2fd3e2fa5c
This code was passing literal strings to psqlscan_emit, which is quite contrary to that function's specification: "If you pass it something that is not part of the yytext string, you are making a mistake". It accidentally worked anyway, even in non-safe_encoding mode. psqlscan_emit would compute a garbage "reference" pointer, but would never dereference that since the passed string is all-ASCII. So there's no live bug today, but that is a happenstance outcome of psqlscan_emit's current implementation. Let's make psqlscan_test_variable do what it's supposed to, namely append directly to the output buffer. This is just future-proofing against possible changes in psqlscan_emit, so I don't feel a need to back-patch.
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/.