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Supported File Formats

When writes data to Amazon S3, you can choose the file format for the exported data. The following file formats are supported for the Amazon S3 destination:
  • (Default) Delta Parquet—A format that uses a Delta Lake storage layer on top of the Parquet file format that is used by to support delta processing. Delta processing is a method where, after your initial job run, only new or modified files are written or read in subsequent runs, which can reduce job times and resource use. Limitations:
    • Naming restrictions: Table and column names cannot include special characters or reserved SQL and Delta Lake keywords. Examples of special characters include spaces, commas, semicolons, braces, parentheses, equal signs, and the newline (\n) and tab (\t) characters.
    • Primary keys: Primary key constraints are not supported. uses the source primary keys for incremental replication.
    • Data types: Unlike traditional databases, Delta Lake does not support column-size definitions (for example, VARCHAR(100)). It supports only a fixed set of data types and allows type widening when necessary.
    • Schema changes: The ALTER TABLE command supports only adding new columns. Changing the data type of an existing column (for example, from INT to VARCHAR) is not supported.
    • Delete operations: In standard jobs, both hard and soft deletions are supported. In CDC and enhanced CDC jobs, only soft deletions are supported.
  • Apache Iceberg—A high-performance table format that supports atomicity, consistency, isolation, and durability (ACID) transactions and schema evolution.
  • CSV—Plain text comma-separated values.
  • Avro—A row-based binary format that supports schema evolution.
  • Parquet—A columnar storage format that is optimized for analytics.

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Authenticate to Amazon S3

After you add the connector, you need to set the required properties.
  • File Format: Select the file format that you want to use: Delta Parquet, Apache Iceberg,CSV (default), Avro, or Parquet.
  • URI: Enter the path of your bucket and folder (for example, s3://BucketName/FolderName).
  • AWS Region: Select the hosting region for Amazon Web Services. The default region is NORTHERNVIRGINIA.
supports authenticating to Amazon S3 in several ways, based on the file format that you select. Note: The full list of authentication methods above are for all file formats except Delta Parquet. That format uses only the AWS Root Keys method.

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AWS Root Keys

  • (Optional) MFA Serial Number: Enter the serial number for your multifactor authentication (MFA) device, if you are using such a device.
  • (Optional) MFA Token: Enter the temporary token that is available from your MFA device.
  • Temporary Token Duration: Enter the duration, in seconds, that you want for your temporary credentials. The default duration is 3600.

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AWS EC2 Roles

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AWS IAM Roles

  • (Optional) MFA Serial Number: Enter the serial number for your multifactor authentication (MFA) device, if you are using such a device.
  • (Optional) MFA Token: Enter the temporary token that is available from your MFA device.
  • Temporary Token Duration: Enter the duration, in seconds, that you want for your temporary credentials. The default duration is 3600.

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Active Directory Federation Services

To connect with single sign-on (SSO) via Active Directory Federation Services (ADFS), specify the following properties:
  • Auth Scheme: Select ADFS.
  • User: Enter the username that you use to authenticate to your ADFS account.
  • Password: Enter the password that you use to authenticate to your ADFS account.
  • SSO Login URL: Enter the login URL that is used by your SSO provider.
  • Use Lake Formation: Select whether you want the AWS Lake Formation service to retrieve temporary credentials. These temporary credentials enforce access policies against the user based on the configured IAM role. You can use this service when you authenticate through AzureAD, Okta, ADFS, and PingFederate, while providing a Security Assertion Markup Language (SAML) assertion. By default, the Enable checkbox is not selected.
  • (Optional) SSO Properties: Enter a semicolon-separated list of the single sign-on (SSO) properties that you want to use (for example, SSOProperty1=Value1;SSOProperty2=Value2; …).

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Okta

To connect with single sign-on (SSO) via Okta, specify the following properties:
  • Auth Scheme: Select Okta.
  • User: Enter the username that you use to authenticate to your Okta account.
  • Password: Enter the password that you use to authenticate to your Okta account.
  • SSO Login URL: Enter the login URL that is used by your SSO provider.
  • Use Lake Formation: Select whether you want the AWS Lake Formation service to retrieve temporary credentials. These temporary credentials enforce access policies against the user based on the configured IAM role. You can use this service when you authenticate through AzureAD, Okta, ADFS, and PingFederate, while providing a Security Assertion Markup Language (SAML) assertion. By default, the Enable checkbox is not selected.
  • (Optional) SSO Properties: Enter a semicolon-separated list of the single sign-on (SSO) properties that you want to use (for example, SSOProperty1=Value1;SSOProperty2=Value2;…).

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PingFederate

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AWS Temporary Credentials

To connect with AWS temporary credentials, specify the following properties:
  • Auth Scheme: Select AwsTempCredentials.
  • AWS Access Key: Enter the access key that is associated with your Amazon Web Services (AWS) account. This value is accessible from your AWS security credentials page.
  • AWS Secret Key: Enter the secret key that is associated with your AWS account. This value is accessible from your AWS security credentials page.
  • AWS Session Token: Enter your AWS session token. This token is provided with your temporary credentials. For more information, see AWS Identity and Access Management: User Guide.

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AWS Credentials File

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Azure Active Directory

To connect with an Azure Active Directory (AD) user account, specify the following properties:
  • Auth Scheme: Select AzureAD.
  • Use Lake Formation: Select whether you want the AWS Lake Formation service to retrieve temporary credentials. These temporary credentials enforce access policies against the user based on the configured IAM role. You can use this service when you authenticate through AzureAD, Okta, ADFS, and PingFederate, while providing a Security Assertion Markup Language (SAML) assertion. By default, the Enable checkbox is not selected.
  • OAuth Client Id: Enter the client Id that you were assigned when you registered your application with an OAuth authorization server.
  • OAuth Client Secret: Enter the client secret that you were assigned when you registered your application with an OAuth authorization server.

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Complete Your Connection

To complete your connection:
  1. Specify the following properties: For all formats: (Optional) Storage Base URL: Enter the URL of your cloud-storage service provider. For the Delta Parquet and CSV file formats only:
    • FMT: Enter the format that you want to use to parse all text files. The default format is CsvDelimited.
    • Aggregate Files: Specify whether you want to aggregate all the files that are located in the URI directory and that have the same schema into a single table named AggregatedFiles. The default option is False.
    • Include Column Headers: Select whether you want to obtain column headers from the first lines of the specified files. By default, the Enable checkbox is already selected.
    For all file formats except Delta Parquet:
    • Data Model: Select the data model that you want to use to parse documents for your format and to generate the database metadata. The default data model is Document.
    • Aggregate Files: Select whether you want to aggregate all the files that are located in the URI directory and that have the same schema into a single table named AggregatedFiles. By default, the Enable checkbox is not selected.
  2. Define advanced connection settings on the Advanced tab. (In most cases, though, you should not need these settings.)
  3. Click Create & Test to create your connection.