Mixing
How can I optimize this further?
My table has approx. 121,246,211 rows. The records are simple page impression information.
Here is the schema:
create table stat_page
(
id int auto_increment primary key,
pageId int not null,
timestamp int not null
)
collate = utf8_unicode_ci;
create index pageIdIndex
on stat_page (pageId);
create index timestampIndex
on stat_page (timestamp);
This query takes 15 seconds:
select count(*)
from stat_page
where `timestamp` > 1543622400;
This query takes nearly 7 minutes:
select count(*)
from stat_page
where `timestamp` > 1543622400
and pageId = 87;
I thought I indexed the right things; is the table just too large? Does anyone have a suggestion as to how to get information from this table faster?
mysql sql
asked Jan 2 at 22:09
dataskillsdataskills
436612
add a comment |
My table has approx. 121,246,211 rows. The records are simple page impression information.
Here is the schema:
create table stat_page
(
id int auto_increment primary key,
pageId int not null,
timestamp int not null
)
collate = utf8_unicode_ci;
create index pageIdIndex
on stat_page (pageId);
create index timestampIndex
on stat_page (timestamp);
This query takes 15 seconds:
select count(*)
from stat_page
where `timestamp` > 1543622400;
This query takes nearly 7 minutes:
select count(*)
from stat_page
where `timestamp` > 1543622400
and pageId = 87;
I thought I indexed the right things; is the table just too large? Does anyone have a suggestion as to how to get information from this table faster?
mysql sql
asked Jan 2 at 22:09
dataskillsdataskills
436612
add a comment |
My table has approx. 121,246,211 rows. The records are simple page impression information.
Here is the schema:
create table stat_page
(
id int auto_increment primary key,
pageId int not null,
timestamp int not null
)
collate = utf8_unicode_ci;
create index pageIdIndex
on stat_page (pageId);
create index timestampIndex
on stat_page (timestamp);
This query takes 15 seconds:
select count(*)
from stat_page
where `timestamp` > 1543622400;
This query takes nearly 7 minutes:
select count(*)
from stat_page
where `timestamp` > 1543622400
and pageId = 87;
I thought I indexed the right things; is the table just too large? Does anyone have a suggestion as to how to get information from this table faster?
mysql sql
asked Jan 2 at 22:09
dataskillsdataskills
436612
My table has approx. 121,246,211 rows. The records are simple page impression information.
Here is the schema:
create table stat_page
(
id int auto_increment primary key,
pageId int not null,
timestamp int not null
)
collate = utf8_unicode_ci;
create index pageIdIndex
on stat_page (pageId);
create index timestampIndex
on stat_page (timestamp);
This query takes 15 seconds:
select count(*)
from stat_page
where `timestamp` > 1543622400;
This query takes nearly 7 minutes:
select count(*)
from stat_page
where `timestamp` > 1543622400
and pageId = 87;
I thought I indexed the right things; is the table just too large? Does anyone have a suggestion as to how to get information from this table faster?
mysql sql
mysql sql
asked Jan 2 at 22:09
dataskillsdataskills
436612
asked Jan 2 at 22:09
dataskillsdataskills
436612
asked Jan 2 at 22:09
dataskillsdataskills
436612
asked Jan 2 at 22:09
dataskillsdataskills
436612
asked Jan 2 at 22:09
dataskillsdataskills
436612
436612
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
The following index will improve the performance of that query:
create index ix1 on stat_page (pageId, timestamp);
This query benefits of this "composite" index.
answered Jan 2 at 22:10
The ImpalerThe Impaler
11.5k41441
1
@DStanley I think switching the order of the columns will improve the other query but not this one. This query has an equality (=) for the columnpageId, that should greatly benefit of this column to be placed in first place.
– The Impaler
Jan 2 at 22:35
Excellent, thank you, I don't know why I did not think of that. Cheers.
– dataskills
Jan 3 at 4:12
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
The following index will improve the performance of that query:
create index ix1 on stat_page (pageId, timestamp);
This query benefits of this "composite" index.
answered Jan 2 at 22:10
The ImpalerThe Impaler
11.5k41441
1
@DStanley I think switching the order of the columns will improve the other query but not this one. This query has an equality (=) for the columnpageId, that should greatly benefit of this column to be placed in first place.
– The Impaler
Jan 2 at 22:35
Excellent, thank you, I don't know why I did not think of that. Cheers.
– dataskills
Jan 3 at 4:12
add a comment |
The following index will improve the performance of that query:
create index ix1 on stat_page (pageId, timestamp);
This query benefits of this "composite" index.
answered Jan 2 at 22:10
The ImpalerThe Impaler
11.5k41441
1
@DStanley I think switching the order of the columns will improve the other query but not this one. This query has an equality (=) for the columnpageId, that should greatly benefit of this column to be placed in first place.
– The Impaler
Jan 2 at 22:35
Excellent, thank you, I don't know why I did not think of that. Cheers.
– dataskills
Jan 3 at 4:12
add a comment |
The following index will improve the performance of that query:
create index ix1 on stat_page (pageId, timestamp);
This query benefits of this "composite" index.
answered Jan 2 at 22:10
The ImpalerThe Impaler
11.5k41441
The following index will improve the performance of that query:
create index ix1 on stat_page (pageId, timestamp);
This query benefits of this "composite" index.
answered Jan 2 at 22:10
The ImpalerThe Impaler
11.5k41441
answered Jan 2 at 22:10
The ImpalerThe Impaler
11.5k41441
answered Jan 2 at 22:10
The ImpalerThe Impaler
11.5k41441
answered Jan 2 at 22:10
The ImpalerThe Impaler
11.5k41441
11.5k41441
1
@DStanley I think switching the order of the columns will improve the other query but not this one. This query has an equality (=) for the columnpageId, that should greatly benefit of this column to be placed in first place.
– The Impaler
Jan 2 at 22:35
Excellent, thank you, I don't know why I did not think of that. Cheers.
– dataskills
Jan 3 at 4:12
add a comment |
1
@DStanley I think switching the order of the columns will improve the other query but not this one. This query has an equality (=) for the columnpageId, that should greatly benefit of this column to be placed in first place.
– The Impaler
Jan 2 at 22:35
Excellent, thank you, I don't know why I did not think of that. Cheers.
– dataskills
Jan 3 at 4:12
1
1
@DStanley I think switching the order of the columns will improve the other query but not this one. This query has an equality (
=) for the column pageId, that should greatly benefit of this column to be placed in first place.– The Impaler
Jan 2 at 22:35
@DStanley I think switching the order of the columns will improve the other query but not this one. This query has an equality (
=) for the column pageId, that should greatly benefit of this column to be placed in first place.– The Impaler
Jan 2 at 22:35
Excellent, thank you, I don't know why I did not think of that. Cheers.
– dataskills
Jan 3 at 4:12
Excellent, thank you, I don't know why I did not think of that. Cheers.
– dataskills
Jan 3 at 4:12
add a comment |
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