func (this *GenericTranslator) Translate(dmlType db.DmlType, token db.Tokener) string {
tag := token.GetOperator()
handle := this.tokens[tag]
if handle != nil {
return handle(dmlType, token, this.overrider)
}
panic("token " + tag + " is unknown")
}
func (this *GenericTranslator) ColumnAlias(token db.Tokener, position int) string {
alias := token.GetAlias()
if alias == "" {
if ch, ok := token.(*db.ColumnHolder); ok {
alias = ch.GetTableAlias() + "_" + ch.GetColumn().GetName()
} else if db.TOKEN_ALIAS != token.GetOperator() {
alias = "COL_" + strconv.Itoa(position)
}
} else {
//alias += "_" + strconv.Itoa(position) // avoids collision with reserved words
alias = token.GetTableAlias() + "_" + alias
}
return alias
}