fix: mark primary key auto-increment only if column type is TINYINT SMALLINT MEDIUMINT INT BIGINT

Signed-off-by: Muhammad Aaqil <[email protected]>

Author: aaqilniz

lib/migration.js

@@ -628,7 +628,13 @@ function mixinMigration(MySQL, mysql) {
       if (pks.length === 1) {
         const idName = this.idName(model);
         const idProp = this.getModelDefinition(model).properties[idName];
-        if (idProp.generated) {
+        const idColumnType = this.columnDataType(model, idName);
+        if (idProp.generated && (
+          idColumnType === 'TINYINT' ||
+          idColumnType === 'SMALLINT' ||
+          idColumnType === 'MEDIUMINT' ||
+          idColumnType === 'INT' ||
+          idColumnType === 'BIGINT')) {
           sql.push(self.columnEscaped(model, idName) + ' ' +
             self.buildColumnDefinition(model, idName) + ' AUTO_INCREMENT PRIMARY KEY');
         } else {