jayzhan211 commented on code in PR #11273:
URL: https://github.com/apache/datafusion/pull/11273#discussion_r1666732504
##########
datafusion/sql/src/expr/mod.rs:
##########
@@ -629,6 +630,41 @@ impl<'a, S: ContextProvider> SqlToRel<'a, S> {
}
}
+ /// Parses a struct(..) expression and plans it creation
+ fn parse_struct(
+ &self,
+ schema: &DFSchema,
+ planner_context: &mut PlannerContext,
+ values: Vec<sqlparser::ast::Expr>,
+ fields: Vec<StructField>,
+ ) -> Result<Expr> {
+ if !fields.is_empty() {
+ return not_impl_err!("Struct fields are not supported yet");
+ }
+ let is_named_struct = values
+ .iter()
+ .any(|value| matches!(value, SQLExpr::Named { .. }));
+
+ let mut create_struct_args = if is_named_struct {
+ self.create_named_struct_expr(values, schema, planner_context)?
+ } else {
+ self.create_struct_expr(values, schema, planner_context)?
+ };
+
+ for planner in self.planners.iter() {
+ let result = if is_named_struct {
+ planner.plan_create_named_struct(create_struct_args)?
+ } else {
+ planner.plan_create_struct(create_struct_args)?
Review Comment:
Can we have one StructPlan that returns `struct` or `named_struct` based on
the values?
```rust
let mut create_struct_args = if is_named_struct {
self.create_named_struct_expr(values, schema, planner_context)?
} else {
self.create_struct_expr(values, schema, planner_context)?
};
```
The logic here should be inside planner
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