[Exim] ${extract} question

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Autor: Kelley Reynolds
Data:  
Para: Lists - Exim
Assunto: [Exim] ${extract} question
Are calls to ${extract} cached if called only on a string?

For example:

warn set acl_c1 = foo=1
     condition = ${extract {foo}{$acl_c1}{$value}{0}}
     log_message =  This will print out


warn set acl_c1 = foo=0
     condition = ${extract {foo}{$acl_c1}{$value}{1}}
     log_message = This will not print out




So I am concluding that the lookup is cached, even though no mention is made of this in the the manual for extract specifically. Can somebody confirm this behavior, and if so, how can I alter it so that it doesn't cache the lookup?



Kelley Reynolds