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It's essential that initdb.c's setup_depend() scan each system catalog that could contain objects that need to have "p" (pin) entries in pg_depend or pg_shdepend. Forgetting to add that, either when a catalog is first invented or when it first acquires DATA() entries, is an obvious bug hazard. We can detect such omissions at reasonable cost by probing every OID-containing system catalog to see whether the lowest-numbered OID in it is pinned. If so, the catalog must have been properly accounted for in setup_depend(). If the lowest OID is above FirstNormalObjectId then the catalog must have been empty at the end of initdb, so it doesn't matter. There are a small number of catalogs whose first entry is made later in initdb than setup_depend(), resulting in nonempty expected output of the test, but these can be manually inspected to see that they are OK. Any future mistake of this ilk will manifest as a new entry in the test's output. Since pg_conversion is already in the test's output, add it to the set of catalogs scanned by setup_depend(). That has no effect today (hence, no catversion bump here) but it will protect us if we ever do add pin-worthy conversions. This test is very much like the catalog sanity checks embodied in opr_sanity.sql and type_sanity.sql, but testing pg_depend doesn't seem to fit naturally into either of those scripts' charters. Hence, invent a new test script misc_sanity.sql, which can be a home for this as well as tests on any other catalogs we might want in future. Discussion: https://postgr.es/m/8068.1498155068@sss.pgh.pa.us |
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README
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/.