zstan commented on code in PR #3335:
URL: https://github.com/apache/ignite-3/pull/3335#discussion_r1525873634
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modules/sql-engine/src/main/java/org/apache/ignite/internal/sql/engine/prepare/pruning/PartitionPruningMetadataExtractor.java:
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@@ -138,6 +152,177 @@ public IgniteRel visit(IgniteTableScan rel) {
return rel;
}
+ private static class ModifyNodeShuttle extends IgniteRelShuttle {
+ List<RexNode> projections = null;
+ List<List<RexNode>> expressions = null;
+ boolean unionRaised = false;
+
+ /** {@inheritDoc} */
+ @Override
+ public IgniteRel visit(IgniteProject rel) {
+ if (!unionRaised) {
+ // projection before union
+ assert projections == null;
+ // unexpected branch
+ if (projections != null) {
+ throw Util.FoundOne.NULL;
+ }
+ projections = rel.getProjects();
+ } else {
+ // projections after union
+ if (expressions == null) {
+ expressions = new ArrayList<>();
+ }
+ expressions.add(rel.getProjects());
Review Comment:
i append 1 level resolver, i think it would be enough, if (for some reasons)
no - seems we need to implement logic for input resolver like used in rules.
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