The diagram in the dictionary-encoded forward index seems to be wrong - entries with docId 3 and 4 (last two entries) point to "113" for the colA but contain dictId of 2 and 3 respectively. Shouldn't they be set to '2' just like the entries pointing to 112?

Thanks for reporting... Can you share the link?

You are right; good eyes we will have to replace the image

Was this image generated through some tool or drawn manually?

I think Omni graffle or draw.io

I have a note that the diagram(s) on the page also seemed wrong to me.