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From "Uwe Schindler (JIRA)" <j...@apache.org>
Subject [jira] Updated: (LUCENE-1590) Stored-only fields automatically enable norms and tf when added to document
Date Wed, 08 Apr 2009 00:08:13 GMT

     [ https://issues.apache.org/jira/browse/LUCENE-1590?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Uwe Schindler updated LUCENE-1590:
----------------------------------

    Attachment: LUCENE-1590.patch

Here the patch that also fixes the missing omitTf settings in FieldsReader.

I will create the TestCase tomorrow, it's to late for that, I want to go to bed now.

Just a note: The behavior in Luke is with this patch a little bit different: Stored-Only fields
now show in Luke always "omitNorms" (O), because this is the default for non-indexed fields.
As soon as a field is added that is indexed and has not explicitely set omitNorms, norms are
enabled again (as noted in the FieldInfo.update() method). So everything behaves correctly,
only the display is now correct in Luke.


> Stored-only fields automatically enable norms and tf when added to document
> ---------------------------------------------------------------------------
>
>                 Key: LUCENE-1590
>                 URL: https://issues.apache.org/jira/browse/LUCENE-1590
>             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, 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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