GitHub user chenghao-intel opened a pull request:
https://github.com/apache/spark/pull/4492
[SPARK-5706] [SQL] Add json schema inferring method
We need to provide json infer schema API instead of manually provide the
json schema.
```
val completeJsonRecord = """{"struct":{"field1": true, "field2":
92233720368547758070},
"structWithArrayFields":{"field1":[4, 5, 6], "field2":["str1",
"str2"]},
"arrayOfString":["str1", "str2"],
"arrayOfInteger":[1, 2147483647, -2147483648],
@@ -90,7 +111,10 @@ object TestJsonData {
"arrayOfStruct":[{"field1": true, "field2": "str1"}, {"field1":
false}, {"field3": null}],
"arrayOfArray1":[[1, 2, 3], ["str1", "str2"]],
"arrayOfArray2":[[1, 2, 3], [1.1, 2.1, 3.1]]
}"""
val schema = sqlContext.inferJsonSchema(completeJsonRecord)
val jsonDF = sqlContext.jsonFile("/user/myjson", schema)
```
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/chenghao-intel/spark json_inferschema
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/spark/pull/4492.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #4492
----
commit 0768b04c8f549f678a8654305c0e9db9059d7041
Author: Cheng Hao <[email protected]>
Date: 2015-02-10T01:44:54Z
Add json schema inferring method
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