treat bigint as string in msnodesqlv8 driver

Author: dhensby

CHANGELOG.txt

@@ -1,6 +1,10 @@
+Unreleased
+-------------------
+[fix] BigInt type in nodemsqlv8 now treated as strings in parity with the tedious drive ([#1387](https://github.com/tediousjs/node-mssql/pull/1387))
+
 v8.1.0 (2022-04-06)
 -------------------
-[new] MSSQL CLI tool now accepts some options to allow overriding config file ((#1381](https://github.com/tediousjs/node-mssql/pull/1381))
+[new] MSSQL CLI tool now accepts some options to allow overriding config file ([#1381](https://github.com/tediousjs/node-mssql/pull/1381))
 [fix] nodemsqlv8 driver tests working against Node 10 ([#1368](https://github.com/tediousjs/node-mssql/pull/1368))
 
 v8.0.2 (2022-02-07)

lib/msnodesqlv8/connection-pool.js

@@ -59,6 +59,8 @@ class ConnectionPool extends BaseConnectionPool {
           return reject(err)
         }
 
+        tds.setUseNumericString(true)
+
         IDS.add(tds, 'Connection', connedtionId)
         tds.setUseUTC(this.config.options.useUTC)
         debug('connection(%d): established', IDS.get(tds))

lib/msnodesqlv8/request.js

@@ -31,6 +31,7 @@ const castParameter = function (value, type) {
     case TYPES.NChar:
     case TYPES.Xml:
     case TYPES.Text:
+    case TYPES.BigInt:
     case TYPES.NText:
       if ((typeof value !== 'string') && !(value instanceof String)) {
         value = value.toString()
@@ -39,7 +40,6 @@ const castParameter = function (value, type) {
 
     case TYPES.Int:
     case TYPES.TinyInt:
-    case TYPES.BigInt:
     case TYPES.SmallInt:
       if ((typeof value !== 'number') && !(value instanceof Number)) {
         value = parseInt(value)