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 establishing a connection, see Establishing a Connection.
| Property | Description |
| AuthScheme | The type of authentication to use when connecting to remote services. |
| AccessKey | Your account access key. This value is accessible from your security credentials page. |
| SecretKey | Your account secret key. This value is accessible from your security credentials page. |
| ApiKey | The API Key used to identify the user to IBM Cloud. |
| User | The user account used to authenticate. |
| Password | The password used to authenticate the user. |
| SharePointEdition | The edition of SharePoint being used. Set either SharePointOnline or SharePointOnPremise. |
| ImpersonateUserMode | Specify the type of the user impersonation. It should be whether the User mode or the Admin mode. |
| Property | Description |
| ConnectionType | Specifies the file storage service, server, or file access protocol through which your Parquet files are stored and retreived. |
| URI | The Uniform Resource Identifier (URI) for the Parquet resource location. |
| DataModel | Specifies the data model to use when parsing Parquet documents and generating the database metadata. |
| Region | The hosting region for your S3-like Web Services. |
| ProjectId | The Id of the project where your Google Cloud Storage instance resides. |
| OracleNamespace | The Oracle Cloud Object Storage namespace to use. |
| StorageBaseURL | The URL of a cloud storage service provider. |
| UseVirtualHosting | If true (default), buckets will be referenced in the request using the hosted-style request: http://yourbucket.s3.amazonaws.com/yourobject. If set to false, the bean will use the path-style request: http://s3.amazonaws.com/yourbucket/yourobject. Note that this property will be set to false, in case of an S3 based custom service when the CustomURL is specified. |
| UseLakeFormation | When 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. |
| Property | Description |
| AWSAccessKey | Your AWS account access key. This value is accessible from your AWS security credentials page. |
| AWSSecretKey | Your AWS account secret key. This value is accessible from your AWS security credentials page. |
| 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. |
| AWSCredentialsFile | The path to the AWS Credentials File to be used for authentication. |
| AWSCredentialsFileProfile | The name of the profile to be used from the supplied AWSCredentialsFile. |
| AWSSessionToken | Your AWS session token. |
| AWSExternalId | A unique identifier that might be required when you assume a role in another account. |
| MFASerialNumber | The serial number of the MFA device if one is being used. |
| MFAToken | The temporary token available from your MFA device. |
| CredentialsLocation | The location of the settings file where MFA credentials are saved. |
| TemporaryTokenDuration | The amount of time (in seconds) a temporary token will last. |
| AWSWebIdentityToken | The OAuth 2.0 access token or OpenID Connect ID token that is provided by an identity provider. |
| ServerSideEncryption | When activated, file uploads into Amazon S3 buckets will be server-side encrypted. |
| SSEContext | A BASE64-encoded UTF-8 string holding JSON which represents a string-string (key-value) map. |
| SSEEnableS3BucketKeys | Configuration to use an S3 Bucket Key at the object level when encrypting data with AWS KMS. Enabling this will reduce the cost of server-side encryption by lowering calls to AWS KMS. |
| SSEKey | A symmetric encryption KeyManagementService key, that is used to protect the data when using ServerSideEncryption. |
| Property | Description |
| AzureStorageAccount | The name of your Azure storage account. |
| AzureAccessKey | The storage key associated with your Azure account. |
| AzureSharedAccessSignature | A shared access key signature that may be used for authentication. |
| AzureTenant | The Microsoft Online tenant being used to access data. If not specified, your default tenant is used. |
| AzureEnvironment | The Azure Environment to use when establishing a connection. |
| Property | Description |
| SSOLoginURL | The identity provider's login URL. |
| SSOProperties | Additional properties required to connect to the identity provider, formatted as a semicolon-separated list. |
| SSOExchangeUrl | The URL used for consuming the SAML response and exchanging it for service specific credentials. |
| Property | Description |
| OAuthJWTCert | The JWT Certificate store. |
| OAuthJWTCertType | The type of key store containing the JWT Certificate. |
| OAuthJWTCertPassword | The password for the OAuth JWT certificate. |
| OAuthJWTCertSubject | The subject of the OAuth JWT certificate. |
| OAuthJWTSubjectType | The SubType for the JWT authentication. |
| OAuthJWTPublicKeyId | The Id of the public key for JWT. |
| Property | Description |
| KerberosKDC | The Kerberos Key Distribution Center (KDC) service used to authenticate the user. |
| KerberosRealm | The Kerberos Realm used to authenticate the user. |
| KerberosSPN | The service principal name (SPN) for the Kerberos Domain Controller. |
| KerberosUser | The principal name for the Kerberos Domain Controller. Used in the format host/user@realm. |
| KerberosKeytabFile | The Keytab file containing your pairs of Kerberos principals and encrypted keys. |
| KerberosServiceRealm | The Kerberos realm of the service. |
| KerberosServiceKDC | The Kerberos KDC of the service. |
| KerberosTicketCache | The full file path to an MIT Kerberos credential cache file. |
| Property | Description |
| InitiateOAuth | Set this property to initiate the process to obtain or refresh the OAuth access token when you connect. |
| OAuthVersion | The version of OAuth being used. |
| 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. |
| OAuthAccessToken | The access token for connecting using OAuth. |
| OAuthAccessTokenSecret | The OAuth access token secret for connecting using OAuth. |
| SubjectId | The user subject for which the application is requesting delegated access. |
| SubjectType | The Subject Type for the Client Credentials authentication. |
| OAuthSettingsLocation | The 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://'. |
| CallbackURL | The OAuth callback URL to return to when authenticating. This value must match the callback URL you specify in your app settings. |
| Scope | Specify scope to obtain the initial access and refresh token. |
| OAuthGrantType | The grant type for the OAuth flow. |
| OAuthPasswordGrantMode | Specifies how the OAuth Client Id and Client Secret should be passed. Supported options: BASIC and POST. |
| OAuthIncludeCallbackURL | Whether to include the callback URL in an access token request. |
| OAuthAuthorizationURL | The authorization URL for the OAuth service. |
| OAuthAccessTokenURL | The URL to retrieve the OAuth access token from. |
| OAuthRefreshTokenURL | The URL to refresh the OAuth token from. |
| OAuthRequestTokenURL | The URL the service provides to retrieve request tokens from. This is required in OAuth 1.0. |
| OAuthVerifier | The verifier code returned from the OAuth authorization URL. |
| AuthToken | The authentication token used to request and obtain the OAuth Access Token. |
| AuthKey | The authentication secret used to request and obtain the OAuth Access Token. |
| OAuthParams | A comma-separated list of other parameters to submit in the request for the OAuth access token in the format paramname=value. |
| OAuthRefreshToken | The OAuth refresh token for the corresponding OAuth access token. |
| OAuthExpiresIn | The lifetime in seconds of the OAuth AccessToken. |
| OAuthTokenTimestamp | The Unix epoch timestamp in milliseconds when the current Access Token was created. |
| Property | Description |
| SSLClientCert | The TLS/SSL client certificate store for SSL Client Authentication (2-way SSL). |
| 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. |
| SSLMode | The authentication mechanism to be used when connecting to the FTP or FTPS server. |
| SSLServerCert | The certificate to be accepted from the server when connecting using TLS/SSL. |
| 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. |
| SSHUser | The SSH user. |
| SSHPassword | The SSH password. |
| Property | Description |
| FirewallType | The protocol used by a proxy-based firewall. |
| FirewallServer | The name or IP address of a proxy-based firewall. |
| FirewallPort | The TCP port for a proxy-based firewall. |
| FirewallUser | The user name to use to authenticate with a proxy-based firewall. |
| FirewallPassword | A password used to authenticate to a proxy-based firewall. |
| Property | Description |
| ProxyAutoDetect | When 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. |
| ProxyServer | The hostname or IP address of the proxy server that you want to route HTTP traffic through. |
| ProxyPort | The TCP port that the proxy server (specified in the ProxyServer connection property) is running on. |
| ProxyAuthScheme | The authentication method the provider uses when authenticating to the proxy server specified in the ProxyServer connection property. |
| ProxyUser | The username of a user account registered with the proxy server specified in the ProxyServer connnection property. |
| ProxyPassword | The password associated with the user specified in the ProxyUser connection property. |
| ProxySSLType | The SSL type to use when connecting to the ProxyServer proxy. |
| ProxyExceptions | A semicolon separated list of destination hostnames or IPs that are exempt from connecting through the ProxyServer . |
| Property | Description |
| Logfile | A filepath which designates the name and location of the log file. |
| Verbosity | The verbosity level that determines the amount of detail included in the log file. |
| LogModules | Core modules to be included in the log file. |
| MaxLogFileSize | A string specifying the maximum size in bytes for a log file (for example, 10 MB). |
| MaxLogFileCount | A string specifying the maximum file count of log files. |
| Property | Description |
| Location | A path to the directory that contains the schema files defining tables, views, and stored procedures. |
| BrowsableSchemas | This property restricts the schemas reported to a subset of the available schemas. For example, BrowsableSchemas=SchemaA,SchemaB,SchemaC. |
| Tables | This property restricts the tables reported to a subset of the available tables. For example, Tables=TableA,TableB,TableC. |
| Views | Restricts the views reported to a subset of the available tables. For example, Views=ViewA,ViewB,ViewC. |
| FlattenObjects | Set FlattenObjects to true to flatten object properties into columns of their own. Otherwise, objects nested in arrays are returned as strings of JSON. |
| FlattenArrays | By default, nested arrays are returned as strings. The FlattenArrays property can be used to flatten the elements of nested arrays into columns of their own. Set FlattenArrays to the number of elements you want to return from nested arrays. |
| Property | Description |
| AutoCache | Automatically caches the results of SELECT queries into a cache database specified by either CacheLocation or both of CacheConnection and CacheProvider . |
| CacheProvider | The name of the provider to be used to cache data. |
| CacheDriver | The database driver used to cache data. |
| CacheConnection | The 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. |
| CacheLocation | Specifies the path to the cache when caching to a file. |
| CacheTolerance | The tolerance for stale data in the cache specified in seconds when using AutoCache . |
| Offline | Use offline mode to get the data from the cache instead of the live source. |
| CacheMetadata | This property determines whether or not to cache the table metadata to a file store. |
| Property | Description |
| AggregateFiles | When set to true, the provider will aggregate all the files in URI directory into a single result. With this option enabled, the AggregatedFiles will be exposed which can be used to query the dataset. |
| Charset | Specifies the session character set for encoding and decoding character data transferred to and from the Parquet file. The default value is UTF-8. |
| ClientCulture | This property can be used to specify the format of data (e.g., currency values) that is accepted by the client application. This property can be used when the client application does not support the machine's culture settings. For example, Microsoft Access requires 'en-US'. |
| Compression | Specifies which compression encoding to be used when creating .parquet files using Create Table Statement and Bulk Inserts. |
| Culture | This setting can be used to specify culture settings that determine how the provider interprets certain data types that are passed into the provider. For example, setting Culture='de-DE' will output German formats even on an American machine. |
| DeleteDownloadedFiles | When set to true, the provider will delete parsed .parquet files downloaded from cloud sources. |
| DirectoryRetrievalDepth | Limit the subfolders recursively scanned when IncludeSubdirectories is enabled. |
| EnableDictionary | When set to true, the provider will enable dictionary encoding when creating .parquet files using Create Table Statement and Bulk Inserts. |
| ExcludeFiles | Comma-separated list of file extensions to exclude from the set of the files modeled as tables. |
| FolderId | The ID of a folder in Google Drive. If set, the resource location specified by the URI is relative to the Folder ID for all operations. |
| IncludeDropboxTeamResources | Indicates if you want to include Dropbox team files and folders. |
| IncludeFiles | Comma-separated list of file extensions to include into the set of the files modeled as tables. |
| IncludeItemsFromAllDrives | Whether Google Drive shared drive items should be included in results. If not present or set to false, then shared drive items are not returned. |
| IncludeSubdirectories | Whether to read files from nested folders. In the case of a name collision, table names are prefixed by the underscore-separated folder names. |
| InsertMode | The behavior when using bulk inserts to create Parquet files. |
| MaxRows | Limits the number of rows returned when no aggregation or GROUP BY is used in the query. This takes precedence over LIMIT clauses. |
| MetadataDiscoveryURI | Used when aggregating multiple files into one table, this property specifies a specific file to read to determined the aggregated table schema. |
| Other | These hidden properties are used only in specific use cases. |
| PageSize | (Optional) PageSize value. |
| PathSeparator | Determines the character which will be used to replace the file separator. |
| PseudoColumns | Specify a set of pseudocolumns to expose as columns. |
| Readonly | You can use this property to enforce read-only access to Parquet from the provider. |
| RTK | The runtime key used for licensing. |
| TemporaryLocalFolder | The path, or URI, to the folder that is used to temporarily download parquet file(s). |
| Timeout | The value in seconds until the timeout error is thrown, canceling the operation. |
| UserDefinedViews | A filepath pointing to the JSON configuration file containing your custom views. |