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We can't throw elog(ERROR) out of a Tcl command procedure; we have to catch the error and return TCL_ERROR to the Tcl interpreter. pltcl_returnnext failed to meet this requirement, so that errors detected by pltcl_build_tuple_result or other functions called here led to longjmp'ing out of the Tcl interpreter and thereby leaving it in a bad state. Use the existing subtransaction support to prevent that. Oversight in commit26abb50c4, found more or less accidentally by the buildfarm thanks to the tests added in961bed020. Report: https://postgr.es/m/30647.1483989734@sss.pgh.pa.us
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. 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/.