QUERY PLAN
Seq Scan on tbl_user_meta (cost=0.00..5.79 rows=20 width=79)
Filter: (((meta_key)::text = 'avatar'::text) AND (user_id = ANY ('{1000,5064,5445,1023,5446,5252,5440,5085,5250,5413,5449,5388,1013,5360,5296,5016,5248,1011,1017,5448}'::integer[])))