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The TAP test included in this new module runs the regression tests with pg_plan_advice loaded. It arranges for each query to be planned twice. The first time, we generate plan advice. The second time, we replan the query using the resulting advice string. If the tests fail, that means that using pg_plan_advice to tell the planner to do what it was going to do anyway breaks something, which indicates a problem either with pg_plan_advice or with the planner. The test also enables pg_plan_advice.feedback_warnings, so that if the plan advice fails to apply cleanly when the query is replanned, a failure will occur. Reviewed-by: Alexandra Wang <alexandra.wang.oss@gmail.com> Reviewed-by: Lukas Fittl <lukas@fittl.com> Discussion: http://postgr.es/m/CA%2BTgmoZzM2i%2Bp-Rxdphs4qx7sshn-kzxF91ASQ5duOo0dFRXLQ%40mail.gmail.com |
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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.
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/.