From fdecef7e7895afa626be631f1413cd6390b4d147 Mon Sep 17 00:00:00 2001
From: Jan Prochazka <jan.prochazka@gmail.com>
Date: Sun, 4 Sep 2022 10:04:24 +0200
Subject: [PATCH] analyse computed columns on ms sql #354

---
 .../dbgate-plugin-mssql/src/backend/MsSqlAnalyser.js  | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/plugins/dbgate-plugin-mssql/src/backend/MsSqlAnalyser.js b/plugins/dbgate-plugin-mssql/src/backend/MsSqlAnalyser.js
index bec92558..76f0f91d 100644
--- a/plugins/dbgate-plugin-mssql/src/backend/MsSqlAnalyser.js
+++ b/plugins/dbgate-plugin-mssql/src/backend/MsSqlAnalyser.js
@@ -24,6 +24,15 @@ function objectTypeToField(type) {
   }
 }
 
+function simplifyComutedExpression(expr) {
+  if (expr) {
+    while (expr.startsWith('(') && expr.endsWith(')')) {
+      expr = expr.slice(1, -1);
+    }
+  }
+  return expr;
+}
+
 function getColumnInfo({
   isNullable,
   isIdentity,
@@ -34,6 +43,7 @@ function getColumnInfo({
   numericScale,
   defaultValue,
   defaultConstraint,
+  computedExpression,
 }) {
   let fullDataType = dataType;
   if (charMaxLength && isTypeString(dataType)) {
@@ -49,6 +59,7 @@ function getColumnInfo({
     autoIncrement: !!isIdentity,
     defaultValue,
     defaultConstraint,
+    computedExpression: simplifyComutedExpression(computedExpression),
   };
 }