Amazon Redshift
API Reference (API Version 2012-12-01)


Returns a detailed list of parameters contained within the specified Amazon Redshift parameter group. For each parameter the response includes information such as parameter name, description, data type, value, whether the parameter value is modifiable, and so on.

You can specify source filter to retrieve parameters of only specific type. For example, to retrieve parameters that were modified by a user action such as from ModifyClusterParameterGroup, you can specify source equal to user.

For more information about parameters and parameter groups, go to Amazon Redshift Parameter Groups in the Amazon Redshift Cluster Management Guide.

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.


The name of a cluster parameter group for which to return details.

Type: String

Required: Yes


An optional parameter that specifies the starting point to return a set of response records. When the results of a DescribeClusterParameters request exceed the value specified in MaxRecords, AWS returns a value in the Marker field of the response. You can retrieve the next set of response records by providing the returned marker value in the Marker parameter and retrying the request.

Type: String

Required: No


The maximum number of response records to return in each call. If the number of remaining response records exceeds the specified MaxRecords value, a value is returned in a marker field of the response. You can retrieve the next set of records by retrying the command with the returned marker value.

Default: 100

Constraints: minimum 20, maximum 100.

Type: Integer

Required: No


The parameter types to return. Specify user to show parameters that are different form the default. Similarly, specify engine-default to show parameters that are the same as the default parameter group.

Default: All parameter types returned.

Valid Values: user | engine-default

Type: String

Required: No

Response Elements

The following elements are returned by the service.


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 marker value in the Marker parameter and retrying the command. If the Marker field is empty, all response records have been retrieved for the request.

Type: String


A list of Parameter instances. Each instance lists the parameters of one cluster parameter group.

Type: Array of Parameter objects


For information about the errors that are common to all actions, see Common Errors.


The parameter group name does not refer to an existing parameter group.

HTTP Status Code: 404


Sample Request ?Action=DescribeClusterParameters &ParameterGroupName=parametergroup1 &Version=2012-12-01 &x-amz-algorithm=AWS4-HMAC-SHA256 &x-amz-credential=AKIAIOSFODNN7EXAMPLE/20121208/us-east-1/redshift/aws4_request &x-amz-date=20121208T010408Z &x-amz-signedheaders=content-type;host;x-amz-date

Sample Response

<DescribeClusterParametersResponse xmlns=""> <DescribeClusterParametersResult> <Parameters> <Parameter> <ParameterValue>ISO, MDY</ParameterValue> <DataType>string</DataType> <Source>engine-default</Source> <IsModifiable>true</IsModifiable> <Description>Sets the display format for date and time values.</Description> <ParameterName>datestyle</ParameterName> </Parameter> <Parameter> <ParameterValue>0</ParameterValue> <DataType>integer</DataType> <Source>engine-default</Source> <IsModifiable>true</IsModifiable> <Description>Sets the number of digits displayed for floating-point values</Description> <AllowedValues>-15-2</AllowedValues> <ParameterName>extra_float_digits</ParameterName> </Parameter> <Parameter> <ParameterValue>default</ParameterValue> <DataType>string</DataType> <Source>engine-default</Source> <IsModifiable>true</IsModifiable> <Description>This parameter applies a user-defined label to a group of queries that are run during the same session..</Description> <ParameterName>query_group</ParameterName> </Parameter> <Parameter> <ParameterValue>false</ParameterValue> <DataType>boolean</DataType> <Source>engine-default</Source> <IsModifiable>true</IsModifiable> <Description>require ssl for all databaseconnections</Description> <AllowedValues>true,false</AllowedValues> <ParameterName>require_ssl</ParameterName> </Parameter> <Parameter> <ParameterValue>$user, public</ParameterValue> <DataType>string</DataType> <Source>engine-default</Source> <IsModifiable>true</IsModifiable> <Description>Sets the schema search order for names that are not schema-qualified.</Description> <ParameterName>search_path</ParameterName> </Parameter> <Parameter> <ParameterValue>0</ParameterValue> <DataType>integer</DataType> <Source>engine-default</Source> <IsModifiable>true</IsModifiable> <Description>Aborts any statement that takes over the specified number of milliseconds.</Description> <ParameterName>statement_timeout</ParameterName> </Parameter> <Parameter> <ParameterValue>[{&quot;query_concurrency&quot;:5}]</ParameterValue> <DataType>string</DataType> <Source>engine-default</Source> <IsModifiable>true</IsModifiable> <Description>wlm json configuration</Description> <ParameterName>wlm_json_configuration</ParameterName> </Parameter> </Parameters> </DescribeClusterParametersResult> <ResponseMetadata> <RequestId>2ba35df4-40d3-11e2-82cf-0b45b05c0221</RequestId> </ResponseMetadata> </DescribeClusterParametersResponse>

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: