Searching "Winkler H" returned all seven Winklers instead of the one
Hannah. Each word was matched as a substring, so "H" hit T-h-omas,
Kat-h-arina and CNC-Dre-h-er:in — every row. The shorter the input, the
more useless the result, and an initial is the shortest input anyone
would type.
A word now has to match at the start of a word: either the haystack
begins with it, or a space does. The haystack is first name, last name
and job title joined, with hyphens, slashes, colons and dots flattened
to spaces, so "dreher" still finds CNC-Dreher:in and "cnc" still finds
both the Dreher and the Fräser.
Checked against the live data before and after: "winkler h" now returns
Hannah Winkler alone, "h winkler" the same in either order, "winkler
kat" the two Katharinas, "dreher" the twelve CNC-Dreher.
The trigram index on the concatenated name no longer applies, which is
the price. At under nine hundred rows the scan is a few milliseconds; an
index on the same expression brings it back when that stops being true.
LIKE's own wildcards are escaped now — typing "100%" searched for
everything before.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Maximilian Stubhan
33d053ce75