fix: NPE when setting null value as enum

Author: tandemdude

README.md

@@ -62,12 +62,10 @@ You should ensure that the `sha256` value in your `sqlc.yaml` is correct for thi
 
 ## Planned Features
 
-- `MySQL` support
 - `SQLite` support
 - Improved parameter naming
 
 **Tentative:**
 
 - r2dbc support
-- Support for PostgreSQL enum types
 - copyfrom support where possible [ref](https://www.baeldung.com/jdbc-batch-processing)

internal/core/models.go

@@ -96,6 +96,9 @@ func (q QueryArg) BindStmt() string {
 	}
 
 	if q.JavaType.IsEnum {
+		if q.JavaType.IsNullable {
+			return fmt.Sprintf("stmt.setString(%d, %s == null ? null : %s.getValue());", q.Number, q.Name, q.Name)
+		}
 		return fmt.Sprintf("stmt.setString(%d, %s.getValue());", q.Number, q.Name)
 	}