postgresql/ltree_plpythonu--1.0.sql at 0b28ea79c044a0d3779081dc909a6dc0ce93b991 - postgresql - Gitea: Git with a cup of tea

rdelaage/postgresql

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Peter Eisentraut cac7658205 Add transforms feature

This provides a mechanism for specifying conversions between SQL data
types and procedural languages.  As examples, there are transforms
for hstore and ltree for PL/Perl and PL/Python.

reviews by Pavel Stěhule and Andres Freund

2015-04-26 10:33:14 -04:00

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SQL

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 -- make sure the prerequisite libraries are loaded
 DO '1' LANGUAGE plpythonu;
 SELECT NULL::ltree;
 CREATE FUNCTION ltree_to_plpython(val internal) RETURNS internal
 LANGUAGE C STRICT IMMUTABLE
 AS 'MODULE_PATHNAME';
 CREATE TRANSFORM FOR ltree LANGUAGE plpythonu (
     FROM SQL WITH FUNCTION ltree_to_plpython(internal)
 );