Question about autocomplete feature

[Aleksey Gogolev]

Hello.

I'm trying to implement autocomplete feature using the snippet posted
by Dan.
(http://mail-archives.apache.org/mod_mbox/lucene-solr-user/200807.mbox/[EMAIL 
PROTECTED])

Here is the snippet:

<fieldType name="autocomplete" class="solr.TextField">
        <analyzer type="index">
            <tokenizer class="solr.KeywordTokenizerFactory"/>
            <filter class="solr.LowerCaseFilterFactory" />
            <filter class="solr.PatternReplaceFilterFactory"
pattern="([^a-z0-9])" replacement="" replace="all" />
            <filter class="solr.EdgeNGramFilterFactory"
maxGramSize="100" minGramSize="1" />
        </analyzer>
        <analyzer type="query">
            <tokenizer class="solr.KeywordTokenizerFactory"/>
            <filter class="solr.LowerCaseFilterFactory" />
            <filter class="solr.PatternReplaceFilterFactory"
pattern="([^a-z0-9])" replacement="" replace="all" />
            <filter class="solr.PatternReplaceFilterFactory"
pattern="^(.{20})(.*)?" replacement="$1" replace="all" />
        </analyzer>
</fieldType>
...
<field name="ac" type="autocomplete" indexed="true" stored="true"
required="false" />

First I decided to make it working for solr example. So I pasted the
snippet to schema.xml. Then I edited exampledocs/hd.xml, I added the
"ac" field to each doc. Value of "ac" field is a copy of name filed:

<add>
<doc>
  <field name="id">SP2514N</field>
  <field name="name">Samsung SpinPoint P12 SP2514N - hard drive - 250 GB - 
ATA-133</field>
  <field name="ac">Samsung SpinPoint P12 SP2514N - hard drive - 250 GB - 
ATA-133</field>
  <field name="manu">Samsung Electronics Co. Ltd.</field>
  <field name="cat">electronics</field>
  <field name="cat">hard drive</field>
  <field name="features">7200RPM, 8MB cache, IDE Ultra ATA-133</field>
  <field name="features">NoiseGuard, SilentSeek technology, Fluid Dynamic 
Bearing (FDB) motor</field>
  <field name="price">92</field>
  <field name="popularity">6</field>
  <field name="inStock">true</field>
</doc>

<doc>
  <field name="id">6H500F0</field>
  <field name="name">Maxtor DiamondMax 11 - hard drive - 500 GB - 
SATA-300</field>
  <field name="ac">Maxtor DiamondMax 11 - hard drive - 500 GB - SATA-300</field>
  <field name="manu">Maxtor Corp.</field>
  <field name="cat">electronics</field>
  <field name="cat">hard drive</field>
  <field name="features">SATA 3.0Gb/s, NCQ</field>
  <field name="features">8.5ms seek</field>
  <field name="features">16MB cache</field>
  <field name="price">350</field>
  <field name="popularity">6</field>
  <field name="inStock">true</field>
</doc>
</add>

Then I clean solr index, posted hd.xml and restarted solr server. But
when I'm trying to search for "samsu" (the part of word "samsung") I
still get no result. Seems like solr treats "ac" field like the
regular field. 

What did I do wrong?

Thanks in advance.

--
Aleksey Gogolev
developer, 
dev.co.ua
Aleksey