【Flink】报错 java.lang.StackOverflowError

错误描述
报错信息：java.lang.StackOverflowError at java.util.HashMap.hash

code:[30017], brief info:[get app plan failed], context info:[detail:[java.lang.StackOverflowError
at java.util.HashMap.hash(HashMap.java:338)
at java.util.HashMap.get(HashMap.java:556)
at GeneratedMetadataHandler_RowCount.getRowCount(Unknown Source)
at org.apache.calcite.rel.metadata.RelMetadataQuery.getRowCount(RelMetadataQuery.java:236)
at org.apache.calcite.rel.metadata.RelMdUtil.estimateFilteredRows(RelMdUtil.java:718)
at org.apache.calcite.rel.metadata.RelMdRowCount.getRowCount(RelMdRowCount.java:123)
at GeneratedMetadataHandlerRowCount.getRowCount$(Unknown Source)
at GeneratedMetadataHandler_RowCount.getRowCount(Unknown Source)
at org.apache.calcite.rel.metadata.RelMetadataQuery.getRowCount(RelMetadataQuery.java:236)
at org.apache.calcite.rel.metadata.RelMdRowCount.getRowCount(RelMdRowCount.java:71)
at GeneratedMetadataHandlerRowCount.getRowCount$(Unknown Source)
at GeneratedMetadataHandler_RowCount.getRowCount(Unknown Source)
at org.apache.calcite.rel.metadata.RelMetadataQuery.getRowCount(RelMetadataQuery.java:236)
at org.apache.calcite.rel.metadata.RelMdRowCount.getRowCount(RelMdRowCount.java:132)
at GeneratedMetadataHandlerRowCount.getRowCount$(Unknown Source)
at GeneratedMetadataHandler_RowCount.getRowCount(Unknown Source)
at org.apache.calcite.rel.metadata.RelMetadataQuery.getRowCount(RelMetadataQuery.java:236)
at org.apache.calcite.rel.metadata.RelMdRowCount.getRowCount(RelMdRowCount.java:71)
at GeneratedMetadataHandlerRowCount.getRowCount$(Unknown Source)
at GeneratedMetadataHandler_RowCount.getRowCount(Unknown Source)
at org.apache.calcite.rel.metadata.RelMetadataQuery.getRowCount(RelMetadataQuery.java:236)
错误原因
Flink SQL语句中多次使用的UNION ALL会导致堆栈溢出。