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mysql query with modulus in where clause
Posted by: sreedevi iyer
Date: January 11, 2013 03:02PM

explain extended SELECT
FROM accountAge
WHERE (2567 -lastModifiedCalendarId) % 7 =0
and 2567 - lastUsedCalendarId < 7

Is there any where I can rewrite this Query. Right Now it is doing a tablescan

There is index on both the columns
lastModifiedCalendarId and lastUsedCalendarId.

Here is the table Structure:

create table accountAge (
accountId bigint(20) unsigned NOT NULL,
countryId smallint(5) unsigned NOT NULL,
lastModifiedCalendarId int NOT NULL,
lastUsedCalendarId int not null,
PRIMARY KEY (accountId),
index idx_lastModifiedCalendarId(lastModifiedCalendarId),
index idx_lastUsedCalendarId(lastUsedCalendarId)

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mysql query with modulus in where clause
January 11, 2013 03:02PM

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