LakeShen commented on code in PR #3393:
URL: https://github.com/apache/calcite/pull/3393#discussion_r1340868580
##########
core/src/main/java/org/apache/calcite/sql2rel/SqlToRelConverter.java:
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@@ -3801,13 +3806,17 @@ private static boolean all(SqlCall call) {
protected RelNode convertInsert(SqlInsert call) {
RelOptTable targetTable = getTargetTable(call);
+ callStack.push(call);
+
final RelDataType targetRowType =
validator().getValidatedNodeType(call);
assert targetRowType != null;
RelNode sourceRel =
convertQueryRecursive(call.getSource(), true, targetRowType).project();
RelNode massagedRel = convertColumnList(call, sourceRel);
+ callStack.pop();
Review Comment:
Why callStack only used in convertInsert,will the other convertXXX methods
use callStack?
Such as convertMerge method.
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