jonahgao commented on code in PR #13242:
URL: https://github.com/apache/datafusion/pull/13242#discussion_r1830322644
##########
datafusion/core/src/execution/session_state.rs:
##########
@@ -906,6 +910,29 @@ impl SessionState {
let udtf = self.table_functions.remove(name);
Ok(udtf.map(|x| x.function().clone()))
}
+
+ /// Store the logical plan and the parameter types of a prepared statement.
+ pub(crate) fn store_prepared(
+ &mut self,
+ name: String,
+ data_types: Vec<DataType>,
+ plan: Arc<LogicalPlan>,
+ ) -> datafusion_common::Result<()> {
+ match self.prepared_plans.entry(name) {
+ Entry::Vacant(e) => {
+ e.insert(Arc::new(PreparedPlan { data_types, plan }));
+ Ok(())
+ }
+ Entry::Occupied(e) => {
+ exec_err!("Prepared statement '{}' already exists", e.key())
Review Comment:
I plan to implement DEALLOCATE in next PR.
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