EXPLAIN SELECT p.id
FROM `dle_category_map` AS t1 USE INDEX (news_id)
LEFT JOIN `dle_post` AS p USE INDEX (cat_posts) ON (t1.news_id = p.id)
WHERE t1.cat_id=65 AND approve=1
ORDER BY fixed DESC
LIMIT 1536,32
| id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra |
|----|-------------|-------|--------|---------------|-----------|---------|--------------------------|------|-------------|
| 1 | SIMPLE | p | ref | cat_posts | cat_posts | 1 | const | 8887 | Using where |
| 1 | SIMPLE | t1 | eq_ref | news_id | news_id | 8 | hdvideoscript.p.id,const | 1 | Using index |