Fix sequence deletion after nextval call

Author: Agaev Huseyn

tarantool/src/schema/sequence.rs

@@ -8,11 +8,11 @@ use crate::space::{Space, SystemSpace};
 pub fn drop_sequence(seq_id: u32) -> Result<(), Error> {
     schema::revoke_object_privileges("sequence", seq_id)?;
 
-    let sys_sequence: Space = SystemSpace::Sequence.into();
-    sys_sequence.delete(&(seq_id,))?;
-
     let sys_sequence_data: Space = SystemSpace::SequenceData.into();
     sys_sequence_data.delete(&(seq_id,))?;
 
+    let sys_sequence: Space = SystemSpace::Sequence.into();
+    sys_sequence.delete(&(seq_id,))?;
+
     Ok(())
 }

tests/run_tests.lua

@@ -33,6 +33,7 @@ box.once('bootstrap_tests', function()
     box.schema.user.grant('test_user', 'read,write,execute,create,drop', 'universe')
 
     box.schema.sequence.create('test_seq')
+    box.schema.sequence.create('test_drop_seq')
 
     box.schema.func.create('test_stored_proc')
     box.schema.func.create('test_schema_update')

tests/src/box.rs

@@ -754,6 +754,14 @@ pub fn sequence_set() {
     assert_eq!(seq.next().unwrap(), 100);
 }
 
+pub fn sequence_drop() {
+    let mut seq = Sequence::find("test_drop_seq").unwrap().unwrap();
+    assert_eq!(seq.next().unwrap(), 1);
+
+    tarantool::schema::sequence::drop_sequence(2).unwrap();
+    assert!(Sequence::find("test_drop_seq").unwrap().is_none())
+}
+
 pub fn space_create_opt_default() {
     let opts = SpaceCreateOptions::default();
 

tests/src/lib.rs

@@ -429,6 +429,7 @@ fn run_tests(cfg: TestConfig) -> Result<bool, io::Error> {
                 r#box::sequence_get_by_name,
                 r#box::sequence_iterate,
                 r#box::sequence_set,
+                r#box::sequence_drop,
                 r#box::space_create_opt_default,
                 r#box::space_create_opt_if_not_exists,
                 r#box::space_create_id_increment,