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https://issues.apache.org/jira/browse/SOLR-629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16815357#comment-16815357
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ManuelG commented on SOLR-629:
------------------------------
It seems that it has been some back and forth if fuzzy search has been support
in either in “dismax” or “edismax”. I can confirm that with Solr 7.7.1 neither
“dismax” or “edismax” supports fuzzy search in conjunction with the use of the
*qf* parameter.
In my test data there will be no results for:
{code:java}
"params":{
"q":"max",
"defType":"dismax",
"qf":"fields~",
"params":{
"q":"max",
"defType":"edismax",
"qf":"fields~",
{code}
On the other side I will get 1 hit for:
{code:java}
"params":{
"q":"max",
"defType":"dismax",
"qf":"fields",
"params":{
"q":"max",
"defType":"edismax",
"qf":"fields",
{code}
> Fuzzy search with eDisMax request handler
> -----------------------------------------
>
> Key: SOLR-629
> URL: https://issues.apache.org/jira/browse/SOLR-629
> Project: Solr
> Issue Type: Improvement
> Components: query parsers
> Affects Versions: 7.4
> Reporter: Guillaume Smet
> Priority: Minor
> Attachments: SOLR-629.patch, SOLR-629.patch,
> dismax_fuzzy_query_field.v0.1.diff, dismax_fuzzy_query_field.v0.1.diff
>
>
> The DisMax search handler doesn't support fuzzy queries which would be quite
> useful for our usage of Solr and from what I've seen on the list, it's
> something several people would like to have.
> Following this discussion
> http://markmail.org/message/tx6kqr7ga6ponefa#query:solr%20dismax%20fuzzy+page:1+mid:c4pciq6rlr4dwtgm+state:results
> , I added the ability to add fuzzy query field in the qf parameter. I kept
> the patch as conservative as possible.
> The syntax supported is: fieldOne^2.3 fieldTwo~0.3 fieldThree~0.2^-0.4
> fieldFour as discussed in the above thread.
> The recursive query aliasing should work even with fuzzy query fields using a
> very simple rule: the aliased fields inherit the minSimilarity of their
> parent, combined with their own one if they have one.
> Only the qf parameter support this syntax atm. I suppose we should make it
> usable in pf too. Any opinion?
> Comments are very welcome, I'll spend the time needed to put this patch in
> good shape.
> Thanks.
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