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maria:10.5-order_by_limit

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Last commit made on 2020-04-15
Get this branch:
git clone -b 10.5-order_by_limit https://git.launchpad.net/maria

Branch merges

Branch information

Name:
10.5-order_by_limit
Repository:
lp:maria

Recent commits

9b0225f... by varun

more test added

74d080d... by varun

Self review

9ffeed1... by varun

Fixing buildbot failures

1ee02f2... by varun

fixing sort_nest.test

f221f10... by varun

Fixing tests for sort nest

0aa6bde... by Sergey Petrunia

MDEV-21713: LIMIT optimization and selectivity: pessimistic estimates cause optimistic plans

Don't use LIMIT-based query plans if we don't have an accurate estimate
of join output cardinality (the primary reason for that is lack of
data about condition selectivity).

45bc188... by varun

Fixing a minor performance regression

e9b6afe... by varun

Minor fixes after rebasing on 10.5

70e9fe5... by varun

Fixing optimizer trace tests failing

fdb77fd... by varun

Fix to address performance regression of ORDER BY with limit queries