union of primitive and complex types

[skamkar]

Greetings,

First - kind thanks for replying to the previous null issue.

In an attempt to avoid this null usage, we've rewritten the schema/data to leverage unions of primitive (string/int/etc) and complex (array/record) types. However, we're running into the following error:

Error in sch$type : $ operator is invalid for atomic vectors

This appears to happen during the sapply routine on the parsing of the union type. Below, JSON/schema pairs have been provided for an (1) int/array case and an (2) int/record case. Any insight or help would be wonderful.

Thanks in advance,
Sean

INT/ARRAY case

JSON:

{
  "dataset": 3,
  "app": {"array": ["423","jim","bob"]}
}

AVSC:

{
  "name": "employee_training_dataset",
  "type": "record",
  "fields": [
    {
      "name": "dataset",
      "type": "int"
    },
    {
      "name": "app",
      "type": ["int",
        {
          "type": "array",
          "items": "string"
        }
      ]
    }
  ]
}

INT/RECORD case

JSON:

{
  "dataset": 3,
  "app": {
    "app_record": {
      "id": 4,
      "address": "main"
    }
  }
}

AVSC:

{
  "name": "employee_training_dataset",
  "type": "record",
  "fields": [
    {
      "name": "dataset",
      "type": "int"
    },
    {
      "name": "app",
      "type": ["int",
        {
          "type": "record",
          "name": "app_record",
          "fields": [
            {
              "name": "id",
              "type": "int"
            },
            {
              "name": "address",
              "type": "string"
            }
          ]
        }
      ]
    }
  ]
}

[jamiefolson]

So in general, we only focused on a few key use cases for unions, so you'll
run into issues using a union of a primitive, like int, and a compound type
like a record or array. There's nothing prohibiting it from getting done,
but it's not a use case we targeted.

Jamie Olson

On Mon, Feb 1, 2016 at 1:52 PM, skamkar notifications@github.com wrote:

Greetings,

First - kind thanks for replying to the previous null issue.

In an attempt to avoid this null usage, we've rewritten the schema/data to
leverage unions of primitive (string/int/etc) and complex (array/record)
types. However, we're running into the following error:

Error in sch$type : $ operator is invalid for atomic vectors

This appears to happen during the sapply routine on the parsing of the
union type. Below, JSON/schema pairs have been provided for an (1)
int/array case and an (2) int/record case. Any insight or help would be
wonderful.

Thanks in advance,
Sean

INT/ARRAY case

JSON:

{
"dataset": 3,
"app": {"array": ["423","jim","bob"]}
}

AVSC:

{
"name": "employee_training_dataset",
"type": "record",
"fields": [
{
"name": "dataset",
"type": "int"
},
{
"name": "app",
"type": ["int",
{
"type": "array",
"items": "string"
}
]
}
]
}

INT/RECORD case

JSON:

{
"dataset": 3,
"app": {
"app_record": {
"id": 4,
"address": "main"
}
}
}

AVSC:

{
"name": "employee_training_dataset",
"type": "record",
"fields": [
{
"name": "dataset",
"type": "int"
},
{
"name": "app",
"type": ["int",
{
"type": "record",
"name": "app_record",
"fields": [
{
"name": "id",
"type": "int"
},
{
"name": "address",
"type": "string"
}
]
}
]
}
]
}

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