使用FULL TEXT索引优化MySQL查询

Question

如果关键字不止一个，我的查询会花费太多时间（例如：＆＃34;相框＆＃34;）。该表位于InnoDB引擎中。我在表中有以下索引（索引名称类型列）：

1. fldForSearch FULLTEXT fldForSearch
2. fldProductsOffered FULLTEXT fldProductsOffered
3. fldCompanyProfile FULLTEXT fldCompanyProfile
4. profile_product FULLTEXT fldCompanyProfile，fldProductsOffered
5. product_brand FULLTEXT fldProductsOffered，fldCompanyBrand
6. profile_products_brand FULLTEXT fldCompanyProfile，fldProductsOffered，fldCompanyBrand
7. fldCompanyBrand FULLTEXT fldCompanyBrand
8. fldForProductSearch FULLTEXT fldForProductSearch
9. cp_cb_po_ps FULLTEXT fldCompanyProfile
10. fs_cb FULLTEXT fldForSearch，fldCompanyBrand
11. fs_cb_ps FULLTEXT fldForSearch，fldCompanyBrand，fldForProductSearch

以下是查询：

SELECT count( S.fldProfileId ) total, group_concat( DISTINCT (
U.fldCountry
)
SEPARATOR ', ' ) AS allCountryIds,
MATCH (
S.fldForSearch, S.fldCompanyBrand
)
AGAINST (
'"photo frames"'
) AS rank1, (

MATCH (
S.fldForSearch, S.fldCompanyBrand
)
AGAINST (
'photo photos'
)
AND MATCH (
S.fldForSearch, S.fldCompanyBrand
)
AGAINST (
'frame frames'
)
) AS rank2,
MATCH (
S.fldForProductSearch
)
AGAINST (
'"photo frames"'
) AS rank3, (

MATCH (
S.fldForProductSearch
)
AGAINST (
'photo photos'
)
AND MATCH (
S.fldForProductSearch
)
AGAINST (
'frame frames'
)
) AS rank4
FROM tblUserMaster U, tblSupplierProfileMaster AS S
WHERE S.fldHideSource = 'N'
AND S.fldUserId = U.fldUserId
AND U.fldUserStatus = 'Y'
AND S.fldProfileStatus = 'A'
AND MATCH (
S.fldForSearch, S.fldCompanyBrand, S.fldForProductSearch
)
AGAINST (
' photo photos frame frames'
)

我有FULLTEXT搜索中存在的所有列的索引组合。 查询第一次花费时间，但下次快速运行。

我重新创建了所有索引但没有效果。即使Optimize Table没有帮助。

更新：上述查询的结果是：

+-------+--------------------+--------------------+-------+-------------+-------+
| total | allCountryIds      | rank1              | rank2 | rank3       | rank4 |
+-------+--------------------+--------------------+-------+-------------+-------+
|  3390 | 222, 104, 223, ... | 14.645795822143555 |     1 | 60246.34375 |     1 |
+-------+--------------------+--------------------+-------+-------------+-------+

表格结构：

CREATE TABLE `tblSupplierProfileMaster` (
 `fldProfileId` int(11) NOT NULL AUTO_INCREMENT,
 `fldUserId` int(11) NOT NULL DEFAULT '0',
 `fldProductsOffered` text NOT NULL,
 `fldCompanyProfile` text NOT NULL,
 `fldCompanyBrand` text NOT NULL,
 `fldForSearch` text NOT NULL,
 `fldForProductSearch` longtext NOT NULL,
 `fldDateOfCreation` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
 `fldLastModifyDate` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
 `fldProfileStatus` enum('A','P','D') NOT NULL DEFAULT 'A',
 PRIMARY KEY (`fldProfileId`),
 UNIQUE KEY `fldUserId` (`fldUserId`),
 UNIQUE KEY `fldProfileStatus` (`fldProfileStatus`,`fldHideSource`,`fldUserId`),
 FULLTEXT KEY `fldForSearch` (`fldForSearch`),
 FULLTEXT KEY `fldProductsOffered` (`fldProductsOffered`),
 FULLTEXT KEY `fldCompanyProfile` (`fldCompanyProfile`),
 FULLTEXT KEY `profile_product` (`fldCompanyProfile`,`fldProductsOffered`),
 FULLTEXT KEY `product_brand` (`fldProductsOffered`,`fldCompanyBrand`),
 FULLTEXT KEY `profile_products_brand` (`fldCompanyProfile`,`fldProductsOffered`,`fldCompanyBrand`),
 FULLTEXT KEY `fldCompanyBrand` (`fldCompanyBrand`),
 FULLTEXT KEY `fldForProductSearch` (`fldForProductSearch`),
 FULLTEXT KEY `cp_cb_po_ps` (`fldCompanyProfile`,`fldCompanyBrand`,`fldProductsOffered`,`fldForProductSearch`),
 FULLTEXT KEY `fs_cb` (`fldForSearch`,`fldCompanyBrand`),
 FULLTEXT KEY `fs_cb_ps` (`fldForSearch`,`fldCompanyBrand`,`fldForProductSearch`)
) ENGINE=InnoDB AUTO_INCREMENT=304194 DEFAULT CHARSET=latin1 COMMENT='store the profile of suppliers'

更新2：解释查询结果：

+------+-------------+-------+----------+------------------------------------------+----------+---------+-----------------------+------+-------------+
| id   | select_type | table | type     | possible_keys                            | key      | key_len | ref                   | rows | Extra       |
+------+-------------+-------+----------+------------------------------------------+----------+---------+-----------------------+------+-------------+
|    1 | SIMPLE      | S     | fulltext | fldUserId,fldProfileStatus,DEV1,fs_cb_ps | fs_cb_ps | 0       |                       |    1 | Using where |
|    1 | SIMPLE      | U     | eq_ref   | PRIMARY,fldMemberId,fldUserStatus        | PRIMARY  | 4       | wdeals_uk.S.fldUserId |    1 | Using where |
+------+-------------+-------+----------+------------------------------------------+----------+---------+-----------------------+------+-------------+