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
Branch
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master
Details
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https://git.postgresql.org/pg/commitdiff/8c951687f58ad604be13e6addfd56446afb36e13
Modified Files
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src/backend/utils/adt/datum.c | 19 ++++++++++++++++---
1 file changed, 16 insertions(+), 3 deletions(-)