[ 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. The generated JSON skeleton is not stable between versions of the AWS CLI and there are no backwards compatibility guarantees in the JSON skeleton generated.

See ‘aws help’ for descriptions of global parameters.

Examples

Note

To use the following examples, you must have the AWS CLI installed and configured. See the Getting started guide in the AWS CLI User Guide for more information.

Unless otherwise stated, all examples have unix-like quotation rules. These examples will need to be adapted to your terminal’s quoting rules. See Using quotation marks with strings in the AWS CLI User Guide .

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)