Github user maryannxue commented on a diff in the pull request:
https://github.com/apache/spark/pull/21324#discussion_r188080851
--- Diff:
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4 ---
@@ -398,7 +398,7 @@ hintStatement
;
fromClause
- : FROM relation (',' relation)* (pivotClause | lateralView*)?
+ : FROM relation (',' relation)* lateralView* pivotClause?
--- End diff --
FYI, I am doing this based on the ORACLE syntax definition. This "no PIVOT
and LATERAL together" thing is listed as a restriction rather than reinforced
in the parser rules in ORACLE. That said, I believe I should have done this in
my first check-in.
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