SQL validation failed.Column ‘content‘ not found in any table

代码如下:

 

Exception in thread "main" org.apache.flink.table.api.ValidationException: SQL validation failed. From line 1, column 8 to line 1, column 14: Column 'content' not found in any table

完整报错如下:

Exception in thread "main" org.apache.flink.table.api.ValidationException: SQL validation failed. From line 1, column 8 to line 1, column 14: Column 'content' not found in any table at org.apache.flink.table.calcite.FlinkPlannerImpl.validateInternal(FlinkPlannerImpl.scala:144) at org.apache.flink.table.calcite.FlinkPlannerImpl.validate(FlinkPlannerImpl.scala:106) at org.apache.flink.table.sqlexec.SqlToOperationConverter.convert(SqlToOperationConverter.java:152) at org.apache.flink.table.planner.ParserImpl.parse(ParserImpl.java:68) at org.apache.flink.table.api.internal.TableEnvImpl.sqlQuery(TableEnvImpl.scala:566) at UDF.main(UDF.java:42) Caused by: org.apache.calcite.runtime.CalciteContextException: From line 1, column 8 to line 1, column 14: Column 'content' not found in any table 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$ExInstWithCause.ex(Resources.java:457) at org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:839) at org.apache.calcite.sql.SqlUtil.newContextException(SqlUtil.java:824) at org.apache.calcite.sql.validate.SqlValidatorImpl.newValidationError(SqlValidatorImpl.java:5089) at org.apache.calcite.sql.validate.DelegatingScope.fullyQualify(DelegatingScope.java:259) at org.apache.calcite.sql.validate.SqlValidatorImpl$Expander.visit(SqlValidatorImpl.java:5991) at org.apache.calcite.sql.validate.SqlValidatorImpl$SelectExpander.visit(SqlValidatorImpl.java:6154) at org.apache.calcite.sql.validate.SqlValidatorImpl$SelectExpander.visit(SqlValidatorImpl.java:6140) at org.apache.calcite.sql.SqlIdentifier.accept(SqlIdentifier.java:321) at org.apache.calcite.sql.validate.SqlValidatorImpl.expandSelectExpr(SqlValidatorImpl.java:5574) at org.apache.calcite.sql.validate.SqlValidatorImpl.expandSelectItem(SqlValidatorImpl.java:452) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelectList(SqlValidatorImpl.java:4255) at org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelect(SqlValidatorImpl.java:3523) 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.calcite.FlinkPlannerImpl.validateInternal(FlinkPlannerImpl.scala:139) ... 5 more Caused by: org.apache.calcite.sql.validate.SqlValidatorException: Column 'content' not found in any table 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) ... 25 more

原因:

FROM后面少了空格

解决方案:

Table result2 = tableEnv.sqlQuery("SELECT content,HASHCODE(content) FROM"+tableA);

改成:

Table result2 = tableEnv.sqlQuery("SELECT content,HASHCODE(content) FROM "+tableA);