[GitHub] kamaci opened a new issue #7027: Auto Detection of Field Types

[GitBox <gi...@apache.org>]

kamaci opened a new issue #7027: Auto Detection of Field Types
URL: https://github.com/apache/incubator-druid/issues/7027
 
 
   I can define auto type detection for timestamp as follows:
   
   ```
   "timestampSpec" : {
        "format" : "auto",
        "column" : "ts"
   }
   ```
   
   In similar manner, I cannot detect field type via parseSpec. I mean:
   
   `{"ts":"2018-01-01T03:35:45Z","app_token":"guid1","eventName":"app-x","properties-key1":"123"}
   `
   
   `{"ts":"2018-01-01T03:35:45Z","app_token":"guid2","eventName":"app-x","properties-key2":123}
   `
   
   Both `properties-key1` and `properties-key2` are indexed as `String`. I expect to index `properties-key2` as `Integer` at Druid.
   
   We should implement auto field type detection into Druid for a newly created field.
   
   **PS:** I've started a conversation about this task at mail list and than created an issue for it: [Druid Auto Field Type Detection](https://lists.apache.org/thread.html/f39b9d8284ab9604bc4dde2ca38c515def730c779f735cb47531506b@<dev.druid.apache.org>)
   

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