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b05fe7b442
Most importantly, remove optimization in LogicalRepSyncTableStart that skips the normal walrcv_startstreaming/endstreaming dance. The optimization is not critically important for production uses anyway, since it only fires in cases with no activity, and saves an uninteresting amount of work even then. Critically, it obscures bugs by hiding the interesting code path from test cases. Also: in GetSubscriptionRelState, remove pointless relation open; access pg_subscription_rel->srsubstate with GETSTRUCT as is typical rather than SysCacheGetAttr; remove unused 'missing_ok' argument. In wait_for_relation_state_change, use explicit catalog snapshot invalidation rather than obscurely (and expensively) through GetLatestSnapshot. In various places: sprinkle comments more liberally and rewrite a number of them. Other cosmetic code improvements. No backpatch, since no bug is being fixed here. Author: Álvaro Herrera <alvherre@alvh.no-ip.org> Reviewed-by: Petr Jelínek <petr.jelinek@2ndquadrant.com> Discussion: https://postgr.es/m/20201010190637.GA5774@alvherre.pgsql |
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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. PostgreSQL has many language interfaces, many of which are listed here: https://www.postgresql.org/download/ See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.