6f34fcbbd5
json_to_record(), when an output column is declared as type json or jsonb, should emit the corresponding field of the input JSON object. But it got this slightly wrong when the field is just a string literal: it failed to escape the contents of the string. That typically resulted in syntax errors if the string contained any double quotes or backslashes. jsonb_to_record() handles such cases correctly, but I added corresponding test cases for it too, to prevent future backsliding. Improve the documentation, as it provided only a very hand-wavy description of the conversion rules used by these functions. Per bug report from Robert Vollmert. Back-patch to v10 where the error was introduced (by commit cf35346e8). Note that PG 9.4 - 9.6 also get this case wrong, but differently so: they feed the de-escaped contents of the string literal to json[b]_in. That behavior is less obviously wrong, so possibly it's being depended on in the field, so I won't risk trying to make the older branches behave like the newer ones. Discussion: https://postgr.es/m/D6921B37-BD8E-4664-8D5F-DB3525765DCD@vllmrt.net
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/.