Update postgres.go

add column name to the result of function query.

bindings/postgres/postgres.go

@@ -186,13 +186,21 @@ func (p *Postgres) query(ctx context.Context, sql string, args ...any) (result [
 		return nil, fmt.Errorf("error executing query: %w", err)
 	}
 
+    cols := rows.FieldDescriptions()
+
 	rs := make([]any, 0)
 	for rows.Next() {
 		val, rowErr := rows.Values()
 		if rowErr != nil {
 			return nil, fmt.Errorf("error reading result '%v': %w", rows.Err(), rowErr)
 		}
-		rs = append(rs, val) //nolint:asasalint
+
+		r := map[string]interface{}{}
+		for i, col := range cols {
+			r[string(col.Name)] = val[i]
+		}
+
+		rs = append(rs, r) //nolint:asasalint
 	}
 
 	result, err = json.Marshal(rs)