Miscellaneous
This section provides a complete list of the Miscellaneous properties you can configure in the connection string for this provider.
| Property | Description |
| BatchSize | Specifies 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 . |
| ConnectionLifeTime | Specifies the maximum lifetime of a connection in seconds. When the specified time elapses, the provider closes the connection. |
| ConnectOnOpen | Specifies whether the provider establishes a connection to Apache Impala immediately upon opening the connection. Set ConnectOnOpen to True if immediate connectivity verification is necessary. |
| HTTPPath | The path component of the URL endpoint when using HTTP TransportMode. |
| JGSSPrincipalAsDBUser | Whether to use the Kerberos principal as the database username. Only applies when UseJGSS is enabled. |
| MaxRows | Specifies the maximum number of rows returned for queries that do not include either aggregation or GROUP BY. |
| Other | Specifies 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 | Specifies the maximum number of records per page the provider returns when requesting data from Apache Impala. |
| PoolIdleTimeout | Specifies the maximum idle time, in seconds, that a connection can remain in the pool before being closed. Requires UseConnectionPooling=True. |
| PoolMaxSize | Specifies the maximum number of connections allowed in the connection pool. |
| PoolMinSize | Specifies the minimum number of connections to be maintained in the connection pool at all times. |
| PoolWaitTime | Specifies 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. |
| PseudoColumns | Specifies the pseudocolumns to expose as table columns, expressed as a string in the format 'TableName=ColumnName;TableName=ColumnName'. |
| QueryPassthrough | This option passes the query to the Apache Impala server as is. |
| Readonly | Toggles read-only access to Apache Impala from the provider. |
| RTK | Specifies 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. |
| ServerConfigurations | A list of server configuration variables to override the server defaults. |
| ServerTimeZone | Defines the timezone used by the server for conversions between UTC and local time. |
| Timeout | Specifies the maximum time, in seconds, that the provider waits for a server response before throwing a timeout error. |
| UseConnectionPooling | Enables the connection pooling feature, which allows the provider to reuse existing connections instead of creating new ones for each request. |
| UseJGSS | Specify whether to use native Java Kerberos Authentication (JGSS) for Kerberos Authentication. |
| UserDefinedViews | Specifies a filepath to a JSON configuration file that defines custom views. The provider automatically detects and uses the views specified in this file. |
| UseSSL | Specifies whether to use SSL Encryption when connecting to Impala. |