elasticsearch: idf in shards

one-shard.sh

echo delete index
curl -XDELETE 'http://127.0.0.1:9200/shardtermfrequency?pretty=1'
echo create index
curl -XPUT 'http://127.0.0.1:9200/shardtermfrequency?pretty=1' -d '{
  "settings" : {
    "index" : {
      "number_of_shards" : 1
    }
  }
}'
echo create type
curl -XPUT 'http://127.0.0.1:9200/shardtermfrequency/_mapping/file?pretty=1'
echo insert files
curl -XPUT 'http://127.0.0.1:9200/shardtermfrequency/file/1?routing=0&pretty=1' -d'{
  "fileName":"Elastic Match Shard0"
}'
curl -XPUT 'http://127.0.0.1:9200/shardtermfrequency/file/2?routing=1&pretty=1' -d'{
  "fileName":"Elastic Match Shard1"
}'
curl -XPUT 'http://127.0.0.1:9200/shardtermfrequency/file/3?routing=1&pretty=1' -d'{
  "fileName":"Elastic"
}'
echo flush
curl -XPOST 'http://127.0.0.1:9200/shardtermfrequency/_flush?pretty=1'
echo search
curl -XGET 'http://127.0.0.1:9200/shardtermfrequency/file/_search?pretty=1' -d '{
  "size":2,
  "query":{
    "match":{
      "fileName":"Elastic Match"
    }
  }
}'

two-shards.sh

echo delete index
curl -XDELETE 'http://127.0.0.1:9200/shardtermfrequency?pretty=1'
echo create index
curl -XPUT 'http://127.0.0.1:9200/shardtermfrequency?pretty=1' -d '{
  "settings" : {
    "index" : {
      "number_of_shards" : 2
    }
  }
}'
echo create type
curl -XPUT 'http://127.0.0.1:9200/shardtermfrequency/_mapping/file?pretty=1'
echo insert files
curl -XPUT 'http://127.0.0.1:9200/shardtermfrequency/file/1?routing=0&pretty=1' -d'{
  "fileName":"Elastic Match Shard0"
}'
curl -XPUT 'http://127.0.0.1:9200/shardtermfrequency/file/2?routing=1&pretty=1' -d'{
  "fileName":"Elastic Match Shard1"
}'
curl -XPUT 'http://127.0.0.1:9200/shardtermfrequency/file/3?routing=1&pretty=1' -d'{
  "fileName":"Elastic"
}'
echo flush
curl -XPOST 'http://127.0.0.1:9200/shardtermfrequency/_flush?pretty=1'
echo search
curl -XGET 'http://127.0.0.1:9200/shardtermfrequency/file/_search?pretty=1' -d '{
  "size":2,
  "query":{
    "match":{
      "fileName":"Elastic Match"
    }
  }
}'