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Clean up the messy semantics (not to mention inefficiency) of PageGetTempPage

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by splitting it into three functions with better-defined behaviors.

Zdenek Kotala
This commit is contained in:
Tom Lane
2008-11-03 20:47:49 +00:00
parent f0dae70431
commit b4eae023bb
10 changed files with 60 additions and 55 deletions
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17
src/backend/access/gin/ginutil.c
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@ -8,7 +8,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/access/gin/ginutil.c,v 1.17 2008/09/30 10:52:10 heikki Exp $
* $PostgreSQL: pgsql/src/backend/access/gin/ginutil.c,v 1.18 2008/11/03 20:47:48 tgl Exp $
*-------------------------------------------------------------------------
*/
@ -310,21 +310,6 @@ extractEntriesSU(GinState *ginstate, OffsetNumber attnum, Datum value, int32 *ne
return entries;
}
/*
* It's analog of PageGetTempPage(), but copies whole page
*/
Page
GinPageGetCopyPage(Page page)
{
Size pageSize = PageGetPageSize(page);
Page tmppage;
tmppage = (Page) palloc(pageSize);
memcpy(tmppage, page, pageSize);
return tmppage;
}
Datum
ginoptions(PG_FUNCTION_ARGS)
{