Hi Guys,
I have been trying to understand DocValues and get some hands on and have
observed few things.
I have added LongDocValuesField to the documents like:
doc.add(new LongDocValuesField("id",1));
1> In 4.0 i saw that there are two versions for docvalues,
RAM Resident(using Sources.getSOurces()) & On
Disk(Sources.getDirectSources()).
But in 4.2 i get LongDocValues using
"context.reader().getNumericDocValues(field) ". Which type is this ?
If this RAM based then is there any Disk-Based equivalent ?
2> Can DocValuesField be used for search ? I coudn't. Did i miss something?
"searcher.search(parser.parse("docvaluedfield:value"),100)"
I am able to use for sorting.
If possible i want to avoid having a stored field in index with same
"name" & "Value" of DocValueField of same
document and perform search.
3> I have a reader opened on DirectoryReader with the docBaseInParent value
as 0 (first documents internal ID).
Even when i delete the first added document (with internal docID = 0)
using some query the docBaseInParent is not
updated to 1(next documents internal ID). I have committed writer,
forceMergeDeletes but it's the same.
I have also seen getLiveDocs().
Just curious to know the reasons for not updating the docBase ?
Thanks,
Arun
