Horton

Teach datum_image_eq() about cstring datums.

Peter Geoghegan <pg@bowt.ie>

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Commit: 8c951687f58ad604be13e6addfd56446afb36e13
Author: Peter Geoghegan <pg@bowt.ie>
Date: 2019-11-12T19:25:34Z
Releases: 13.0 
Teach datum_image_eq() about cstring datums.

Bring datum_image_eq() in line with datumIsEqual() by adding support for
comparing cstring datums.

An upcoming patch that adds deduplication to the nbtree AM will use
datum_image_eq().  datum_image_eq() will need to work with all datatypes
that can be used as the storage type of a B-Tree index column, including
cstring.  (cstring is used as the storage type for columns of type
"name" as a space-saving optimization.)

Discussion: https://postgr.es/m/CAH2-Wzn3Ee49Gmxb7V1VJ3-AC8fWn-Fr8pfWQebHe8rYRxt5OQ@mail.gmail.com

Files

PathChange+/−
src/backend/utils/adt/datum.c modified +16 −3

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