Description
We substitute logical plan with CTE definitions in the analyzer rule CTESubstitution. A CTE definition can be used in the logical plan for multiple times, and its analyzed logical plan should be the same. We should not analyze CTE definitions multiple times when they are reused in the query.
By analyzing CTE definitions before substitution, we can support defining CTE in subquery.
Attachments
Issue Links
- is related to
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SPARK-19799 Support WITH clause in subqueries
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- Resolved
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- links to
