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cac7658205
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
13 lines
347 B
SQL
13 lines
347 B
SQL
-- make sure the prerequisite libraries are loaded
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DO '1' LANGUAGE plpython3u;
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SELECT NULL::ltree;
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CREATE FUNCTION ltree_to_plpython3(val internal) RETURNS internal
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LANGUAGE C STRICT IMMUTABLE
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AS 'MODULE_PATHNAME', 'ltree_to_plpython';
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CREATE TRANSFORM FOR ltree LANGUAGE plpython3u (
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FROM SQL WITH FUNCTION ltree_to_plpython3(internal)
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);
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