I am using elasticsearch 1.4 . I am facing problem in filters in elasticssearch as :
If I write "20 Inch", I will create filter two filter with same product counter like 
20 (7)
Inch(7)
So basically it will spit on space. How do i solve it. Here is my code snippet.
private String getProductMappings() {
XContentBuilder builder = null;
try {
builder = XContentFactory.jsonBuilder().startObject().startObject("product")
.startObject("properties");
builder.startObject("title").field("type", "multi_field").field("include_in_root", true)
.startObject("fields")
.startObject("title").field("type", "string").field("analyzer", "title_full_ana").endObject()
.startObject("title_partial").field("type", "string").field("search_analyzer", "title_full_ana").field("index_analyzer", "title_partial_ana").endObject()
.endObject()
.endObject()
.startObject("vendor").field("type", "nested").field("include_in_root", true)
.startObject("properties").startObject("address").field("type", "nested").field("include_in_root", true)
.startObject("properties")
.startObject("geoLocation").field("type", "geo_point").field("include_in_root", true).endObject()
.endObject()
.endObject()
.endObject()
.endObject()
.startObject("menuSection").field("type", "nested").field("include_in_root", true).field("store", "yes")
.startObject("sectionName").field("type","string").field("tokenizer","keyword").field("index","not_analyzed").field("store","yes").endObject()
.endObject()
.startObject("customProperties").field("type", "nested").field("include_in_root", true).field("store", "yes").endObject()
.startObject("inventoryItems").field("type", "nested").field("include_in_root", true).field("store", "yes")
.startObject("properties")
.startObject("sellingPrice").field("type","double").field("store","yes").endObject()
.startObject("size").field("type","string").field("store","yes").field("tokenizer","keyword").field("index","not_analyzed").endObject()
.endObject()
.endObject()
.startObject("parentCategories").field("type", "nested").field("include_in_root", true).field("store", "yes")
.startObject("properties")
.startObject("sectionName").field("type","string").field("include_in_root", true).field("index_analyzer","whitespace_analyzer").field("search_analyzer","whitespace_analyzer").endObject()
/*.startObject("sectionName").field("tokenizer","lowercase").field("type","string").field("index","not_analyzed").field("store","yes").endObject()*/
.endObject()
.endObject()
.startObject("path").field("type","string").field("index_analyzer","hierarchy_analyzer").field("include_in_root", true).field("search_analyzer","standard").field("store","yes").endObject()
.endObject()
.endObject().endObject();
return builder.string();
} catch (IOException e) {
e.printStackTrace();
}
return null;
}