mbutrovich commented on code in PR #1756:
URL: https://github.com/apache/datafusion-comet/pull/1756#discussion_r2098980947
##########
native/core/src/execution/planner.rs:
##########
@@ -1108,6 +1108,44 @@ impl PhysicalPlanner {
.map(|expr| self.create_expr(expr,
Arc::clone(&required_schema)))
.collect();
+ let default_values: Option<HashMap<usize, ScalarValue>> = if
!scan
+ .default_values
+ .is_empty()
+ {
+ // We have default values. Extract the two lists (same
length) of values and
+ // indexes in the schema, and then create a HashMap to use
in the SchemaMapper.
+ let default_values: Vec<ScalarValue> = scan
+ .default_values
+ .iter()
+ .map(|expr| {
+ let literal = self
+ .create_expr(expr,
Arc::clone(&required_schema))
+ .unwrap();
+ literal
+ .as_any()
+ .downcast_ref::<DataFusionLiteral>()
+ .ok_or_else(|| {
+ GeneralError("Expected literal of default
value.".to_string())
+ })
+ .map(|literal| literal.value().clone())
+ .unwrap()
+ })
+ .collect::<Vec<ScalarValue>>();
Review Comment:
Looks good, thank you for the suggestion!
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