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Cherry-pick documentation for cost, statistics, CBO#13155

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rschlussel merged 2 commits intoprestodb:masterfrom
aweisberg:cherry-pick-127
Jan 7, 2020
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Cherry-pick documentation for cost, statistics, CBO#13155
rschlussel merged 2 commits intoprestodb:masterfrom
aweisberg:cherry-pick-127

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@aweisberg aweisberg commented Jul 30, 2019

Cherry-pick of trinodb/trino#127

== NO RELEASE NOTE ==

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LGTM

@rschlussel , could you please also have a look?

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Decision of build and probe side is also done by cost-based join distribution. Cost-based join-enumeration adds the decision of whether to reorder multiple inner joins (if you're joining 3 tables, which 2 get joined first)

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Added a line to address this.

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I think you accidentally deleted the rest of this paragraph. It should be something like

The join distribution type is governed by the ``join_distribution_type``
session property, with the ``join-distribution-type`` configuration
property providing the default value.

Extracted-From: https://github.com/starburstdata/presto

Cherry-pick of trinodb/trino#127

Co-authored-by: Ariel Weisberg <aweisberg@fb.com>
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Extracted-From: https://github.com/starburstdata/presto

Cherry-pick of trinodb/trino#127

Co-authored-by: Łukasz Osipiuk <lukasz@osipiuk.net>
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test failure is a timeout, and this is a pure docs change that's definitely not related. i'll merge without rebuilding.

@rschlussel rschlussel merged commit 5e57428 into prestodb:master Jan 7, 2020
@aweisberg aweisberg mentioned this pull request Jan 17, 2020
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@caithagoras caithagoras mentioned this pull request Jan 22, 2020
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5 participants