[TYPO3-english] DBAL and foreign_table in TCA.php

[Aji Yahya]

Hello List,

i was wondering if there is a way to use inside tca.php the 
foreign_table for getting records from another table outside typo3 DB.
i have an extension using DBAL, everything working fine. if i try 
foreign_table inside tca.php it is throwing:
DBAL fatal error: Tables in this list "tx_myext_table,pages" didn't use 
the same DB handler!

my code inside tca.php:

....
'config' => array (
	'type' => 'select',
	'foreign_table' => 'tx_myext_table',
	.....
	.....
)

many thanks for any help and ideas
regards
aji