ehds commented on code in PR #5298:
URL: https://github.com/apache/calcite/pull/5298#discussion_r4140660843
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core/src/main/java/org/apache/calcite/rel/metadata/RelMdTableReferences.java:
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@@ -270,4 +277,29 @@ public Set<RelTableRef> getTableReferences(TableScan rel,
RelMetadataQuery mq) {
return mq.getTableReferences(rel.getInput());
}
+ /** Table references from Snapshot. */
+ public @Nullable Set<RelTableRef> getTableReferences(Snapshot rel,
RelMetadataQuery mq) {
+ return mq.getTableReferences(rel.getInput());
Review Comment:
Yes, the period expression should also be inspected. For example, [MariaDB
allows a sub-query here](https://onecompiler.com/mariadb/454rjfxva). I've
updated the handler accordingly.
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