Add tests for jsonb equality filtering

test/fixtures/data.sql

@@ -425,3 +425,9 @@ INSERT INTO json_arr VALUES (6, '[{"a": [1,2,3]}, {"b": [4,5]}]');
 INSERT INTO json_arr VALUES (7, '{"c": [1,2,3], "d": [4,5]}');
 INSERT INTO json_arr VALUES (8, '{"c": [{"d": [4,5,6,7,8]}]}');
 INSERT INTO json_arr VALUES (9, '[{"0xy1": [1,{"23-xy-45": [2, {"xy-6": [3]}]}]}]');
+
+TRUNCATE TABLE jsonb_test CASCADE;
+INSERT INTO jsonb_test VALUES (1, '{ "a": {"b": 2} }');
+INSERT INTO jsonb_test VALUES (2, '{ "c": [1,2,3] }');
+INSERT INTO jsonb_test VALUES (3, '[{ "d": "test" }]');
+INSERT INTO jsonb_test VALUES (4, '{ "e": 1 }');

test/fixtures/privileges.sql

@@ -81,6 +81,7 @@ GRANT ALL ON TABLE
     , projects_dump
     , "UnitTest"
     , json_arr
+    , jsonb_test
 TO postgrest_test_anonymous;
 
 GRANT INSERT ON TABLE insertonly TO postgrest_test_anonymous;

test/fixtures/schema.sql

@@ -1461,3 +1461,8 @@ create table json_arr(
   id integer primary key,
   data pg_catalog.json
 );
+
+create table jsonb_test(
+  id integer primary key,
+  data jsonb
+);