/usr/share/postgresql/10/extension/bloom--1.0.sql is in postgresql-10 10.3-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 | /* contrib/bloom/bloom--1.0.sql */
-- complain if script is sourced in psql, rather than via CREATE EXTENSION
\echo Use "CREATE EXTENSION bloom" to load this file. \quit
CREATE FUNCTION blhandler(internal)
RETURNS index_am_handler
AS 'MODULE_PATHNAME'
LANGUAGE C;
-- Access method
CREATE ACCESS METHOD bloom TYPE INDEX HANDLER blhandler;
COMMENT ON ACCESS METHOD bloom IS 'bloom index access method';
-- Opclasses
CREATE OPERATOR CLASS int4_ops
DEFAULT FOR TYPE int4 USING bloom AS
OPERATOR 1 =(int4, int4),
FUNCTION 1 hashint4(int4);
CREATE OPERATOR CLASS text_ops
DEFAULT FOR TYPE text USING bloom AS
OPERATOR 1 =(text, text),
FUNCTION 1 hashtext(text);
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