| .. 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. |
| |
| ================================= |
| ADBC: Arrow Database Connectivity |
| ================================= |
| |
| Full Documentation on ADBC can be found at https://arrow.apache.org/adbc/. |
| |
| ADBC is: |
| |
| - A set of abstract APIs in different languages (C/C++, Go, and Java, with |
| more on the way) for working with databases and Arrow data. |
| |
| For example, result sets of queries in ADBC are all returned as streams of |
| Arrow data, not row-by-row. |
| - A set of implementations of that API in different languages (C/C++, C#/.NET, |
| Go, Java, Python, and Ruby) that target different databases |
| (e.g. PostgreSQL, SQLite, any database supporting Flight SQL). |
| |
| See the :external+adbc:doc:`ADBC Specification <format/specification>` for |
| details. |
| |
| The ADBC specification is currently at version 1.1.0. |
| |
| Updating this specification |
| =========================== |
| |
| ADBC is versioned separately from the core Arrow project. The API |
| standard and components (driver manager, drivers) are also versioned |
| separately, but both follow semantic versioning. |
| |
| For example: components may make backwards-compatible releases as |
| 1.0.0, 1.0.1, 1.1.0, 1.2.0, etc. They may release |
| backwards-incompatible versions such as 2.0.0, but which still |
| implement the API standard version 1.0.0. |
| |
| Similarly, this documentation describes the ADBC API standard version |
| 1.1.0. If/when an ABI-compatible revision is made |
| (e.g. new standard options are defined), the next version would be |
| 1.2.0. If incompatible changes are made (e.g. new API functions), the |
| next version would be 2.0.0. |