DRG-13310: index owner does not have EXECUTE privilege on USER_LEXER stored procedure string

DRG-13310: index owner does not have EXECUTE privilege on USER_LEXER stored procedure string

Cause: user CTXSYS did not grant EXECUTE privilege on USER_LEXER stored procedure to the index owner

Action: user CTXSYS grant EXECUTE privilege on USER_LEXER stored procedure to index owner