On May 10, 2004, at 8:13 AM, David Townsend wrote:
We have a number of small indices and also an uber-index made up of all the smaller indices. We need to get do a search across a number of the sub-indices and get back a hit count from each. Currently we search each index, we've also tried running multiple queries against the uber-index, with a field denoting which subindex we are interested in. Obviously this approach is very slow. Is there any way to use MultiSearcher to do this? The problem we currently have with MultiSearcher is there seems no way to tell how many hits came from each index. Is there a recommended way to do this, or should we modify MultiSearcher to return information about the hits on each index.
any ideas?
Instead of running multiple queries against the uber-index, try making a single "uber" query that builds up boolean query clauses that select each of the small "index" fields you're interested in.
Also, perhaps using a Filter to narrow down the search space on the uber-index is more along the lines of what you're after?
Erik
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