Hi Peter,
ES allows you to defined dynamic mappings there you can determine the
mapping of a property based on the evaluation of some conditions.
http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/mapping-dynamic-mapping.html
Oliver
Am 12.01.14 17:16, schrieb Peter Webber:
I had a look at the mapping ES created automatically for one of my
indices, and found something that's not quite right:
....
||| "annotations"| |: { |
|||"properties"| |: { |
|||"ids"| |: { |
|||"properties"| |: { |
|||"hashMap"| |: { |
|||"properties"| |: { |
|||"N_10290607"| |: { |
|||"type"| |: ||"double"|
|||}, |
|||"A_1038408"| |: { |
|||"type"| |: ||"double"|
|||}, |
|||"A_11585994"| |: { |
|||"type"| |: ||"double"|
|||}, |
|||"B_1245677"| |: { |
|||"type"| |: ||"double"|
|||}, |
|||"B_1269810"| |: { |
|||"type"| |: ||"double"|
|||}, |
|||"C_15680034"| |: { |
|||"type"| |: ||"double"|
|||}, |
|||"N_1654171"| |: { |
|||"type"| |: ||"double"|
|||},
...
I use Gson to convert Java classes to Json and then directly put them
into ES. One of the classes I use has a HashMap<String, Double> as a
central piece, where it stores its key-value pairs. It's really just
that: the keys are stings, the values doubles. ES however creates a
mapping for every key of the hashmap as you can see above.
Does someone here know what mapping I need to define to avoid that?
Also: Can I change this mapping on the already existing index, or do I
have to create a new index, then create a mapping, then copy over the
data from the old index?
Many Thanks!
|
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