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select sleep();
ERROR 42000: Incorrect parameter count in the call to native function 'sleep'
select sleep(10,10);
ERROR 42000: Incorrect parameter count in the call to native function 'sleep'
select sleep('a');
sleep('a')
NULL
Warnings:
Warning 1292 Truncated incorrect DOUBLE value: 'a'
show warnings;
Level Code Message
Warning 1292 Truncated incorrect DOUBLE value: 'a'
select sleep(0.001);
sleep(0.001)
0
select sleep(0.01);
sleep(0.01)
0
select sleep(0.02);
sleep(0.02)
0
select sleep(0.02);
sleep(0.02)
0
select sleep(0.13);
sleep(0.13)
0
select sleep(0);
sleep(0)
NULL
select sleep(1);
sleep(1)
0
select sleep(1.5);
sleep(1.5)
0
select sleep(2);
sleep(2)
0
select sleep(2.23);
sleep(2.23)
0
select sleep(2.9);
sleep(2.9)
0
select sleep(5);
sleep(5)
0
select sleep(5.7);
sleep(5.7)
0
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