Re: Reduce build times of pg_trgm GIN indexes

> Attached are the patches rebased on latest master.
>
> I've removed the ASCII fast-path patch 0006 as it turned out to be more
> complicated to make work than expected.
>
> I kept the radix sort patch because it gives a decent speedup but I
> would like to focus for now on getting patches 0001 - 0004 merged.
> They're all simple and, the way I see it, uncontroversial.
>
> I remeasured the savings of 0001 - 0004, which comes on top of the
> already committed patch that inlined the comparison function, which gave
> another ~5%:
>
> Data set | Patched (ms) | Master (ms) | Speedup
> --------------------|--------------|--------------|----------
> movies(plot) | 8,058 | 10,311 | 1.27x
> lineitem(l_comment) | 223,233 | 256,986 | 1.19x
>
> I've also registered the change at the commit fest, see
> https://commitfest.postgresql.org/patch/6418/.

Attached is v5 that removes an incorrect assertion from the radix sort code.

--
David Geier