Strange in dictionary

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arr2036, thank you for your answer.

You are right!

I use unixodbc driver for Informix DB connection.
I checked my query in isql (CLI for unixodbc) and got next result:

+------------+---------+-------------------+--------------------+---+
| id         | username| attribute         | value              | op|
+------------+---------+-------------------+--------------------+---+
| 1          | test    | Cisco-Account-Info| AOPEN_DNS          | = |
| 2          | test    | Cisco-Account-Info| AL4REDIRECT_SERVICE| +=|
| 3          | test    | Cisco-AVPair"____"| ip:addr-pool=pool1 | +=|
+------------+---------+-------------------+--------------------+---+

The error appeared because unixodbc-driver returned an attribute
Cisco-AVPair in 3-rd row as "Cisco-AVPair"+"____" (where "_"  =
whitespace)


TRIM('Cisco-AVPair') sql function helped me.