maropu commented on a change in pull request #32303:
URL: https://github.com/apache/spark/pull/32303#discussion_r619335548
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File path:
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
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@@ -588,7 +588,7 @@ hintStatement
;
fromClause
- : FROM relation (',' relation)* lateralView* pivotClause?
+ : FROM relation (',' lateralClause)* (',' relation)* lateralView*
pivotClause?
Review comment:
Yea, it seems PosgreSQL accepts simple cases without outer refs.
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