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https://issues.apache.org/jira/browse/OAK-2980?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14581999#comment-14581999
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Tommaso Teofili edited comment on OAK-2980 at 6/11/15 3:00 PM:
---------------------------------------------------------------
possible implementation approach in {{SolrQueryIndex}}
{code}
public long getSize(SizePrecision precision, long max) {
long estimate = -1;
switch (precision) {
case EXACT:
// query solr or use Solr result header's 'numFound'
// ...
break;
case APPROXIMATION:
// estimate result size
estimate = estimator.estimate(plan.getFilter());
break;
case FAST_APPROXIMATION:
// use already computed index plan's estimate
estimate = plan.getEstimatedEntryCount();
break;
}
return Math.min(estimate, max);
}
{code}
was (Author: teofili):
possible implementation approach in {{SolrQueryIndex}}
{code}
public long getSize(SizePrecision precision, long max) {
long estimate = -1;
switch (precision) {
case EXACT:
// query solr or use Solr result header's 'numFound'
// ...
break;
case APPROXIMATION:
// estimate result size
estimate = estimator.estimate(plan.getFilter());
break;
case FAST_APPROXIMATION:
// use already computed index plan's estimate
estimate = plan.getEstimatedEntryCount();
break;
}
return estimate;
}
{code}
> Fast result size estimate in Solr index
> ---------------------------------------
>
> Key: OAK-2980
> URL: https://issues.apache.org/jira/browse/OAK-2980
> Project: Jackrabbit Oak
> Issue Type: New Feature
> Components: solr
> Reporter: Tommaso Teofili
> Assignee: Tommaso Teofili
> Fix For: 1.3.1
>
>
> Fast result size estimate has been implemented in OAK-2928 for Lucene, it'd
> be good to have it for Solr index too.
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