SELECT json_condense('"hello"'); json_condense --------------- "hello" (1 row) SELECT json_condense($$"hello\u266Bworld"$$); json_condense --------------- "hello♫world" (1 row) SELECT json_condense($$"hello\u266bworld"$$); json_condense --------------- "hello♫world" (1 row) SELECT json_condense($$"hello♫world"$$); json_condense --------------- "hello♫world" (1 row) SELECT json_condense($$ "hello world" $$); json_condense --------------- "hello world" (1 row) SELECT json_condense($$ { "hello" : "world"} $$); json_condense ------------------- {"hello":"world"} (1 row) SELECT json_condense($$ { "hello" : "world", "bye": 0.0001 } $$); json_condense -------------------------------- {"hello":"world","bye":0.0001} (1 row) SELECT json_condense($$ { "hello" : "world", "bye": 0.0000001 } $$); json_condense ----------------------------------- {"hello":"world","bye":0.0000001} (1 row) SELECT json_condense($$ { "hello" : "world" , "bye" : [-0.1234e1, 12345e0] } $$); json_condense --------------------------------------------- {"hello":"world","bye":[-0.1234e1,12345e0]} (1 row)