From f7e1240385af72709fd643b5ceedeb4ae787dfb3 Mon Sep 17 00:00:00 2001
From: Lorenz Meyer <lm@bible.ch>
Date: Thu, 9 May 2019 15:30:38 +0200
Subject: [PATCH] Export names of default constraints.

---
 src/generators/mssql.ts   | 3 +++
 src/queries/interfaces.ts | 1 +
 src/queries/mssql.ts      | 3 ++-
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/generators/mssql.ts b/src/generators/mssql.ts
index 35c5ba7..258afcc 100644
--- a/src/generators/mssql.ts
+++ b/src/generators/mssql.ts
@@ -526,6 +526,9 @@ export default class MSSQLGenerator {
     output += item.is_nullable ? ' NULL' : ' NOT NULL';
 
     if (item.definition) {
+      if (item.default_name) {
+          output += ` CONSTRAINT [${item.default_name}]`;
+      }
       output += ` DEFAULT${item.definition}`;
     }
 
diff --git a/src/queries/interfaces.ts b/src/queries/interfaces.ts
index 511dc1a..2e770a5 100644
--- a/src/queries/interfaces.ts
+++ b/src/queries/interfaces.ts
@@ -63,6 +63,7 @@ export interface SqlColumn {
   seed_value: number;
   increment_value: number;
   formula: string;
+  default_name: string;
 }
 
 /**
diff --git a/src/queries/mssql.ts b/src/queries/mssql.ts
index 17725a1..a586da0 100644
--- a/src/queries/mssql.ts
+++ b/src/queries/mssql.ts
@@ -47,7 +47,8 @@ export const columnsRead = `
     ic.is_identity,
     ic.seed_value,
     ic.increment_value,
-    cc.definition AS [formula]
+    cc.definition AS [formula],
+    dc.name as default_name
   FROM
     sys.columns c
     JOIN sys.types tp ON c.user_type_id = tp.user_type_id