beliefer commented on a change in pull request #25416: [SPARK-28330][SQL]
Support ANSI SQL: result offset clause in query expression
URL: https://github.com/apache/spark/pull/25416#discussion_r332897164
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File path:
sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4
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@@ -399,6 +399,7 @@ queryOrganization
(SORT BY sort+=sortItem (',' sort+=sortItem)*)?
windowClause?
(LIMIT (ALL | limit=expression))?
+ (OFFSET offset=expression)?
Review comment:
Yes, SQL standard defined the order for `LIMIT` and `OFFSET` clauses.
`LIMIT` at the front of `OFFSET`.
The behavior looks contrary to MySQL direction.
`MySQL` support `LIMIT 10, OFFSET 10`.
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