a239c4a0c2
pg_dump expects a read request of zero bytes to be a no-op; see for example ReadStr(). Gzip_read got this wrong and falsely supposed that the resulting gzret == 0 indicated an error. We could complicate that error-checking logic some more, but it seems best to just fall out immediately when passed size == 0. This bug breaks the nominally-supported case of manually gzip'ing the toc.dat file within a directory-style dump, so back-patch to v16 where this code came in. (Prior branches already have a short-circuit for size == 0 before their only gzread call.) Author: Tom Lane <tgl@sss.pgh.pa.us> Reviewed-by: Chao Li <li.evan.chao@gmail.com> Discussion: https://postgr.es/m/3515357.1760128017@sss.pgh.pa.us Backpatch-through: 16
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.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.