374a6394c6
Move explain_mask_costs() and the associated planner row-estimation tests from misc_functions.sql to a new regression test file, planner_est.sql. Previously, there wasn't an ideal home for such tests, likely as there were very few such tests due to width and selectivity estimations being too dependent on statistics and hardware. That's not always the case, as we have SupportRequestRows support functions. More such tests are possibly on the way, so let's create a better home so that we don't have to create the explain_mask_costs() function in each file we might have added such tests to. Author: Ilia Evdokimov <ilya.evdokimov@tantorlabs.com> Reviewed-by: David Rowley <dgrowleyml@gmail.com> Discussion: https://postgr.es/m/CAApHDvphShGABn-3AoE36dTvGHW7gUpFSw0_ZZnH84wGCW3hHw@mail.gmail.com |
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| configure | ||
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| HISTORY | ||
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| README.md | ||
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/.