cloud-fan commented on code in PR #48091:
URL: https://github.com/apache/spark/pull/48091#discussion_r1766917843
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala:
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@@ -5854,7 +5854,20 @@ class AstBuilder extends DataTypeAstBuilder
windowClause = null,
relation = left,
isPipeOperatorSelect = true)
- }.get
+ }.getOrElse(Option(ctx.whereClause).map { c =>
+ // Add a table subquery boundary between the new filter and the input
plan if one does not
+ // already exist. This helps the analyzer behave as if we had added the
WHERE clause after a
+ // table subquery containing the input plan.
Review Comment:
ah, it also fixes a regression. We can add a test for `table t |> where
spark_catalog.default.t.x = 1`, which didn't work before this fix.
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