fix: properly parse trigger with instead of (#383)

Author: psteinroe

crates/pgt_statement_splitter/src/lib.rs

@@ -180,6 +180,22 @@ mod tests {
         Tester::from("/* this is a test */\nselect 1").expect_statements(vec!["select 1"]);
     }
 
+    #[test]
+    fn trigger_instead_of() {
+        Tester::from(
+            "CREATE OR REPLACE TRIGGER my_trigger
+       INSTEAD OF INSERT ON my_table
+       FOR EACH ROW
+       EXECUTE FUNCTION my_table_trigger_fn();",
+        )
+        .expect_statements(vec![
+            "CREATE OR REPLACE TRIGGER my_trigger
+       INSTEAD OF INSERT ON my_table
+       FOR EACH ROW
+       EXECUTE FUNCTION my_table_trigger_fn();",
+        ]);
+    }
+
     #[test]
     fn with_check() {
         Tester::from("create policy employee_insert on journey_execution for insert to authenticated with check ((select private.organisation_id()) = organisation_id);")

crates/pgt_statement_splitter/src/parser/common.rs

@@ -236,6 +236,8 @@ pub(crate) fn unknown(p: &mut Parser, exclude: &[SyntaxKind]) {
                         SyntaxKind::For,
                         // e.g. on insert or delete
                         SyntaxKind::Or,
+                        // e.g. INSTEAD OF INSERT
+                        SyntaxKind::Of,
                         // for create rule
                         SyntaxKind::On,
                         // for create rule