chunweilei commented on a change in pull request #1917:
URL: https://github.com/apache/calcite/pull/1917#discussion_r411110372
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File path: core/src/main/java/org/apache/calcite/rel/rules/PushProjector.java
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@@ -216,9 +218,14 @@ public PushProjector(
origProjExprs = origProj.getProjects();
}
- childFields = childRel.getRowType().getFieldList();
+ if (childRel instanceof Join) {
+ Join join = (Join) childRel;
+ childFields =
Lists.newArrayList(join.getLeft().getRowType().getFieldList());
+ childFields.addAll(join.getRight().getRowType().getFieldList());
+ } else {
+ childFields = childRel.getRowType().getFieldList();
+ }
nChildFields = childFields.size();
Review comment:
Thanks for your explanation.
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