+SELECT '["a","b"]'::jsonb || '{"a":{"b":3, "c":[1,2,3,4]}, "d":2}'::jsonb;
+SELECT '{"a":{"b":3, "c":[1,2,3,4]}, "d":2}'::jsonb || '["a","b"]'::jsonb;
+
+-------------------------------------------------------------------------------
+-- Tests for jsonb =# jsonb
+-------------------------------------------------------------------------------
+
+-- any keys existing in left argument have values replaced with those from righ argument
+SELECT '{"a": 1, "b": 2, "c":[1,2,3], "d":{"test":false}}'::jsonb #= '{"a": [1,2,3,4], "b": {"f":100, "j":{"k":200}}, "c": 4, "d":{"test":true}}'::jsonb;
+
+-- note that as we are matching only keys and replacing values operation on an scalar/array elements effectively does nothing
+SELECT '{"a":[1,2], "b":2, "c":12}'::jsonb #= '["a","b","c"]'::jsonb;
+SELECT '{"a":[1,2], "b":2, "c":12}'::jsonb #= '[1,2,3]'::jsonb;
+SELECT '[1,2,3]'::jsonb #= '[1,2,3,4]'::jsonb;
+SELECT '"a"'::jsonb #= '{"a":1, "b":2}'::jsonb;
+SELECT '{"a":1, "b":2}'::jsonb #= '"a"'::jsonb;
+
+-------------------------------------------------------------------------------
+-- Tests for jsonb #- text[]
+-------------------------------------------------------------------------------
+SELECT '"a"'::jsonb #- ARRAY['b'];
+SELECT '["a"]'::jsonb #- ARRAY['b'];
+SELECT '{"a":1}'::jsonb #- ARRAY['b'];
+
+SELECT '"a"'::jsonb #- ARRAY['a'];
+SELECT '["a"]'::jsonb #- ARRAY['a'];
+SELECT '{"a":1}'::jsonb #- ARRAY['a'];
+
+SELECT '["a", "b"]'::jsonb #- ARRAY['a'];
+SELECT '{"a":1, "b":2}'::jsonb #- ARRAY['a'];
+SELECT '{"a":{"b":1}, "c":2}'::jsonb #- ARRAY['a'];
+
+SELECT '{"a":[1,2,3,4], "b":2}'::jsonb #- ARRAY['a'];
+SELECT '{"a":[1,2,3,4], "b":2}'::jsonb #- ARRAY['b'];
+
+SELECT '{"a":{"b":[1,2,3,["a","b"]]}, "c":2}'::jsonb #- ARRAY['c'];
+SELECT '{"a":{"b":[1,2,3,["a","b"]]}, "c":2}'::jsonb #- ARRAY['a'];
+SELECT '{"a":{"b":[1,2,3,["a","b"]]}, "c":2}'::jsonb #- ARRAY['a','c'];
+SELECT '{"a":{"b":[1,2,3,["a","b"]]}, "c":2}'::jsonb #- ARRAY['a','b'];
+SELECT '{"a":{"b":[1,2,3,["a","b"]]}, "c":2}'::jsonb #- ARRAY['a','b','c'];
+SELECT '{"a":{"b":{"c":1}, "c":[1,2,3,["a","b"]]}, "d":3}'::jsonb #- ARRAY['a','b','c'];
+
+SELECT '{"a":{"b":[1,2,3,["a","b"]], "c":[1,2,3,4]}, "d":2}'::jsonb #- ARRAY['a','b'];
+SELECT '{"a":{"b":[1,2,3,["a","b"]], "c":[1,2,3,4]}, "d":2}'::jsonb #- ARRAY['a','c'];
+SELECT '{"a":{"b":[1,2,3,["a","b"]], "c":[1,2,3,4]}, "d":2}'::jsonb #- ARRAY['a',null];
+
+SELECT '{"a":{"b":[1,2,3,["a",{"b":3}]], "c":[1,2,3,4]}, "d":2}'::jsonb #- ARRAY['a','b'];
+
+SELECT '{"a":{"b":3, "d":[1,{"Z":[1,[2,3]]}]}}'::jsonb #- ARRAY['a','d'];
+
+SELECT '["a", {"b":[1,2,3,4,5]}, 1, "c"]'::jsonb #- ARRAY['a'];
+SELECT '["a", {"b":[1,2,3,4,5]}, 1, "c"]'::jsonb #- ARRAY['c'];
+SELECT '[1,[2,[3,[4,[5,6,7]]]],"a","b"]'::jsonb #- ARRAY['b'];
+SELECT '[1,[2,[3,[4,[5,6,7]]]],"a","b"]'::jsonb #- ARRAY['a'];
+
+-- expected limitation: cannot call with path deeper than 1 on a non-object
+SELECT '["a", "b"]'::jsonb #- ARRAY['a','b'];
+
+-------------------------------------------------------------------------------
+-- Tests for jsonb_replace_path jsonb text[]
+-------------------------------------------------------------------------------
+SELECT jsonb_replace_path('{"a":1, "b":2}', ARRAY['a'], '{"f":3}'::jsonb);
+SELECT jsonb_replace_path('{"a":{"b":1}}', ARRAY['a'], '{"f":3}'::jsonb);
+SELECT jsonb_replace_path('{"a":{"b":1}}', ARRAY['a','b'], '{"f":3}'::jsonb);
+SELECT jsonb_replace_path('{"a":{"b":1, "c":1}}', ARRAY['a','b'], '{"f":3}'::jsonb);
+SELECT jsonb_replace_path('{"a":{"b":1, "c":1}}', ARRAY['a','c'], '{"f":3}'::jsonb);
+
+SELECT jsonb_replace_path('{"a":{"b":1, "c":2, "d":[1,2]}}', ARRAY['a','b'], '{"f":3}'::jsonb);
+SELECT jsonb_replace_path('{"a":{"b":1, "c":2, "d":[1,2]}}', ARRAY['a','c'], '{"f":3}'::jsonb);
+SELECT jsonb_replace_path('{"a":{"b":1, "c":2, "d":[1,2]}}', ARRAY['a','d'], '{"f":3}'::jsonb);
+
+SELECT jsonb_replace_path('{"a":{"d":[1,{"Z":[1,[2,3]]}]}}', ARRAY['a','d'], '{"f":3}'::jsonb);
+SELECT jsonb_replace_path('{"a":{"b":1, "c":2, "d":[1,{"Z":[1,[2,3]]}]}}', ARRAY['a','b'], '{"f":3}'::jsonb);
+SELECT jsonb_replace_path('{"a":{"b":1, "c":2, "d":[1,{"Z":[1,[2,3]]}]}}', ARRAY['a','c'], '{"f":3}'::jsonb);
+SELECT jsonb_replace_path('{"a":{"b":1, "c":2, "d":[1,{"Z":[1,[2,3]]}]}}', ARRAY['a','d'], '{"f":3}'::jsonb);
+SELECT jsonb_replace_path('{"a":1, "b":null, "c":[1,2,null], "c":{"d":11}, "e":{"20":[100,"c"]}}', ARRAY['c'], '{"f":[[1],2], "g":"test", "h":{"i":{"j":null}}}');
+
+SELECT jsonb_replace_path('"a"', ARRAY['a'], '{"f":10}'::jsonb);
+SELECT jsonb_replace_path('"a"', ARRAY['z'], '{"f":10}'::jsonb);
+SELECT jsonb_replace_path('[null, "a"]', ARRAY[null], '"b"'::jsonb);
+SELECT jsonb_replace_path('[1,2,3,"4"]', ARRAY['4'], '"5"'::jsonb);