ccd7abaa45
The tests of stats_import.sql include a set of queries to do
differential checks of the three statistics catalog relations, based on
the comparison of a source relation and a target relation, used for the
copy of the stats data with the restore functions:
- pg_statistic
- pg_stats_ext
- pg_stats_ext_exprs
This commit refactors the tests to reduce the bloat of such differential
queries, by creating a set of objects that make the differential queries
smaller:
- View for a base relation type.
- First function to retrieve stats data, that returns a type based on
the view previously created.
- Second function that checks the difference, based on two calls of the
first function.
This change leads to a nice reduction of stats_import.sql, with a larger
effect on the output file.
While on it, this adds some sanity checks for the three catalogs, to
warn developers that the stats import facilities may need to be updated
if any of the three catalogs change. These are rare in practice, see
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| .cirrus.yml | ||
| .dir-locals.el | ||
| .editorconfig | ||
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| .gitignore | ||
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| aclocal.m4 | ||
| configure | ||
| configure.ac | ||
| COPYRIGHT | ||
| GNUmakefile.in | ||
| HISTORY | ||
| Makefile | ||
| meson.build | ||
| meson_options.txt | ||
| 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/.