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d98ed080bb
pg_base64_enc_len() and its clones overestimated the output
length by up to 2 bytes, as a result of sloppy thinking about
where to divide. No callers require a precise estimate, so
this has no consequences worse than palloc'ing a byte or two
more than necessary. We might as well get it right though.
This bug is very ancient, dating to commit 79d78bb26 which
added encode.c. (The other instances were presumably copied
from there.) Still, it doesn't quite seem worth back-patching.
Oleg Tselebrovskiy
Discussion: https://postgr.es/m/f94da55286a63022150bc266afdab754@postgrespro.ru
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/.