Tableau Connector for Parquet

Build 25.0.9434

Miscellaneous

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


PropertyDescription
AggregateFilesWhen 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.
BatchSizeSpecifies the maximum number of rows included in each batch submitted during batch operations. To submit the entire batch as a single request, set BatchSize to 0 .
CharsetSpecifies the session character set for encoding and decoding character data transferred to and from the Parquet file. The default value is UTF-8.
ClientCultureThis 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'.
CompressionSpecifies which compression encoding to be used when creating .parquet files using Create Table Statement and Bulk Inserts.
ConnectionLifeTimeSpecifies the maximum lifetime of a connection in seconds. When the specified time elapses, the provider closes the connection.
ConnectOnOpenSpecifies whether the provider establishes a connection to Parquet immediately upon opening the connection. Set ConnectOnOpen to True if immediate connectivity verification is necessary.
CultureThis 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.
DeleteDownloadedFilesWhen set to true, the provider will delete parsed .parquet files downloaded from cloud sources.
DirectoryRetrievalDepthLimit the subfolders recursively scanned when IncludeSubdirectories is enabled.
EnableDictionaryWhen set to true, the provider will enable dictionary encoding when creating .parquet files using Create Table Statement and Bulk Inserts.
ExcludeFilesComma-separated list of file extensions to exclude from the set of the files modeled as tables.
ExcludeStorageClassesA comma seperated list of storage classes to ignore.
FolderIdThe 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.
IncludeDropboxTeamResourcesIndicates if you want to include Dropbox team files and folders.
IncludeFilesComma-separated list of file extensions to include into the set of the files modeled as tables.
IncludeItemsFromAllDrivesWhether Google Drive shared drive items should be included in results. If not present or set to false, then shared drive items are not returned.
IncludeSubdirectoriesWhether to read files from nested folders. In the case of a name collision, table names are prefixed by the underscore-separated folder names.
InsertModeThe behavior when using bulk inserts to create Parquet files.
MaxRowsSpecifies the maximum number of rows returned for queries that do not include either aggregation or GROUP BY.
MetadataDiscoveryURIUsed when aggregating multiple files into one table, this property specifies a specific file to read to determined the aggregated table schema.
OtherSpecifies additional hidden properties for specific use cases., to be used only when our Support team advises it, to address specific issues. See Remarks for details.
PageSize(Optional) PageSize value.
PathSeparatorDetermines the character which will be used to replace the file separator.
PoolIdleTimeoutSpecifies the maximum idle time, in seconds, that a connection can remain in the pool before being closed. Requires UseConnectionPooling=True.
PoolMaxSizeSpecifies the maximum number of connections allowed in the connection pool.
PoolMinSizeSpecifies the minimum number of connections to be maintained in the connection pool at all times.
PoolWaitTimeSpecifies the maximum number of seconds a connection request waits for an available connection in the pool. If the wait exceeds this time, an error is returned.
PseudoColumnsSpecifies the pseudocolumns to expose as table columns, expressed as a string in the format 'TableName=ColumnName;TableName=ColumnName'.
ReadonlyToggles read-only access to Parquet from the provider.
RTKSpecifies the runtime key for licensing the provider. If unset or invalid, the provider defaults to the standard licensing method. This property is only required in environments where the standard licensing method is unsupported or requires a runtime key.
TemporaryLocalFolderThe path, or URI, to the folder that is used to temporarily download parquet file(s).
TimeoutSpecifies the maximum time, in seconds, that the provider waits for a server response before throwing a timeout error.
UseConnectionPoolingEnables the connection pooling feature, which allows the provider to reuse existing connections instead of creating new ones for each request.
UserDefinedViewsSpecifies a filepath to a JSON configuration file that defines custom views. The provider automatically detects and uses the views specified in this file.

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Build 25.0.9434