From 4182132dde12a38ed8cc26c29328bea4a5865c21 Mon Sep 17 00:00:00 2001
From: Jan Prochazka <jan.prochazka@gmail.com>
Date: Thu, 21 Apr 2022 09:48:21 +0200
Subject: [PATCH] mssql: fix (varchar(-1) => varchar(max))

---
 plugins/dbgate-plugin-mssql/src/backend/MsSqlAnalyser.js | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/plugins/dbgate-plugin-mssql/src/backend/MsSqlAnalyser.js b/plugins/dbgate-plugin-mssql/src/backend/MsSqlAnalyser.js
index 464d1cbf9..dfea07e99 100644
--- a/plugins/dbgate-plugin-mssql/src/backend/MsSqlAnalyser.js
+++ b/plugins/dbgate-plugin-mssql/src/backend/MsSqlAnalyser.js
@@ -36,9 +36,12 @@ function getColumnInfo({
   defaultConstraint,
 }) {
   let fullDataType = dataType;
-  if (charMaxLength && isTypeString(dataType)) fullDataType = `${dataType}(${charMaxLength})`;
-  if (numericPrecision && numericScale && isTypeNumeric(dataType))
+  if (charMaxLength && isTypeString(dataType)) {
+    fullDataType = `${dataType}(${charMaxLength < 0 ? 'MAX' : charMaxLength})`;
+  }
+  if (numericPrecision && numericScale && isTypeNumeric(dataType)) {
     fullDataType = `${dataType}(${numericPrecision},${numericScale})`;
+  }
   return {
     columnName,
     dataType: fullDataType,