Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/14132#discussion_r70300858
--- Diff:
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4 ---
@@ -347,6 +347,14 @@ querySpecification
windows?)
;
+hint
+ : '/*+' mapJoinHint '*/'
+ ;
+
+mapJoinHint
+ : MAPJOIN '(' broadcastedTables+=tableIdentifier (','
broadcastedTables+=tableIdentifier)* ')'
--- End diff --
Can we move the logic somewhere else that's not in the parser rule? It'd be
great if we don't need to modify the parser rule in order to support
"broadcast" or "broadcast join". Even moving it into the parser itself (that is
not parser rule could work).
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