postgresql/doc
Robert Haas 4212cb7326 Fix interaction of parallel query with prepared statements.
Previously, a prepared statement created via a Parse message could get
a parallel plan, but one created with a PREPARE statement could not.
This state of affairs was due to confusion on my (rhaas) part: I
erroneously believed that a CREATE TABLE .. AS EXECUTE statement could
only be performed with a prepared statement by PREPARE, but in fact
one created by a Prepare message works just as well.  Therefore, it
makes no sense to allow parallel query in one case but not the other.

To fix, allow parallel query with all prepared statements, but run
the parallel plan serially (i.e. without workers) in the case of
CREATE TABLE .. AS EXECUTE.  Also, document this.

Amit Kapila and Tobias Bussman, plus an extra sentence of
documentation by me.
2016-12-06 11:11:54 -05:00
..
src Fix interaction of parallel query with prepared statements. 2016-12-06 11:11:54 -05:00
bug.template Stamp HEAD as 10devel. 2016-08-15 13:49:49 -04:00
KNOWN_BUGS Remove extra newlines at end and beginning of files, add missing newlines 2010-08-19 05:57:36 +00:00
Makefile Remove maintainer-check target, fold into normal build 2013-10-10 20:11:56 -04:00
MISSING_FEATURES Remove extra newlines at end and beginning of files, add missing newlines 2010-08-19 05:57:36 +00:00
TODO Update URL. 2008-08-21 20:15:31 +00:00