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167075be3a
Until now shadowed_variables was the only plpgsql check supported by plpgsql.extra_warnings and plpgsql.extra_errors. This patch introduces two new checks - strict_multi_assignment and too_many_rows. Unlike shadowed_variables, these new checks are enforced at run-time. strict_multi_assignment checks that commands allowing multi-assignment (for example SELECT INTO) have the same number of sources and targets. too_many_rows checks that queries with an INTO clause return one row exactly. These checks are aimed at cases that are technically valid and allowed, but are often a sign of a bug. Therefore those checks are expected to be enabled primarily in development and testing environments. Author: Pavel Stehule Reviewed-by: Stephen Frost, Tomas Vondra Discussion: https://www.postgresql.org/message-id/flat/CAFj8pRA2kKRDKpUNwLY0GeG1OqOp+tLS2yQA1V41gzuSz-hCng@mail.gmail.com |
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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/.