Dandandan commented on code in PR #2885:
URL: https://github.com/apache/arrow-datafusion/pull/2885#discussion_r919263175
##########
datafusion/optimizer/src/optimizer.rs:
##########
@@ -44,15 +44,23 @@ pub struct OptimizerConfig {
/// Query execution start time that can be used to rewrite expressions
such as `now()`
/// to use a literal value instead
pub query_execution_start_time: DateTime<Utc>,
+ next_id: usize,
}
impl OptimizerConfig {
/// Create optimizer config
pub fn new() -> Self {
Self {
query_execution_start_time: chrono::Utc::now(),
+ next_id: 1,
}
}
+
+ pub fn next_id(&mut self) -> usize {
+ let id = self.next_id;
+ self.next_id += 1;
+ id
Review Comment:
```suggestion
self.cur_id += 1;
self.cur_id
```
And start cur_id at 0?
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