Add db-extra-search-path config (#1218)

For adding schemas to the search_path, solves issues related to extensions created in the public schema.

test/fixtures/data.sql

@@ -463,3 +463,13 @@ select
   'last_name_' || generate_series,
   '2018-10-11'
 from generate_series(1, 6);
+
+TRUNCATE TABLE ltree_sample CASCADE;
+INSERT INTO ltree_sample VALUES ('Top');
+INSERT INTO ltree_sample VALUES ('Top.Science');
+INSERT INTO ltree_sample VALUES ('Top.Science.Astronomy');
+INSERT INTO ltree_sample VALUES ('Top.Science.Astronomy.Astrophysics');
+INSERT INTO ltree_sample VALUES ('Top.Science.Astronomy.Cosmology');
+
+TRUNCATE TABLE isn_sample CASCADE;
+INSERT INTO isn_sample VALUES ('978-0-393-04002-9', 'Mathematics: From the Birth of Numbers');

test/fixtures/database.sql

@@ -1,3 +1,3 @@
 set client_min_messages to warning;
-DROP SCHEMA IF EXISTS test, private, postgrest, jwt, public, تست CASCADE;
+DROP SCHEMA IF EXISTS test, private, postgrest, jwt, public, تست, extensions CASCADE;
 DROP TYPE IF EXISTS jwt_token CASCADE;

test/fixtures/privileges.sql

@@ -5,6 +5,7 @@ GRANT USAGE ON SCHEMA
     , jwt
     , public
     , "تست"
+    , extensions
 TO postgrest_test_anonymous;
 
 -- Schema test objects
@@ -92,6 +93,8 @@ GRANT ALL ON TABLE
     , contract
     , player_view
     , contract_view
+    , ltree_sample
+    , isn_sample
 TO postgrest_test_anonymous;
 
 GRANT INSERT ON TABLE insertonly TO postgrest_test_anonymous;

test/fixtures/schema.sql

@@ -17,7 +17,7 @@ CREATE SCHEMA postgrest;
 CREATE SCHEMA private;
 CREATE SCHEMA test;
 CREATE SCHEMA تست;
-
+CREATE SCHEMA extensions;
 
 --
 -- Name: plpgsql; Type: EXTENSION; Schema: -; Owner: -
@@ -1605,6 +1605,27 @@ create view test.contract_view as select * from test.contract;
 
 create type public.my_type AS enum ('something');
 
-CREATE FUNCTION test.test_arg(my_arg public.my_type) RETURNS text AS $$
-  SELECT 'foobar'::text;
-$$ LANGUAGE sql;
+create function test.test_arg(my_arg public.my_type) returns text as $$
+  select 'foobar'::text;
+$$ language sql;
+
+create extension if not exists ltree with schema public;
+
+create table test.ltree_sample (
+  path public.ltree
+);
+
+CREATE FUNCTION test.number_of_labels(test.ltree_sample) RETURNS integer AS $$
+  SELECT nlevel($1.path)
+$$ language sql;
+
+create extension if not exists isn with schema extensions;
+
+create table test.isn_sample (
+  id extensions.isbn,
+  name text
+);
+
+create function test.is_valid_isbn(input text) returns boolean as $$
+  select is_valid(input::isbn);
+$$ language sql;