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make sure we add the _uid as the first field in a doc 

this will improve early termination loading times, but requires potential improvements in Lucene in terms of decompression
This commit is contained in:
Shay Banon 2013-08-07 23:27:17 +02:00
parent 6c91ff83f2
commit c7d5881686
1 changed files with 3 additions and 2 deletions
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5
src/main/java/org/elasticsearch/index/mapper/DocumentMapper.java
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@ -162,7 +162,10 @@ public class DocumentMapper implements ToXContent {
idFieldMapper = new IdFieldMapper(fieldType);
}
}
// UID first so it will be the first stored field to load (so will benefit from "fields: []" early termination
this.rootMappers.put(UidFieldMapper.class, new UidFieldMapper());
this.rootMappers.put(IdFieldMapper.class, idFieldMapper);
this.rootMappers.put(RoutingFieldMapper.class, new RoutingFieldMapper());
// add default mappers, order is important (for example analyzer should come before the rest to set context.analyzer)
this.rootMappers.put(SizeFieldMapper.class, new SizeFieldMapper());
this.rootMappers.put(IndexFieldMapper.class, new IndexFieldMapper());
@ -171,10 +174,8 @@ public class DocumentMapper implements ToXContent {
this.rootMappers.put(AnalyzerMapper.class, new AnalyzerMapper());
this.rootMappers.put(AllFieldMapper.class, new AllFieldMapper());
this.rootMappers.put(BoostFieldMapper.class, new BoostFieldMapper());
this.rootMappers.put(RoutingFieldMapper.class, new RoutingFieldMapper());
this.rootMappers.put(TimestampFieldMapper.class, new TimestampFieldMapper());
this.rootMappers.put(TTLFieldMapper.class, new TTLFieldMapper());
this.rootMappers.put(UidFieldMapper.class, new UidFieldMapper());
// don't add parent field, by default its "null"
}