QUERY PLAN
Seq Scan on tbl_user_meta (cost=0.00..5.79 rows=20 width=75)
Filter: (((meta_key)::text = 'avatar'::text) AND (user_id = ANY ('{5388,5467,1017,5296,5404,5445,5329,5420,5448,5440,5413,1025,1014,5412,5419,5247,5015,5359,5409,5411}'::integer[])))