aalexandrov commented on code in PR #11456:
URL: https://github.com/apache/datafusion/pull/11456#discussion_r1677146980
##########
datafusion/sql/src/planner.rs:
##########
@@ -151,6 +155,29 @@ impl PlannerContext {
schema
}
+ // return a clone of the outer FROM schema
+ pub fn outer_from_schema(&self) -> Option<Arc<DFSchema>> {
+ self.outer_from_schema.clone()
+ }
+
+ /// sets the outer FROM schema, returning the existing one, if any
+ pub fn set_outer_from_schema(
+ &mut self,
+ mut schema: Option<DFSchemaRef>,
+ ) -> Option<DFSchemaRef> {
+ std::mem::swap(&mut self.outer_from_schema, &mut schema);
+ schema
+ }
+
+ /// extends the FROM schema, returning the existing one, if any
+ pub fn extend_outer_from_schema(&mut self, schema: &DFSchemaRef) ->
Result<()> {
+ self.outer_from_schema = match self.outer_from_schema.as_ref() {
+ Some(from_schema) => Some(Arc::new(from_schema.join(schema)?)),
Review Comment:
See [my comment
below](https://github.com/apache/datafusion/pull/11456/files#r1677146927).
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