[fdo-internals] Counting rows in managed IFeatureReader

Jason Birch Jason.Birch at nanaimo.ca
Wed Apr 23 12:32:19 EDT 2008

So, there is no safe way of getting the count of features that are going
to be returned?


-----Original Message-----
From: Orest Halustchak
Subject: RE: [fdo-internals] Counting rows in managed IFeatureReader

Even with transactional support, you don't have a guarantee that two
selects will return the same results unless the server supports a
snapshot or serializable type of transaction isolation level, which is
not usually default. Typical isolation levels are read-committed. But,
this would be the same case regardless of whether you did a select
aggregates and then a select versus running a select twice.

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