QUERY PLAN
Update on tbl_unread_comments (cost=0.42..21.81 rows=4 width=26)
-> Index Scan using tbl_unread_comments_pkey on tbl_unread_comments (cost=0.42..21.81 rows=4 width=26)
Index Cond: (id = ANY ('{283244,283347,283450,283553}'::integer[]))