Hi There
I have just noticed a funny with DoubleMetaphone phonetic searching
involving records with certain values in date fields causing a phonetic
match to be returned for that record.
I was searching for the word 'main' and I found results being returned with
nothing being highlighted via the unified highlighter. I tracked the issue
down to these date fields holding this values
"statementDate_dtr":"2019-10-28T00:00:00Z",
"statementDate_dt":"28/10/2019",
Now the word 'main' has a phonetic value of 'MN' (according to the Solr
Admin Tool analysis feature). Searching for either 'main' or 'mn' in the
Admin tool returns a match on the record with these date values.
The fields are configured as
<dynamicField name="*_dt" type="text_en_uleaf" indexed="true"
stored="true"/>
<dynamicField name="*_dtr" type="pdate" indexed="true" stored="true"/>
I suspect the issue is down to the _dtr field as the _dt field is basically
a string field.
If I place the text 2019-10-28T00:00:00Z in a standard string field on
another record the phonetic search does not match for 'main' on that record
which does seem to point to the issue being related to a date field.
If I then update the record and change the date to be say
"takenDate_dtr":"2021-07-07T00:00:00Z",
"takenDate_dt":"07/07/2021",
Then a search for 'main' does not find a phonetic match.
I am using Solr 8.8.1 and Solr 8.9.0 and the issue appears in both versions.
I was wondering if anyone has seen this before?
Many Thanks
Matthew
Matthew Flowerday | Consultant | ULEAF
Unisys | 01908 774830| <mailto:matthew.flower...@unisys.com>
matthew.flower...@unisys.com
Address Enigma | Wavendon Business Park | Wavendon | Milton Keynes | MK17
8LX
<http://www.unisys.com/>
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