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improve predicate combination and schema state #3788

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Jun 23, 2022
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fixes #3784

// predicates
in predicate pushdown predicates were always combined with:

lit(true) && predicate

now, we simply insert the predicate.

// joins

joins branch the query executor, the schemas therefore need
to be split by join branch

// python

activate timezone feature

// predicates
in predicate pushdown predicates were always combined with:

lit(true) && predicate

now, we simply insert the predicate.

// joins

joins branch the query executor, the schemas therefore need
to be split by join branch

// python

activate timezone feature
@github-actions github-actions bot added python Related to Python Polars rust Related to Rust Polars labels Jun 23, 2022
@ritchie46 ritchie46 merged commit cb81c86 into master Jun 23, 2022
@ritchie46 ritchie46 deleted the improve_lazy branch June 23, 2022 18:21
joshuataylor pushed a commit to joshuataylor/polars that referenced this pull request Jun 23, 2022
// predicates
in predicate pushdown predicates were always combined with:

lit(true) && predicate

now, we simply insert the predicate.

// joins

joins branch the query executor, the schemas therefore need
to be split by join branch

// python

activate timezone feature
cnpryer pushed a commit to cnpryer/polars that referenced this pull request Jul 19, 2022
// predicates
in predicate pushdown predicates were always combined with:

lit(true) && predicate

now, we simply insert the predicate.

// joins

joins branch the query executor, the schemas therefore need
to be split by join branch

// python

activate timezone feature
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Regression bug on 0.13.49 - filter with apply on list[cat] not working
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