A text field is a sequence of terms that has been tokenized while a string
field is a single term (although it can also be multivalued.)
Punctuation and spacing is ignored for text fields. Text tends to be
lowercased, stemmed, and even stop words removed. You tend to search text
using a handful of keywords whose exact order is not required, although
quoted phrases can be used as well. Fuzzy queries can be done on individual
terms (words). Wildcards as well.
String fields are literal character strings with all punctuation, spacing,
and case preserved. Anything other than exact match is done using wildcards,
although I suppose fuzzy query should work as well.
String fields are useful for facets and filter queries or display.
Text fields are useful for keyword search.
Synonyms are a token filtering, which applies to text fields, not string
fields.
A fuzzy query would not work properly for a synonym expansion in which some
of the terms are phrases, but should otherwise work for a text field term.
If you have a specific case that fails, please provide the details.
-- Jack Krupansky
-----Original Message-----
From: Gau
Sent: Wednesday, May 30, 2012 4:39 PM
To: solr-user@lucene.apache.org
Subject: Difference between textfield and strfield
Hi,
Can anyone explain me the basic pros and cons between textfield and
strfield. I am trying to use Levenstein distance on textfield, but it seems
that it can only be applied on the strfield. So my question is whats the
difference between the 2 and what are the radical advantages of one over the
other
Currently I have the text field defined for first_name and i apply synonym
expansion at query time to this field.
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