feat: support pushdown alias on dynamic filter with ProjectionExec
#19404
+727
−9
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Signed-off-by: discord9 <discord9@163.com>
Signed-off-by: discord9 <discord9@163.com>
…test: filter pushdown projection Signed-off-by: discord9 <discord9@163.com>
discord9
changed the title
ProjectionExecProjectionExec
…iter&test: unit test Signed-off-by: discord9 <discord9@163.com>
…t assertions Signed-off-by: discord9 <discord9@163.com>
Signed-off-by: discord9 <discord9@163.com>
…output Signed-off-by: discord9 <discord9@163.com>
discord9
changed the title
ProjectionExecProjectionExec
Signed-off-by: discord9 <discord9@163.com>
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Which issue does this PR close?
Rationale for this change
For dynamic filter to work properly, table scan must get correct column even if it's passing through alias(by
ProjectionExec) hence need to modify parent filter whengather_filters_for_pushdownWhat changes are included in this PR?
as title, add support for handling simple alias in pushdown filter, which expand aliased column(in pushdown filter) to it's original expressions(or
UnKnownColumnif can't found aliased column in pushdown filter) so alias in projection is supported, also added unit tests.AI Content claim: the core logic is hand written and thoroughly understood, but unit test are largely generated with some human guidance
Are these changes tested?
Unit tests are added, please comment if more tests are needed
Are there any user-facing changes?
Yes, dynamic filter will work properly with alias now, I'm not sure if that count as breaking change though?