Athena / Client / start_query_execution

start_query_execution#

Athena.Client.start_query_execution(**kwargs)#

Runs the SQL query statements contained in the Query. Requires you to have access to the workgroup in which the query ran. Running queries against an external catalog requires GetDataCatalog permission to the catalog. For code samples using the Amazon Web Services SDK for Java, see Examples and Code Samples in the Amazon Athena User Guide.

See also: AWS API Documentation

Request Syntax

response = client.start_query_execution(
    QueryString='string',
    ClientRequestToken='string',
    QueryExecutionContext={
        'Database': 'string',
        'Catalog': 'string'
    },
    ResultConfiguration={
        'OutputLocation': 'string',
        'EncryptionConfiguration': {
            'EncryptionOption': 'SSE_S3'|'SSE_KMS'|'CSE_KMS',
            'KmsKey': 'string'
        },
        'ExpectedBucketOwner': 'string',
        'AclConfiguration': {
            'S3AclOption': 'BUCKET_OWNER_FULL_CONTROL'
        }
    },
    WorkGroup='string',
    ExecutionParameters=[
        'string',
    ],
    ResultReuseConfiguration={
        'ResultReuseByAgeConfiguration': {
            'Enabled': True|False,
            'MaxAgeInMinutes': 123
        }
    }
)
Parameters:

  • QueryString (string) –

    [REQUIRED]

    The SQL query statements to be executed.

  • ClientRequestToken (string) –

    A unique case-sensitive string used to ensure the request to create the query is idempotent (executes only once). If another StartQueryExecution request is received, the same response is returned and another query is not created. An error is returned if a parameter, such as QueryString, has changed. A call to StartQueryExecution that uses a previous client request token returns the same QueryExecutionId even if the requester doesn’t have permission on the tables specified in QueryString.

    Warning

    This token is listed as not required because Amazon Web Services SDKs (for example the Amazon Web Services SDK for Java) auto-generate the token for users. If you are not using the Amazon Web Services SDK or the Amazon Web Services CLI, you must provide this token or the action will fail.

    This field is autopopulated if not provided.

  • QueryExecutionContext (dict) –

    The database within which the query executes.

    • Database (string) –

      The name of the database used in the query execution. The database must exist in the catalog.

    • Catalog (string) –

      The name of the data catalog used in the query execution.

  • ResultConfiguration (dict) –

    Specifies information about where and how to save the results of the query execution. If the query runs in a workgroup, then workgroup’s settings may override query settings. This affects the query results location. The workgroup settings override is specified in EnforceWorkGroupConfiguration (true/false) in the WorkGroupConfiguration. See WorkGroupConfiguration$EnforceWorkGroupConfiguration.

    • OutputLocation (string) –

      The location in Amazon S3 where your query and calculation results are stored, such as s3://path/to/query/bucket/. To run the query, you must specify the query results location using one of the ways: either for individual queries using either this setting (client-side), or in the workgroup, using WorkGroupConfiguration. If none of them is set, Athena issues an error that no output location is provided. If workgroup settings override client-side settings, then the query uses the settings specified for the workgroup. See WorkGroupConfiguration$EnforceWorkGroupConfiguration.

    • EncryptionConfiguration (dict) –

      If query and calculation results are encrypted in Amazon S3, indicates the encryption option used (for example, SSE_KMS or CSE_KMS) and key information. This is a client-side setting. If workgroup settings override client-side settings, then the query uses the encryption configuration that is specified for the workgroup, and also uses the location for storing query results specified in the workgroup. See WorkGroupConfiguration$EnforceWorkGroupConfiguration and Workgroup Settings Override Client-Side Settings.

      • EncryptionOption (string) – [REQUIRED]

        Indicates whether Amazon S3 server-side encryption with Amazon S3-managed keys ( SSE_S3), server-side encryption with KMS-managed keys ( SSE_KMS), or client-side encryption with KMS-managed keys ( CSE_KMS) is used.

        If a query runs in a workgroup and the workgroup overrides client-side settings, then the workgroup’s setting for encryption is used. It specifies whether query results must be encrypted, for all queries that run in this workgroup.

      • KmsKey (string) –

        For SSE_KMS and CSE_KMS, this is the KMS key ARN or ID.

    • ExpectedBucketOwner (string) –

      The Amazon Web Services account ID that you expect to be the owner of the Amazon S3 bucket specified by ResultConfiguration$OutputLocation. If set, Athena uses the value for ExpectedBucketOwner when it makes Amazon S3 calls to your specified output location. If the ExpectedBucketOwner Amazon Web Services account ID does not match the actual owner of the Amazon S3 bucket, the call fails with a permissions error.

      This is a client-side setting. If workgroup settings override client-side settings, then the query uses the ExpectedBucketOwner setting that is specified for the workgroup, and also uses the location for storing query results specified in the workgroup. See WorkGroupConfiguration$EnforceWorkGroupConfiguration and Workgroup Settings Override Client-Side Settings.

    • AclConfiguration (dict) –

      Indicates that an Amazon S3 canned ACL should be set to control ownership of stored query results. Currently the only supported canned ACL is BUCKET_OWNER_FULL_CONTROL. This is a client-side setting. If workgroup settings override client-side settings, then the query uses the ACL configuration that is specified for the workgroup, and also uses the location for storing query results specified in the workgroup. For more information, see WorkGroupConfiguration$EnforceWorkGroupConfiguration and Workgroup Settings Override Client-Side Settings.

      • S3AclOption (string) – [REQUIRED]

        The Amazon S3 canned ACL that Athena should specify when storing query results, including data files inserted by Athena as the result of statements like CTAS or INSERT INTO. Currently the only supported canned ACL is BUCKET_OWNER_FULL_CONTROL. If a query runs in a workgroup and the workgroup overrides client-side settings, then the Amazon S3 canned ACL specified in the workgroup’s settings is used for all queries that run in the workgroup. For more information about Amazon S3 canned ACLs, see Canned ACL in the Amazon S3 User Guide.

  • WorkGroup (string) – The name of the workgroup in which the query is being started.

  • ExecutionParameters (list) –

    A list of values for the parameters in a query. The values are applied sequentially to the parameters in the query in the order in which the parameters occur.

    • (string) –

  • ResultReuseConfiguration (dict) –

    Specifies the query result reuse behavior for the query.

    • ResultReuseByAgeConfiguration (dict) –

      Specifies whether previous query results are reused, and if so, their maximum age.

      • Enabled (boolean) – [REQUIRED]

        True if previous query results can be reused when the query is run; otherwise, false. The default is false.

      • MaxAgeInMinutes (integer) –

        Specifies, in minutes, the maximum age of a previous query result that Athena should consider for reuse. The default is 60.

Return type:

dict

Returns:

Response Syntax

{
    'QueryExecutionId': 'string'
}

Response Structure

  • (dict) –

    • QueryExecutionId (string) –

      The unique ID of the query that ran as a result of this request.

Exceptions