amcheck: Optimize speed of checking for unique constraint violation Currently, when amcheck validates a unique constraint, it visits the heap for each index tuple. This commit implements skipping keys, which have only one non-dedeuplicated index tuple (quite common case for unique indexes). That gives substantial economy on index checking time.
Reported-by: Noah Misch Discussion: https://postgr.es/m/20240325020323.fd.nmisch%40google.com Author: Alexander Korotkov, Pavel Borisov Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/cdd6ab9d1f5396ec1097d51c21a224aa41118c9c Modified Files -------------- contrib/amcheck/verify_nbtree.c | 36 +++++++++++++++++++++++++++++++++--- 1 file changed, 33 insertions(+), 3 deletions(-)
