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From "Mark Miller (JIRA)" <j...@apache.org>
Subject [jira] Commented: (SOLR-1483) Example schema is confusing with int, tint and pint fields
Date Mon, 05 Oct 2009 14:07:31 GMT

    [ https://issues.apache.org/jira/browse/SOLR-1483?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12762181#action_12762181
] 

Mark Miller commented on SOLR-1483:
-----------------------------------

Attaching that javadoc from Lucene:

 * <p>Good values for <code>precisionStep</code> are depending on usage
and data type:
 * <ul>
 *  <li>The default for all data types is <b>4</b>, which is used, when
no <code>precisionStep</code> is given.
 *  <li>Ideal value in most cases for <em>64 bit</em> data types <em>(long,
double)</em> is <b>6</b> or <b>8</b>.
 *  <li>Ideal value in most cases for <em>32 bit</em> data types <em>(int,
float)</em> is <b>4</b>.
 *  <li>For low cardinality fields larger precision steps are good. If the cardinality
is &lt; 100, it is
 *  fair to use {@link Integer#MAX_VALUE} (see below).

> Example schema is confusing with int, tint and pint fields
> ----------------------------------------------------------
>
>                 Key: SOLR-1483
>                 URL: https://issues.apache.org/jira/browse/SOLR-1483
>             Project: Solr
>          Issue Type: Bug
>          Components: documentation
>            Reporter: Shalin Shekhar Mangar
>             Fix For: 1.4
>
>
> Example schema defines int (TrieIntField), tint (TrieIntField) and pint (IntField) which
is confusing. In particular, the comments for int fields tell users to use tint types (which
is the same thing).
> Let us remove tint, tlong, tdouble, tdate types from example schemas and fix the comments
- carefully noting the things trie fields do not work with.

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