Src |
CREATE FUNCTION "URX_PUBLIC"."_raster_constraint_info_nodata_values"(rastschema name, rasttable name, rastcolumn name)
RETURNS double precision[] AS
$BODY$
SELECT
trim(both '''' from
split_part(
regexp_replace(
split_part(s.consrc, ' = ', 2),
'[\(\)]', '', 'g'
),
'::', 1
)
)::double precision[]
FROM pg_class c, pg_namespace n, pg_attribute a, pg_constraint s
WHERE n.nspname = $1
AND c.relname = $2
AND a.attname = $3
AND a.attrelid = c.oid
AND s.connamespace = n.oid
AND s.conrelid = c.oid
AND a.attnum = ANY (s.conkey)
AND s.consrc LIKE '%_raster_constraint_nodata_values(%';
$BODY$
LANGUAGE 'sql' STABLESTRICT ;
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