Add test for single-page VACUUM of hash index on INSERT _hash_vacuum_one_page() in hashinsert.c is a routine related to hash indexes that can perform a single-page VACUUM when dead tuples are detected during index insertion. This routine previously had no test coverage, and this commit adds a test case for that purpose.
To safely create dead tuples in a way that works with parallel tests, this uses a technique based on a rollbacked INSERT, following a suggestion by Heikki Linnakangas. Author: Alexander Kuzmenkov <[email protected]> Reviewed-by: Heikki Linnakangas <[email protected]> Discussion: https://postgr.es/m/calzhyqxrc1zhymf5v8ne+ymboqvg7xzrqm7k2c7vs0p1v8z...@mail.gmail.com Branch ------ master Details ------- https://git.postgresql.org/pg/commitdiff/1f7947a48d0c4b802f986ac32dc0e95b6f7f8f8f Modified Files -------------- src/test/regress/expected/hash_index.out | 21 +++++++++++++++++++++ src/test/regress/sql/hash_index.sql | 17 +++++++++++++++++ 2 files changed, 38 insertions(+)
