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2be355498e
The values 'infinity' and '-infinity' are a part of the DATE type itself, so a bound of the date 'infinity' is not the same as an unbounded/infinite range. However, it is still wrong to try to canonicalize such values, because adding or subtracting one has no effect. Fix by treating 'infinity' and '-infinity' the same as unbounded ranges for the purposes of canonicalization (but not other purposes). Backpatch to all versions because it is inconsistent with the documented behavior. Note that this could be an incompatibility for applications relying on the behavior contrary to the documentation. Author: Laurenz Albe Reviewed-by: Thomas Munro Discussion: https://postgr.es/m/77f24ea19ab802bc9bc60ddbb8977ee2d646aec1.camel%40cybertec.at Backpatch-through: 9.4 |
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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/.