IdentityColumnsTableFeature

japila-books · Jan 11, 2025 · 7ee8420 · 7ee8420
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diff --git a/docs/check-constraints/CheckConstraintsTableFeature.md b/docs/check-constraints/CheckConstraintsTableFeature.md
@@ -0,0 +1,3 @@
+# CheckConstraintsTableFeature
+
+`CheckConstraintsTableFeature` is...FIXME
diff --git a/docs/column-invariants/Invariants.md b/docs/column-invariants/Invariants.md
@@ -1,3 +1,7 @@
+---
+title: Invariants
+---
+
 # Invariants Utility
 
 ## <span id="INVARIANTS_FIELD"><span id="delta.invariants"> delta.invariants

diff --git a/docs/column-invariants/InvariantsTableFeature.md b/docs/column-invariants/InvariantsTableFeature.md
@@ -0,0 +1,3 @@
+# InvariantsTableFeature
+
+`InvariantsTableFeature` is...FIXME
diff --git a/docs/column-mapping/ColumnMappingTableFeature.md b/docs/column-mapping/ColumnMappingTableFeature.md
@@ -0,0 +1,3 @@
+# ColumnMappingTableFeature
+
+`ColumnMappingTableFeature` is...FIXME
diff --git a/docs/generated-columns/GeneratedColumn.md b/docs/generated-columns/GeneratedColumn.md
@@ -1,3 +1,7 @@
+---
+title: GeneratedColumn
+---
+
 # GeneratedColumn Utility
 
 `GeneratedColumn` is a utility for [Generated Columns](index.md).

diff --git a/docs/generated-columns/GeneratedColumnsTableFeature.md b/docs/generated-columns/GeneratedColumnsTableFeature.md
@@ -0,0 +1,3 @@
+# GeneratedColumnsTableFeature
+
+`GeneratedColumnsTableFeature` is...FIXME
diff --git a/docs/identity-columns/IdentityColumnsTableFeature.md b/docs/identity-columns/IdentityColumnsTableFeature.md
@@ -0,0 +1,25 @@
+# IdentityColumnsTableFeature
+
+`IdentityColumnsTableFeature` is a [LegacyWriterFeature](../table-features/LegacyWriterFeature.md) with the following properties:
+
+Feature Property | Value
+-|-
+ [name](../table-features/LegacyWriterFeature.md#name) | `identityColumns`
+ [minWriterVersion](../table-features/LegacyWriterFeature.md#minWriterVersion) | 6
+
+`IdentityColumnsTableFeature` [can be enabled via table metadata](../table-features/FeatureAutomaticallyEnabledByMetadata.md).
+
+## metadataRequiresFeatureToBeEnabled { #metadataRequiresFeatureToBeEnabled }
+
+??? note "FeatureAutomaticallyEnabledByMetadata"
+
+    ```scala
+    metadataRequiresFeatureToBeEnabled(
+      protocol: Protocol,
+      metadata: Metadata,
+      spark: SparkSession): Boolean
+    ```
+
+    `metadataRequiresFeatureToBeEnabled` is part of the [FeatureAutomaticallyEnabledByMetadata](../table-features/FeatureAutomaticallyEnabledByMetadata.md#metadataRequiresFeatureToBeEnabled) abstraction.
+
+`metadataRequiresFeatureToBeEnabled` is enabled (`true`) when the [table schema](../Metadata.md#schema) (from the given [Metadata](../Metadata.md)) [has an identity column](../ColumnWithDefaultExprUtils.md#hasIdentityColumn).
diff --git a/docs/table-features/FeatureAutomaticallyEnabledByMetadata.md b/docs/table-features/FeatureAutomaticallyEnabledByMetadata.md
@@ -21,6 +21,7 @@ See:
 * [AppendOnlyTableFeature](../append-only-tables/AppendOnlyTableFeature.md#metadataRequiresFeatureToBeEnabled)
 * [ChangeDataFeedTableFeature](../change-data-feed/ChangeDataFeedTableFeature.md#metadataRequiresFeatureToBeEnabled)
 * [DeletionVectorsTableFeature](../deletion-vectors/DeletionVectorsTableFeature.md#metadataRequiresFeatureToBeEnabled)
+* [IdentityColumnsTableFeature](../identity-columns/IdentityColumnsTableFeature.md#metadataRequiresFeatureToBeEnabled)
 * [RowTrackingFeature](../row-tracking/RowTrackingFeature.md#metadataRequiresFeatureToBeEnabled)
 
 Used when:
@@ -31,12 +32,12 @@ Used when:
 
 * [AppendOnlyTableFeature](../append-only-tables/AppendOnlyTableFeature.md)
 * [ChangeDataFeedTableFeature](../change-data-feed/ChangeDataFeedTableFeature.md)
-* `CheckConstraintsTableFeature`
-* `ColumnMappingTableFeature`
+* [CheckConstraintsTableFeature](../check-constraints/CheckConstraintsTableFeature.md)
+* [ColumnMappingTableFeature](../column-mapping/ColumnMappingTableFeature.md)
 * [DeletionVectorsTableFeature](../deletion-vectors/DeletionVectorsTableFeature.md)
-* `GeneratedColumnsTableFeature`
+* [GeneratedColumnsTableFeature](../generated-columns/GeneratedColumnsTableFeature.md)
 * `IcebergCompatV1TableFeature`
-* `InvariantsTableFeature`
+* [InvariantsTableFeature](../column-invariants/InvariantsTableFeature.md)
 * [RowTrackingFeature](../row-tracking/RowTrackingFeature.md)
 * `TimestampNTZTableFeature`
 

diff --git a/docs/table-features/LegacyWriterFeature.md b/docs/table-features/LegacyWriterFeature.md
@@ -1,3 +1,11 @@
 # LegacyWriterFeature
 
-`LegacyWriterFeature` is...FIXME
+## Implementations
+
+* [AppendOnlyTableFeature](../append-only-tables/AppendOnlyTableFeature.md)
+* [ChangeDataFeedTableFeature](../change-data-feed/ChangeDataFeedTableFeature.md)
+* [CheckConstraintsTableFeature](../check-constraints/CheckConstraintsTableFeature.md)
+* [GeneratedColumnsTableFeature](../generated-columns/GeneratedColumnsTableFeature.md)
+* [IdentityColumnsTableFeature](../identity-columns/IdentityColumnsTableFeature.md)
+* [InvariantsTableFeature](../column-invariants/InvariantsTableFeature.md)
+* `LegacyReaderWriterFeature`
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		# CheckConstraintsTableFeature

		`CheckConstraintsTableFeature` is...FIXME
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		@@ -0,0 +1,3 @@
		# InvariantsTableFeature

		`InvariantsTableFeature` is...FIXME
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		@@ -0,0 +1,3 @@
		# ColumnMappingTableFeature

		`ColumnMappingTableFeature` is...FIXME
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		@@ -0,0 +1,3 @@
		# GeneratedColumnsTableFeature

		`GeneratedColumnsTableFeature` is...FIXME