danny0405 commented on a change in pull request #1587: [CALCITE-3272] Support
TUMBLE as Table Valued Function including an enumerable implementation,
stream.iq and DESCRIPTOR
URL: https://github.com/apache/calcite/pull/1587#discussion_r358026702
##########
File path: core/src/main/java/org/apache/calcite/sql2rel/SqlToRelConverter.java
##########
@@ -2455,7 +2455,13 @@ protected void convertCollectionTable(
}
RexNode rexCall = bb.convertExpression(call);
- final List<RelNode> inputs = bb.retrieveCursors();
+ List<RelNode> inputs = new ArrayList<>();
+
+ if (rexCall.getKind() == SqlKind.TUMBLE) {
Review comment:
In order to hack into this method, we may match the `TUMBLE` table value
function just like lateral table [1]
[1]
https://github.com/apache/calcite/blob/b93ec5a9edb7459696385e6adad67b92b6d406d7/core/src/main/java/org/apache/calcite/sql2rel/SqlToRelConverter.java#L2199
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