Previously, GetJsonPathVar() allowed a jsonpath expression to reference any prefix of a PASSING variable's name. For example, the following query would incorrectly work: SELECT JSON_QUERY(context_item, jsonpath '$xy' PASSING val AS xyz); The fix ensures that the length of the variable name mentioned in a jsonpath expression matches exactly with the name of the PASSING variable before comparing the strings using strncmp(). Reported-by: Alvaro Herrera (off-list) Discussion: https://postgr.es/m/CA+HiwqFGkLWMvELBH6E4SQ45qUHthgcRH6gCJL20OsYDRtFx_w@mail.gmail.com
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.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.