oak-chunk-update: "sequence item 0: expected string, long found"

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What steps will reproduce the problem?
1. oak-chunk-update --verbose  --database=tipsfora_myimobitrax  --user=root 
--ask-pass  --socket=/var/lib/mysql/mysql.sock  --execute="DELETE FROM 
myimobitrax.mt_click where click_time <1412060400 and OAK_CHUNK(mt_click)"

What is the expected output? What do you see instead?

- Checking for UNIQUE columns on myimobitrax.mt_click, by which to chunk
-- Table locked READ
-- camp_id,click_time,click_id (min, max) values: ([12L, 1404201757L, 
18792867L], [1290L, 1415419358L, 45645222L])
-- Table unlocked
sequence item 0: expected string, long found

What version of the product are you using? On what operating system?
openark-kit-196-1.noarch.rpm (tried 170 and 180 - the same results)
Centos6.6
python 2.6.6

Please provide any additional information below.

Thank you,
Vitaly

Original issue reported on code.google.com by linux...@gmail.com on 8 Nov 2014 at 9:04