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When there's a comment on an index that was created with UNIQUE or PRIMARY KEY constraint syntax, we need to label the comment as depending on the constraint not the index, since only the constraint object actually appears in the dump. This incorrect dependency can lead to parallel pg_restore trying to restore the comment before the index has been created, per bug #8257 from Lloyd Albin. This patch fixes pg_dump to produce the right dependency in dumps made in the future. Usually we also try to hack pg_restore to work around bogus dependencies, so that existing (wrong) dumps can still be restored in parallel mode; but that doesn't seem practical here since there's no easy way to relate the constraint dump entry to the comment after the fact. Andres Freund |
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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. Changes between all PostgreSQL releases are recorded in the file HISTORY. 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/.