mysql - Is using rand() in an INSERT statement also slow? -

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the mysql rand() function notoriously slow in select statements, true insert statements well? insert new row random number in following way: 

insert new_table (field1, field2, randomfield) values ('hello', 'ola', rand());

will rand() function become slow table gets larger , larger?

will rand() function become slow table gets larger , larger?

no. rand() getting slower on big tables when used in conjunction order by or where. in example, making one call rand() not performance problem.


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