Re: Assertion failure while streaming toasted data

I have identified the cause of the issue, basically, the reason is if
we are doing a multi insert operation we don't set the toast cleanup
until we get the last tuple of the xl_multi_insert [1].  Now, with
streaming, we can process the transaction in between the multi-insert
but while doing that the "change->data.tp.clear_toast_afterwards" is
set to false in all the tuples in this stream. And due to this we will
not clean up the toast.

One simple fix could be that we can just clean the toast memory if we
are processing in the streaming mode (as shown in the attached patch).