Puneet Sharma created SOLR-17699:
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Summary: High Query Time in Solr When Using OR with frange in fq
Key: SOLR-17699
URL: https://issues.apache.org/jira/browse/SOLR-17699
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Affects Versions: 9.6.1
Reporter: Puneet Sharma
h3. High Query Time in Solr When Using {{OR}} with {{frange}} in {{fq}}
I am experiencing high query times in Solr when using an {{fq}} filter that
combines an {{OR}} condition with {{{}frange{}}}. The response time
significantly increases compared to queries that do not use this combination.
h4. Query Example
{{fq=\{!cache=false tag=prm}field:value OR \{!frange l=1 u=1 v=$funcQuery}}}
Here, {{$funcQuery}} is a function query that retrieves documents dynamically
based on dynamic parameters.
h4. Observations
* When I use just {{{}{!frange l=1 u=1 v=$funcQuery}{}}}, the query executes
quickly[20ms].
* When I use {{{!cache=false tag=prm}field:value}} alone, the query is also
fast.
* However, when combining both with {{{}OR{}}}, the query time increases
significantly [700ms].
* The dataset is relatively large, but other queries with similar complexity
run efficiently.
h4. Questions
# Why does the {{OR}} operation with {{frange}} cause a significant increase
in query time?
# Are there any optimizations or alternative query structures that could
improve performance?
# Would it help to restructure how function queries and filters are applied in
this case?
# Is there any alternative for frange for this use case because in our use
case, this cannot be done at index time because the function parameters change
very frequently?
Any insights or suggestions would be greatly appreciated!
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