Some of the queries in the "sanity" tests in the regression test suite (opr_sanity, type_sanity) are very confusing. One main stumbling block is that for some probably ancient reason many of the older queries are written with correlation names p1, p2, etc. independent of the name of the catalog. This one is a good example: SELECT p1.oid, p1.oprname, p2.oid, p2.proname FROM pg_operator AS p1, pg_proc AS p2 <-- HERE WHERE p1.oprcode = p2.oid AND p1.oprkind = 'l' AND (p2.pronargs != 1 OR NOT binary_coercible(p2.prorettype, p1.oprresult) OR NOT binary_coercible(p1.oprright, p2.proargtypes[0]) OR p1.oprleft != 0); This is better written as SELECT o1.oid, o1.oprname, p1.oid, p1.proname FROM pg_operator AS o1, pg_proc AS p1 WHERE o1.oprcode = p1.oid AND o1.oprkind = 'l' AND (p1.pronargs != 1 OR NOT binary_coercible(p1.prorettype, o1.oprresult) OR NOT binary_coercible(o1.oprright, p1.proargtypes[0]) OR o1.oprleft != 0); This patch cleans up all the queries in this manner. (As in the above case, I kept the digits like o1 and p1 even in cases where only one of each letter is used in a query. This is mainly to keep the style consistent.) Discussion: https://www.postgresql.org/message-id/flat/c538308b-319c-8784-e250-1284d12d5411%40enterprisedb.com
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/.
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Mirror of the official PostgreSQL GIT repository. Note that this is just a *mirror* - we don't work with pull requests on github. To contribute, please see https://wiki.postgresql.org/wiki/Submitting_a_Patch
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