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a70e13a39e
Tighten the semantics of boundary-case timestamptz so that we allow timestamps >= '4714-11-24 00:00+00 BC' and < 'ENDYEAR-01-01 00:00+00 AD' exactly, no more and no less, but it is allowed to enter timestamps within that range using non-GMT timezone offsets (which could make the nominal date 4714-11-23 BC or ENDYEAR-01-01 AD). This eliminates dump/reload failure conditions for timestamps near the endpoints. To do this, separate checking of the inputs for date2j() from the final range check, and allow the Julian date code to handle a range slightly wider than the nominal range of the datatypes. Also add a bunch of checks to detect out-of-range dates and timestamps that formerly could be returned by operations such as date-plus-integer. All C-level functions that return date, timestamp, or timestamptz should now be proof against returning a value that doesn't pass IS_VALID_DATE() or IS_VALID_TIMESTAMP(). Vitaly Burovoy, reviewed by Anastasia Lubennikova, and substantially whacked around by me |
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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: 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. 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/.