Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/18086#discussion_r118832143
--- Diff:
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4 ---
@@ -371,7 +371,7 @@ querySpecification
(RECORDREADER recordReader=STRING)?
fromClause?
(WHERE where=booleanExpression)?)
- | ((kind=SELECT hint? setQuantifier? namedExpressionSeq fromClause?
+ | ((kind=SELECT (hints+=hint)* setQuantifier? namedExpressionSeq
fromClause?
--- End diff --
In Hive and Oracle, multiple hints are put in the same `/*+ */`.
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