testdb=# select count(*) from vkon_json; count ---------- 10000000 (1 row) testdb=# select * from vkon_json limit 3; js | id --------------------------------------------+---- {"f1": "c4ca4238a0b923820dcc509a6f75849b"} | 1 {"f1": "c81e728d9d4c2f636f067f89cc14862c"} | 2 {"f1": "eccbc87e4b5ce2fe28308fd9f2a7baf3"} | 3 (3 rows) -- retrieve: testdb=# select * from vkon_json where js @> '{"f1": "d1ca3aaf52b41acd68ebb3bf69079bd1"}'; js | id --------------------------------------------+---------- {"f1": "d1ca3aaf52b41acd68ebb3bf69079bd1"} | 10000000 (1 row) Time: 0.679 ms