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Commit1b1e335

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Make the minimum allowed value of work_mem be 64KB always, rather than having
it vary with BLCKSZ as before. This agrees with what the documentation says,and avoids a regression test problem when BLCKSZ is larger than default.Per recent discussion.
1 parent772f63d commit1b1e335

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‎doc/src/sgml/config.sgml

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<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.175 2008/04/18 01:42:17 tgl Exp $ -->
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<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.176 2008/05/01 19:55:40 tgl Exp $ -->
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<chapter Id="runtime-config">
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<title>Server Configuration</title>
@@ -826,7 +826,7 @@ SET ENABLE_SEQSCAN TO OFF;
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<listitem>
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<para>
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Specifies the amount of memory to be used by internal sort operations
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and hash tables before switching to temporary disk files. The value is
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and hash tables before switching to temporary disk files. The value
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defaults to one megabyte (<literal>1MB</>).
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Note that for a complex query, several sort or hash operations might be
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running in parallel; each one will be allowed to use as much memory

‎src/backend/utils/misc/guc.c

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@@ -10,7 +10,7 @@
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* Written by Peter Eisentraut <peter_e@gmx.net>.
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.449 2008/04/29 20:44:49 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.450 2008/05/01 19:55:40 tgl Exp $
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*
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*--------------------------------------------------------------------
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*/
@@ -1339,7 +1339,7 @@ static struct config_int ConfigureNamesInt[] =
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GUC_UNIT_KB
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},
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&work_mem,
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1024,8*BLCKSZ /1024,MAX_KILOBYTES,NULL,NULL
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1024,64,MAX_KILOBYTES,NULL,NULL
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},
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{

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