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https://issues.apache.org/jira/browse/SOLR-8082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15199538#comment-15199538
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Yonik Seeley commented on SOLR-8082:
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Building a boolean query is the slowest option of all (will look up all the
values twice and has overhead)... coverting to a float/double would be faster
(that should actually be a no-op... so it would be down to how fast the
floating point comparisons are vs long comparisons). If we did want to keep
things in "long" space rather than converting, then perhaps just create our own
version that does an additional comparison when needed.
> can't query against negative float or double values when indexed="false"
> docValues="true" multiValued="false"
> -------------------------------------------------------------------------------------------------------------
>
> Key: SOLR-8082
> URL: https://issues.apache.org/jira/browse/SOLR-8082
> Project: Solr
> Issue Type: Bug
> Reporter: Hoss Man
> Attachments: SOLR-8082.patch, SOLR-8082.patch, SOLR-8082.patch,
> SOLR-8082.patch, SOLR-8082.patch, SOLR-8082.patch
>
>
> Haven't dug into this yet, but something is evidently wrong in how the
> DocValues based queries get build for single valued float or double fields
> when negative numbers are involved.
> Steps to reproduce...
> {noformat}
> $ bin/solr -e schemaless -noprompt
> ...
> $ curl -X POST -H 'Content-type:application/json' --data-binary '{
> "add-field":{ "name":"f_dv_multi", "type":"tfloat", "stored":"true",
> "indexed":"false", "docValues":"true", "multiValued":"true" }, "add-field":{
> "name":"f_dv_single", "type":"tfloat", "stored":"true", "indexed":"false",
> "docValues":"true", "multiValued":"false" } }'
> http://localhost:8983/solr/gettingstarted/schema
> {
> "responseHeader":{
> "status":0,
> "QTime":84}}
> $ curl -X POST -H 'Content-type:application/json' --data-binary
> '[{"id":"test", "f_dv_multi":-4.3, "f_dv_single":-4.3}]'
> 'http://localhost:8983/solr/gettingstarted/update/json/docs?commit=true'
> {"responseHeader":{"status":0,"QTime":57}}
> $ curl 'http://localhost:8983/solr/gettingstarted/query?q=f_dv_multi:"-4.3";'
> {
> "responseHeader":{
> "status":0,
> "QTime":5,
> "params":{
> "q":"f_dv_multi:\"-4.3\""}},
> "response":{"numFound":1,"start":0,"docs":[
> {
> "id":"test",
> "f_dv_multi":[-4.3],
> "f_dv_single":-4.3,
> "_version_":1512962117004689408}]
> }}
> $ curl 'http://localhost:8983/solr/gettingstarted/query?q=f_dv_single:"-4.3";'
> {
> "responseHeader":{
> "status":0,
> "QTime":5,
> "params":{
> "q":"f_dv_single:\"-4.3\""}},
> "response":{"numFound":0,"start":0,"docs":[]
> }}
> {noformat}
> Explicit range queries (which is how numeric "field" queries are implemented
> under the cover) are equally problematic...
> {noformat}
> $ curl
> 'http://localhost:8983/solr/gettingstarted/query?q=f_dv_multi:%5B-4.3+TO+-4.3%5D'
> {
> "responseHeader":{
> "status":0,
> "QTime":0,
> "params":{
> "q":"f_dv_multi:[-4.3 TO -4.3]"}},
> "response":{"numFound":1,"start":0,"docs":[
> {
> "id":"test",
> "f_dv_multi":[-4.3],
> "f_dv_single":-4.3,
> "_version_":1512962117004689408}]
> }}
> $ curl
> 'http://localhost:8983/solr/gettingstarted/query?q=f_dv_single:%5B-4.3+TO+-4.3%5D'
> {
> "responseHeader":{
> "status":0,
> "QTime":0,
> "params":{
> "q":"f_dv_single:[-4.3 TO -4.3]"}},
> "response":{"numFound":0,"start":0,"docs":[]
> }}
> {noformat}
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