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0ec5f7e782
This is basically a finger exercise to prove that it's possible for an extension module to add subscripting ability. Subscripted fetch from an hstore is not different from the existing "hstore -> text" operator. Subscripted update does seem to be a little easier to use than the traditional update method using hstore concatenation, but it's not a fundamentally new ability. However, there may be some value in the code as sample code, since it shows what's basically the minimum-complexity way to implement subscripting when one needn't consider nested container objects. Discussion: https://postgr.es/m/3724341.1607551174@sss.pgh.pa.us
14 lines
421 B
SQL
14 lines
421 B
SQL
/* contrib/hstore/hstore--1.7--1.8.sql */
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-- complain if script is sourced in psql, rather than via ALTER EXTENSION
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\echo Use "ALTER EXTENSION hstore UPDATE TO '1.8'" to load this file. \quit
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CREATE FUNCTION hstore_subscript_handler(internal)
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RETURNS internal
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AS 'MODULE_PATHNAME', 'hstore_subscript_handler'
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LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
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ALTER TYPE hstore SET (
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SUBSCRIPT = hstore_subscript_handler
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);
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