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Only internal page splits need to call _bt_pgaddtup() instead of
PageAddItem(), and only for data items, one of which will end up at the
first offset (or first offset after the high key offset) on the new
right page. This data item alone will need to be truncated in
_bt_pgaddtup().
Since there is no reason why retail inserts ever need to truncate the
incoming item, use a raw PageAddItem() call there instead. Even
_bt_split() uses raw PageAddItem() calls for left page and right page
high keys. Clearly the _bt_pgaddtup() shim function wasn't really
encapsulating anything. _bt_pgaddtup() should now be thought of as a
_bt_split() helper function.
Note that the assertions from commit
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config | ||
contrib | ||
doc | ||
src | ||
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.editorconfig | ||
.gitattributes | ||
.gitignore | ||
aclocal.m4 | ||
configure | ||
configure.in | ||
COPYRIGHT | ||
GNUmakefile.in | ||
HISTORY | ||
Makefile | ||
README | ||
README.git |
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/.