Github user dilipbiswal commented on a diff in the pull request:
https://github.com/apache/spark/pull/21941#discussion_r206969310
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala ---
@@ -1451,6 +1451,15 @@ object SQLConf {
.intConf
.checkValues((1 to 9).toSet + Deflater.DEFAULT_COMPRESSION)
.createWithDefault(Deflater.DEFAULT_COMPRESSION)
+
+ val SETOPS_PRECEDENCE_ENFORCED =
+ buildConf("spark.sql.setops.precedence.enforced")
--- End diff --
@gatorsmile A couple of alternatives i had considered :-). FYI.
`spark.sql.set.operators.precedence.enforced`
`spark.sql.set.operators.standard.compliance`
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