[LUCENE-3065] NumericField should be stored in binary format in index (matching Solr's format)

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 3.2, 4.0-ALPHA
• Component/s: core/index
• Lucene Fields: New
• Assignee: Uwe Schindler
• Reporter: Michael McCandless
• Created: 03/May/11 17:39
• Updated: 28/Aug/22 12:45
• Resolved: 07/May/11 13:14

Description

(Spinoff of LUCENE-3001)

Today when writing stored fields we don't record that the field was a NumericField, and so at IndexReader time you get back an "ordinary" Field and your number has turned into a string. See https://issues.apache.org/jira/browse/LUCENE-1701?focusedCommentId=12721972&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-12721972

We have spare bits already in stored fields, so, we should use one to record that the field is numeric, and then encode the numeric field in Solr's more-compact binary format.

A nice side-effect is we fix the long standing issue that you don't get a NumericField back when loading your document.

Issue Links

• is depended upon by: SOLR-2497 Move Solr to new NumericField stored field impl of LUCENE-3065
• relates to: LUCENE-3001 Add TrieFieldHelper lucene so we can write solr compatible Trie* fields w/o solr dependency