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f65d21b258
Add commentary about what we're doing and why. Apply the method used for padding in GenerationChunk to AllocChunkData, replacing the rather ad-hoc solution used in commit 7e3aa03b4. Reorder fields in GenerationChunk so that the padding calculation will work even if sizeof(size_t) is different from sizeof(void *) --- likely that will never happen, but we don't need the assumption if we do it like this. Improve static assertions about alignment. In passing, fix a couple of oversights in the "large chunk" path in GenerationAlloc(). Discussion: https://postgr.es/m/E1eHa4J-0006hI-Q8@gemulon.postgresql.org
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/.