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Base de données relationnelle
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Historically these were called >^ and <^, but that is inconsistent with the similar box, polygon, and circle operators, which are named |>> and <<| respectively. Worse, the >^ and <^ names are used for *not* strict above/below tests for the box type. Hence, invent new operators following the more common naming. The old operators remain available for now, and are still accepted by the relevant index opclasses too. But there's a deprecation notice, so maybe we can get rid of them someday. Emre Hasegeli, reviewed by Pavel Borisov Discussion: https://postgr.es/m/24348.1587444160@sss.pgh.pa.us |
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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/.