Dictionary Search Results using Damerau-Levenshtein distance in T-SQL

Here are the results of your fuzzy-string dictionary search for “letch” with Change Limit: [1] [2]

(Found more than 100 similar words, so Change Limit cannot be increased.)
Check this box to automatically search another random word after seconds.

101 similar words found! Changes to Transform each Found Word to your word are shown as:
~~remove a letter~~ ~ replace a letter ~ swap two letters ~ _add a letter from your word
(Use the links in the Changes column to see more Transformation details.)

Found Word	Scrabble Score	Searched Previously	Found Previously	Changes	To Transform to your Word
letch	10	52	1580	(None)
etch	9	54	1914	1	_etch
fetch	13	49	1347	1	fetch
fletch	14	38	819	1	fletch
ketch	14	49	1202	1	ketch
latch	10	46	2046	1	latch
leach	10	54	2252	1	leach
lech	9	68	2544	1	le_ch
leech	10	49	1321	1	leech
retch	10	48	1830	1	retch
vetch	13	44	1184	1	vetch
aitch	10	52	1616	2	aitch
batch	12	46	2010	2	batch
beach	12	46	2389	2	beach
beech	12	43	1550	2	beech
belch	12	44	1550	2	belch
bench	12	56	1950	2	bench
beth	9	66	2923	2	bet_h
bitch	12	50	1776	2	bitch
bleach	13	36	1140	2	bleach
blench	13	37	1045	2	blench
blotch	13	19	714	2	blotch
botch	12	67	1745	2	botch
butch	12	54	1654	2	butch
catch	12	51	2037	2	catch
clench	13	39	1005	2	clench
clutch	13	36	775	2	clutch
cutch	12	51	1619	2	cutch
detach	12	3	1041	2	detach
ditch	11	50	1509	2	ditch
dutch	11	47	1382	2	dutch
each	9	55	3058	2	_each
eth	6	66	3098	2	_et_h
fetich	14	7	969	2	fetich
fitch	13	48	1687	2	fitch
fleech	14	36	734	2	fleech
flench	14	40	1081	2	flench
flitch	14	92	817	2	flitch
glitch	12	28	635	2	glitch
hatch	13	57	1959	2	hatch
heth	10	70	2802	2	het_h
heuch	13	53	1233	2	heuch
hitch	13	45	1547	2	hitch
hotch	13	62	1472	2	hotch
hutch	13	54	1409	2	hutch
itch	9	56	1917	2	_itch
kench	14	55	1392	2	kench
klatch	15	44	593	2	klatch
kvetch	18	3	299	2	kvetch
laich	10	59	2071	2	laich
larch	10	59	1979	2	larch
lath	7	66	4038	2	lat_h
leachy	14	41	973	2	leachy
leash	8	55	1921	2	leash
let	3	64	8147	2	let__
letched	13	39	1205	2	letched
letches	12	40	1548	2	letches
lethe	8	57	1730	2	lethe
lets	4	71	4794	2	let_s
letup	7	37	1216	2	letup
lich	9	62	3084	2	l_ich
litchi	11	3	789	2	litchi
loach	10	51	1636	2	loach
loch	9	55	2713	2	l_och
lotah	8	53	1585	2	lotah
loth	7	61	3213	2	lot_h
lunch	10	49	1724	2	lunch
lurch	10	48	1463	2	lurch
lych	12	60	1576	2	l_ych
lynch	13	46	898	2	lynch
match	12	56	2110	2	match
merch	12	54	1796	2	merch
meth	9	58	2784	2	met_h
mutch	12	50	1617	2	mutch
natch	10	50	1822	2	natch
notch	10	56	1332	2	notch
patch	12	52	2122	2	patch
peach	12	54	2249	2	peach
pech	11	61	2545	2	pe_ch
perch	12	45	1883	2	perch
pitch	12	50	1841	2	pitch
pleach	13	42	1124	2	pleach
plench	13	40	1081	2	plench
ratch	10	42	2136	2	ratch
reach	10	51	2388	2	reach
rotch	10	58	1593	2	rotch
sketch	15	3	535	2	sketch
slatch	11	45	1053	2	slatch
teach	10	52	2112	2	teach
tech	9	59	2544	2	te_ch
tench	10	56	2000	2	tench
tetchy	14	3	600	2	tetchy
teth	7	63	2788	2	tet_h
teuch	10	52	1485	2	teuch
watch	13	56	1706	2	watch
welch	13	44	1149	2	welch
wench	13	62	1478	2	wench
witch	13	45	1756	2	witch
wretch	14	32	653	2	wretch
yecch	15	55	809	2	yecch
yech	12	72	2053	2	ye_ch

Search took 2 seconds overall (including website activity, plus SQL activity in the following phases):

Length Filter: Limit the application of DLD to words with length difference of no more than the Change Limit.
DLD Change Limit: Apply DLD to each remaining word, limiting each comparison according to the Change Limit.
Display Results: Return the results, with similar words marked up to highlight differences.

Seq	Search Phase	Words Checked	Words Matched	Seconds	Words Per Sec
1	Length Filter	178691	53800	0.076	2351197.4
2	DLD Change Limit	53800	101	1.703	31591.3
3	Display Results	101	101	0.030	3366.7
	(SQL Overall)	178691	101	1.809	98778.9