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Message from discussion DECIMAL columns: Cursor.description is <type 'float'>?
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alexander.landg...@gmx.net  
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 More options Mar 30 2009, 10:00 am
From: alexander.landg...@gmx.net
Date: Mon, 30 Mar 2009 07:00:06 -0700 (PDT)
Local: Mon, Mar 30 2009 10:00 am
Subject: DECIMAL columns: Cursor.description is <type 'float'>?
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DECIMAL columns are stored as decimal.Decimal in Row objects.
But their type_code in Cursor.description is <type 'float'>

Is this the expected behaviour?

C:\>type issue_1.py
#!/usr/bin/env python
# -*- coding: ISO-8859-1 -*-

import ConfigParser
import types
import pyodbc

def main(Dsn, Uid, Pwd, Database):
    Connection = pyodbc.connect("DSN=%s;UID=%s;PWD=%s;DATABASE=%s" %
(Dsn, Uid, Pwd, Database))
    Cursor = Connection.cursor()
    Cursor.execute("SELECT CAST(3.5 AS DECIMAL(2,1)) AS x;")
    Rows = Cursor.fetchall()
    print "type(column in Row)            : ", type(Rows[0].x)
    print "type_code in Cursor.description: ", Cursor.description[0]
[1]

if __name__ == "__main__":
    Config = ConfigParser.ConfigParser()
    Config.read("logon.cfg")
    main(
        Config.get("Teradata", "Dsn")
        ,Config.get("Teradata", "Uid")
        ,Config.get("Teradata", "Pwd")
        ,Config.get("Teradata", "Database")
    )

C:\>python issue_1.py
type(column in Row)            :  <class 'decimal.Decimal'>
type_code in Cursor.description:  <type 'float'>

C:\>

[MS Windows Server 2003 SP2 + Python 2.5.1 + pyodbc 2.1.3 + Teradata
12 RDBMS]


 
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