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From "Uwe Schindler (JIRA)" <>
Subject [jira] Commented: (LUCENE-1590) Stored-only fields automatically enable norms and tf when added to document
Date Tue, 07 Apr 2009 23:39:12 GMT


Uwe Schindler commented on LUCENE-1590:

bq. The problem is: Luke does not show the omitTf thing, as this flag seems not be loaded
by IndexReader, so I cannot find out if the omitTf was really done in index (Luke does not
show this flag even for fields that were added once with omitTf).

Ahhh, I found the problem: FieldsReader does not set this flag in the generated Field instances
with the flag from FieldInfo. Patch follows shortly that fixes this, too. My Luke now displays
this flag, too.

> Stored-only fields automatically enable norms and tf when added to document
> ---------------------------------------------------------------------------
>                 Key: LUCENE-1590
>                 URL:
>             Project: Lucene - Java
>          Issue Type: Bug
>          Components: Index
>    Affects Versions: 2.4, 2.4.1, 2.9
>            Reporter: Uwe Schindler
>             Fix For: 2.9
>         Attachments: LUCENE-1590.patch
> During updating my internal components to the new TrieAPI, I have seen the following:
> I index a lot of numeric fields with trie encoding omitting norms and term frequency.
This works great. Luke shows that both is omitted.
> As I sometimes also want to have the components of the field stored and want to use the
same field name for it. So I add additionally the field again to the document, but stored
only (as the Field c'tor using a TokenStream cannot additionally store the field). As it is
stored only, I thought, that I can left out explicit setting of omitNorms and omitTermFreqAndPositions.
After adding the stored-only-without-omits field, Luke shows all fields with norms enabled.
I am not sure, if the norms/tf were really added to the index, but Luke shows a value for
the norms and FieldInfo has it enabled.
> In my opinion, this is not intuitive, o.a.l.document.Field  should switch both omit*
options on when storing fields only (and also disable other indexing-only options). Alternatively
the internal FieldInfo.update(boolean isIndexed, boolean storeTermVector, boolean storePositionWithTermVector,
boolean storeOffsetWithTermVector, boolean omitNorms, boolean storePayloads, boolean omitTermFreqAndPositions)
should only change the omit* and other options, if the isIndexed parameter (not this.isIndexed)
is also true, elsewhere leave it as it is.
> In principle, when adding a stored-only field, any indexing-specific options should not
be changed in FieldInfo. If the field was indexed with norms before, norms should stay enabled
(but this would be the default as it is).

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