fix(sqlserver): omit display width for integer types

crates/dbx-core/src/table_structure_sql/column_format.rs

@@ -143,6 +143,11 @@ pub(super) fn normalize_column_data_type(dialect: StructureDialect, data_type: &
         return base_type.to_string();
     }
 
+    if dialect == StructureDialect::SqlServer && is_sqlserver_lengthless_type(base_type) {
+        // SQL Server exact integer and legacy LOB types do not accept MySQL-style display widths.
+        return base_type.to_string();
+    }
+
     if is_temporal_precision_type(dialect, base_type) {
         return if is_valid_temporal_precision(params, dialect) {
             format!("{base_type}({params})")
@@ -180,6 +185,32 @@ fn is_oracle_lengthless_type(base_type: &str) -> bool {
     )
 }
 
+fn is_sqlserver_lengthless_type(base_type: &str) -> bool {
+    let normalized = base_type.split_whitespace().collect::<Vec<_>>().join(" ").to_ascii_lowercase();
+    matches!(
+        normalized.as_str(),
+        "bigint"
+            | "bit"
+            | "date"
+            | "datetime"
+            | "image"
+            | "int"
+            | "integer"
+            | "money"
+            | "ntext"
+            | "real"
+            | "smalldatetime"
+            | "smallint"
+            | "smallmoney"
+            | "sql_variant"
+            | "text"
+            | "timestamp"
+            | "tinyint"
+            | "uniqueidentifier"
+            | "xml"
+    )
+}
+
 fn normalize_mysql_numeric_attribute_type(base_type: &str, params: &str) -> Option<String> {
     let mut parts: Vec<&str> = base_type.split_whitespace().collect();
     let type_name = parts.first().copied()?.to_ascii_lowercase();

crates/dbx-core/src/table_structure_sql/tests.rs

@@ -1269,6 +1269,28 @@ fn builds_sql_server_quoted_column_and_index_statements() {
     );
 }
 
+#[test]
+fn sqlserver_strips_mysql_display_width_from_fixed_integer_types() {
+    let mut id = column("id");
+    id.data_type = "int(11)".to_string();
+    id.is_nullable = false;
+
+    let result = build_table_structure_change_sql(TableStructureSqlOptions {
+        database_type: Some(DatabaseType::SqlServer),
+        schema: Some("dbo".to_string()),
+        table_name: "users".to_string(),
+        columns: vec![id],
+        indexes: Vec::new(),
+        foreign_keys: Vec::new(),
+        triggers: Vec::new(),
+        table_comment: None,
+        original_table_comment: None,
+    });
+
+    assert_eq!(result.warnings, Vec::<String>::new());
+    assert_eq!(result.statements, vec!["ALTER TABLE [dbo].[users] ADD [id] int NOT NULL;"]);
+}
+
 #[test]
 fn sqlserver_default_changes_drop_old_constraints_with_isolated_batches() {
     let mut sku = column("sku");