This page provides a guide to Establishing a Connection to Amazon Redshift in CData Cloud, as well as information on the available resources, and a reference to the available connection properties.

Connecting to Amazon Redshift

Establishing a Connection shows how to authenticate to Amazon Redshift and configure any necessary connection properties to create a database in CData Cloud

Accessing Data from CData Cloud Services

Accessing data from Amazon Redshift through the available standard services and CData Cloud administration is documented in further details in the CData Cloud Documentation.

Connect to Amazon Redshift by selecting the corresponding icon in the Database tab. Required properties are listed under Settings. The Advanced tab lists connection properties that are not typically required.

Connecting to Amazon Redshift

The following connection properties are usually required to connect to Amazon Redshift.

• Server: The host name or IP of the server hosting the Amazon Redshift database.
• Database: The database that you created for your Amazon Redshift cluster.
• Port (optional): The port of the server hosting the Amazon Redshift database. 5439 by default.

Follow these steps to obtain these values in the AWS Management Console:

1. Open the Amazon Redshift console (http://console.aws.amazon.com/redshift).
2. On the Clusters page, click the name of the cluster.
3. On the Configuration tab, obtain the properties from the "Cluster Database Properties" section. The connection property values are the same as the values set in the ODBC URL.

The Cloud provides secure communication with Amazon Redshift server using SSL encryption. You can optionally turn off SSL encryption by setting UseSSL to false.

You can also leverage SSL authentication to connect to Amazon Redshift data. To do so, specify the following connection properties:

• SSLClientCert: Set this to the name of the certificate store for the client certificate. This is used in the case of 2-way SSL, where truststore and keystore are kept on both the client and server machines.
• SSLClientCertPassword: If a client certificate store is password-protected, set this value to the store's password.
• SSLClientCertSubject: The subject of the TLS/SSL client certificate. This is used to locate the certificate in the store.
• SSLClientCertType: The certificate type of the client store.
• SSLServerCert: The certificate to be accepted from the server.

The following is the example connection string to connect Amazon Redshift using a standard user and password pair and inactive SSL encryption:

User=username;Password=password;Server=example.us-west-2.redshift.amazonaws.com;Database=your_database;UseSSL=false;"

Authenticating to Amazon Redshift

Azure Active Directory

Prerequisites

• Only non-B2C Azure tenants can complete the Azure AD authentication scheme.
• You must have an active Azure AD account. If you do not have an active account, create one before beginning this process.

Authentication

To authenticate to Azure AD, you must complete these tasks:

1. Create and Register an OAuth Application
2. Create and Configure a Redshift Client Application
3. Define a New Identity Provider
4. Specify Connection Properties

The following sections describe these tasks in detail.

Create and Register an OAuth Application

Follow these steps to create an OAuth app for logging into your Amazon Redshift database via Azure:

1. On the Azure Active Directory Overview page, in the left navigation bar, select App registrations.
2. Click New registrations at the top of the App registrations page.
3. On the Register an app page, fill in your details and click Register at the bottom of the page. Save your CallbackURL property value.
4. After the creation of the application, you are brought to its Overview page. From there, in the left navigation bar:
   1. Click Certificates & secrets.
   2. Click New client secret.
   3. In the Add a client secret window, supply your details and click Add at the bottom of the window.
   4. Save your OAuthClientSecret (the Value field of the OAuth secret that is displayed).

5. From the newly registered application, click Expose an API in the left navigation bar.
6. Next to the App ID URI, click Set.
7. The Set the App ID URI dialog appears with the information filled in from registering. Click Save.
8. Click Add a scope.
9. Fill in your details and click Add scope at the bottom of the form.

Create and Configure a Redshift Client Application

Follow these steps to create another application, which serves as the client application for your Amazon Redshift database:

1. Navigate to the Azure Active Directory management page and click App registrations.
2. Click New registrations at the top of the page.
3. On the Register an application page, fill in your details and click Register at the bottom of the page.
4. Following the creation of the app, you are sent to its Overview page. From there, in the left navigation bar:
   1. Click Certificates & secrets.
   2. Click New client secret.
   3. In the Add a client secret window, supply your details and click Add at the bottom of the window.
   4. Save your OAuthClientSecret (the Value field of the OAuth secret that is displayed).

5. In the left navigation bar of the client app's management page:
   1. Click API permissions.
   2. Click Add a permission.
   3. Choose Microsoft Graph API.
   4. Click Application permissions.
   5. Select Directory > "Directory.Read.All".
   6. Click Add at the bottom.
   7. Click Grant admin consent.
   8. Click Yes.

6. In the Azure Active Directory left navigation bar:
   1. Click Groups.
   2. On the Groups page, click New group and fill in the details.
   3. Click No owners selected.
   4. The Add owners window appears. Select the user.
   5. Click Create.

Define a New Identity Provider

Follow these steps to define a new Identify Provider:

1. In the Azure Active Directory Overviewpage:
   1. Select App registrations from the left navigation pane.
   2. Select the All applications tab and choose your first OAuth application.

2. In the left navigation bar on the OAuth page, click Manifest. Search in the editor for the accessTokenAcceptedVersion. If the value is null, it is a v1.0 token. If the value is set to 2, this is a v2.0 token.
3. From the Amazon Redshift instance's query box, submit the identity provider query, following the example below:
   

       CREATE IDENTITY PROVIDER oauth_standard TYPE azure
       NAMESPACE 'mynamespace'
       PARAMETERS '{
       "issuer":"https://sts.windows.net/your_tenant_here/",
       "client_id":"YourClientId",
       "client_secret":"YourClientSecret",
       "audience":["your_application_id_uri_here"]
       }' 

   Terminology Guide:

   • Your issuer ID: The issuer ID to trust when a token is received. The unique identifier for the tenant_id is appended to the issuer. If using a v1.0 token, use https://sts.windows.net/<your_tenant_id_here>/. If using a v2.0 token, use https://login.microsoftonline.com/<your_tenant_id_here>/v2.0.
   • Your client_id: The unique, public identifier of the application registered with the identity provider. This is referred to as the application ID. It is the clien ID generated for the second application (the Amazon Redshift client application).
   • Your client_secret: A secret identifier, or password, known only to the identity provider and the registered application. This is the secret generated for the second application (the Amazon Redshift application).
   • audience: The Application ID (URI) assigned to the first application (the OAuth application).

   You can use any name you like for the NAMESPACE.

4. In Amazon Redshift, place the CREATE IDENTITY PROVIDER query (like above example) into the query text box.
5. Click Run at the bottom of the query box.
6. In the query text box, create a role on the Redshift database in this format:
   

   create role "mynamespace:myazuregroup";

   Replace with your identity provider's namespace provided in the CREATE IDENTITY PROVIDER query and the name of Azure group that you created earlier. Click Run at the bottom of the query box.
7. In the query text box, grant table access to this new role as follows:
   

   grant select on all tables in schema public to role "mynamespace:myazuregroup";

8. Replace the above example with your namespace and Azure group name.
9. Click Run at the bottom of the query box.

Set Connection Properties

Specify the following connection properties:

• AuthScheme: Set this to AzureAD.
• Server: Set this to the name of your Amazon Redshift server endpoint.
• Database: Set this to the name of your Amazon Redshift database that you would like to connect to.
• User: Set this to the name of the authenticating Amazon Redshift user.
• AzureTenant: Set this to the ID of the Azure Tenant that your OAuth and client apps were created under. Find this in the Overview page of one of the apps under Directory (tenant) ID.
• SSOLoginURL: Set this to the value of the Application ID URI, visible on the Overview page of your OAuth app.
• Scope: For v1.0 OAuth tokens, set this to the Scopes field in the Expose an API page of your OAuth app. For v2.0 OAuth tokens, this will be the same as the OAuth app's Client ID.
• OAuthClientID: Set this to the first OAuth application client ID in the Overview page of the Amazon Redshift client application that you created.
• OAuthClientSecret: For your first OAuth application, set this to the Value of the OAuth client secret from the client application's Certificates & secrets page.
• CallbackURL: Set this to the callback URL of the OAuth app.

Troubleshooting Note If you encounter an "Azure JWT token does not have 'upn' field" error, follow these steps:

1. On the Azure Active Directory management page, navigate to App Registrations and select your OAuth application.
2. Click Token configuration in the left navigation bar.
3. Click Add optional claim.
4. In the Add optional claim screen, under Token type, click Access.
5. Under the Claim column, select upn.
6. Click Add at the bottom.
7. Select Turn on the Microsoft Graph profile permission (required for claims to appear in the token).
8. Click Add.
9. Repeat this process for the client app.
10. Attempt the connection again.

Azure Active Directory PKCE

To authenticate via Azure AD PKCE, you must complete the following tasks:

1. Create and Register an OAuth Application
2. Create and Configure a Redshift Client Application
3. Define a New Identity Provider
4. Specify Connection Properties

The following sections describe these tasks in detail.

Create and Register an OAuth Application

Follow these steps to create an OAuth application for logging into your Amazon Redshift database via Azure:

1. On the Azure Active Directory Overview page, in the left navigation bar, Click App registrations.
2. Click New registrations at the top of the App registrations page.
3. On the Register an application page, fill in your details:
   1. For Name, enter a name (for example, "oauth_application").
   2. For Redirect URI, choose Public client/native (mobile and desktop) and enter a valid URL (for example, http://localhost:33333/).

4. Click Register at the bottom of the page. Save the CallbackURL property value.
5. From the newly registered application, click Expose an API in the left navigation bar.
6. Next to the Application ID URI, click Set.
7. The Set the App ID URI dialog appears with the information filled in your registration. Click Save.
8. Click Add a scope.
9. Fill in your details and click Add scope at the bottom of the form.
10. Save the generated Application ID URI and the API scope; for example, api://6256f0b1-2284-43e4-8501-6e53dec4444f and api://6256f0b1-2284-43e4-8501-6e53dec4444f/jdbc_login.

Create and Configure a Redshift Client Application

Follow these steps to create another application, which serves as the client application for your Amazon Redshift database:

1. On the Azure Active Directory Overview page, select App registrations from the left navigation bar.
2. At the top of the App registrations page, click New registrations.
3. On the Register an application page, fill in your details and click Register at the bottom of the page.
4. After the creation of the application, you are brought to its Overview page. From there, in the left navigation bar:
   1. Click Certificates & secrets.
   2. Click New client secret.
   3. In the Add a client secret window, add your details and click Add at the bottom of the window.
   4. Save your OAuthClientSecret (the Value field of the OAuth secret that is displayed).

5. In the left navigation bar of the client app's management page:
   1. Click API permissions.
   2. Click Add a permission.
   3. Choose Microsoft Graph API.
   4. Click Application permissions.
   5. Select Directory > "Directory.Read.All".
   6. Click Add at the bottom.
   7. Click Grant admin consent
   8. Click Yes.

6. In the Azure Active Directory left navigation bar:
   1. Click Groups.
   2. On the Groups page, click New group and fill in the details.
   3. Click No owners selected.
   4. The Add owners window appears. Select the user.
   5. Click Create.

Define a New Identity Provider

Follow these steps to define a new Identity Provider:

1. In the Azure Active Directory left navigation bar, click App registrations.
2. Select the All applications tab and choose your first OAuth application.
3. On the OAuth screen, in the left navigation bar, click Manifest. Look in the editor for the accessTokenAcceptedVersion. If the value is null or 1, it is a v1.0 token. If the value is 2, this is a v2.0 token.
4. From the Amazon Redshift instance's query box, submit the identity provider query, following the example below:
   

       CREATE IDENTITY PROVIDER oauth_standard TYPE azure
       NAMESPACE 'mynamespace'
       PARAMETERS '{
       "issuer":"https://sts.windows.net/your_tenant_here/",
       "client_id":"YourRedshiftApplicationClientId",
       "client_secret":"YourRedshiftApplicationClientSecret"
       ,"audience":["your_oauth_application_id_uri_here"]
       }'

   For a v2.0 token issuer the value should be:
   

       "issuer":"https://login.microsoftonline.com/your_tenant_here/v2.0",

5. Terminology Guide:
   1. Your issuer ID: The issuer ID to trust when a token is received. The unique identifier for the tenant_id is appended to the issuer. If you are using a v1.0 token, specify https://sts.windows.net<your_tenant_id_here>. If you are using a v2.0 token, specify https://login.microsoftonline.com<your_tenant_id_here>/v2.0..
   2. Your client_id: The unique, public identifier of the application registered with the identity provider. This is referred to as the application ID. It is the client ID generated for the second application (the Amazon Redshift application).
   3. Your client_secret: A secret identifier, or password, known only to the identity provider and the registered application. This is the secret generated for the second application (the Amazon Redshift application).
   4. audience: The Application ID (URI) assigned to the first application (the OAuth application).
   5. You can use any name you like for the namespace.

6. In Amazon Redshift, place the CREATE IDENTITY PROVIDER query (like the above example) into the query text box.
7. Click Run at the bottom of the query box.
8. In the query text box, create a role on the Redshift database in this format:
   

   create role "mynamespace:myazuregroup";

9. Replace with your identity provider's namespace provided in the CREATE IDENTITY PROVIDER query and the name of the Azure group you created earlier.
10. Click Run at the bottom of the query box.
11. In the query text box, grant table access to this new role as follows:
    

    grant select on all tables in schema public to role "mynamespace:myazuregroup";

12. Replace the above example with your namespace and Azure group name.
13. Click Run at the bottom of the query box.

Set Connection Properties

After finishing the above configuration, specify the following properties in the driver to connect to amazon Redshift:

• AuthScheme: Set this to AzureADPKCE.
• Server: Set this to the name of your Amazon Redshift server endpoint.
• Database: Set this to the name of your Amazon Redshift database that you want to connect to.
• Scope: For v1.0 OAuth tokens, set this to the Scopes field in the Expose an API page of your OAuth application (for example,api://d3cb3521-6c20-4e41-b16d-e48c8444ee11/jdbc_login). For v2.0 OAuth tokens, this is the same as the OAuth app's Client ID (for example, d3cb3521-6c20-4e41-b16d-e48c8444ee11).
• OAuthClientID: Set this to the Application (client) ID in the Overview page of the OAuth application you created.6.
• CallbackURL: Set this to the callback URL of the OAuth app.

Troubleshooting Note

If you encounter an "Azure JWT token does not have 'upn' field" error, follow these steps:

1. On the Azure Active Directory management page, navigate to App Registrations and select your OAuth application.
2. Select Token configuration > Add Optional claim in the left navigation bar.
3. In the Add optional claim screen, under "Token type", click Access.
4. Under the Claim column, select upn.
5. Click Add at the bottom.
6. Select Turn on the Microsoft Graph profile permission, which is required for claims to appear in the token.
7. Click Add.
8. Repeat this process for the client app.
9. Attempt the connection again.

Standard Authentication

Set the AuthScheme to Basic to connect to Amazon Redshift with login credentials. In addition, set the following connection properties:

• User: The user which will be used to authenticate with the Amazon Redshift server.
• Password: The password which will be used to authenticate with the Amazon Redshift server.

The following is an example connection string:

AuthScheme=Basic;User=user;Password=password;Server=example.us-west-2.redshift.amazonaws.com;Database=your_database;

IAM credentials

Set the AuthScheme to IAMCredentials. The following is an example connection string:

AuthScheme=IAMCredentials;Server=example.us-west-2.redshift.amazonaws.com;Database=your_database;User=your_user;AWSAccessKey=your_access_key;AWSSecretKey=your_secretkey;

If you are connecting IAM role with temporary credentials you are also required to apply AWSSessionToken.

You can optionally apply:

• AutoCreate: Create a database user with the name specified for User if one does not exist while connecting.
• DbGroups: Database groups the database user joins for the current session.

ADFS

To connect to ADFS, set the AuthScheme to ADFS, and set these properties:

• User: The ADFS user.
• Password: The ADFS user's password.
• SSOLoginURL: The SSO provider's login url.

Example connection string:

AuthScheme=ADFS;User=username;Password=password;SSOLoginURL='https://sts.company.com';

ADFS Integrated

The ADFS Integrated flow indicates you are connecting with the currently logged in Windows user credentials. To use the ADFS Integrated flow, do not specify the User and Password, but otherwise follow the same steps in the ADFS guide above.

To connect to PingFederate, set AuthScheme to PingFederate, and set these properties:

• User: The PingFederate user.
• Password: The PingFederate user's password.
• SSOLoginURL: The SSO provider's login url.
• AWSRoleARN (optional): If you have multiple role ARNs, specify the one you want to use for authorization.
• AWSPrincipalARN (optional): If you have multiple principal ARNs, specify the one you want to use for authorization.
• SSOProperties (optional): Authscheme=Basic if you want to include your username and password as an authorization header in requests to Amazon S3.

To enable mutual SSL authentication for SSOLoginURL, the WS-Trust STS endpoint, configure these SSOProperties:

• SSLClientCert
• SSLClientCertType
• SSLClientCertSubject
• SSLClientCertPassword

Example connection string:

Server=redshift-cluster-1.xxxxxxxxxxxx.us-east-1.redshift.amazonaws.com;Database=dev;Port=5439;UseSSL=true;SSLServerCert=*;AuthScheme=PingFederate;AutoCreate=TRUE;SSOLoginURL=https://mycustomserver.com:9033/idp/sts.wst;SSOExchangeUrl=https://us-east-1.signin.aws.amazon.com/platform/saml/acs/764ef411-xxxxxx;User=admin;Password=PassValue;AWSRegion=NORTHERNVIRGINIA;

Customizing the SSL Configuration

By default, the Cloud attempts to negotiate SSL/TLS by checking the server's certificate against the system's trusted certificate store.

To specify another certificate, see the SSLServerCert property for the available formats to do so.

Client SSL Certificates

The Amazon Redshift Cloud also supports setting client certificates. Set the following to connect using a client certificate.

• SSLClientCert: The name of the certificate store for the client certificate.
• SSLClientCertType: The type of key store containing the TLS/SSL client certificate.
• SSLClientCertPassword: The password for the TLS/SSL client certificate.
• SSLClientCertSubject: The subject of the TLS/SSL client certificate.

Connecting Through a Firewall or Proxy

Set the following properties:

• To use a proxy-based firewall, set FirewallType, FirewallServer, and FirewallPort.
• To tunnel the connection, set FirewallType to TUNNEL.
• To authenticate, specify FirewallUser and FirewallPassword.
• To authenticate to a SOCKS proxy, additionally set FirewallType to SOCKS5.

Data Type Mappings

The Cloud maps types from the data source to the corresponding data type available in the schema. The table below documents these mappings.

Amazon Redshift	CData Schema
abstime	string
aclitem	string
bigint	long
bigserial	long
bit varying	string
bit	string
boolean	bool
box	string
bytea	binary
char	string
character varying	string
character	string
cid	string
cidr	string
circle	string
date	date
daterange	string
double precision	float
gtsvector	string
inet	string
int2vector	string
int4range	string
int8range	string
integer	int
json	string
jsonb	binary
line	string
lseg	string
macaddr8	string
macaddr	string
money	decimal
name	string
numeric	decimal
numrange	string
oid	string
oidvector	string
path	string
pg_dependencies	string
pg_lsn	string
pg_ndistinct	string
pg_node_tree	string
point	string
polygon	string
real	float
refcursor	string
regclass	string
regconfig	string
regdictionary	string
regnamespace	string
regoper	string
regoperator	string
regproc	string
regprocedure	string
regrole	string
regtype	string
reltime	string
serial	int
smallint	int
smallserial	int
smgr	string
text	string
tid	string
time with time zone	string
time without time zone	time
timestamp with time zone	datetime
timestamp without time zone	datetime
tinterval	string
tsquery	string
tsrange	string
tstzrange	string
tsvector	string
txid_snapshot	string
uuid	string
xid	string
xml	string

The connection string properties are the various options that can be used to establish a connection. This section provides a complete list of the options you can configure in the connection string for this provider. Click the links for further details.

For more information on establishing a connection, see Establishing a Connection.

Authentication

---

Property	Description
AuthScheme	The type of authentication to use when connecting to Amazon Redshift.
Server	The host name or IP address of the Amazon Redshift cluster.
Port	The port number of the Amazon Redshift server.
Database	The name of the Amazon Redshift database.
User	The Amazon Redshift user account used to authenticate.
Password	The password used to authenticate the user.
UseSSL	This field sets whether SSL is enabled.
Visibility	Visibility restrictions used to filter exposed metadata for tables with privileges granted to them for current user. For example 'SELECT,INSERT' filter is restricting metatdata visibility only for those tables which may be accessed by current user for SELECT and INSERT operations. Supported privilege values are SELECT, INSERT, UPDATE, DELETE, REFERENCES.

AWS Authentication

---

Property	Description
AWSAccessKey	Your AWS account access key or the access key for an authorized IAM user.
AWSSecretKey	Your AWS account secret key or the secret key for an authorized IAM user.
AutoCreate	Specify true to create a database user with the name specified for User if one does not exist while connecting with IAM credentials. See AuthScheme .
DbGroups	A comma-delimited list of the names of one or more existing database groups the database user joins for the current session when connecting with IAM credentials. See AuthScheme .
AWSRoleARN	The Amazon Resource Name of the role to use when authenticating.
AWSPrincipalARN	The ARN of the SAML Identity provider in your AWS account.
AWSRegion	The hosting region for your Amazon Web Services.
AWSSessionToken	Your AWS session token.

Azure Authentication

---

Property	Description
AzureTenant	The Microsoft Online tenant being used to access data. If not specified, your default tenant is used.

SSO

---

Property	Description
SSOLoginURL	The identity provider's login URL.
SSOProperties	Additional properties required to connect to the identity provider in a semicolon-separated list.
SSOExchangeUrl	The URL used for consuming the SAML response and exchanging it for service specific credentials.

OAuth

---

Property	Description
OAuthClientId	The client Id assigned when you register your application with an OAuth authorization server.
OAuthClientSecret	The client secret assigned when you register your application with an OAuth authorization server.
Scope	Specify scope to obtain the initial access and refresh token.

SSL

---

Property	Description
SSLServerCert	The certificate to be accepted from the server when connecting using TLS/SSL.

SSH

---

Property	Description
SSHAuthMode	The authentication method used when establishing an SSH Tunnel to the service.
SSHClientCert	A certificate to be used for authenticating the SSHUser.
SSHClientCertPassword	The password of the SSHClientCert key if it has one.
SSHClientCertSubject	The subject of the SSH client certificate.
SSHClientCertType	The type of SSHClientCert private key.
SSHServer	The SSH server.
SSHPort	The SSH port.
SSHUser	The SSH user.
SSHPassword	The SSH password.
SSHServerFingerprint	The SSH server fingerprint.
UseSSH	Whether to tunnel the Amazon Redshift connection over SSH. Use SSH.

Logging

---

Property	Description
Verbosity	The verbosity level that determines the amount of detail included in the log file.

Schema

---

Property	Description
BrowsableSchemas	This property restricts the schemas reported to a subset of the available schemas. For example, BrowsableSchemas=SchemaA,SchemaB,SchemaC.
IgnoredSchemas	Visibility restriction filter which is used to hide the list of schemas by metadata quering. For example, 'information_schema, pg_catalog'. Schema names are case sensitive.

Miscellaneous

---

Property	Description
AllowPreparedStatement	Prepare a query statement before its execution.
COPYConversionParameters	Specifies the coma separated list of parameter to use in the COPY command when InsertMode is S3Staging or S3StagingWithIAM. Supported parameters are: BLANKSASNULL DELIMITER EMPTYASNULL EXPLICIT_IDS NULL AS TRIMBLANKS TRUNCATECOLUMNS.
FetchResultSetMetadata	This field sets whether the provider retrieves metadata pertaining to the schema and table name for resultset columns returned by the server.
InsertMode	Specifies what method to use when inserting bulk data. By default DML mode is used.
MaxRows	Limits the number of rows returned when no aggregation or GROUP BY is used in the query. This takes precedence over LIMIT clauses.
RedshiftToS3RoleARN	The Amazon Resource Name of the role to use when authenticating S3 with IAM role by the COPY command for the bulk inserts.
S3Bucket	Specifies the name of AWS S3 bucket to upload bulk data for staging.
S3BucketFolder	Specifies the name of the folder in AWS S3 bucket to upload bulk data for staging. By default bulk data are staged in the root folder.
StripOutNulls	When set the null characters are stripped out from character values in bulk operations.
Timeout	The value in seconds until the timeout error is thrown, canceling the operation.
TimeZone	Set time zone for the current session.
UseUIDForStaging	Use this property in combination with InsertMode assigned with S3Staging or S3StagingWithIAM. By default the the driver creates staging files with names that prepend the targeted table's name, so the files are overwritten between sessions. When the property is set to True , the provider additionally attaches temporary unique identifiers to these names. It may be required if you use parallel jobs to insert rows into the same table. Thus, the staging files are not overwritten by the jobs. A caveat is that using this property adds to the number of staging files put onto S3 bucket, since the file names are not controlled by the driver between different sessions. In this case you may want to define an AWS S3 policy on the bucket to remove staging files that were stored in a bucket automatically.

This section provides a complete list of the Authentication properties you can configure in the connection string for this provider.

---

Property	Description
AuthScheme	The type of authentication to use when connecting to Amazon Redshift.
Server	The host name or IP address of the Amazon Redshift cluster.
Port	The port number of the Amazon Redshift server.
Database	The name of the Amazon Redshift database.
User	The Amazon Redshift user account used to authenticate.
Password	The password used to authenticate the user.
UseSSL	This field sets whether SSL is enabled.
Visibility	Visibility restrictions used to filter exposed metadata for tables with privileges granted to them for current user. For example 'SELECT,INSERT' filter is restricting metatdata visibility only for those tables which may be accessed by current user for SELECT and INSERT operations. Supported privilege values are SELECT, INSERT, UPDATE, DELETE, REFERENCES.

The type of authentication to use when connecting to Amazon Redshift.

Possible Values

AzureAD, Basic, ADFS, IAMCredentials, PingFederate

Data Type

string

Default Value

"Auto"

Remarks

• Auto: Lets the driver decide automatically based on the other connection properties you have set.
• Basic: Set this to use BASIC user / password authentication.
• ADFS: Set this to perform Active Directory Federated Services authentication.
• PingFederate: Set this to use the PingFederate SSO identity provider in order to perform authentication.
• IAMCredentials: Set this to perform authentication with Redshift's GetClusterCredentials API.
• AzureAD: Set this to use Azure Active Directory OAuth authentication.
• AzureADPKCE: Set this to use native IdP federation with Microsoft Azure AD.

The host name or IP address of the Amazon Redshift cluster.

Data Type

string

Default Value

""

Remarks

The host name or IP of the Amazon Redshift cluster Database. You can obtain this value from the AWS Management Console:

1. Open the Amazon Redshift console (http://console.aws.amazon.com/redshift).
2. On the Clusters page, click the name of the cluster.
3. On the Configuration tab for the cluster, copy the cluster URL from the connection strings displayed.

The port number of the Amazon Redshift server.

Data Type

string

Default Value

"5439"

Remarks

The port number of the Server hosting the Amazon Redshift Database. If not specified the default port number 5439 is used.

The name of the Amazon Redshift database.

Data Type

string

Default Value

""

Remarks

The database to connect to when connecting to the Amazon Redshift Server. If the database is not provided, the user's default database will be used.

The Amazon Redshift user account used to authenticate.

Data Type

string

Default Value

""

Remarks

Together with Password, this field is used to authenticate against the Amazon Redshift server.

The password used to authenticate the user.

Data Type

string

Default Value

""

Remarks

The User and Password are together used to authenticate with the server.

This field sets whether SSL is enabled.

Data Type

bool

Default Value

true

Remarks

This field sets whether the Cloud will attempt to negotiate TLS/SSL connections to the server. By default, the Cloud checks the server's certificate against the system's trusted certificate store. To specify another certificate, set SSLServerCert.

Visibility restrictions used to filter exposed metadata for tables with privileges granted to them for current user. For example 'SELECT,INSERT' filter is restricting metatdata visibility only for those tables which may be accessed by current user for SELECT and INSERT operations. Supported privilege values are SELECT, INSERT, UPDATE, DELETE, REFERENCES.

Data Type

string

Default Value

""

Remarks

By default visibility filtering is not applied. Filtering values are case insensitive.

This section provides a complete list of the AWS Authentication properties you can configure in the connection string for this provider.

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Property	Description
AWSAccessKey	Your AWS account access key or the access key for an authorized IAM user.
AWSSecretKey	Your AWS account secret key or the secret key for an authorized IAM user.
AutoCreate	Specify true to create a database user with the name specified for User if one does not exist while connecting with IAM credentials. See AuthScheme .
DbGroups	A comma-delimited list of the names of one or more existing database groups the database user joins for the current session when connecting with IAM credentials. See AuthScheme .
AWSRoleARN	The Amazon Resource Name of the role to use when authenticating.
AWSPrincipalARN	The ARN of the SAML Identity provider in your AWS account.
AWSRegion	The hosting region for your Amazon Web Services.
AWSSessionToken	Your AWS session token.

Your AWS account access key or the access key for an authorized IAM user.

Data Type

string

Default Value

""

Remarks

To authorize Amazon Redshift requests, provide the credentials for an administrator account or for an IAM user with custom permissions. Set this property along with AWSSecretKey.

Note: Though you can connect as the AWS account administrator, it is recommended to use IAM user credentials to access AWS services.

Obtaining the Access Key

To obtain the credentials for an IAM user, follow the steps below:

1. Sign into the IAM console.
2. In the navigation pane, select Users.
3. To create or manage the access keys for a user, select the user and then select the Security Credentials tab.

To obtain the credentials for your AWS root account, follow the steps below:

1. Sign into the AWS Management console with the credentials for your root account.
2. Select your account name or number and select My Security Credentials in the menu that is displayed.
3. Click Continue to Security Credentials and expand the Access Keys section to manage or create root account access keys.

Your AWS account secret key or the secret key for an authorized IAM user.

Data Type

string

Default Value

""

Remarks

Your AWS account secret key or the secret key for an authorized IAM user. See AWSAccessKey to obtain the secret key and access key.

Specify true to create a database user with the name specified for User if one does not exist while connecting with IAM credentials. See AuthScheme .

Data Type

bool

Default Value

false

Remarks

The default is false.

A comma-delimited list of the names of one or more existing database groups the database user joins for the current session when connecting with IAM credentials. See AuthScheme .

Data Type

string

Default Value

""

Remarks

The group names must match the dbgroup resources ARNs specified in the IAM policy attached to the IAM user or role.

By default, the new user is added only to PUBLIC.

The Amazon Resource Name of the role to use when authenticating.

Data Type

string

Default Value

""

Remarks

When authenticating outside of AWS, it is common to use a Role for authentication instead of your direct AWS account credentials. Entering the AWSRoleARN will cause the CData Cloud to perform a role based authentication instead of using the AWSAccessKey and AWSSecretKey directly. The AWSAccessKey and AWSSecretKey must still be specified to perform this authentication. You cannot use the credentials of an AWS root user when setting RoleARN. The AWSAccessKey and AWSSecretKey must be those of an IAM user.

The ARN of the SAML Identity provider in your AWS account.

Data Type

string

Default Value

""

Remarks

The ARN of the SAML Identity provider in your AWS account.

The hosting region for your Amazon Web Services.

Possible Values

OHIO, NORTHERNVIRGINIA, NORTHERNCALIFORNIA, OREGON, CAPETOWN, HONGKONG, JAKARTA, MUMBAI, OSAKA, SEOUL, SINGAPORE, SYDNEY, TOKYO, CENTRAL, BEIJING, NINGXIA, FRANKFURT, IRELAND, LONDON, MILAN, PARIS, STOCKHOLM, ZURICH, BAHRAIN, UAE, SAOPAULO, GOVCLOUDEAST, GOVCLOUDWEST

Data Type

string

Default Value

"NORTHERNVIRGINIA"

Remarks

The hosting region for your Amazon Web Services. Available values are OHIO, NORTHERNVIRGINIA, NORTHERNCALIFORNIA, OREGON, CAPETOWN, HONGKONG, JAKARTA, MUMBAI, OSAKA, SEOUL, SINGAPORE, SYDNEY, TOKYO, CENTRAL, BEIJING, NINGXIA, FRANKFURT, IRELAND, LONDON, MILAN, PARIS, STOCKHOLM, ZURICH, BAHRAIN, UAE, SAOPAULO, GOVCLOUDEAST, and GOVCLOUDWEST.

Your AWS session token.

Data Type

string

Default Value

""

Remarks

Your AWS session token. This value can be retrieved in different ways. See this link for more info.

This section provides a complete list of the Azure Authentication properties you can configure in the connection string for this provider.

---

Property	Description
AzureTenant	The Microsoft Online tenant being used to access data. If not specified, your default tenant is used.

The Microsoft Online tenant being used to access data. If not specified, your default tenant is used.

Data Type

string

Default Value

""

Remarks

The Microsoft Online tenant being used to access data. For instance, contoso.onmicrosoft.com. Alternatively, specify the tenant Id. This value is the directory Id in the Azure Portal > Azure Active Directory > Properties.

Typically it is not necessary to specify the Tenant. This can be automatically determined by Microsoft when using the OAuthGrantType set to CODE (default). However, it may fail in the case that the user belongs to multiple tenants. For instance, if an Admin of domain A invites a user of domain B to be a guest user. The user will now belong to both tenants. It is a good practice to specify the Tenant, although in general things should normally work without having to specify it.

The AzureTenant is required when setting OAuthGrantType to CLIENT. When using client credentials, there is no user context. The credentials are taken from the context of the app itself. While Microsoft still allows client credentials to be obtained without specifying which Tenant, it has a much lower probability of picking the specific tenant you want to work with. For this reason, we require AzureTenant to be explicitly stated for all client credentials connections to ensure you get credentials that are applicable for the domain you intend to connect to.

This section provides a complete list of the SSO properties you can configure in the connection string for this provider.

---

Property	Description
SSOLoginURL	The identity provider's login URL.
SSOProperties	Additional properties required to connect to the identity provider in a semicolon-separated list.
SSOExchangeUrl	The URL used for consuming the SAML response and exchanging it for service specific credentials.

The identity provider's login URL.

Data Type

string

Default Value

""

Remarks

The identity provider's login URL.

Additional properties required to connect to the identity provider in a semicolon-separated list.

Data Type

string

Default Value

""

Remarks

Additional properties required to connect to the identity provider in a semicolon-separated list. is used in conjunction with the SSOLoginURL.

SSO configuration is discussed further in .

The URL used for consuming the SAML response and exchanging it for service specific credentials.

Data Type

string

Default Value

""

Remarks

The CData Cloud will use the URL specified here to consume a SAML response and exchange it for service specific credentials. The retrieved credentials are the final piece during the SSO connection that are used to communicate with Amazon Redshift.

This section provides a complete list of the OAuth properties you can configure in the connection string for this provider.

---

Property	Description
OAuthClientId	The client Id assigned when you register your application with an OAuth authorization server.
OAuthClientSecret	The client secret assigned when you register your application with an OAuth authorization server.
Scope	Specify scope to obtain the initial access and refresh token.

The client Id assigned when you register your application with an OAuth authorization server.

Data Type

string

Default Value

""

Remarks

As part of registering an OAuth application, you will receive the OAuthClientId value, sometimes also called a consumer key, and a client secret, the OAuthClientSecret.

The client secret assigned when you register your application with an OAuth authorization server.

Data Type

string

Default Value

""

Remarks

As part of registering an OAuth application, you will receive the OAuthClientId, also called a consumer key. You will also receive a client secret, also called a consumer secret. Set the client secret in the OAuthClientSecret property.

Specify scope to obtain the initial access and refresh token.

Data Type

string

Default Value

""

Remarks

Specify scope to obtain the initial access and refresh token.

This section provides a complete list of the SSL properties you can configure in the connection string for this provider.

---

Property	Description
SSLServerCert	The certificate to be accepted from the server when connecting using TLS/SSL.

The certificate to be accepted from the server when connecting using TLS/SSL.

Data Type

string

Default Value

""

Remarks

If using a TLS/SSL connection, this property can be used to specify the TLS/SSL certificate to be accepted from the server. Any other certificate that is not trusted by the machine is rejected.

This property can take the following forms:

Description	Example
A full PEM Certificate (example shortened for brevity)	-----BEGIN CERTIFICATE----- MIIChTCCAe4CAQAwDQYJKoZIhv......Qw== -----END CERTIFICATE-----
A path to a local file containing the certificate	C:\cert.cer
The public key (example shortened for brevity)	-----BEGIN RSA PUBLIC KEY----- MIGfMA0GCSq......AQAB -----END RSA PUBLIC KEY-----
The MD5 Thumbprint (hex values can also be either space or colon separated)	ecadbdda5a1529c58a1e9e09828d70e4
The SHA1 Thumbprint (hex values can also be either space or colon separated)	34a929226ae0819f2ec14b4a3d904f801cbb150d

If not specified, any certificate trusted by the machine is accepted.

Use '*' to signify to accept all certificates. Note that this is not recommended due to security concerns.

This section provides a complete list of the SSH properties you can configure in the connection string for this provider.

---

Property	Description
SSHAuthMode	The authentication method used when establishing an SSH Tunnel to the service.
SSHClientCert	A certificate to be used for authenticating the SSHUser.
SSHClientCertPassword	The password of the SSHClientCert key if it has one.
SSHClientCertSubject	The subject of the SSH client certificate.
SSHClientCertType	The type of SSHClientCert private key.
SSHServer	The SSH server.
SSHPort	The SSH port.
SSHUser	The SSH user.
SSHPassword	The SSH password.
SSHServerFingerprint	The SSH server fingerprint.
UseSSH	Whether to tunnel the Amazon Redshift connection over SSH. Use SSH.

The authentication method used when establishing an SSH Tunnel to the service.

Possible Values

None, Password, Public_Key

Data Type

string

Default Value

"Password"

Remarks

• None: No authentication is performed. The current User value is ignored, and the connection is logged in as anonymous.
• Password: The Cloud uses the values of User and Password to authenticate the user.
• Public_Key: The Cloud uses the values of User and SSHClientCert to authenticate the user. SSHClientCert must have a private key available for this authentication method to succeed.

A certificate to be used for authenticating the SSHUser.

Data Type

string

Default Value

""

Remarks

SSHClientCert must contain a valid private key in order to use public key authentication. A public key is optional, if one is not included then the Cloud generates it from the private key. The Cloud sends the public key to the server and the connection is allowed if the user has authorized the public key.

The SSHClientCertType field specifies the type of the key store specified by SSHClientCert. If the store is password protected, specify the password in SSHClientCertPassword.

Some types of key stores are containers which may include multiple keys. By default the Cloud will select the first key in the store, but you can specify a specific key using SSHClientCertSubject.

The password of the SSHClientCert key if it has one.

Data Type

string

Default Value

""

Remarks

This property is only used when authenticating to SFTP servers with SSHAuthMode set to PublicKey and SSHClientCert set to a private key.

The subject of the SSH client certificate.

Data Type

string

Default Value

"*"

Remarks

When loading a certificate the subject is used to locate the certificate in the store.

If an exact match is not found, the store is searched for subjects containing the value of the property.

If a match is still not found, the property is set to an empty string, and no certificate is selected.

The special value "*" picks the first certificate in the certificate store.

The certificate subject is a comma separated list of distinguished name fields and values. For instance "CN=www.server.com, OU=test, C=US, [email protected]". Common fields and their meanings are displayed below.

Field	Meaning
CN	Common Name. This is commonly a host name like www.server.com.
O	Organization
OU	Organizational Unit
L	Locality
S	State
C	Country
E	Email Address

If a field value contains a comma it must be quoted.

The type of SSHClientCert private key.

Possible Values

USER, MACHINE, PFXFILE, PFXBLOB, JKSFILE, JKSBLOB, PEMKEY_FILE, PEMKEY_BLOB, PPKFILE, PPKBLOB, XMLFILE, XMLBLOB

Data Type

string

Default Value

"PEMKEY_FILE"

Remarks

This property can take one of the following values:

Types	Description	Allowed Blob Values
MACHINE/USER		Blob values are not supported.
JKSFILE/JKSBLOB		base64-only
PFXFILE/PFXBLOB	A PKCS12-format (.pfx) file. Must contain both a certificate and a private key.	base64-only
PEMKEY_FILE/PEMKEY_BLOB	A PEM-format file. Must contain an RSA, DSA, or OPENSSH private key. Can optionally contain a certificate matching the private key.	base64 or plain text. Newlines may be replaced with spaces when providing the blob as text.
PPKFILE/PPKBLOB	A PuTTY-format private key created using the puttygen tool.	base64-only
XMLFILE/XMLBLOB	An XML key in the format generated by the .NET RSA class: RSA.ToXmlString(true).	base64 or plain text.

The SSH server.

Data Type

string

Default Value

""

Remarks

The SSH server.

The SSH port.

Data Type

string

Default Value

"22"

Remarks

The SSH port.

The SSH user.

Data Type

string

Default Value

""

Remarks

The SSH user.

The SSH password.

Data Type

string

Default Value

""

Remarks

The SSH password.

The SSH server fingerprint.

Data Type

string

Default Value

""

Remarks

The SSH server fingerprint.

Whether to tunnel the Amazon Redshift connection over SSH. Use SSH.

Data Type

bool

Default Value

false

Remarks

By default the Cloud will attempt to connect directly to Amazon Redshift. When this option is enabled, the Cloud will instead establish an SSH connection with the SSHServer and tunnel the connection to Amazon Redshift through it.

This section provides a complete list of the Logging properties you can configure in the connection string for this provider.

---

Property	Description
Verbosity	The verbosity level that determines the amount of detail included in the log file.

The verbosity level that determines the amount of detail included in the log file.

Data Type

string

Default Value

"1"

Remarks

The verbosity level determines the amount of detail that the Cloud reports to the Logfile. Verbosity levels from 1 to 5 are supported. These are detailed in the Logging page.

This section provides a complete list of the Schema properties you can configure in the connection string for this provider.

---

Property	Description
BrowsableSchemas	This property restricts the schemas reported to a subset of the available schemas. For example, BrowsableSchemas=SchemaA,SchemaB,SchemaC.
IgnoredSchemas	Visibility restriction filter which is used to hide the list of schemas by metadata quering. For example, 'information_schema, pg_catalog'. Schema names are case sensitive.

This property restricts the schemas reported to a subset of the available schemas. For example, BrowsableSchemas=SchemaA,SchemaB,SchemaC.

Data Type

string

Default Value

""

Remarks

Listing the schemas from databases can be expensive. Providing a list of schemas in the connection string improves the performance.

Visibility restriction filter which is used to hide the list of schemas by metadata quering. For example, 'information_schema, pg_catalog'. Schema names are case sensitive.

Data Type

string

Default Value

""

Remarks

By default restrictions are not applied.

This section provides a complete list of the Miscellaneous properties you can configure in the connection string for this provider.

---

Property	Description
AllowPreparedStatement	Prepare a query statement before its execution.
COPYConversionParameters	Specifies the coma separated list of parameter to use in the COPY command when InsertMode is S3Staging or S3StagingWithIAM. Supported parameters are: BLANKSASNULL DELIMITER EMPTYASNULL EXPLICIT_IDS NULL AS TRIMBLANKS TRUNCATECOLUMNS.
FetchResultSetMetadata	This field sets whether the provider retrieves metadata pertaining to the schema and table name for resultset columns returned by the server.
InsertMode	Specifies what method to use when inserting bulk data. By default DML mode is used.
MaxRows	Limits the number of rows returned when no aggregation or GROUP BY is used in the query. This takes precedence over LIMIT clauses.
RedshiftToS3RoleARN	The Amazon Resource Name of the role to use when authenticating S3 with IAM role by the COPY command for the bulk inserts.
S3Bucket	Specifies the name of AWS S3 bucket to upload bulk data for staging.
S3BucketFolder	Specifies the name of the folder in AWS S3 bucket to upload bulk data for staging. By default bulk data are staged in the root folder.
StripOutNulls	When set the null characters are stripped out from character values in bulk operations.
Timeout	The value in seconds until the timeout error is thrown, canceling the operation.
TimeZone	Set time zone for the current session.
UseUIDForStaging	Use this property in combination with InsertMode assigned with S3Staging or S3StagingWithIAM. By default the the driver creates staging files with names that prepend the targeted table's name, so the files are overwritten between sessions. When the property is set to True , the provider additionally attaches temporary unique identifiers to these names. It may be required if you use parallel jobs to insert rows into the same table. Thus, the staging files are not overwritten by the jobs. A caveat is that using this property adds to the number of staging files put onto S3 bucket, since the file names are not controlled by the driver between different sessions. In this case you may want to define an AWS S3 policy on the bucket to remove staging files that were stored in a bucket automatically.

Prepare a query statement before its execution.

Data Type

bool

Default Value

true

Remarks

If the AllowPreparedStatement property is set to false, statements are parsed each time they are executed. Setting this property to false can be useful if you are executing many different queries only once.

If you are executing the same query repeatedly, you will generally see better performance by leaving this property at the default, true. Preparing the query avoids recompiling the same query over and over. However, prepared statements also require the Cloud to keep the connection active and open while the statement is prepared.

Specifies the coma separated list of parameter to use in the COPY command when InsertMode is S3Staging or S3StagingWithIAM. Supported parameters are: BLANKSASNULL DELIMITER EMPTYASNULL EXPLICIT_IDS NULL AS TRIMBLANKS TRUNCATECOLUMNS.

Data Type

string

Default Value

""

Remarks

All parameteres are optional. By default all but 'NULL AS' and 'DELIMITER' are inactive. Default 'DELIMITER' is comma char. See also UseUIDForStaging for more details about the value used as a null mark.

This field sets whether the provider retrieves metadata pertaining to the schema and table name for resultset columns returned by the server.

Data Type

bool

Default Value

false

Remarks

By default, the Cloud will not request that the server provides detailed information about resultset columns like the table name or schema name. It requires issuing additional metadata queries via Cloud , and it may affect query performance essentially in some scenarios. Consider setting this property to True when you need such detailed descriptive information for the resultset columns.

Specifies what method to use when inserting bulk data. By default DML mode is used.

Possible Values

DML, S3Staging, S3StagingWithIAM

Data Type

string

Default Value

"DML"

Remarks

When this is set to DML the Cloud uses Insert SQL statements to upload bulk data.

When this is set to S3Staging the Cloud uses the bulk upload API to upload data to the AWS S3 staging folder.

Bulk Insertion

InsertMode provides the following options for executing a bulk insert operation by the driver:

1. DML: This is the default option for sending multiple INSERT statements to the server by the driver in bulk. In this case, the driver issues a multi-row INSERT statement with respective syntax supported by the server. See Use a multi-row insert in the Amazon Redshift documentation.
2. S3Staging: This option involves two steps. Initially, multiple rows are streamed to the Amazon S3 bucket in CSV format. A staging CSV file is then created in the bucket. In the second step, Redshift's COPY FROM command copies the staged CSV file to a database. See COPY in the Amazon Redshift documentation for more information.

   The minimum set of policies required to connect AWS S3 by an IAM user, or a role assumed by it, are:

   • S3:ListBucket
   • S3:GetObject
   • S3:PutObject.

   Note that this mode uses your AWSAccessKey and AWSSecretKey in COPY commands that are sent to the server. This could present a security concern. If you want to hide sensitive information, use the S3StagingWithIAM mode instead.

3. S3StagingWithIAM: This option is similar to S3Staging, but it uses an IAM role parameter for the COPY command.

   The AWSAccessKey and AWSSecretKey are still required to connect in this mode, but they are not be included in the COPY commands sent to Redshift.

NOTE:If you choose the S3Staging or S3StagingWithIAM insert mode, and if you set the UseUIDForStaging connection property to True, you may want to define an AWS S3 policy on the bucket to remove staging files that are automatically stored in the bucket.

See also:

• AllowPreparedStatement
• RedshiftToS3RoleARN

Limits the number of rows returned when no aggregation or GROUP BY is used in the query. This takes precedence over LIMIT clauses.

Data Type

int

Default Value

-1

Remarks

Limits the number of rows returned when no aggregation or GROUP BY is used in the query. This takes precedence over LIMIT clauses.

The Amazon Resource Name of the role to use when authenticating S3 with IAM role by the COPY command for the bulk inserts.

Data Type

string

Default Value

"default"

Remarks

By default, if this property is not set, the COPY command uses 'default' value for the IAM role.

Specifies the name of AWS S3 bucket to upload bulk data for staging.

Data Type

string

Default Value

""

Remarks

Specifies the name of the folder in AWS S3 bucket to upload bulk data for staging. By default bulk data are staged in the root folder.

Data Type

string

Default Value

""

Remarks

When set the null characters are stripped out from character values in bulk operations.

Data Type

bool

Default Value

false

Remarks

The value in seconds until the timeout error is thrown, canceling the operation.

Data Type

int

Default Value

10

Remarks

If Timeout = 0, operations do not time out. The operations run until they complete successfully or until they encounter an error condition.

If Timeout expires and the operation is not yet complete, the Cloud throws an exception.

Set time zone for the current session.

Data Type

string

Default Value

""

Remarks

If the TimeZone property is not set, provider uses client system time zone. Setting this property can be useful when you need the server to convert time with time zone and timestamp with timezone values to specific time zone, which is different than client's system time zone.

Use this property in combination with InsertMode assigned with S3Staging or S3StagingWithIAM. By default the the driver creates staging files with names that prepend the targeted table's name, so the files are overwritten between sessions. When the property is set to True , the provider additionally attaches temporary unique identifiers to these names. It may be required if you use parallel jobs to insert rows into the same table. Thus, the staging files are not overwritten by the jobs. A caveat is that using this property adds to the number of staging files put onto S3 bucket, since the file names are not controlled by the driver between different sessions. In this case you may want to define an AWS S3 policy on the bucket to remove staging files that were stored in a bucket automatically.

Data Type

bool

Default Value

false

Remarks