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遇到问题如下
Exception in thread "main" org.apache.flink.table.api.ValidationException: SQL validation failed. From line 1, column 15 to line 1, column 17: Object 'aaa' not found
at org.apache.flink.table.planner.calcite.FlinkPlannerImpl.orgat org.apache.flink.table.planner.calcite.FlinkPlannerImpl.org$apache$flink$table$planner$calcite$FlinkPlannerImpl$$validate(FlinkPlannerImpl.scala:156)
at org.apache.flink.table.planner.calcite.FlinkPlannerImpl.validate(FlinkPlannerImpl.scala:107)
at org.apache.flink.table.planner.operations.SqlToOperationConverter.convert(SqlToOperationConverter.java:205)
at org.apache.flink.table.planner.delegation.ParserImpl.parse(ParserImpl.java:101)
at org.apache.flink.table.api.internal.TableEnvironmentImpl.sqlQuery(TableEnvironmentImpl.java:704)
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