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Beyond 21474, the number of accounts exceed the range for int4. Change the initialization code to use bigint for account id columns when scale is large enough, and switch to using int64s for the variables in pgbench code. The threshold where we switch to bigints is set at 20000, because that's easier to remember and document than 21474, and ensures that there is some headroom when int4s are used. Greg Smith, with various changes by Euler Taveira de Oliveira, Gurjeet Singh and Satoshi Nagayasu. |
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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: 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/.