There's already a couple of SQL function dealing with XLogRecPtrs and
the logical replication work will add a couple of more. Currently each
of those funtions taking/returning an LSN does sprintf/scanf to
print/parse the strings. Which both is awkward and potentially
noticeable performancewise.

It seems relatively simple to add a proper type, with implicit casts
from text, instead?


Andres Freund

 Andres Freund                     http://www.2ndQuadrant.com/
 PostgreSQL Development, 24x7 Support, Training & Services

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