zzwqqq commented on code in PR #5288:
URL: https://github.com/apache/calcite/pull/5288#discussion_r4094436214
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core/src/main/java/org/apache/calcite/rel/metadata/RelMdTableReferences.java:
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@@ -159,11 +160,25 @@ public Set<RelTableRef> getTableReferences(TableScan rel,
RelMetadataQuery mq) {
* references.
*/
public @Nullable Set<RelTableRef> getTableReferences(SetOp rel,
RelMetadataQuery mq) {
+ return getTableReferences(rel.getInputs(), mq);
+ }
+
+ /**
+ * Table references from TableFunctionScan.
+ */
+ public @Nullable Set<RelTableRef> getTableReferences(TableFunctionScan rel,
+ RelMetadataQuery mq) {
+ return getTableReferences(rel.getInputs(), mq);
Review Comment:
Should we also handle a RexSubQuery inside rexCall of TableFunctionScan
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