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access/heapam contains functions that are very storage specific (say heap_insert() and a lot of lower level functions), and fairly generic infrastructure like relation_open(), heap_open() etc. In the upcoming pluggable storage work we're introducing a layer between table accesses in general and heapam, to allow for different storage methods. For a bit cleaner separation it thus seems advantageous to move generic functions like the aforementioned to their own headers. access/relation.h will contain relation_open() etc, and access/table.h will contain table_open() (formerly known as heap_open()). I've decided for table.h not to include relation.h, but we might change that at a later stage. relation.h already exists in another directory, but the other plausible name (rel.h) also conflicts. It'd be nice if there were a non-conflicting name, but nobody came up with a suggestion. It's possible that the appropriate way to address the naming conflict would be to rename nodes/relation.h, which isn't particularly well named. To avoid breaking a lot of extensions that just use heap_open() etc, table.h has macros mapping the old names to the new ones, and heapam.h includes relation, table.h. That also allows to keep the bulk renaming of existing callers in a separate commit. Author: Andres Freund Discussion: https://postgr.es/m/20190111000539.xbv7s6w7ilcvm7dp@alap3.anarazel.de
15 lines
327 B
Makefile
15 lines
327 B
Makefile
#
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# Makefile for the access methods module
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#
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# src/backend/access/Makefile
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#
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subdir = src/backend/access
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top_builddir = ../../..
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include $(top_builddir)/src/Makefile.global
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SUBDIRS = brin common gin gist hash heap index nbtree rmgrdesc spgist \
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table tablesample transam
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include $(top_srcdir)/src/backend/common.mk
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