Hello!
On Thursday 01 April 2010 18:04:10 Adam DeVita wrote:
> How does
> $ time sqlite3 test32k.db "select count(1) from role_exist"
> perform?
Equal to count(*).
Best regards, Alexey Pechnikov.
http://pechnikov.tel/
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On Thu, Apr 01, 2010 at 10:44:51AM -0400, Pavel Ivanov scratched on the wall:
> > So 58s for count of all records! The count(*) for all records may use
> > the counter from primary key b-tree, is't it?
>
> What does this mean? I believe there's no any kind of counters in
> b-tree. If you meant
> So 58s for count of all records! The count(*) for all records may use
> the counter from primary key b-tree, is't it?
What does this mean? I believe there's no any kind of counters in
b-tree. If you meant counter from auto-increment key then how about
gaps in the middle?
Pavel
On Thu, Apr 1,
How does
$ time sqlite3 test32k.db "select count(1) from role_exist"
perform?
On Thu, Apr 1, 2010 at 5:52 AM, Alexey Pechnikov wrote:
> Hello!
>
> $ time sqlite3 test32k.db "select count(*) from role_exist"
> 1250
>
> real0m58.908s
> user0m0.056s
> sys
Hello!
$ time sqlite3 test32k.db "select count(*) from role_exist"
1250
real0m58.908s
user0m0.056s
sys 0m0.864s
$ sqlite3 test32k.db
SQLite version 3.6.23
sqlite> .schema role_exist
CREATE TABLE role_exist (
id INTEGER PRIMARY KEY,
uid BLOB NOT NULL DEFAULT (randomblob(16))
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