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Previously statement_timeout, in the extended protocol, affected all messages till a Sync message. For clients that pipeline/batch query execution that's problematic. Instead disable timeout after each Execute message, and enable, if necessary, the timer in start_xact_command(). As that's done only for Execute and not Parse / Bind, pipelining the latter two could still cause undesirable timeouts. But a survey of protocol implementations shows that all drivers issue Sync messages when preparing, and adding timeout rearming to both is fairly expensive for the common parse / bind / execute sequence. Author: Tatsuo Ishii, editorialized by Andres Freund Reviewed-By: Takayuki Tsunakawa, Andres Freund Discussion: https://postgr.es/m/20170222.115044.1665674502985097185.t-ishii@sraoss.co.jp
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/.