jayzhan211 commented on code in PR #14032:
URL: https://github.com/apache/datafusion/pull/14032#discussion_r1907051681
##########
datafusion/physical-plan/src/memory.rs:
##########
@@ -174,6 +177,93 @@ impl MemoryExec {
})
}
+ /// Create a new execution plan from a list of constant values
(`ValuesExec`)
+ pub fn try_new_as_values(
+ schema: SchemaRef,
+ data: Vec<Vec<Arc<dyn PhysicalExpr>>>,
+ ) -> Result<Self> {
+ if data.is_empty() {
+ return plan_err!("Values list cannot be empty");
+ }
+
+ let n_row = data.len();
+ let n_col = schema.fields().len();
+
+ let placeholder_schema = Arc::new(Schema::empty());
Review Comment:
```suggestion
// We have this single row batch as a placeholder to satisfy
evaluation argument
// and generate a single output row
let placeholder_schema = Arc::new(Schema::empty());
```
better keep the old comment here so we know why not empty batch
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