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FULLTEXT Search performance
Posted by: Serge
Date: December 18, 2004 08:18AM

I have a large table with fulltext index (~180000 records, ~530Mb data, ~700Mb index).
All fulltext search queries execute too slow. How can I speed up theese queries?

mysql> select count(*) from papers where match(title,keywords) against("test");
+----------+
| count(*) |
+----------+
| 12474 |
+----------+
1 row in set (58.95 sec)

mysql> show columns from papers;
+----------+------------------+------+-----+---------+----------------+
| Field | Type | Null | Key | Default | Extra |
+----------+------------------+------+-----+---------+----------------+
| id | int(10) unsigned | | PRI | NULL | auto_increment |
| title | varchar(255) | | MUL | | |
| keywords | text | | | | |
+----------+------------------+------+-----+---------+----------------+
3 rows in set (0.01 sec)

mysql> show index from papers;
+--------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+
| Table | Non_unique | Key_name | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment |
+--------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+
| papers | 0 | PRIMARY | 1 | id | A | 178406 | NULL | NULL | | BTREE | |
| papers | 1 | search | 1 | title | A | NULL | NULL | NULL | | FULLTEXT | |
| papers | 1 | search | 2 | keywords | A | NULL | 1 | NULL | | FULLTEXT | |
+--------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+
3 rows in set (0.00 sec)

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