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authorIgor Babaev <igor@askmonty.org>2018-04-16 16:59:19 -0700
committerIgor Babaev <igor@askmonty.org>2018-04-16 16:59:19 -0700
commit5e61e1716e763315009318081fba5994b8910242 (patch)
tree4e587d23f540686146db5ef7685bcd32ccf04885 /sql/sql_partition.cc
parent88ac368fea2182447284d6bacff4d93ef1acb865 (diff)
downloadmariadb-git-5e61e1716e763315009318081fba5994b8910242.tar.gz
MDEV-14515 ifnull result depends on number of rows in joined table
Any expensive WHERE condition for a table-less query with implicit aggregation was lost. As a result the used aggregate functions were calculated over a non-empty set of rows even in the case when the condition was false.
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