A former core utility for creating a procedural language
This entry relates to a PostgreSQL feature, application/utility, website or other subject which is no longer available/maintained.
createlang is a former core utility for creating a procedural language.
createlang was added in PostgreSQL 6.5 and removed in PostgreSQL 10.
createlang was provided as a convenience wrapper for creating procedural languages. With the introduction of extensions in PostgreSQL 9.1, it was effectively replaced by the
CREATE EXTENSION command, though was initially retained for backwards compatibility.