Message : CPD433B
DISTINCT not valid when substitution character warning may be issued.
Message Long Text :
Cause . . . . . : The query specified that a warning should be issued if substitution characters are used when converting from one CCSID (Coded Character Set Identifier) to another CCSID. Also, either the query specified that distinct results be returned or referenced an SQL (Structured Query Language) view that specified that distinct results be returned. The combination of substitution character warning and distinct cannot be used when CCSID conversion for any I/O (input/output) field may use substitution characters.