Any difference between LOWER and LCASE

[mahender bigdata]

Hi Team,

Is there any difference between LOWER and LCASE functions in Hive. For 
one of the query, when we are using LOWER in where condition, it is 
failing to match record. When we changed to LCASE, it started matching. 
I surprised to see differences in LOWER and LCASE. Can any one know why 
there 2 function for same functionality. Is there any thing to do with 
any special or Unicode characters where Lower and LCASE differs in 
functionality


/MS