--JSON_VALUE-- 1 1.2 true "world" null "bar" --JSON_QUERY-- [{"hello":1}] [1] [1.2] [true] ["world"] [null] [["world","world2"]] [{"world":"!"}] [0, 1, 4, 0, -1, -4] --JSON_EXISTS-- 1 0 1 1 1 0 1 0 0 1 1 0 1 0 1 --MANY ROWS-- 0 ["Vasily", "Kostya"] 1 ["Tihon", "Ernest"] 2 ["Katya", "Anatoliy"]