[ aws . athena ]

get-data-catalog

Description

Returns the specified data catalog.

See also: AWS API Documentation

See ‘aws help’ for descriptions of global parameters.

Synopsis

  get-data-catalog
--name <value>
[--cli-input-json | --cli-input-yaml]
[--generate-cli-skeleton <value>]

Options

--name (string)

The name of the data catalog to return.

--cli-input-json | --cli-input-yaml (string) Reads arguments from the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, those values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally. This may not be specified along with --cli-input-yaml.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. Similarly, if provided yaml-input it will print a sample input YAML that can be used with --cli-input-yaml. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

See ‘aws help’ for descriptions of global parameters.

Examples

To return information about a data catalog

The following get-data-catalog example returns information about the dynamo_db_catalog data catalog.

aws athena get-data-catalog \
    --name dynamo_db_catalog

Output:

{
    "DataCatalog": {
        "Name": "dynamo_db_catalog",
        "Description": "DynamoDB Catalog",
        "Type": "LAMBDA",
        "Parameters": {
            "catalog": "dynamo_db_catalog",
            "metadata-function": "arn:aws:lambda:us-west-2:111122223333:function:dynamo_db_lambda",
            "record-function": "arn:aws:lambda:us-west-2:111122223333:function:dynamo_db_lambda"
        }
    }
}

For more information, see Showing Catalog Details: get-data-catalog in the Amazon Athena User Guide.

Output

DataCatalog -> (structure)

The data catalog returned.

Name -> (string)

The name of the data catalog. The catalog name must be unique for the Amazon Web Services account and can use a maximum of 127 alphanumeric, underscore, at sign, or hyphen characters. The remainder of the length constraint of 256 is reserved for use by Athena.

Description -> (string)

An optional description of the data catalog.

Type -> (string)

The type of data catalog to create: LAMBDA for a federated catalog, HIVE for an external hive metastore, or GLUE for an Glue Data Catalog.

Parameters -> (map)

Specifies the Lambda function or functions to use for the data catalog. This is a mapping whose values depend on the catalog type.

• For the HIVE data catalog type, use the following syntax. The metadata-function parameter is required. The sdk-version parameter is optional and defaults to the currently supported version. ``metadata-function=*lambda_arn* , sdk-version=*version_number* ``

• For the LAMBDA data catalog type, use one of the following sets of required parameters, but not both.

  • If you have one Lambda function that processes metadata and another for reading the actual data, use the following syntax. Both parameters are required. ``metadata-function=*lambda_arn* , record-function=*lambda_arn* ``

  • If you have a composite Lambda function that processes both metadata and data, use the following syntax to specify your Lambda function. ``function=*lambda_arn* ``

• The GLUE type takes a catalog ID parameter and is required. The `` catalog_id `` is the account ID of the Amazon Web Services account to which the Glue catalog belongs. ``catalog-id=*catalog_id* ``

  • The GLUE data catalog type also applies to the default AwsDataCatalog that already exists in your account, of which you can have only one and cannot modify.

  • Queries that specify a Glue Data Catalog other than the default AwsDataCatalog must be run on Athena engine version 2.

key -> (string)

value -> (string)