0e2fb2c8c3
hashbulkdelete() fetched the relcache's cached hash metapage before
calling read_stream_begin_relation(). During the read stream
initialization, relation lookups may process pending relcache
invalidation messages, which could cause the cached metapage to be
invalidated before the read stream uses it, leading to the failure of a
VACUUM bulk-deletion for a hash index.
This commit reworks the order of hashbulkdelete() so as its read stream
is initialized before fetching the cached metapage, so as pending
invalidation messages do not interfere with the relation scan.
Issue introduced by bfa3c4f106.
Author: Mikhail Nikalayeu <mihailnikalayeu@gmail.com>
Reviewed-by: Bertrand Drouvot <bertranddrouvot.pg@gmail.com>
Reviewed-by: Nazir Bilal Yavuz <byavuz81@gmail.com>
Reviewed-by: Xuneng Zhou <xunengzhou@gmail.com>
Discussion: https://postgr.es/m/CADzfLwVEJ2_7ioX3ZSB1P7qXW40ghUy_ZCzeFvhDLoa_3Muztg@mail.gmail.com
Backpatch-through: 19
PostgreSQL Database Management System
This directory contains the source code distribution of the PostgreSQL database management system.
PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/19/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/19/installation.html.
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