On Thu, Aug  4, 2016 at 01:16:20AM +0100, Simon Riggs wrote:
> > Would you only add a LITE index entry when there isn't an
> > existing index entry for the same values and heap page?  That seems
> > quite complicated.
> The insertion algorithm is described. Doesn't seem complicated to me.

Ah, I see it now:

        As UPDATEs occur we request inserts into the index. If a lossy index
        pointer already exists that covers the new linepointer then we skip
        the index insert, optimizing writes to the index.

I thought you meant "already exists" just means it matches the existing
range.  I was unclear that was the entire page.

  Bruce Momjian  <br...@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

+ As you are, so once was I. As I am, so you will be. +
+                     Ancient Roman grave inscription +

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