Here’s my one-way email correspondence with the authors that lists the error and how I fixed it:

This turned out to be a permissions issue. Sorry for the bother.

-Greg

—–Original Message—–
From: Greg Pinero
Sent: Tuesday, July 08, 2008 11:02 AM
To: redemption@di….com
Subject: Outlook Redemption Question

Hi there,

I’m trying to use the RDOMail object’s Move method:

Move(DestFolder)
Moves message to a new folder.
DestFolder - The destination folder (RDOFolder object).
Returns the new message (RDOMail object) in the destination folder.

However I am getting this error:

Traceback (most recent call last):
File ““, line 1, in ?
File “>”, line 2, in Move
com_error: (-2147352567, ‘Exception occurred.’, (0, ‘Redemption.RDOMail’, ‘Error in IMAPITable.FindRow(PR_SEARCH_KEY): MAPI_E_NOT_FOUND’, None, 0, -2147221233), None)

I’m simply calling e.Move(rdoFolder)

Where e is an email message and rdoFolder is an RDO folder of the folder I want to move the message to. Let me know if it would help to see my code.

Thanks in advance for the help.

Greg Pinero

It’s a little hard to picture, so here’s a hypothetical aggregate query from the Netflix prize dataset:

select movie_id, customer_id, max(date) as latest, group_concat(rating) as all_ratings, count(*) as total_ratings
from ratings
group by movie_id,customer_id
having count(*)>1;

And we get back* **:

+----------+-------------+------------+-------------+---------------+
| MOVIE_ID | CUSTOMER_ID | LATEST     | ALL_RATINGS | TOTAL_RATINGS |
+----------+-------------+------------+-------------+---------------+
| 1        | 5           | 2007-12-02 | 3,2,4,5     | 4             |
| 54       | 3           | 2007-12-04 | 1,3,1       | 3             |
| 23       | 34          | 2007-12-07 | 5,5         | 2             |
+----------+-------------+------------+-------------+---------------+

As you can see for each set of rows grouped by the same movie_id and customer_id, it took each individual rating value and concatenated them all together in the new aggregate row.

* My actual query returned 0 rows so I thought I’d make up a quick example to illustrate the point.
** I made that pretty table*** with this ASCII table generating utility. Yay!
*** Pretty table may not be pretty in RSS readers or Blackberries.

Tags: Apparmor, Backup, Debug, Download, Forum_I_Posted_To, Grub, Linux, Mirror, Mysql, Pfam, Programming, Python, Security, Sql, Ubuntu, Wget

One way around this is to have the Python MySQL library (MySQLdb) store the results from a query on the database server and bring them back to you one at a time as you request them.

Here’s how you set that up:

import MySQLdb
import MySQLdb.cursors #Make sure to import this seperately

#build your connection object normally but pass it a cursorclass keyword
db=MySQLdb.connect(host=HOSTNAME,user=USERNAME,passwd=PASSWORD,db=DATABASE,
            cursorclass=MySQLdb.cursors.SSCursor)

#Usage

cursor=db.cursor()
cursor.execute('select huge_column from huge_table')
#iterate over the results pulling them down from the server on each iteration
for row in cursor:
    print row
cursor.close()

Tags: Address, Airport, Ajax, Api, Census, Distance, Forum_I_Posted_To, Geolocation, Geotagging, Gis, Googleearth, Gps, Groupby, Javascript, Jquery, Kayak, Linux, Local, Lvm, Maps, Mysql, Optimization, Performance, Pfam, Query, Sql, Storage, Table, Taxi, Ubuntu, Visualization, Webservices, Wikipedia