CurtHagenlocher commented on code in PR #2672: URL: https://github.com/apache/arrow-adbc/pull/2672#discussion_r2034035344
########## csharp/src/Drivers/Databricks/readme.md: ########## @@ -0,0 +1,56 @@ +<!-- + + Licensed to the Apache Software Foundation (ASF) under one or more + contributor license agreements. See the NOTICE file distributed with + this work for additional information regarding copyright ownership. + The ASF licenses this file to You under the Apache License, Version 2.0 + (the "License"); you may not use this file except in compliance with + the License. You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + +--> + +# Databricks + +The Databricks ADBC driver is built on top of the Spark ADBC driver and inherits many of it's [properties](../Apache/Spark/readme.md). + +The Databricks ADBC driver supports token-based authentiation using the +[Databricks personal access token](https://docs.databricks.com/en/dev-tools/auth/pat.html). +Basic (username and password) authenication is not supported, at this time. + +## Data Types + +The following table depicts how the Databricks ADBC driver converts a Databricks type to an Arrow type and a .NET type: + + +| Spark Type | Arrow Type | C# Type | +| :--- | :---: | :---: | +| ARRAY* | String | string | +| BIGINT | Int64 | long | +| BINARY | Binary | byte[] | +| BOOLEAN | Boolean | bool | +| CHAR | String | string | +| DATE | Date32 | DateTime | +| DECIMAL | Decimal128 | SqlDecimal | +| DOUBLE | Double | double | +| FLOAT | Float | float | +| INT | Int32 | int | +| INTERVAL_DAY_TIME+ | String | string | +| INTERVAL_YEAR_MONTH+ | String | string | +| MAP* | String | string | +| NULL | Null | null | +| SMALLINT | Int16 | short | +| STRING | String | string | +| STRUCT* | String | string | +| TIMESTAMP | Timestamp | DateTimeOffset | +| TINYINT | Int8 | sbyte | +| UNION | String | string | Review Comment: I think this probably comes from either the set of Arrow types or the `TTypeId` enum in the Thrift file. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
