How can i tune this mysql query to run successfully - mysql

Question

This is my query on mysql version 8
select sender, fullName, phoneNumber, addressState, businessName, bvn, max(date)
from tranlog t INNER JOIN agent a on t.sender = a.realId
where captureDate < '2022-03-01' and active = 'Y' and thirdparty = 0
group by sender
CREATE TABLE `agent` (
`id` bigint NOT NULL AUTO_INCREMENT,
`realId` varchar(19) DEFAULT NULL,
`active` char(1) DEFAULT NULL,
`phoneNumber` varchar(15) DEFAULT NULL,
`address` varchar(255) DEFAULT NULL,
`addressState` varchar(50) DEFAULT NULL,
`addressCity` varchar(50) DEFAULT NULL,
`fullName` varchar(255) DEFAULT NULL,
`businessName` varchar(255) DEFAULT NULL,
`corporate` bit(1) DEFAULT b'0',
`thirdparty` bit(1) NOT NULL DEFAULT b'0',
PRIMARY KEY (`id`),
KEY `id` (`fee_group`),
KEY `realId` (`realId`),
KEY `agent_password` (`password`),
KEY `agent_idx` (`active`,`thirdparty`),
) ENGINE=InnoDB AUTO_INCREMENT=29784 DEFAULT CHARSET=latin1;
CREATE TABLE `tranlog` (
`id` bigint NOT NULL AUTO_INCREMENT
`date` datetime DEFAULT NULL
`captureDate` date DEFAULT NULL
`sender` varchar(50) DEFAULT NULL
PRIMARY KEY (`id`)
KEY `tranlog_date` (`date`)
KEY `sender` (`sender`)
KEY `tranlog_capturedate_idx` (`captureDate`)
) ENGINE=InnoDB AUTO_INCREMENT=49373312 DEFAULT CHARSET=latin1"
But i keep getting 'C:windows\TEMP#sql1234_2' is full which i believe is about temporary table
I have increased the size of tmp_table_size and max_heap_size to 3G yet no reprieve, the error keeps poping up.
Any ideas on how to tune the query

Answer 1

Add a 'LIMIT CLAUSE' to your query. It seems you have a very large result set.