(SqlScopedShuttle.java:50) at org.apache.calcite.sql.validate.SqlScopedShuttle.visit(SqlScopedShuttle.java:33) at org.apache.calcite.sql.SqlCall.accept(SqlCall.java:139) at org.apache.calcite.sql.util.SqlShuttle$CallCopyingArgHandler.visitChild(SqlShuttle.java:134) at org.apache.calcite.sql.util.SqlShuttle$CallCopyingArgHandler.visitChild(SqlShuttle.java:101) at org.apache.calcite.sql.SqlOperator.acceptCall(SqlOperator.java:884) at org.apache.calcite.sql.validate.SqlValidatorImpl$Expander.visitScoped(SqlValidatorImpl.java:6009) at org.apache.calcite.sql.validate.SqlScopedShuttle.visit(SqlScopedShuttle.java:50) at org.apache.calcite.sql.validate.SqlScopedShuttle.visit(SqlScopedShuttle.java:33) at org.apache.calcite.sql.SqlCall.accept(SqlCall.java:139) at org.apache.calcite.sql.validate.SqlValidatorImpl.expand(SqlValidatorImpl.java:5583) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateJoin(SqlValidatorImpl.java:3312) at org.apache.flink.table.planner.calcite.FlinkCalciteSqlValidator.validateJoin(FlinkCalciteSqlValidator.java:86) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateFrom(SqlValidatorImpl.java:3247) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateJoin(SqlValidatorImpl.java:3302) at org.apache.flink.table.planner.calcite.FlinkCalciteSqlValidator.validateJoin(FlinkCalciteSqlValidator.java:86) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateFrom(SqlValidatorImpl.java:3247) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelect(SqlValidatorImpl.java:3510) at org.apache.calcite.sql.validate.SelectNamespace.validateImpl(SelectNamespace.java:60) at org.apache.calcite.sql.validate.AbstractNamespace.validate(AbstractNamespace.java:84) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateNamespace(SqlValidatorImpl.java:1110) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateQuery(SqlValidatorImpl.java:1084) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateFrom(SqlValidatorImpl.java:3256) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateFrom(SqlValidatorImpl.java:3238) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelect(SqlValidatorImpl.java:3510) at org.apache.calcite.sql.validate.SelectNamespace.validateImpl(SelectNamespace.java:60) at org.apache.calcite.sql.validate.AbstractNamespace.validate(AbstractNamespace.java:84) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateNamespace(SqlValidatorImpl.java:1110) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateQuery(SqlValidatorImpl.java:1084) at org.apache.calcite.sql.SqlSelect.validate(SqlSelect.java:232) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateScopedExpression(SqlValidatorImpl.java:1059) at org.apache.calcite.sql.validate.SqlValidatorImpl.validate(SqlValidatorImpl.java:766) at org.apache.flink.table.planner.calcite.FlinkPlannerImpl.org$apache$flink$table$planner$calcite$FlinkPlannerImpl$$validate(FlinkPlannerImpl.scala:141) ... 5 more Caused by: org.apache.calcite.sql.validate.SqlValidatorException: Column 'rounds' not found in table 'prcrs' at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:423) at org.apache.calcite.runtime.Resources$ExInstWithCause.ex(Resources.java:457) at org.apache.calcite.runtime.Resources$ExInst.ex(Resources.java:550) ... 49 more*来自志愿者整理的flink邮件归档
Flink SQL 是结构化的 query 语言,目前做不到 schema 自动变更。 所以如果你的 mysql 源的 schema 变更了,那么需要重新定义 Flink DDL,然后重启 Flink SQL 的作业。*来自志愿者整理的flink邮件归档
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