snuyanzin commented on code in PR #27794:
URL: https://github.com/apache/flink/pull/27794#discussion_r2964921458
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flink-table/flink-table-planner/src/main/java/org/apache/flink/table/planner/operations/converters/materializedtable/SqlCreateOrAlterMaterializedTableConverter.java:
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@@ -173,6 +178,13 @@ protected MergeContext getMergeContext(
SqlCreateOrAlterMaterializedTableConverter.this.getQueryResolvedSchema(
sqlCreateMaterializedTable, context);
+ @Override
+ public boolean hasSchemaDefinition() {
+ final SqlNodeList sqlNodeList =
sqlCreateMaterializedTable.getColumnList();
+ return !sqlNodeList.getList().isEmpty()
+ && sqlNodeList.getList().get(0) instanceof
SqlRegularColumn;
Review Comment:
this is not about columns for MT, this is about schema
If it is empty, it means no schema is explicitly specified
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