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Enable parallel query by default.

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Change max_parallel_degree default from 0 to 2.  It is possible that
this is not a good idea, or that we should go with 1 worker rather
than 2, but we won't find out without trying it.  Along the way,
reword the documentation for max_parallel_degree a little bit to
hopefully make it more clear.

Discussion: 20160420174631.3qjjhpwsvvx5bau5@alap3.anarazel.de
This commit is contained in:
Robert Haas
2016-04-26 08:31:38 -04:00
parent b7351ced42
commit 77cd477c4b
4 changed files with 11 additions and 7 deletions
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2
src/backend/utils/misc/guc.c
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@ -2662,7 +2662,7 @@ static struct config_int ConfigureNamesInt[] =
NULL
},
&max_parallel_degree,
0, 0, MAX_BACKENDS,
2, 0, MAX_BACKENDS,
NULL, NULL, NULL
},