SupportsAtomicPartitionManagement

docs/connector/SupportsAtomicPartitionManagement.md

@@ -1,3 +1,28 @@
 # SupportsAtomicPartitionManagement
 
-`SupportsAtomicPartitionManagement` is...FIXME
+`SupportsAtomicPartitionManagement` is an [extension](#contract) of the [SupportsPartitionManagement](SupportsPartitionManagement.md) abstraction for partitioned tables.
+
+## Contract
+
+### <span id="createPartitions"> createPartitions
+
+```java
+void createPartitions(
+  InternalRow[] idents,
+  Map<String, String>[] properties)
+```
+
+Used when:
+
+* `AlterTableAddPartitionExec` physical operator is executed
+
+### <span id="dropPartitions"> dropPartitions
+
+```java
+boolean dropPartitions(
+  InternalRow[] idents)
+```
+
+Used when:
+
+* `AlterTableDropPartitionExec` physical operator is executed