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Split tuptoaster.c into three separate files.

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detoast.c/h contain functions required to detoast a datum, partially
or completely, plus a few other utility functions for examining the
size of toasted datums.

toast_internals.c/h contain functions that are used internally to the
TOAST subsystem but which (mostly) do not need to be accessed from
outside.

heaptoast.c/h contains code that is intrinsically specific to the
heap AM, either because it operates on HeapTuples or is based on the
layout of a heap page.

detoast.c and toast_internals.c are placed in
src/backend/access/common rather than src/backend/access/heap.  At
present, both files still have dependencies on the heap, but that will
be improved in a future commit.

Patch by me, reviewed and tested by Prabhat Sabu, Thomas Munro,
Andres Freund, and Álvaro Herrera.

Discussion: http://postgr.es/m/CA+TgmoZv-=2iWM4jcw5ZhJeL18HF96+W1yJeYrnGMYdkFFnEpQ@mail.gmail.com
This commit is contained in:
Robert Haas
2019-07-08 11:58:05 -04:00
parent 74a308cf52
commit 8b94dab066
37 changed files with 2612 additions and 2557 deletions
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2
src/backend/utils/cache/catcache.c vendored
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@ -15,10 +15,10 @@
#include "postgres.h"
#include "access/genam.h"
#include "access/heaptoast.h"
#include "access/relscan.h"
#include "access/sysattr.h"
#include "access/table.h"
#include "access/tuptoaster.h"
#include "access/valid.h"
#include "access/xact.h"
#include "catalog/pg_collation.h"