Github user vdiravka commented on a diff in the pull request:
https://github.com/apache/drill/pull/549#discussion_r72142344
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/planner/sql/parser/CompoundIdentifierConverter.java
---
@@ -115,6 +119,18 @@ public SqlNode visitChild(
enableComplex = true;
}
}
+ if (expr.getKind() == SqlKind.SELECT) {
+ if (((SqlSelect) expr).getFrom() instanceof
DrillCompoundIdentifier) {
+ fullSchemasSet.add((DrillCompoundIdentifier) ((SqlSelect)
expr).getFrom());
+ } else if (((SqlSelect) expr).getFrom() instanceof SqlJoin) {
--- End diff --
You are right. I should add recursive checking of full-schema identifier of
every nested query.
Anyway it doesn't help now because when I ran the query with nested
subqueries with different schema-qualified tables I got an error from calcite.
I've already written about it in calcite dev list.
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