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Commit 3eb77eba moved a _mdfd_getseg() call from mdsync() into a new callback function mdsyncfiletag(), but didn't get the arguments quite right. Without the EXTENSION_DONT_CHECK_SIZE flag we fail to open a segment if lower-numbered segments have been truncated, and it wants a block number rather than a segment number. While comparing with the older coding, also remove an unnecessary clobbering of errno, and adjust the code in mdunlinkfiletag() to ressemble the original code from mdpostckpt() more closely instead of using an unnecessary call to smgropen(). Author: Thomas Munro Discussion: https://postgr.es/m/CA%2BhUKGL%2BYLUOA0eYiBXBfwW%2BbH5kFgh94%3DgQH0jHEJ-t5Y91wQ%40mail.gmail.com
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/.