Fix collation difference in sqlserver input (#3786)

(cherry picked from commit a6d366f)

plugins/inputs/sqlserver/sqlserver.go

@@ -1116,30 +1116,30 @@ DECLARE @delayInterval char(8) = CONVERT(Char(8), DATEADD(SECOND, @secondsBetwee
 
 DECLARE @w1 TABLE
 (
-	WaitType nvarchar(64) NOT NULL,
+	WaitType nvarchar(64) collate SQL_Latin1_General_CP1_CI_AS NOT NULL,
 	WaitTimeInMs bigint NOT NULL,
 	WaitTaskCount bigint NOT NULL,
 	CollectionDate datetime NOT NULL
 )
 DECLARE @w2 TABLE
 (
-	WaitType nvarchar(64) NOT NULL,
+	WaitType nvarchar(64) collate SQL_Latin1_General_CP1_CI_AS NOT NULL,
 	WaitTimeInMs bigint NOT NULL,
 	WaitTaskCount bigint NOT NULL,
 	CollectionDate datetime NOT NULL
 )
 DECLARE @w3 TABLE
 (
-	WaitType nvarchar(64) NOT NULL
+	WaitType nvarchar(64) collate SQL_Latin1_General_CP1_CI_AS NOT NULL
 )
 DECLARE @w4 TABLE
 (
-	WaitType nvarchar(64) NOT NULL,
-	WaitCategory nvarchar(64) NOT NULL
+	WaitType nvarchar(64) collate SQL_Latin1_General_CP1_CI_AS NOT NULL,
+	WaitCategory nvarchar(64) collate SQL_Latin1_General_CP1_CI_AS NOT NULL
 )
 DECLARE @w5 TABLE
 (
-	WaitCategory nvarchar(64) NOT NULL,
+	WaitCategory nvarchar(64) collate SQL_Latin1_General_CP1_CI_AS NOT NULL,
 	WaitTimeInMs bigint NOT NULL,
 	WaitTaskCount bigint NOT NULL
 )
@@ -1380,12 +1380,12 @@ INSERT @w4 (WaitType, WaitCategory) VALUES ('ABR', 'OTHER') ,
 
 INSERT @w1 (WaitType, WaitTimeInMs, WaitTaskCount, CollectionDate)
 SELECT
-  WaitType = wait_type
+  WaitType = wait_type  collate SQL_Latin1_General_CP1_CI_AS
 , WaitTimeInMs = SUM(wait_time_ms)
 , WaitTaskCount = SUM(waiting_tasks_count)
 , CollectionDate = GETDATE()
 FROM sys.dm_os_wait_stats
-WHERE [wait_type] NOT IN
+WHERE [wait_type]  collate SQL_Latin1_General_CP1_CI_AS NOT IN
 (
 	SELECT WaitType FROM  @w3
 )
@@ -1396,12 +1396,12 @@ WAITFOR DELAY @delayInterval;
 
 INSERT @w2 (WaitType, WaitTimeInMs, WaitTaskCount, CollectionDate)
 SELECT
-  WaitType = wait_type
+  WaitType = wait_type  collate SQL_Latin1_General_CP1_CI_AS
 , WaitTimeInMs = SUM(wait_time_ms)
 , WaitTaskCount = SUM(waiting_tasks_count)
 , CollectionDate = GETDATE()
 FROM sys.dm_os_wait_stats
-WHERE [wait_type] NOT IN
+WHERE [wait_type]  collate SQL_Latin1_General_CP1_CI_AS NOT IN
 (
 	SELECT WaitType FROM  @w3
 )