File: bench_count_distinct.test

package info (click to toggle)
mysql-5.5 5.5.60-0%2Bdeb8u1
  • links: PTS, VCS
  • area: main
  • in suites: jessie
  • size: 201,012 kB
  • sloc: cpp: 648,063; ansic: 552,041; perl: 48,017; pascal: 25,099; sh: 15,065; yacc: 13,088; cs: 4,647; xml: 4,178; sql: 3,380; makefile: 1,368; lex: 639; awk: 54
file content (22 lines) | stat: -rw-r--r-- 416 bytes parent folder | download | duplicates (10) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
 
#
# Test of count(distinct ..)
#

--disable_warnings
drop table if exists t1;
--enable_warnings
create table t1(n int not null, key(n)) delay_key_write = 1;
let $1=100;
disable_query_log;
while ($1)
{
 eval insert into t1 values($1);
 eval insert into t1 values($1);
 dec $1;
}
enable_query_log;
select count(distinct n) from t1;
explain extended select count(distinct n) from t1;
drop table t1;

# End of 4.1 tests