From 24e669d1e6ae109a4d163b342c7fb501b949074a Mon Sep 17 00:00:00 2001
From: Guodong Jin <guod.jin@gmail.com>
Date: Mon, 16 Dec 2024 17:52:13 +0800
Subject: [PATCH] Fix incorrect set of sequence val after exporting database
 (#4636)

* fix incorrect set of sequence val after exporting database

* add test case
---
 .../catalog_entry/sequence_catalog_entry.cpp     |  3 ++-
 test/test_files/copy/export_import_db.test       | 16 ++++++++++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/src/catalog/catalog_entry/sequence_catalog_entry.cpp b/src/catalog/catalog_entry/sequence_catalog_entry.cpp
index 250e226b28d..e2fc103ec16 100644
--- a/src/catalog/catalog_entry/sequence_catalog_entry.cpp
+++ b/src/catalog/catalog_entry/sequence_catalog_entry.cpp
@@ -157,9 +157,10 @@ std::unique_ptr<SequenceCatalogEntry> SequenceCatalogEntry::deserialize(
 
 std::string SequenceCatalogEntry::toCypher(main::ClientContext* /*clientContext*/) const {
     return stringFormat(
+        "DROP SEQUENCE IF EXISTS {};\n"
         "CREATE SEQUENCE IF NOT EXISTS {} START {} INCREMENT {} MINVALUE {} MAXVALUE {} {} CYCLE;\n"
         "RETURN nextval('{}');",
-        getName(), sequenceData.currVal, sequenceData.increment, sequenceData.minValue,
+        getName(), getName(), sequenceData.currVal, sequenceData.increment, sequenceData.minValue,
         sequenceData.maxValue, sequenceData.cycle ? "" : "NO", getName());
 }
 
diff --git a/test/test_files/copy/export_import_db.test b/test/test_files/copy/export_import_db.test
index 4eeb265f4b1..ee1981c2077 100644
--- a/test/test_files/copy/export_import_db.test
+++ b/test/test_files/copy/export_import_db.test
@@ -181,6 +181,22 @@ Imported database successfully.
 ---- 2
 0
 1
+-STATEMENT CREATE (o:twoserial {prop: "Dan2"})
+---- ok
+-STATEMENT CREATE (o:oneserial)
+---- ok
+-STATEMENT MATCH (o:twoserial) RETURN o.*;
+---- 5
+0|Alice
+1|Bob
+2|Carol
+3|Dan
+4|Dan2
+-STATEMENT MATCH (o:oneserial) RETURN o.*;
+---- 3
+0
+1
+2
 
 -CASE DocExportImportExampleCSV
 -SKIP_WASM