Shalin Shekhar Mangar created SOLR-7753:
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Summary: Parse localParams and query object once and re-use when
hanging queries under pivots
Key: SOLR-7753
URL: https://issues.apache.org/jira/browse/SOLR-7753
Project: Solr
Issue Type: Improvement
Components: faceting
Reporter: Shalin Shekhar Mangar
Fix For: 5.3, Trunk
When hanging facet.query under pivots, the query (and localparams) is parsed
for every pivot value. We can avoid it by parsing and caching the query object
just once during FacetComponent#prepare.
As noted by Hoss in SOLR-4212:
{quote}
It's not just an issue of localparams, but also the parsing & construction of
the Query object – doing that once per request (just like the way you've
changed the range faceting to do all the bucket calculation once) could give us
some serious performance savings when facet.query params are hung of of many
and/or large pivot trees. (should just mean a pretty trivial new subclass of
FacetBase that also has a public Query getQuery() accessor)
{quote}
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