ba3d93b2e8
init_params() sets up "last_value" and "is_called" for a sequence relation holdind its metadata, based on the sequence properties in pg_sequences. "log_cnt" is the third property that can be updated in this routine for FormData_pg_sequence_data, tracking when WAL records should be generated for a sequence after nextval() iterations. This routine is called when creating or altering a sequence. This commit refactors init_params() to not depend anymore on FormData_pg_sequence_data, removing traces of it in sequence.c, making easier the manipulation of metadata related to sequences. The knowledge about "log_cnt" is replaced with a more general "reset_state" flag, to let the caller know if the sequence state should be reset. In the case of in-core sequences, this relates to WAL logging. We still need to depend on FormData_pg_sequence. Author: Michael Paquier <michael@paquier.xyz> Reviewed-by: Kirill Reshke <reshkekirill@gmail.com> Reviewed-by: Tomas Vondra <tomas@vondra.me> Discussion: https://postgr.es/m/ZWlohtKAs0uVVpZ3@paquier.xyz
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/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.