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Value truncation on user defined type

From: CG <cgg007(at)yahoo(dot)com>
To: pgsql-odbc(at)postgresql(dot)org
Subject: Value truncation on user defined type
Date: 2007-05-09 17:08:33
Message-ID: 628526.98267.qm@web37911.mail.mud.yahoo.com (view raw or flat)
Thread:
Lists: pgsql-odbc
I've finally taken the plunge and upgraded PgODBC from 7.03.02.00 to 8.02.04.00 ... I'm having an issue with data truncation on the uniqueidentifier type (http://gborg.postgresql.org/project/uniqueidentifier/projdisplay.php) ...


'in ASP vbScript....

dim conn, sql, rs, newUUID
set conn = server.createobject("adodb.connection")
conn.open("Provider=MSDASQL.1;Password=pass;Persist Security Info=True;User Id=user;Mode=ReadWrite;" & _
 "Extended Properties=""DRIVER={PostgreSQL ANSI};" & _
 "DATABASE=data;SERVER=10.0.0.2;PORT=5432;UID=user;PWD=pass;" & _
 "SSLmode=disable;ReadOnly=0;Protocol=7.4-1;FakeOidIndex=0;ShowOidColumn=0;RowVersioning=0;" & _
 "ShowSystemTables=0;ConnSettings=set+sort%5Fmem%3D10241%3Bset+geqo%3Don%3B;Fetch=300;Socket=4096;" & _
 "UnknownSizes=0;MaxVarcharSize=254;" & _
 "MaxLongVarcharSize=8190;Debug=0;CommLog=0;Optimizer=1;Ksqo=1;UseDeclareFetch=0;TextAsLongVarchar=1;" & _
 "UnknownsAsLongVarchar=0;BoolsAsChar=1;Parse=0;CancelAsFreeStmt=0;ExtraSysTablePrefixes=dd_;;LFConversion=1;" & _
 "UpdatableCursors=1;DisallowPremature=0;TrueIsMinus1=0;BI=0;ByteaAsLongVarBinary=0;UseServerSidePrepare=1;" & _
 "LowerCaseIdentifier=0;XaOpt=1""")

 sql = "select newid() as uuid;"

 set rs = conn.execute(sql)
 newUUID = rs("uuid").value

 response.write ("Length : " & len(newUUID) & "<BR>" & vbcrlf)
 response.write ("Type : " & vartype(newUUID) & "<BR>" & vbcrlf)
 response.write ("<table border=""1"">")
 for i = 1 to len(newUUID)
  response.write ("<tr><td>" & asc(mid(newUUID,i,1)) & "</td><td>" & server.htmlencode(mid(newUUID,i,1)) & "</td></tr>" & vbcrlf)
 next
 response.write ("</table>")

 rs.close
 set rs = nothing
 conn.close
 set conn = nothing

The returned value is the correct length, but there must be a null inserted after the 16th character becasuse the return value, which is a string type, abruptly terminates at that point. 

If I cast the uuid to type text, nothing gets truncated. This wasn't a problem in 7.03.02.00 ...


 
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Next:From: Hiroshi InoueDate: 2007-05-10 13:50:36
Subject: Re: Value truncation on user defined type
Previous:From: noreplyDate: 2007-05-09 15:33:21
Subject: [ psqlodbc-Bugs-1003103 ] copy_and_convert_field(...) destroys bind info for wide char varchar columns

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