data duplicator works in simple case

plugins/dbgate-plugin-mssql/src/frontend/MsSqlDumper.js

@@ -155,6 +155,10 @@ class MsSqlDumper extends SqlDumper {
         newname
       );
   }
+
+  selectScopeIdentity() {
+    this.put('^select ^scope_identity()');
+  }
 }
 
 MsSqlDumper.prototype.renameView = MsSqlDumper.prototype.renameObject;

plugins/dbgate-plugin-mysql/src/frontend/Dumper.js

@@ -89,6 +89,10 @@ class Dumper extends SqlDumper {
   putByteArrayValue(value) {
     this.putRaw(`unhex('${arrayToHexString(value)}')`);
   }
+
+  selectScopeIdentity() {
+    this.put('^select ^last_insert_id()')
+  }
 }
 
 module.exports = Dumper;

plugins/dbgate-plugin-postgres/src/frontend/Dumper.js

@@ -99,6 +99,14 @@ class Dumper extends SqlDumper {
   putByteArrayValue(value) {
     this.putRaw(`e'\\\\x${arrayToHexString(value)}'`);
   }
+
+  selectScopeIdentity(table) {
+    this.put(
+      "^SELECT currval(pg_get_serial_sequence('%f','%s'))",
+      table,
+      table.columns?.find(x => x.autoIncrement)?.[0]?.columnName
+    );
+  }
 }
 
 module.exports = Dumper;

plugins/dbgate-plugin-sqlite/src/frontend/Dumper.js

@@ -16,6 +16,10 @@ class Dumper extends SqlDumper {
   truncateTable(name) {
     this.putCmd('^delete ^from %f', name);
   }
+
+  selectScopeIdentity() {
+    this.put('^select last_insert_rowid()')
+  }
 }
 
 module.exports = Dumper;