From: | Peter Geoghegan <pg(at)bowt(dot)ie> |
---|---|
To: | pgsql-committers(at)lists(dot)postgresql(dot)org |
Subject: | pgsql: Consistently truncate non-key suffix columns. |
Date: | 2020-03-30 19:04:18 |
Message-ID: | E1jIzhq-0003Ed-2W@gemulon.postgresql.org |
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Lists: | pgsql-committers |
Consistently truncate non-key suffix columns.
INCLUDE indexes failed to have their non-key attributes physically
truncated away in certain rare cases. This led to physically larger
pivot tuples that contained useless non-key attribute values. The
impact on users should be negligible, but this is still clearly a
regression (Postgres 11 supports INCLUDE indexes, and yet was not
affected).
The bug appeared in commit dd299df8, which introduced "true" suffix
truncation of key attributes.
Discussion: https://postgr.es/m/CAH2-Wz=E8pkV9ivRSFHtv812H5ckf8s1-yhx61_WrJbKccGcrQ@mail.gmail.com
Backpatch: 12-, where "true" suffix truncation was introduced.
Branch
------
REL_12_STABLE
Details
-------
https://git.postgresql.org/pg/commitdiff/97cda93d81dc89ab05703e1c3344525ab268e49f
Modified Files
--------------
src/backend/access/nbtree/nbtutils.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
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