
This new entry type is used for all the fixed-numbered statistics, making possible support for custom pluggable stats. In short, we need to be able to detect more easily if a stats kind exists or not when reading back its data from the pgstats file without a dependency on the order of the entries read. The kind ID of the stats is added to the data written. The data is written in the same fashion as previously, with the fixed-numbered stats first and the dshash entries next. The read part becomes more flexible, loading fixed-numbered stats into shared memory based on the new entry type found. Bump PGSTAT_FILE_FORMAT_ID. Reviewed-by: Bertrand Drouvot Discussion: https://postgr.es/m/Zot5bxoPYdS7yaoy@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.
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