korowa opened a new pull request, #2421:
URL: https://github.com/apache/arrow-datafusion/pull/2421
# Which issue does this PR close?
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Partially #488.
# Rationale for this change
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Naive implementation of optimizer rule for replacing InSubquery with join,
which allows to execute queries with IN (subquery) in case of proper WHERE
condition.
# What changes are included in this PR?
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sometimes worth providing a summary of the individual changes in this PR.
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SubqueryFilterToJoin rule is able to replace Filter input in logical plan
with Sem/AntiJoin in case InSubquery is a part of logical conjunction - this
precondition allows to pushdown IN predicate before other predicates in Filter.
Cases when IN (subquery) result cannot be pushed to Filters input and its
result required for predicate evaluation, are handled by returning
NotImplemented error for now.
# Are there any user-facing changes?
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updated before approving the PR.
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Queries with IN (subquery) predicates start executing for described above
filter combinations
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No
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