Cheng Lian created SPARK-3421:
---------------------------------
Summary: StructField.toString should quote the name field to allow
arbitrary character as struct field name
Key: SPARK-3421
URL: https://issues.apache.org/jira/browse/SPARK-3421
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 1.0.2
Reporter: Cheng Lian
The original use case is something like this:
{code}
// JSON snippet with "illegal" characters in field names
val json =
"""{ "a(b)": { "c(d)": "hello" } }""" ::
"""{ "a(b)": { "c(d)": "world" } }""" ::
Nil
val jsonSchemaRdd = sqlContext.jsonRDD(sparkContext.makeRDD(json))
jsonSchemaRdd.saveAsParquetFile("/tmp/file.parquet")
java.lang.Exception: java.lang.RuntimeException: Unsupported dataType:
StructType(ArrayBuffer(StructField(a(b),StructType(ArrayBuffer(StructField(c(d),StringType,true))),true))),
[1.37] failure: `,' expected but `(' found
{code}
The reason is that, the {{DataType}} parser only allows {{\[a-zA-Z0-9_\]*}} as
struct field name.
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