Checking stack depth

From: Suresh <suiyengar(at)yahoo(dot)com>
To: pgsql-hackers(at)postgresql(dot)org
Subject: Checking stack depth
Date: 2008-10-29 03:16:33
Message-ID: 191906.31038.qm@web54501.mail.re2.yahoo.com
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Hello,

Why is check_stack_depth function enforced in context of evaluating expressions in PostgreSQL ? What sort of recursion we are trying to safeguard ?

thanks,
Suresh

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