xiedeyantu commented on code in PR #4346:
URL: https://github.com/apache/calcite/pull/4346#discussion_r2067559445
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core/src/main/java/org/apache/calcite/rel/metadata/RelMdPredicates.java:
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@@ -218,8 +214,30 @@ public RelOptPredicateList getPredicates(Project project,
for (RexNode r : inputInfo.pulledUpPredicates) {
RexNode r2 = projectPredicate(rexBuilder, input, r, columnsMapped);
if (!r2.isAlwaysTrue()) {
- r2 = r2.accept(new RexPermuteInputsShuttle(m, input));
- projectPullUpPredicates.add(r2);
+ ImmutableBitSet fields = RelOptUtil.InputFinder.bits(r2);
+ // If r2 cannot find input (such as SubQuery),
+ // it will directly return without adjusting mapping.
+ if (fields.isEmpty()) {
+ projectPullUpPredicates.add(r2);
+ continue;
+ }
+ // Using Map<Integer, BitSet>, the result will be
Review Comment:
I updated the doc and removed the annotations. I tested locally that both
java8 and java17 were successfully and to see if ci can succeed.
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