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4b0c3712c5
exec_stmt_call() tried to extract information out of a CALL statement's argument list without using expand_function_arguments(), apparently in the hope of saving a few nanoseconds by not processing defaulted arguments. It got that quite wrong though, leading to crashes with named arguments, as well as failure to enforce writability of the argument for a defaulted INOUT parameter. Fix and simplify the logic by using expand_function_arguments() before examining the list. Also, move the argument-examination to just after producing the CALL command's plan, before invoking the called procedure. This ensures that we'll track possible changes in the procedure's argument list correctly, and avoids a hazard of the plan cache being flushed while the procedure executes. Also fix assorted falsehoods and omissions in associated documentation. Per bug #15477 from Alexey Stepanov. Patch by me, with some help from Pavel Stehule. Back-patch to v11. Discussion: https://postgr.es/m/15477-86075b1d1d319e0a@postgresql.org Discussion: https://postgr.es/m/CAFj8pRA6UsujpTs9Sdwmk-R6yQykPx46wgjj+YZ7zxm4onrDyw@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/.