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c73669c0e0
There was some confusion on how to record the case that the operation unlinks the last non-leaf page in the branch being deleted. _bt_unlink_halfdead_page set the "topdead" field in the WAL record to the leaf page, but the redo routine assumed that it would be an invalid block number in that case. This commit fixes _bt_unlink_halfdead_page to do what the redo routine expected. This code is new in 9.4, so backpatch there.
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/.