Field

July 25, 2019 13:38

Specification

{
  "name": String,
  "description": String,
  "length": Long
  "fieldType": <field type spec>,
  "fieldIndex": Integer
}

Field Name	Type	Description	Required	Default
name	String	Field name.	Required
description	String	Expanded field information.		None
length	Long	Maximum length of a string that can be stored in this field. Applicable to `string` field type.		None
fieldType	String or object	Field data type. Supported types: `int`, `decimal`, `string`, `long`, `float`, `double`, `timestamp`, `date`, `boolean`, `binary`, `array`, `map`, `struct`. `int`, `decimal`, `string`, `long`, `float`, `double`, `timestamp`, `date`, `boolean`, `binary` fields are specified with string values. `array`, `map`, and `struct` fields are specified with JSON.	Required
fieldIndex	Integer	Order of the fields in the table.		None

{
  "dataType": "array",
  "elementType": <field type spec>
}

{
  "dataType": "map",
  "keyType": <field type spec>,
  "valueType": <field type spec>
}

{
  "dataType": "struct",
  "fields": [
    {
      "name": String,
      "fieldType": <field type spec>
    }
  ]
}

{
  "name": "price",
  "description": "This is the price for which the product sold.",
  "fieldType": "long"
}