text: /* contrib/pg_trgm/pg_trgm--1.2--1.3.sql */
  
  -- complain if script is sourced in psql, rather than via ALTER EXTENSION
  \echo Use "ALTER EXTENSION pg_trgm UPDATE TO '1.3'" to load this file. \quit
  
  -- Update procedure signatures the hard way.
  -- We use to_regprocedure() so that query doesn't fail if run against 9.6beta1 definitions,
  -- wherein the signatures have been updated already.  In that case to_regprocedure() will
  -- return NULL and no updates will happen.
  DO LANGUAGE plpgsql
  $$
  DECLARE
    my_schema pg_catalog.text := pg_catalog.quote_ident(pg_catalog.current_schema());
    old_path pg_catalog.text := pg_catalog.current_setting('search_path');
  BEGIN
  -- for safety, transiently set search_path to just pg_catalog+pg_temp
  PERFORM pg_catalog.set_config('search_path', 'pg_catalog, pg_temp', true);
  
  UPDATE pg_catalog.pg_proc SET
    proargtypes = pg_catalog.array_to_string(newtypes::pg_catalog.oid[], ' ')::pg_catalog.oidvector,
    pronargs = pg_catalog.array_length(newtypes, 1)
  FROM (VALUES
  (NULL::pg_catalog.text, NULL::pg_catalog.text[]), -- establish column types
  ('gtrgm_consistent(internal,text,int4,oid,internal)', '{internal,text,int2,oid,internal}'),
  ('gtrgm_distance(internal,text,int4,oid)', '{internal,text,int2,oid,internal}'),
  ('gtrgm_union(bytea,internal)', '{internal,internal}')
  ) AS update_data (oldproc, newtypestext),
  LATERAL (
    SELECT array_agg(replace(typ, 'SCH', my_schema)::regtype) as newtypes FROM unnest(newtypestext) typ
  ) ls
  WHERE oid = to_regprocedure(my_schema || '.' || replace(oldproc, 'SCH', my_schema));
  
  UPDATE pg_catalog.pg_proc SET
    prorettype = (my_schema || '.gtrgm')::pg_catalog.regtype
  WHERE oid = pg_catalog.to_regprocedure(my_schema || '.gtrgm_union(internal,internal)');
  
  PERFORM pg_catalog.set_config('search_path', old_path, true);
  END
  $$;
  
  ALTER FUNCTION set_limit(float4) PARALLEL UNSAFE;
  ALTER FUNCTION show_limit() PARALLEL SAFE;
  ALTER FUNCTION show_trgm(text) PARALLEL SAFE;
  ALTER FUNCTION similarity(text, text) PARALLEL SAFE;
  ALTER FUNCTION similarity_op(text, text) PARALLEL SAFE;
  ALTER FUNCTION word_similarity(text, text) PARALLEL SAFE;
  ALTER FUNCTION word_similarity_op(text, text) PARALLEL SAFE;
  ALTER FUNCTION word_similarity_commutator_op(text, text) PARALLEL SAFE;
  ALTER FUNCTION similarity_dist(text, text) PARALLEL SAFE;
  ALTER FUNCTION word_similarity_dist_op(text, text) PARALLEL SAFE;
  ALTER FUNCTION word_similarity_dist_commutator_op(text, text) PARALLEL SAFE;
  ALTER FUNCTION gtrgm_in(cstring) PARALLEL SAFE;
  ALTER FUNCTION gtrgm_out(gtrgm) PARALLEL SAFE;
  ALTER FUNCTION gtrgm_consistent(internal, text, smallint, oid, internal) PARALLEL SAFE;
  ALTER FUNCTION gtrgm_distance(internal, text, smallint, oid, internal) PARALLEL SAFE;
  ALTER FUNCTION gtrgm_compress(internal) PARALLEL SAFE;
  ALTER FUNCTION gtrgm_decompress(internal) PARALLEL SAFE;
  ALTER FUNCTION gtrgm_penalty(internal, internal, internal) PARALLEL SAFE;
  ALTER FUNCTION gtrgm_picksplit(internal, internal) PARALLEL SAFE;
  ALTER FUNCTION gtrgm_union(internal, internal) PARALLEL SAFE;
  ALTER FUNCTION gtrgm_same(gtrgm, gtrgm, internal) PARALLEL SAFE;
  ALTER FUNCTION gin_extract_value_trgm(text, internal) PARALLEL SAFE;
  ALTER FUNCTION gin_extract_query_trgm(text, internal, int2, internal, internal, internal, internal) PARALLEL SAFE;
  ALTER FUNCTION gin_trgm_consistent(internal, int2, text, int4, internal, internal, internal, internal) PARALLEL SAFE;
  ALTER FUNCTION gin_trgm_triconsistent(internal, int2, text, int4, internal, internal, internal) PARALLEL SAFE;
  