Use PageIndexTupleOverwrite() within nbtree.
Use the PageIndexTupleOverwrite() bufpage.c routine within nbtree
instead of deleting a tuple and re-inserting its replacement. This
makes the intent of affected code slightly clearer. It also makes
CREATE INDEX slightly faster, since there is no longer a need to shift
every leaf page's line pointer array back and forth during index builds.
Author: Peter Geoghegan, Anastasia Lubennikova
Reviewed-By: Anastasia Lubennikova
Discussion: https://postgr.es/m/CAH2-Wz=Zk=B9+Vwm376WuO7YTjFc2SSskifQm4Nme3RRRPtOSQ@mail.gmail.com
Branch
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master
Details
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https://git.postgresql.org/pg/commitdiff/af0ba49809b57203d87702b315b64f1fd53c728d
Modified Files
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src/backend/access/nbtree/nbtpage.c | 9 ++++-----
src/backend/access/nbtree/nbtsort.c | 21 ++++++---------------
2 files changed, 10 insertions(+), 20 deletions(-)