ADO.NET Provider for Amazon Athena

Build 24.0.9060

Connection String Options

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 connecting, see Establishing a Connection.

Authentication


PropertyDescription
AthenaVPCEndpointYour Athena VPC Endpoint. It will override the default athena.{region}.amazonaws.com endpoint.
S3StagingDirectorySpecifies the location Amazon Athena will use to store the results of a query.
EncryptionTypeSpecifies the encryption option for query results in Athena.
EncryptionKeySpecifies the encryption key when encrypting results stored in S3.
DataSourceThe name of the Athena Data Source.
DatabaseThe name of the Athena database.

Connection


PropertyDescription
CrossAccountIdThe Account Id to use when retrieving metadata from Glue. Default is current account id.
SimpleUploadLimitThis setting specifies the threshold, in bytes, above which the provider will choose to perform a multipart upload rather than uploading everything in one request.
UseLakeFormationWhen this property is set to true, AWSLakeFormation service will be used to retrieve temporary credentials, which enforce access policies against the user based on the configured IAM role. The service can be used when authenticating through OKTA, ADFS, AzureAD, PingFederate, while providing a SAML assertion.

AWS Authentication


PropertyDescription
AuthSchemeThe scheme used for authentication. Accepted entries are: , AwsRootKeys , AwsIAMRoles , AwsEC2Roles , ADFS, Okta, PingFederate , AwsCredentialsFile , AwsCognitoBasic , AwsCognitoSrp.
AWSAccessKeyYour AWS account access key. This value is accessible from your AWS security credentials page.
AWSSecretKeyYour AWS account secret key. This value is accessible from your AWS security credentials page.
AWSRoleARNThe Amazon Resource Name of the role to use when authenticating.
AWSPrincipalARNThe ARN of the SAML Identity provider in your AWS account.
AWSRegionThe hosting region for your Amazon Web Services.
AWSCredentialsFileThe path to the AWS Credentials File to be used for authentication.
AWSCredentialsFileProfileThe name of the profile to be used from the supplied AWSCredentialsFile.
AWSSessionTokenYour AWS session token.
AWSExternalIdA unique identifier that might be required when you assume a role in another account.
MFASerialNumberThe serial number of the MFA device if one is being used.
MFATokenThe temporary token available from your MFA device.
CredentialsLocationThe location of the settings file where MFA credentials are saved.
TemporaryTokenDurationThe amount of time (in seconds) a temporary token will last.
AWSCognitoRegionThe hosting region for AWS Cognito.
AWSUserPoolIdThe User Pool Id.
AWSUserPoolClientAppIdThe User Pool Client App Id.
AWSUserPoolClientAppSecretOptional. The User Pool Client App Secret.
AWSIdentityPoolIdThe Identity Pool Id.
AWSWebIdentityTokenThe OAuth 2.0 access token or OpenID Connect ID token that is provided by an identity provider.

SSO


PropertyDescription
UserThe IDP user used to authenticate the IDP via SSO.
PasswordThe password used to authenticate the IDP user via SSO.
SSOLoginURLThe identity provider's login URL.
SSOPropertiesAdditional properties required to connect to the identity provider in a semicolon-separated list.
SSOExchangeUrlThe URL used for consuming the SAML response and exchanging it for service specific credentials.

OAuth


PropertyDescription
InitiateOAuthSet this property to initiate the process to obtain or refresh the OAuth access token when you connect.
OAuthClientIdThe client Id assigned when you register your application with an OAuth authorization server.
OAuthClientSecretThe client secret assigned when you register your application with an OAuth authorization server.
OAuthAccessTokenThe access token for connecting using OAuth.
OAuthSettingsLocationThe location of the settings file where OAuth values are saved when InitiateOAuth is set to GETANDREFRESH or REFRESH . Alternatively, you can hold this location in memory by specifying a value starting with 'memory://'.
CallbackURLThe OAuth callback URL to return to when authenticating. This value must match the callback URL you specify in your app settings.
OAuthVerifierThe verifier code returned from the OAuth authorization URL.
OAuthRefreshTokenThe OAuth refresh token for the corresponding OAuth access token.
OAuthExpiresInThe lifetime in seconds of the OAuth AccessToken.
OAuthTokenTimestampThe Unix epoch timestamp in milliseconds when the current Access Token was created.

SSL


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

Firewall


PropertyDescription
FirewallTypeThe protocol used by a proxy-based firewall.
FirewallServerThe name or IP address of a proxy-based firewall.
FirewallPortThe TCP port for a proxy-based firewall.
FirewallUserThe user name to use to authenticate with a proxy-based firewall.
FirewallPasswordA password used to authenticate to a proxy-based firewall.

Proxy


PropertyDescription
ProxyAutoDetectWhen this connection property is set to True, the provider checks your system proxy settings for existing proxy server configurations (no need to manually supply proxy server details). Set to False if you want to manually configure the provider to connect to a specific proxy server.
ProxyServerThe hostname or IP address of the proxy server that you want to route HTTP traffic through.
ProxyPortThe TCP port that the proxy server (specified in the ProxyServer connection property) is running on.
ProxyAuthSchemeThe authentication method the provider uses when authenticating to the proxy server specified in the ProxyServer connection property.
ProxyUserThe username of a user account registered with the proxy server specified in the ProxyServer connnection property.
ProxyPasswordThe password associated with the user specified in the ProxyUser connection property.
ProxySSLTypeThe SSL type to use when connecting to the ProxyServer proxy.
ProxyExceptionsA semicolon separated list of destination hostnames or IPs that are exempt from connecting through the ProxyServer .

Logging


PropertyDescription
LogfileA filepath which designates the name and location of the log file.
VerbosityThe verbosity level that determines the amount of detail included in the log file.
LogModulesCore modules to be included in the log file.
MaxLogFileSizeA string specifying the maximum size in bytes for a log file (for example, 10 MB).
MaxLogFileCountA string specifying the maximum file count of log files.

Schema


PropertyDescription
LocationA path to the directory that contains the schema files defining tables, views, and stored procedures.
BrowsableSchemasThis property restricts the schemas reported to a subset of the available schemas. For example, BrowsableSchemas=SchemaA,SchemaB,SchemaC.
TablesThis property restricts the tables reported to a subset of the available tables. For example, Tables=TableA,TableB,TableC.
ViewsRestricts the views reported to a subset of the available tables. For example, Views=ViewA,ViewB,ViewC.
FlattenArraysBy default, arrays are returned as strings of JSON. The FlattenArrays property can be used to flatten the elements of arrays into columns of their own. Set FlattenArrays to the number of elements you want to return from arrays.
FlattenObjectsSet FlattenObjects to true to flatten object properties into columns of their own. Otherwise, objects nested in arrays are returned as strings of JSON.

Caching


PropertyDescription
AutoCacheAutomatically caches the results of SELECT queries into a cache database specified by either CacheLocation or both of CacheConnection and CacheProvider .
CacheProviderThe name of the provider to be used to cache data.
CacheConnectionThe connection string for the cache database. This property is always used in conjunction with CacheProvider . Setting both properties will override the value set for CacheLocation for caching data.
CacheLocationSpecifies the path to the cache when caching to a file.
CacheToleranceThe tolerance for stale data in the cache specified in seconds when using AutoCache .
OfflineUse offline mode to get the data from the cache instead of the live source.
CacheMetadataThis property determines whether or not to cache the table metadata to a file store.

Miscellaneous


PropertyDescription
BatchSizeThe maximum size of each batch operation to submit.
CleanQueryResultsAmazon Athena produces cache files with every query, in the folder specified in S3StagingDirectory . CleanQueryResults specifies whether these files should be deleted once the connection is closed.
ConnectionLifeTimeThe maximum lifetime of a connection in seconds. Once the time has elapsed, the connection object is disposed.
EnableFIPSModeA boolean indicating if FIPS URLs should be enabled.
IncludeTableTypesIf set to true, the provider will query for the types of individual tables.
MaximumColumnSizeThe maximum column size.
MaxRowsLimits the number of rows returned when no aggregation or GROUP BY is used in the query. This takes precedence over LIMIT clauses.
MetadataDiscoveryMethodAPI to use to retrieve the metadata for Amazon Athena.
OtherThese hidden properties are used only in specific use cases.
PageSizeThe number of results to return per page of data retrieved from Amazon Athena.
PollingIntervalThis determines the polling interval in milliseconds to check whether the result is ready to be retrieved.
PoolIdleTimeoutThe allowed idle time for a connection before it is closed.
PoolMaxSizeThe maximum connections in the pool.
PoolMinSizeThe minimum number of connections in the pool.
PoolWaitTimeThe max seconds to wait for an available connection.
PseudoColumnsSpecify a set of pseudocolumns to expose as columns.
PushEmptyValuesAsNullIndicates whether to read the empty values as empty or as null.
QueryCachingLevelModifies the usage of query results stored in S3StagingDirectory . Cached queries will not be scanned again by Amazon Athena until the amount of seconds specified in QueryTolerance has passed.
QueryPassthroughThis option passes the query to the Amazon Athena server as is.
QueryTimeoutThe timeout in seconds for requests issued by the provider to download large result sets.
QueryToleranceSpecifies the amount of time in seconds queries cache for if QueryCachingLevel is not set to None.
ResultFetcherThe fetcher that will be used to download query results.
RTKThe runtime key used for licensing.
ShowS3FilepathWhether or not to expose the _S3Path column for the Amazon Athena tables.
SkipHeaderLineCountSpecifies the number of header rows to skip for SELECT queries.
TimeoutThe value in seconds until the timeout error is thrown, canceling the operation.
UseConnectionPoolingThis property enables connection pooling.
UserDefinedViewsA filepath pointing to the JSON configuration file containing your custom views.
WorkgroupWork group of the executed queries.

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Build 24.0.9060