Hello everyone,
I am using the fuzzy search capability of SOLR 8.7 and I dug into a specific
case in which the search misbehaves.
I am using this analyzer (JSON here) on the field that I am using for search
"analyzer" : {
"filters":[
{
"class":"solr.ASCIIFoldingFilterFactory",
"preserveOriginal":"false"
},
{
"class":"solr.LowerCaseFilterFactory"
},
{
"class":"solr.PatternReplaceCharFilterFactory",
"replacement":"",
"pattern":"[^A-Za-z0-9]"
}
],
"tokenizer": {
"class":"solr.KeywordTokenizerFactory"
}
}
If the field has the value let's say
abcdefghi
It matches with
a.b.c.d.e.f.g.i
Because those dots inside are discarded due to the
PatternReplaceCharFilterFactory.
The problem I have is if instead of normal search I use the fuzzy search. The
search term would look like this (with tilde 2 at the end, I am using distance
of 2):
a.b.c.d.e.f.g.i~2
This query never matches the original value without dots.
Why is that? I anticipated that the filters are not applied when there is a
fuzzy search query running, but the lowercase and the ASCIIFolding ones are
working as intended.
