0

Hi,

Need to Optimize the below Query. In database around 5,00,000 Records are there. Below query is taking around 1 min. to 1.30 min Execution Time. Need to optimize the query so that the result will be fetch in 5 to 10 Seconds.
We've used full text indexing for Website column and text index on  (`Company_name`(10), `Website1`(30), `City`(10), `State`(10), `Country`(10), `cleaned`,  `delete`, `junk`, `date_modified`, `approved_date`, `admin_user`).

Query:
SELECT id AS company_id, Company_name, City, State, Country, cleaned, update_user, date_modified AS cleaned_date, delete FROM data_table_new WHERE cleaned = 1 AND delete = 0 AND junk = 0 AND MATCH(Country) AGAINST ('India' IN BOOLEAN MODE) AND date_modified = '2013-04-15' ORDER BY date_modified DESC LIMIT 0, 25

Table Structure:

CREATE TABLE IF NOT EXISTS data_table_new (
id bigint(20) NOT NULL AUTO_INCREMENT,
Company_name text COLLATE utf8_unicode_ci,
Short_Profile text COLLATE utf8_unicode_ci,
Telephone text COLLATE utf8_unicode_ci,
Alt_Telephone text COLLATE utf8_unicode_ci NOT NULL,
Alt_Telephone2 text COLLATE utf8_unicode_ci NOT NULL,
Fax text COLLATE utf8_unicode_ci,
Alt_Fax text COLLATE utf8_unicode_ci NOT NULL,
Mobile text COLLATE utf8_unicode_ci,
Alt_Mobile text COLLATE utf8_unicode_ci NOT NULL,
Email text COLLATE utf8_unicode_ci,
Alt_Email1 text COLLATE utf8_unicode_ci NOT NULL,
Alt_Email2 text COLLATE utf8_unicode_ci NOT NULL,
Website text COLLATE utf8_unicode_ci,
Website1 text COLLATE utf8_unicode_ci,
Website2 text COLLATE utf8_unicode_ci NOT NULL,
Website3 text COLLATE utf8_unicode_ci NOT NULL,
Address text COLLATE utf8_unicode_ci,
Address2 text COLLATE utf8_unicode_ci NOT NULL,
Gender varchar(16) COLLATE utf8_unicode_ci NOT NULL,
Contact_Person_FName text COLLATE utf8_unicode_ci,
Contact_Person_LName text COLLATE utf8_unicode_ci NOT NULL,
Posting text COLLATE utf8_unicode_ci,
City text COLLATE utf8_unicode_ci,
Zipcode text COLLATE utf8_unicode_ci,
Business_Type text COLLATE utf8_unicode_ci,
Year_of_Establishment text COLLATE utf8_unicode_ci,
Office_Size text COLLATE utf8_unicode_ci NOT NULL,
Legal_Status_of_Firm text COLLATE utf8_unicode_ci,
Certification text COLLATE utf8_unicode_ci,
Annual_Turnover text COLLATE utf8_unicode_ci,
Number_of_Employees text COLLATE utf8_unicode_ci,
Export_Percentage text COLLATE utf8_unicode_ci,
Main_Markets text COLLATE utf8_unicode_ci,
Legal_Owner text COLLATE utf8_unicode_ci NOT NULL,
Legal_Representative text COLLATE utf8_unicode_ci,
State text COLLATE utf8_unicode_ci,
Country text COLLATE utf8_unicode_ci,
Banker text COLLATE utf8_unicode_ci,
Income_Tax_Registration_No text COLLATE utf8_unicode_ci,
Central_Sales_Tax_No text COLLATE utf8_unicode_ci,
State_Sales_Tax_No text COLLATE utf8_unicode_ci,
Import_Export_Code text COLLATE utf8_unicode_ci,
Tax_Identification_No text COLLATE utf8_unicode_ci,
SSI_No text COLLATE utf8_unicode_ci,
CIN_No text COLLATE utf8_unicode_ci,
SCT_No text COLLATE utf8_unicode_ci,
RBI_No text COLLATE utf8_unicode_ci,
PAN_No text COLLATE utf8_unicode_ci,
TAN_No text COLLATE utf8_unicode_ci,
EPF_No text COLLATE utf8_unicode_ci,
ESI_No text COLLATE utf8_unicode_ci,
Service_Tax_Registration_No text COLLATE utf8_unicode_ci,
Excise_Registration_No text COLLATE utf8_unicode_ci,
Dun_Bradstreet_Number text COLLATE utf8_unicode_ci,
Value_Added_Tax_Registration_No text COLLATE utf8_unicode_ci,
Industry text COLLATE utf8_unicode_ci,
Key_Customers text COLLATE utf8_unicode_ci,
DGFT_IE_Code text COLLATE utf8_unicode_ci,
Registration_Authority text COLLATE utf8_unicode_ci,
Payment_Mode text COLLATE utf8_unicode_ci,
Shipment_Mode text COLLATE utf8_unicode_ci,
Registration_No text COLLATE utf8_unicode_ci,
URL_ID text COLLATE utf8_unicode_ci,
Company_Introduction text COLLATE utf8_unicode_ci,
Detailed_Type text COLLATE utf8_unicode_ci NOT NULL,
Detailed_Profile text COLLATE utf8_unicode_ci NOT NULL,
Company_Profile text COLLATE utf8_unicode_ci,
Products_Manufacturing_and_Exporting text COLLATE utf8_unicode_ci,
Company_Branches text COLLATE utf8_unicode_ci,
Services text COLLATE utf8_unicode_ci,
Member_Affiliates text COLLATE utf8_unicode_ci,
We_Sell text COLLATE utf8_unicode_ci,
We_Buy text COLLATE utf8_unicode_ci,
Brands text COLLATE utf8_unicode_ci,
Factory_Size text COLLATE utf8_unicode_ci,
Factory_Location text COLLATE utf8_unicode_ci,
QA_QC text COLLATE utf8_unicode_ci,
Number_of_Production_Lines text COLLATE utf8_unicode_ci,
Number_of_RND_Staff text COLLATE utf8_unicode_ci,
Number_of_QC_Staff text COLLATE utf8_unicode_ci,
Contract_Manufacturing text COLLATE utf8_unicode_ci,
Registered_Location text COLLATE utf8_unicode_ci NOT NULL,
Registered_Address text COLLATE utf8_unicode_ci,
cleaned tinyint(1) NOT NULL,
date_modified date NOT NULL,
approved_date date NOT NULL,
delete tinyint(1) NOT NULL,
junk tinyint(1) NOT NULL,
admin_user int(4) NOT NULL,
update_user bigint(2) NOT NULL,
cr_date datetime NOT NULL,
buyer_supplier tinyint(2) NOT NULL COMMENT '0-Supplier,1-Buyer,2-Both',
company_represent tinyint(2) NOT NULL DEFAULT '0' COMMENT '0-Yes,1-No',
PRIMARY KEY (id),
KEY search_string (Company_name(10),Website1(30),City(10),State(10),Country(10),cleaned,delete,junk,date_modified,approved_date,admin_user),
FULLTEXT KEY ft_website1 (Website1)
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci AUTO_INCREMENT=1;

3
Contributors
3
Replies
25
Views
4 Years
Discussion Span
Last Post by masterjiraya
1

yep, normalization would be great, however

drop the current key coz i dont see the point and create new one on 'cleaned'

create index ix_cleaned on data_table_new (cleaned);

also use EXPLAIN to check if the query is using one of the indexes
it should be faster then 1:30

0

I agree on your Mr/Ms Dorco. The Bad thing is, it all stocked up in one database table. Plus it will take time to load all the fields because it handles 500k or 5M of records. is this database project for census (population count)?

This topic has been dead for over six months. Start a new discussion instead.
Have something to contribute to this discussion? Please be thoughtful, detailed and courteous, and be sure to adhere to our posting rules.