mysql between operator with dates

Question

select '2011-02-29' BETWEEN '2011-02-01' AND '2011-03-03'?

this is returning 1. I think between doesn't consider leap year. I want your view on this?

[EDIT]
SELECT DATE( '2010-04-31' ) is returning NULL;
But select str_to_date('2010-04-31', '%Y-%m-%d') is retuning date.

Why?

Thanks Venu

Answer 1

you need to cast it to date like:

SELECT DATE('2011-02-29') BETWEEN DATE('2011-02-01') AND DATE('2011-03-03')

from the site :

For best results when using BETWEEN with date or time values, use CAST() to explicitly convert the values to the desired data type. Examples: If you compare a DATETIME to two DATE values, convert the DATE values to DATETIME values. If you use a string constant such as '2001-1-1' in a comparison to a DATE, cast the string to a DATE.