Stephen Scheck writes:
> But how would the hash table keys themselves be deleted? Is there some
> callback API to hook transaction completion?
See RegisterXactCallback and RegisterSubXactCallback.
regards, tom lane
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Hmm, that might work - so allocate the values in a transaction-scoped
memory context?
But how would the hash table keys themselves be deleted? Is there some
callback API to
hook transaction completion?
On Wed, Jun 12, 2013 at 1:07 PM, Tom Lane wrote:
> Stephen Scheck writes:
> > "Never modify
Stephen Scheck writes:
> "Never modify the contents of a pass-by-reference input value. If you do so
> you are likely to corrupt on-disk data, since the pointer you are given
> might point directly into a disk buffer. The sole exception to this rule is
> explained in Section 35.10."
> If the UDTs
Hello,
I am working on an extension which defines a number of user-defined
functions which will operate on a common, custom data type to perform a
pipeline of transformations (the data type is the IN/OUT parameter for all
of the functions), eventually being supplied to a sink function which takes
