[WIP][SPARK-50982][SQL] Support more SQL/DataFrame read path functionality in single-pass Analyzer #49658
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Thanks @mihailotim-db and @mihailoale-db for working on this! |
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Thanks @gotocoding-DB for UNIONs! |
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What changes were proposed in this pull request?
Support more SQL/DataFrame read path functionality in single-pass Analyzer:
Also, remove
TracksResolvedNodes, because it's based on comparing object addresses, which doesn't always make sense in Catalyst, because Catalyst reuses objects (e.g. literals or local/global limit expression trees).Why are the changes needed?
To replace fixed-point Analyzer in Spark with a single-pass one.
Does this PR introduce any user-facing change?
No, single-pass Analyzer is still disabled.
How was this patch tested?
ANALYZER_DUAL_RUN_LEGACY_AND_SINGLE_PASS_RESOLVER.Was this patch authored or co-authored using generative AI tooling?
Yes, copilot.