MySQL: need help making a query faster
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I wrote a query that finds me records in discovery table that contain a needle from whitelisted (LIKE %needle%) and don't have a record in logs table (and some other easy to understand filtering):
SELECT * FROM (
SELECT discovery.id, discovery.resource AS url, discovery.event_datetime, whitelisted.keyword
FROM discovery
INNER JOIN whitelisted
ON discovery.`resource` LIKE concat('%', whitelisted.`keyword`, '%')
LEFT JOIN `logs`
ON `logs`.discovery_id = discovery.id
WHERE
discovery.event_datetime >= NOW()
AND
discovery.provider = 'XXX'
AND
`logs`.id IS NULL
AND
discovery.resource NOT LIKE '%SOMETHING-TO-EXCLUDE%'
LIMIT 0, 20
) logless_resources
GROUP BY logless_resources.url
ORDER BY logless_resources.event_datetime ASC
discovery table: 143k rows
- id UNSIGNED INT AI PRIMARY
- resource VARCHAR(1024) INDEX
- provider ENUM
- event_datetime DATETIME
- created_at DATETIME
whitelisted table: 535 rows (not thousands, just 0.5k)
- id UNSIGNED INT AI PRIMARY
- keyword VARCHAR(128) INDEX
- provider ENUM
- created_at DATETIME
logs: 585k rows
- id UNSIGNED INT AI PRIMARY
- discovery_id UNSIGNED INT FK to discovery.id
Right now this takes 90 seconds - can it be made faster?
mysql optimization mysql-5.7
asked 7 mins ago
Nino ŠkopacNino Škopac
1012
New contributor
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add a comment |
0
I wrote a query that finds me records in discovery table that contain a needle from whitelisted (LIKE %needle%) and don't have a record in logs table (and some other easy to understand filtering):
SELECT * FROM (
SELECT discovery.id, discovery.resource AS url, discovery.event_datetime, whitelisted.keyword
FROM discovery
INNER JOIN whitelisted
ON discovery.`resource` LIKE concat('%', whitelisted.`keyword`, '%')
LEFT JOIN `logs`
ON `logs`.discovery_id = discovery.id
WHERE
discovery.event_datetime >= NOW()
AND
discovery.provider = 'XXX'
AND
`logs`.id IS NULL
AND
discovery.resource NOT LIKE '%SOMETHING-TO-EXCLUDE%'
LIMIT 0, 20
) logless_resources
GROUP BY logless_resources.url
ORDER BY logless_resources.event_datetime ASC
discovery table: 143k rows
- id UNSIGNED INT AI PRIMARY
- resource VARCHAR(1024) INDEX
- provider ENUM
- event_datetime DATETIME
- created_at DATETIME
whitelisted table: 535 rows (not thousands, just 0.5k)
- id UNSIGNED INT AI PRIMARY
- keyword VARCHAR(128) INDEX
- provider ENUM
- created_at DATETIME
logs: 585k rows
- id UNSIGNED INT AI PRIMARY
- discovery_id UNSIGNED INT FK to discovery.id
Right now this takes 90 seconds - can it be made faster?
mysql optimization mysql-5.7
asked 7 mins ago
Nino ŠkopacNino Škopac
1012
New contributor
Nino Škopac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
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0
I wrote a query that finds me records in discovery table that contain a needle from whitelisted (LIKE %needle%) and don't have a record in logs table (and some other easy to understand filtering):
SELECT * FROM (
SELECT discovery.id, discovery.resource AS url, discovery.event_datetime, whitelisted.keyword
FROM discovery
INNER JOIN whitelisted
ON discovery.`resource` LIKE concat('%', whitelisted.`keyword`, '%')
LEFT JOIN `logs`
ON `logs`.discovery_id = discovery.id
WHERE
discovery.event_datetime >= NOW()
AND
discovery.provider = 'XXX'
AND
`logs`.id IS NULL
AND
discovery.resource NOT LIKE '%SOMETHING-TO-EXCLUDE%'
LIMIT 0, 20
) logless_resources
GROUP BY logless_resources.url
ORDER BY logless_resources.event_datetime ASC
discovery table: 143k rows
- id UNSIGNED INT AI PRIMARY
- resource VARCHAR(1024) INDEX
- provider ENUM
- event_datetime DATETIME
- created_at DATETIME
whitelisted table: 535 rows (not thousands, just 0.5k)
- id UNSIGNED INT AI PRIMARY
- keyword VARCHAR(128) INDEX
- provider ENUM
- created_at DATETIME
logs: 585k rows
- id UNSIGNED INT AI PRIMARY
- discovery_id UNSIGNED INT FK to discovery.id
Right now this takes 90 seconds - can it be made faster?
mysql optimization mysql-5.7
asked 7 mins ago
Nino ŠkopacNino Škopac
1012
New contributor
Nino Škopac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I wrote a query that finds me records in discovery table that contain a needle from whitelisted (LIKE %needle%) and don't have a record in logs table (and some other easy to understand filtering):
SELECT * FROM (
SELECT discovery.id, discovery.resource AS url, discovery.event_datetime, whitelisted.keyword
FROM discovery
INNER JOIN whitelisted
ON discovery.`resource` LIKE concat('%', whitelisted.`keyword`, '%')
LEFT JOIN `logs`
ON `logs`.discovery_id = discovery.id
WHERE
discovery.event_datetime >= NOW()
AND
discovery.provider = 'XXX'
AND
`logs`.id IS NULL
AND
discovery.resource NOT LIKE '%SOMETHING-TO-EXCLUDE%'
LIMIT 0, 20
) logless_resources
GROUP BY logless_resources.url
ORDER BY logless_resources.event_datetime ASC
discovery table: 143k rows
- id UNSIGNED INT AI PRIMARY
- resource VARCHAR(1024) INDEX
- provider ENUM
- event_datetime DATETIME
- created_at DATETIME
whitelisted table: 535 rows (not thousands, just 0.5k)
- id UNSIGNED INT AI PRIMARY
- keyword VARCHAR(128) INDEX
- provider ENUM
- created_at DATETIME
logs: 585k rows
- id UNSIGNED INT AI PRIMARY
- discovery_id UNSIGNED INT FK to discovery.id
Right now this takes 90 seconds - can it be made faster?
mysql optimization mysql-5.7
mysql optimization mysql-5.7
asked 7 mins ago
Nino ŠkopacNino Škopac
1012
New contributor
Nino Škopac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 7 mins ago
Nino ŠkopacNino Škopac
1012
New contributor
Nino Škopac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 7 mins ago
Nino ŠkopacNino Škopac
1012
New contributor
Nino Škopac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 7 mins ago
Nino ŠkopacNino Škopac
1012
asked 7 mins ago
Nino ŠkopacNino Škopac
1012
1012
New contributor
Nino Škopac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Nino Škopac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Nino Škopac is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
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