Unexpected BIGINT Conversion Behavior
Jun 11, 2007
I've recently been struggling with moving a bigint data result from a query into an SSIS variable through the Execute SQL Task. Now, I could just be doing this incorrectly, but I couldn't get it to work at all if I made the variable int64 in SSIS. So here's what I found:
1. bigint from the query into int64 SSIS variable doesn't work at all. It fails.
2. bigint from the query into string SSIS variable works. BUT, it truncates it. And it's a crazy result, at least to me. All of a sudden the number 840550000000000 becomes 8405500000. Now, that's a really unexpected result to me. It seems to me this is a pretty crazy result.
3. Now, if I cast the bigint to varchar in the query and put it into a string SSIS variable, it works perfectly.
Is this a bug? If not, how is this expected behavior? Or maybe I'm just nuts after hours of futzing with this.
Thanks,
Michael
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Apr 22, 2007
SQL Server 2000 SP4.Running the script below prints 'Unexpected':-----------------------------DECLARE @String AS varchar(1)SELECT @String = 'z'IF @String LIKE '[' + CHAR(32) + '-' + CHAR(255) + ']'PRINT 'Expected'ELSEPRINT 'Unexpected'-----------------------------If the @String variable is set to 'y' (or in fact any ANSI character otherthan 'z'), the result is 'Expected'. The comparison also evaluates asexpected if CHAR(255) is replaced with CHAR(254). The server collation, ifthat matters, is SQL_Latin1_General_CP1_CI_AS.It would be helpful to find the explanatin of this behavior. Thanks.--(remove a 9 to reply by email)
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Apr 16, 2006
I ran into a variety of problems trying to set a script task breakpoint in a package containing multiple script tasks. The debugger apparently treats the breakpoint as if it were set in ALL tasks in the package, not just the one in which it is actually set.
At best this results in hitting breakpoints in scripts where they are not set and at worst the debugger brings up the "Send error report" dialog and quits (while the package continues to run). The latter seems to happen most often when the script with the breakpoint has more lines than an earlier script and the breakpoint is set at a line number that exceeds the number of lines in the earlier script--it bombs when the earlier, shorter script starts.
To get the debugger to work under these circumstances I had to add some nonsense code like
While False
Dim i as Integer = 0
End While
to every script, at the same line number near the beginning of the script (line 40, for example). I then set a breakpoint on the middle statement in one of the scripts (doesn't matter which) to cause the debugger to open at runtime. It doesn't hit the breakpoint because the line is never executed. If the breakpoint is set on a line that can be executed in any script in the package, bad things tend to happen.
I then add a "stop" statement to the script that I want to debug. This only works if the debugger is already open, hence the dummy breakpoint above.
This workaround is usable, but I am debugging a package that has quite a few scripts and having to insert dummy code in all of them at a fixed line number is rather inconvenient. I would really like to see breakpoints work the way one would expect--only in the scripts where they are set.
Is there some other, easier way around this problem? Is there at least an easier way to get the debugger to open so that "stop" will work?
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May 27, 2008
Hey, quick question here. In my database for my webapp (The one I showed you guys in my previous post), in my stickies table, I am using a column called StickyId for the PK, and it is of type int. My concern is that eventually, I may get to a point with more then 2 million records in the stickies field. I am looking at using the bigint datatype for StickyId instead, but it takes up twice the memory. So I have two questions:1. Can I declare the StickyId column as type int for now, and if my DB ever starts approaching the 2 million mark, access my DB and change it over to a bigint type? Aka, will MS SQL convert the exisiting int values into a bigint and be transparent to the app and the users?2. Does the bigint always use 8 bytes to store its value? Aka does it pad, so that if I stored the value of '1' would that take the same space as if I stored the value '43563636'? Or is it more like varchar, only taking up the space that that particular value needs?Thanks in advance guys!
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Mar 18, 2008
Hi there! My question is: I use a bigint data type as a primary key in my database, so
1. Can I define bigint autoincrement as unsigned?
2. In case of possible, what type should I use in C# code that equal to bigint unsigned - ulong?
3. In case of impossible, what type should I use in C# code - long?
Thanks
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Sep 23, 2007
i am creating an application which the number of records will be beyond 100000 so i need to set the primary keys to bigint instead of int
i need to know about the performance and difference
will it affect the performance much and second will i have to change any code like delete,update
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Mar 10, 2008
I am using bigint as a primary key. What happens when bigint reaches the maximum number that it can hold?
The Yak Village Idiot
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Jan 2, 2008
I want to write the following query.
SELECT CASE WHEN Member.CuApplicationDocFK = 'NULL' THEN 'Existing' ELSE 'New' END AS MemberType
FROM Member
But the problem is Member.CuApplicationDocFK is bigint type. When I run the query it gives a error message saying "error converting data type varchar to bigint.
Can anyone tell me how to fix this please?
Thanks
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Oct 4, 2006
The documentation seems to suggest that I can store either a signed or unsigned value in bigint. If I want to store an unsigned value how do I go about it?
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May 20, 2008
This select qry runs for abt 20 mins, I think convert to bigint is causing the slowness. Underlying tbl has abt 50000 recs. Pl note that I am runnign this in SQL SERVER 2005, Where it takes abt 20 mins. However when I run this on SQL Server 2000, it takes only 4 mins.
ANy ideas to speed up this qry.
select distinct convert(bigint,c.loannum) as loannum ,c.ampsstatus ,((convert(char(10),c.insdate,110) )) as MaxInsdate
from Conversion_AllStatus_History2007 c
where ((convert(char(10),c.insdate,110) )) =(select max((convert(char(10),a.insdate,110) )) from
Conversion_AllStatus_History2007 a
where convert(bigint,a.loannum)=convert(bigint,c.loannum))
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Jun 19, 2006
I'm using Sql Server 2000/7 for my projects.
How to handle the situation if a primary key (a field set as identity) of type bigint gives an overflow problem?
Is there any way to reuse identities if a primary key field is set as identity from the database settings? (we can do this if we donot set the primary key field as identity from the datbase and handle it from front end)
please help
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Mar 23, 2012
I am new SQL Server, I have below Timestamp conversion running in Oracle how do I convert same in SQL Server
Default date - 01/01/1970
Application stores Date as bigint - 1326310811062
(TIMESTAMP('01/01/1970', '00:00:00') + (1326310811062 / 1000) SECONDS) AS CREATION
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Apr 15, 2004
Hi All,
i wonder if i can get an bigint autoincrement field where the number begins with the current year + 1 autonumber
Does someone know if it is possible and if yes, how?
Already thanx.
Cheers Wim
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Jul 23, 2005
I have an SQL back-end with and Access front end. A table in my SQL db hasan auto-num field (integer) that has exceded 70000+ entries. I can add nomore to this table unless I convert that field from INT to BIGINT. Ofcourse, Access doesn't seem to know what a BIGINT is... suggestions?
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Nov 22, 2006
I am attempting to build our first set of packages populating or DW. All of our source system primary keys are bigints (on the main tables at least). SSIS seems to have a problem dealing with bigint values, i.e. having to assign variables as doubles rather than int64, having to cast returning bigint values as float, or bigint sproc output parameters as double. It is all a bit messy (and possibly the most frustrating part of SSIS for me) - does anyone know if this problem is due to be fixed in any forthcoming release?
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Nov 24, 2003
I just discovered that a bigint column in one of my tables is getting it's values truncated when I run a DTS job to copy the data to another database. The DTS job is designed to refresh our test environments from our production database. All the other tables copy fine. This include another table that also contains a bigint column. But this one table consistenly has a problem where 60 or so records are translated from positive number to negative values. The only explaination I came up with was truncation at some point.
Anyone know of a way to fix or work around this?
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Apr 20, 2007
this is more of a theoretical question and not necessarily for best practice...though if reliable and efficient, i'd use it.
a lot of my sprocs return xml and are then processed in xslt...so when i need to sort by date (in xslt), i pass the datetime to a function that ultimately returns a bigint...it seems to work, but i'm not 100% confident...
can anyone confirm that the resulting integer values can be relied on for sorting?
function return: cast((cast(@dt as binary(8))) as bigint)
small test:
sql Code:
Original
- sql Code
declare @i int, @d datetime
declare @t table (id int identity, dt datetime, bd binary(8), bi bigint)
set @i=1
set @d = getdate()
while @i between 1 and 20
begin
insert @t(dt, bd, bi)
select
@d,
cast(@d as binary(8)),
cast((cast(@d as binary(8))) as bigint)
set @d = dateadd(mi, @i, @d)
set @i=@i+1
end
select *
from @t
order by bi
DECLARE @i int, @d datetimeDECLARE @t TABLE (id int identity, dt datetime, bd BINARY(8), bi bigint) SET @i=1SET @d = getdate()WHILE @i BETWEEN 1 AND 20BEGIN INSERT @t(dt, bd, bi) SELECT @d, CAST(@d AS BINARY(8)), CAST((CAST(@d AS BINARY(8))) AS bigint) SET @d = dateadd(mi, @i, @d) SET @i=@i+1END SELECT *FROM @tORDER BY bi
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May 3, 2007
I am attempting to write a conversion of our product for Compact Edition; we already provide it based on SQL Server. The database interface uses ADO through a Python-win32com adaptor, and has worked fine so far. (Note: *not* ADO.net, just plain old COM)
Now, a curious thing happens. When inserting new data through a Recordset, everything works fine - except for columns defined as bigint. There are no exceptions thrown, but when you read the columns back they contain nothing but zeroes. Do the same to any other column type - I've tried integer, numeric, float, nvarchar and ntext so far, and they all seem to work just fine. It does not seem to be conversion-related either, since I've tested the exact same data to various column types. And using bigint on regular SQL Server works just fine.
The code involved is quite unspectacular, and simply switching the column types to integer would solve the immediate problem, but causes potential future issues since we normally store internal IDs in bigint columns, and the values may grow quite large.
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Sep 11, 2006
Hello
Which variable type in SSIS maps to bigint in SQL Server 2005?
I am returning a single column value of type bigint from SQL Server and want to store that in a varible in SSIS, what datatype should I use?
I tried Int32, Int64, Uint64 and it did not work. Did I do something wrong?
Thanks
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Jun 8, 2015
I've got a problem: in few months from now my IDs (int) will reach max positive value. The only viable solution is to convert int-s to bigint-s.
There is a story behind this but I believe it's irrelevant. Simply, I need to 'upgrade' int-s to bigint-s; let's take it as a fact.
Question is: is there a formula to calculate increase in disk and RAM consumption? If we presume I'd need to have same number of pages in buffer cache, how can I calculate how much more memory I need?
Just to ease calculation, let's suppose that I have single table with 1e6 rows and 3 columns:
ID (int), PARENT_ID (int) and NAME (NVARCHAR(30)).
PK is on ID (let's call it PK_ID) and there are 2 indexes on PARENT_ID (i.e. IX_PARENT) and NAME (IX_NAME).
Now, if I turn int-s into bigint-s and still want to keep entire table in cache, how I can calculate how much memory I'd need?
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Aug 21, 2006
Hi ,
I have a hexadecimal string value. I want to convert it to Bigint in Sql Server 2005.
The Hexadecimal value is '0x000000000000000F'.
How is it possible to convert into Bigint.
Please help me
Thanks in advance
Srinivas
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May 9, 2006
Please help me on this one.
I need to return a value to VB.
I've tried returning a numeric value NUMERIC(25,20) via an output parameter but this didn't work. I'm know at a point in wich I created a bigint and multiplied the value so that the decimals are gone. However it only returns NULL?!?!?!?!!?!?
Here's part of my stored proc
CREATE PROCEDURE dbo.uspCalcWeightedAverage @StartDate2 varchar(10), @EndDate2 varchar(10), @InMarket nvarchar(50), @InProductType int, @InWeekDay int, @WeightedAverage bigint OUTPUTAS......SELECT @WeightedAverage = cast(10000000000 * (SUM(HHF.FACTOR) / COUNT(PDF.FLAG)) as bigint)FROM TBL_PRODUCTDEFS PDF INNER JOIN #DATESBETWEENINTERVAL DBI ON DATEPART(HH, [DBI].[DATE]) = [PDF].[HOUR] INNER JOIN tbl_historichourlyfactors HHF ON DATEPART(D,DBI.DATE) = HHF.DayID AND [PDF].[HOUR] = [HHF].[HOUR] AND DATEPART(M,DBI.DATE) = [HHF].[Month]WHERE PDF.MARKETID = @InMarketID AND PDF.PRODUCTTYPEID = @InProductTypeID AND [PDF].[WD-WE] = @InWeekDay AND HHF.MARKETID = @InMarketID AND PDF.FLAG = 1GROUP BY FLAG
When I retrieve the output param it returns a NULL value. the properties in VB say that the parameter has the following props:
attribute 64 (Long)
NumericScale 0 (Byte)
Precision 19 (Byte)
Size 0 (ADO_LNGPTR)
Type adBigInt
Value Null
I try to return it with the following code (got the code from a friend)
Public Function RunProcedure(ByVal v_strStoredProcName As String, ByRef r_varParamValues() As Variant) As ADODB.RecordsetDim objAdoRecordset As ADODB.RecordsetDim objAdoCommand As ADODB.CommandDim lngCtr As Long On Error GoTo RunCommand_Error ' Create cmd object Set objAdoCommand = New ADODB.Command Set objAdoCommand.ActiveConnection = m_oAdoConnection objAdoCommand.ActiveConnection = m_oAdoConnection objAdoCommand.CommandText = v_strStoredProcName objAdoCommand.CommandType = adCmdStoredProc Call objAdoCommand.Parameters.Refresh 'Stop For lngCtr = 0 To UBound(r_varParamValues) If objAdoCommand.Parameters(lngCtr + 1).Direction = adParamInput Then objAdoCommand.Parameters(lngCtr + 1).Value = r_varParamValues(lngCtr) End If Next Set objAdoRecordset = New ADODB.Recordset objAdoRecordset.CursorLocation = adUseClient Set objAdoRecordset = objAdoCommand.Execute 'Stop For lngCtr = 0 To objAdoCommand.Parameters.Count - 1 If objAdoCommand.Parameters(lngCtr).Direction = adParamOutput Or objAdoCommand.Parameters(lngCtr).Direction = adParamInputOutput Then r_varParamValues(lngCtr - 1) = objAdoCommand.Parameters(lngCtr).Value End If Next Set RunProcedure = objAdoRecordsetRunCommand_Exit: ' Collect your garbage here Exit FunctionRunCommand_Error: ' Collect your garbage here Call g_oGenErr.Throw("WeatherFcst.CDbsConn", "RunCommand")End Function
PLEASE HELP.
Regards,
Sander
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Jul 26, 2007
I have a database that has a tble with a field that autoincrements as a primary key. meanig that the field type is BigInteger and it is set up as my Identity Column. Now when I insert a new record that field gets updated automaticly.
How can I get this value in the same operation as my insert? meaning, in 1 sub, I insert a new record but then need to retieve the Identity Value. All in the same procedure.
Waht is the way to achive this please?
Marc
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May 10, 2005
We are trying to work with our developers to upgrade to SQL 2000 from SQL 7 for a critical applicaion and all looks good in testing for the most part. The concern that our developers have is that in order for the application to work on the test SQL 2000 server they had to delete a core data type (bigint) for the application to work. It doesn't appear to have any negative affects and we know for sure that the application database does not need that data type at all.
Can someone verify that there are no requirements for SQL 2000 needing to have this data type? They are worried that something within SQL may rely on it and we would find out the hard way in production possibly.
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Nov 14, 2007
Hello,
I would like to change the datatype on a particular column from varchar to bigint across 100's of tables within a database.
I have the command ready which is:
ALTER TABLE tablename ALTER COLUMN columnname BIGINT
The problem happening is that it seems there are constraints across all the columns in every tables.
The error message is:
Server: Msg 5074, Level 16, State 1, Line 1
The object 'DF__tablename__columnname__0ABD916C' is dependent on column 'columnname'.
Server: Msg 4922, Level 16, State 1, Line 1
ALTER TABLE ALTER COLUMN columnname failed because one or more objects access this column.
I understand that if I delete this constraint, then it will let me modify the datatype of the column, but since there are tons of them and they are randomly named, how do I achive changing the datatype across multiple tables in bulk.
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Mar 4, 2014
I try to run code but got an error. How to fix it?
SELECT Cast(('20140304800084500001') AS BIGINT)
Arithmetic overflow error converting expression to data type bigint
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Nov 5, 2015
Looking at an execution plan the conversion of NVARCHAR(15) to BIGINT is a big yellow exclamation NO NO. However, the numbers in the NVARCHAR(15) have leading zeros.
Technically speak 0123456789 is not an INTEGER or BIGINT, the performance of my Stored Procs is there any way to allow leading zeros in a BIGINT Field?
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Mar 17, 2008
HI all, we have a table that has it's primary key data type Bigint. Isthere any way with Access to view this table? I find it hard tobelieve that two tools from MS don't play nice with each other, may beI should.SQL Server 2005Access 2003TIA
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May 26, 2015
Following SQL statement attempts to convert a bigint to date
SELECT CAST (DATEADD(SECOND, SEM_AGENT.LAST_UPDATE_TIME /1000 + 8*60*60, '19700101') AS VARCHAR(50)) as Last_Checkin ........
But no matter what I try, the output is
May 27 2015 1:18AM
and I wish the output to be
May 27 2015
I also tried
SELECT CAST (DATEADD(SECOND, SEM_AGENT.LAST_UPDATE_TIME /1000 + 8*60*60, 'Jan 1, 1970') AS VARCHAR(50)) as Last_Checkin ....
but same result
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Aug 27, 2015
I found this to work:
SELECT uri, evFieldUri, evFieldVal
, CAST(evFieldVal
AS BIGINT)
FROM TSEXFIELDV
[Code] ....
It Returns:
uri
evFieldUri
evFieldVal
(No column name)
224016 3267
+000089243829 89243829
224019 2717
+000089243825 89243825
224472 3333
+000000000000000000000017 17
225052 3267
+000089243829 89243829
225055 2717
+000089243825 89243825
So, then I went back to:
SELECT uri, evFieldUri, evFieldVal
, CAST(evFieldVal
AS BIGINT)
FROM TSEXFIELDV
[Code] ....
And it returns this error:
Msg 8114, Level 16, State 5, Line 1
Error converting data type varchar to bigint.
So, I tried again, and this worked…
SELECT uri, evFieldUri, evFieldVal,CAST(evFieldVal
AS BIGINT),
ISNUMERIC(evFieldVal)
FROM TSEXFIELDV WHERE URI
> 0 AND evFieldUri
IN ( SELECT URI
FROM TSEXFIELD WHERE exFieldFormat
IN (1,11))
I logged out and came back and tried again, and it still worked. So then I tried…
SELECT uri, evFieldUri, evFieldVal,CAST(evFieldVal
AS BIGINT)
FROM TSEXFIELDV
WHERE URI
> 0
[Code] ...
And it fails.
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Feb 25, 2008
I getting the above error can someone please help me solve it, here is the code:
public void InsertHost() { // TODO // - Call stored procedure to write to a log file writeToLog using (SqlConnection cn = new SqlConnection(ConfigurationManager.AppSettings["ConnectionString"])) { SqlCommand cmd = new SqlCommand("writeToLog", cn); cmd.CommandType = CommandType.StoredProcedure; cmd.Parameters.AddWithValue("@pAction", "action"); cmd.Parameters.AddWithValue("@pHostName", "Hostname"); cmd.Parameters.AddWithValue("@pUserNUm", "requestorID"); cn.Open(); cmd.ExecuteNonQuery(); } }
Here is the storedprocedure:
ALTER PROCEDURE dbo.writeToLog(@pAction varchar(10), @pUserNUm bigint, @pHostName varchar(25))AS INSERT INTO dbo.hostNameLog (action, requestorID, HostName)VALUES (@pAction, @pUserNUm, @pHostName)
Here is the table:
HostName - varchar, action - varchar, requestorID - bigint
I can't seem to find the error.
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Aug 25, 2005
I have the following query which has been giving me headaches for days : SELECT SCCode [Service Catalog Code], FileName [File Name], FullName [Full Name], FileExtension [Extension], FileSize [Size], Author [Author], CONVERT(VARCHAR(50),CAST(LastModified AS SMALLDATETIME), 120) [Last Modified], CONVERT(VARCHAR(50),CAST(LastAccessed AS SMALLDATETIME), 120) [Last Accessed], TimesAccessed [Downloads], UploadedBy [Uploaded By], CONVERT(VARCHAR(50),CAST(UploadedAt AS SMALLDATETIME), 120) [Uploaded At] FROM #TempTable WHERE id > @firstitem AND id < @lastitem ORDER BY CASE WHEN @sortcolumn = 'Service Catalog Code' THEN SCCode WHEN @sortcolumn = 'File Name' THEN FileName WHEN @sortcolumn = 'Extension' THEN FileExtension WHEN @sortcolumn = 'Size' THEN FileSize WHEN @sortcolumn = 'Author' THEN Author WHEN @sortcolumn = 'Last Modified' THEN CONVERT(VARCHAR(50),CAST(LastModified AS SMALLDATETIME), 120) WHEN @sortcolumn = 'Last Accessed' THEN CONVERT(VARCHAR(50),CAST(LastAccessed AS SMALLDATETIME), 120) WHEN @sortcolumn = 'Downloads' THEN TimesAccessed WHEN @sortcolumn = 'Uploaded By' THEN UploadedBy WHEN @sortcolumn = 'Uploaded At' THEN CONVERT(VARCHAR(50),CAST(UploadedAt AS SMALLDATETIME), 120) END ASCWhen my @sortcolumn parameter is either FileSize (BIGINT) or TimesAccessed (BIGINT) then the query returns the data without any problem. However, if I use a different @sortcolumn value such as "Author" then I keep getting "Error converting data type varchar to bigint."A solution that seems to work is to drop CASE and use lots of IF statements instead. I don't prefer to do this because it requires me to repeat the same select statement for each and every possible @sortcolumn value!Does anyone know how to solve this? Help!
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