Github user hvanhovell commented on a diff in the pull request: https://github.com/apache/spark/pull/14132#discussion_r70222526 --- Diff: sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4 --- @@ -945,8 +955,12 @@ SIMPLE_COMMENT : '--' ~[\r\n]* '\r'? '\n'? -> channel(HIDDEN) ; +BRACKETED_EMPTY_COMMENT --- End diff -- Do we need this because the BRACKETED_COMMENT rule is now expecting at least one character?
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