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Re: OOM-killer issue when updating a inheritance table which has large number of child tables - Mailing list pgsql-hackers

From Tom Lane
Subject Re: OOM-killer issue when updating a inheritance table which has large number of child tables
Date
Msg-id 10837.1426168840@sss.pgh.pa.us
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In response to OOM-killer issue when updating a inheritance table which has large number of child tables  (chenhj <chjischj@163.com>)
Responses Re: OOM-killer issue when updating a inheritance table which has large number of child tables  (Stephen Frost <sfrost@snowman.net>)
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chenhj <chjischj@163.com> writes:
> In my test(PG9.3.4), i found when update a parent table which has a large number of child tables, the execute plan
willconsume lots of memory. And possibly cause OOM.
 

See
file:///net/sss1/home/postgres/pgsql/doc/src/sgml/html/ddl-partitioning.html#DDL-PARTITIONING-CAVEATS

particularly the last paragraph.
        regards, tom lane

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