public List <DynamicQueryToIndexMatcher.Explanation> ExplainIndexSelection(IndexQueryServerSide query, out string indexName)
{
var map = DynamicQueryMapping.Create(query);
var explanations = new List <DynamicQueryToIndexMatcher.Explanation>();
var dynamicQueryToIndex = new DynamicQueryToIndexMatcher(_indexStore);
var match = dynamicQueryToIndex.Match(map, explanations);
indexName = match.IndexName;
return(explanations);
}
public List <DynamicQueryToIndexMatcher.Explanation> ExplainIndexSelection(string dynamicIndexName, IndexQueryServerSide query)
{
var collection = dynamicIndexName.Substring(DynamicIndexPrefix.Length);
var map = DynamicQueryMapping.Create(collection, query);
var explanations = new List <DynamicQueryToIndexMatcher.Explanation>();
var dynamicQueryToIndex = new DynamicQueryToIndexMatcher(_indexStore);
dynamicQueryToIndex.Match(map, explanations);
return(explanations);
}
private bool TryMatchExistingIndexToQuery(DynamicQueryMapping map, out Index index)
{
var dynamicQueryToIndex = new DynamicQueryToIndexMatcher(_indexStore);
var matchResult = dynamicQueryToIndex.Match(map);
switch (matchResult.MatchType)
{
case DynamicQueryMatchType.Complete:
case DynamicQueryMatchType.CompleteButIdle:
index = _indexStore.GetIndex(matchResult.IndexName);
if (index == null)
{
// the auto index was deleted
break;
}
return(true);
case DynamicQueryMatchType.Partial:
// At this point, we found an index that has some fields we need and
// isn't incompatible with anything else we're asking for
// We need to clone that other index
// We need to add all our requested indexes information to our cloned index
// We can then use our new index instead
var currentIndex = _indexStore.GetIndex(matchResult.IndexName);
if (currentIndex != null)
{
if (map.SupersededIndexes == null)
{
map.SupersededIndexes = new List <Index>();
}
map.SupersededIndexes.Add(currentIndex);
map.ExtendMappingBasedOn((AutoIndexDefinitionBase)currentIndex.Definition);
}
break;
}
index = null;
return(false);
}