ODBC Driver for HarperDB

Build 22.0.8462

Miscellaneous

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


PropertyDescription
BatchSizeThe maximum size of each batch operation to submit.
DefaultDomainThis property is used for the Oracle Database Gateway for ODBC.
EnableForeignKeyDetectionWhether to detect the foreign keys in ODBC.
FlattenArraysSet FlattenArrays to the number of array elements you want to return as table columns. Otherwise, arrays are returned as strings of JSON.
FlattenObjectsSet FlattenObjects to true to flatten object properties into columns of their own. Otherwise, nested objects are returned as strings of JSON.
IncludeDualTableSet this property to mock the Oracle DUAL table for better compatibility with Oracle database.
LimitKeySizeThe maximum length of a primary key column.
MapBigintToVarcharThis property controls whether or not the bigint type maps to SQL_VARCHAR instead of SQL_BIGINT. This property is false by default.
MapToIntThis property controls whether or not the long type maps to SQL_INTEGER instead of SQL_BIGINT. This property is false by default.
MapToLongVarcharThis property controls whether or not a column is returned as SQL_LONGVARCHAR.
MapToWVarcharThis property controls whether or not string types map to SQL_WVARCHAR instead of SQL_VARCHAR. This property is set by default.
MaximumColumnSizeThe maximum column size.
MaxRowsLimits the number of rows returned rows when no aggregation or group by is used in the query. This helps avoid performance issues at design time.
OtherThese hidden properties are used only in specific use cases.
PseudoColumnsThis property indicates whether or not to include pseudo columns as columns to the table.
ReadonlyYou can use this property to enforce read-only access to HarperDB from the provider.
RefreshCachedSchemaAfterDDLWhether or not the driver should refresh cached metadata, whether cached in memory or cached otherwise as configured by the driver's caching settings, after the successful execution of the driver's stored procedures, which all affect the schema in HarperDB itself.
RowScanDepthThe maximum number of rows to scan when generating table metadata. Set this property to gain more control over how the provider detects data types.
TimeoutThe value in seconds until the timeout error is thrown, canceling the operation.
TypeDetectionSchemeComma-separated options for how the provider will scan the data to determine the fields and datatypes in each document collection.
UpperCaseIdentifiersThis property reports all identifiers in uppercase. This is the default for Oracle databases and thus allows better integration with Oracle tools such as the Oracle Database Gateway.
UserDefinedViewsA filepath pointing to the JSON configuration file containing your custom views.

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Build 22.0.8462