mirror of
https://git.postgresql.org/git/postgresql.git
synced 2024-09-30 02:01:20 +02:00
48a1fb2390
Now that we're expecting a mergeclause's left_ec/right_ec to persist from the initial assignments, we can't just blithely zero these out when transforming such a clause in adjust_appendrel_attrs. But really it should be okay to keep the parent's values, since a child table's derived Var ought to be equivalent to the parent Var for all EquivalenceClass purposes. (Indeed, I'm wondering whether we couldn't find a way to dispense with add_child_rel_equivalences altogether. But this is wrong in any case.) |
||
|---|---|---|
| config | ||
| contrib | ||
| doc | ||
| src | ||
| .gitignore | ||
| aclocal.m4 | ||
| configure | ||
| configure.in | ||
| COPYRIGHT | ||
| GNUmakefile.in | ||
| Makefile | ||
| README | ||
| README.git | ||
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: http://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. Changes between all PostgreSQL releases are recorded in the file HISTORY. 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 http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.