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* new split algorithm (as proposed in http://archives.postgresql.org/pgsql-hackers/2006-06/msg00254.php)
  * possible call pickSplit() for second and below columns
  * add spl_(l|r)datum_exists to GIST_SPLITVEC -
    pickSplit should check its values to use already defined
    spl_(l|r)datum for splitting. pickSplit should set
    spl_(l|r)datum_exists to 'false' (if they was 'true') to
    signal to caller about using spl_(l|r)datum.
  * support for old pickSplit(): not very optimal
    but correct split
* remove 'bytes' field from GISTENTRY: in any case size of
  value is defined by it's type.
* split GIST_SPLITVEC to two structures: one for using in picksplit
  and second - for internal use.
* some code refactoring
* support of subsplit to rtree opclasses

TODO: add support of subsplit to contrib modules
This commit is contained in:
Teodor Sigaev
2006-06-28 12:00:14 +00:00
parent a1dc5c60bc
commit 1f7ef548ec
23 changed files with 266 additions and 645 deletions
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4
src/backend/access/gist/Makefile
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@ -4,7 +4,7 @@
# Makefile for access/gist
#
# IDENTIFICATION
# $PostgreSQL: pgsql/src/backend/access/gist/Makefile,v 1.15 2005/07/01 19:19:02 tgl Exp $
# $PostgreSQL: pgsql/src/backend/access/gist/Makefile,v 1.16 2006/06/28 12:00:13 teodor Exp $
#
#-------------------------------------------------------------------------
@ -13,7 +13,7 @@ top_builddir = ../../../..
include $(top_builddir)/src/Makefile.global
OBJS = gist.o gistutil.o gistxlog.o gistvacuum.o gistget.o gistscan.o \
gistproc.o
gistproc.o gistsplit.o
all: SUBSYS.o