Dan, I will look into what the code is doing. thanks, Mamta
On 9/4/07, Daniel John Debrunner <[EMAIL PROTECTED]> wrote: > > Rule 5) in the collation wiki page says: > ------------------------------------------------------------------- > 5)Result character string types from UPPER, LOWER, TRIM(LTRIM, RTRIM), > SUBSTR will have the same collation as their operand. This comes from > SQL spec Section 6.29 <string value function> Syntax Rules 8, 8, 11d, 4 > respectively). The collation derivation will be implicit. > ------------------------------------------------------------------- > > http://wiki.apache.org/db-derby/BuiltInLanguageBasedOrderingDERBY-1478 > > I don't see where the last sentence comes from: "The collation > derivation will be implicit.". > > That doesn't seem to be correct, if the operand has collation explicit > or none shouldn't that be carried through to the result of the character > string function? The rules in 6.29 that are quoted by 5) above just say > the type is the type of the operand which includes the derivation, > right? I don't see anything in 6.29 about asserting implicit derivation. > > I haven't looked at the code to see what is implemented, just wanted to > raise this as a possible issue. > > Dan. >
