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Improve two places in plpgsql, and one in spi.c, where an error message would confusingly tell you that you couldn't use a SELECT query, when what you had written *was* a SELECT query. The actual problem is that you can't use SELECT ... INTO in these contexts, but the messages failed to make that apparent. Special-case SELECT INTO to make these errors more helpful. Also, fix the same spots in plpgsql, as well as several messages in exec_eval_expr(), to not quote the entire complained-of query or expression in the primary error message. That behavior very easily led to violating our message style guideline about keeping the primary error message short and single-line. Also, since the important part of the message was after the inserted text, it could make the real problem very hard to see. We can report the query or expression as the first line of errcontext instead. Per complaint from Roger Mason. Back-patch to v14, since (a) some of these messages are new in v14 and (b) v14's translatable strings are still somewhat in flux. The problem's older than that of course, but I'm hesitant to change the behavior further back. Discussion: https://postgr.es/m/1914708.1629474624@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: 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/.