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[ aws . redshift-data ]

describe-table

Description

Describes the detailed information about a table from metadata in the cluster. The information includes its columns. A token is returned to page through the column list. Depending on the authorization method, use one of the following combinations of request parameters:

  • Secrets Manager - when connecting to a cluster, provide the secret-arn of a secret stored in Secrets Manager which has username and password . The specified secret contains credentials to connect to the database you specify. When you are connecting to a cluster, you also supply the database name, If you provide a cluster identifier (dbClusterIdentifier ), it must match the cluster identifier stored in the secret. When you are connecting to a serverless workgroup, you also supply the database name.
  • Temporary credentials - when connecting to your data warehouse, choose one of the following options:
    • When connecting to a serverless workgroup, specify the workgroup name and database name. The database user name is derived from the IAM identity. For example, arn:iam::123456789012:user:foo has the database user name IAM:foo . Also, permission to call the redshift-serverless:GetCredentials operation is required.
    • When connecting to a cluster as an IAM identity, specify the cluster identifier and the database name. The database user name is derived from the IAM identity. For example, arn:iam::123456789012:user:foo has the database user name IAM:foo . Also, permission to call the redshift:GetClusterCredentialsWithIAM operation is required.
    • When connecting to a cluster as a database user, specify the cluster identifier, the database name, and the database user name. Also, permission to call the redshift:GetClusterCredentials operation is required.

For more information about the Amazon Redshift Data API and CLI usage examples, see Using the Amazon Redshift Data API in the Amazon Redshift Management Guide .

See also: AWS API Documentation

describe-table is a paginated operation. Multiple API calls may be issued in order to retrieve the entire data set of results. You can disable pagination by providing the --no-paginate argument. When using --output text and the --query argument on a paginated response, the --query argument must extract data from the results of the following query expressions: ColumnList

Synopsis

  describe-table
[--cluster-identifier <value>]
[--connected-database <value>]
--database <value>
[--db-user <value>]
[--schema <value>]
[--secret-arn <value>]
[--table <value>]
[--workgroup-name <value>]
[--cli-input-json <value>]
[--starting-token <value>]
[--page-size <value>]
[--max-items <value>]
[--generate-cli-skeleton <value>]
[--debug]
[--endpoint-url <value>]
[--no-verify-ssl]
[--no-paginate]
[--output <value>]
[--query <value>]
[--profile <value>]
[--region <value>]
[--version <value>]
[--color <value>]
[--no-sign-request]
[--ca-bundle <value>]
[--cli-read-timeout <value>]
[--cli-connect-timeout <value>]

Options

--cluster-identifier (string)

The cluster identifier. This parameter is required when connecting to a cluster and authenticating using either Secrets Manager or temporary credentials.

--connected-database (string)

A database name. The connected database is specified when you connect with your authentication credentials.

--database (string)

The name of the database that contains the tables to be described. If ConnectedDatabase is not specified, this is also the database to connect to with your authentication credentials.

--db-user (string)

The database user name. This parameter is required when connecting to a cluster as a database user and authenticating using temporary credentials.

--schema (string)

The schema that contains the table. If no schema is specified, then matching tables for all schemas are returned.

--secret-arn (string)

The name or ARN of the secret that enables access to the database. This parameter is required when authenticating using Secrets Manager.

--table (string)

The table name. If no table is specified, then all tables for all matching schemas are returned. If no table and no schema is specified, then all tables for all schemas in the database are returned

--workgroup-name (string)

The serverless workgroup name or Amazon Resource Name (ARN). This parameter is required when connecting to a serverless workgroup and authenticating using either Secrets Manager or temporary credentials.

--cli-input-json (string) Performs service operation based on the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, the CLI 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.

--starting-token (string)

A token to specify where to start paginating. This is the NextToken from a previously truncated response.

For usage examples, see Pagination in the AWS Command Line Interface User Guide .

--page-size (integer)

The size of each page to get in the AWS service call. This does not affect the number of items returned in the command's output. Setting a smaller page size results in more calls to the AWS service, retrieving fewer items in each call. This can help prevent the AWS service calls from timing out.

For usage examples, see Pagination in the AWS Command Line Interface User Guide .

--max-items (integer)

The total number of items to return in the command's output. If the total number of items available is more than the value specified, a NextToken is provided in the command's output. To resume pagination, provide the NextToken value in the starting-token argument of a subsequent command. Do not use the NextToken response element directly outside of the AWS CLI.

For usage examples, see Pagination in the AWS Command Line Interface User Guide .

--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. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

Global Options

--debug (boolean)

Turn on debug logging.

--endpoint-url (string)

Override command's default URL with the given URL.

--no-verify-ssl (boolean)

By default, the AWS CLI uses SSL when communicating with AWS services. For each SSL connection, the AWS CLI will verify SSL certificates. This option overrides the default behavior of verifying SSL certificates.

--no-paginate (boolean)

Disable automatic pagination. If automatic pagination is disabled, the AWS CLI will only make one call, for the first page of results.

--output (string)

The formatting style for command output.

  • json
  • text
  • table

--query (string)

A JMESPath query to use in filtering the response data.

--profile (string)

Use a specific profile from your credential file.

--region (string)

The region to use. Overrides config/env settings.

--version (string)

Display the version of this tool.

--color (string)

Turn on/off color output.

  • on
  • off
  • auto

--no-sign-request (boolean)

Do not sign requests. Credentials will not be loaded if this argument is provided.

--ca-bundle (string)

The CA certificate bundle to use when verifying SSL certificates. Overrides config/env settings.

--cli-read-timeout (int)

The maximum socket read time in seconds. If the value is set to 0, the socket read will be blocking and not timeout. The default value is 60 seconds.

--cli-connect-timeout (int)

The maximum socket connect time in seconds. If the value is set to 0, the socket connect will be blocking and not timeout. The default value is 60 seconds.

Output

ColumnList -> (list)

A list of columns in the table.

(structure)

The properties (metadata) of a column.

columnDefault -> (string)

The default value of the column.

isCaseSensitive -> (boolean)

A value that indicates whether the column is case-sensitive.

isCurrency -> (boolean)

A value that indicates whether the column contains currency values.

isSigned -> (boolean)

A value that indicates whether an integer column is signed.

label -> (string)

The label for the column.

length -> (integer)

The length of the column.

name -> (string)

The name of the column.

nullable -> (integer)

A value that indicates whether the column is nullable.

precision -> (integer)

The precision value of a decimal number column.

scale -> (integer)

The scale value of a decimal number column.

schemaName -> (string)

The name of the schema that contains the table that includes the column.

tableName -> (string)

The name of the table that includes the column.

typeName -> (string)

The database-specific data type of the column.

NextToken -> (string)

A value that indicates the starting point for the next set of response records in a subsequent request. If a value is returned in a response, you can retrieve the next set of records by providing this returned NextToken value in the next NextToken parameter and retrying the command. If the NextToken field is empty, all response records have been retrieved for the request.

TableName -> (string)

The table name.