[8.x] Update ColumnDefinition docblock (#37111)

* Update ColumnDefinition docblock

* Add startingValue definition

* formatting

Author: Danil42Russia

Schema/ColumnDefinition.php

@@ -11,7 +11,7 @@
  * @method $this change() Change the column
  * @method $this charset(string $charset) Specify a character set for the column (MySQL)
  * @method $this collation(string $collation) Specify a collation for the column (MySQL/PostgreSQL/SQL Server)
- * @method $this comment(string $comment) Add a comment to the column (MySQL)
+ * @method $this comment(string $comment) Add a comment to the column (MySQL/PostgreSQL)
  * @method $this default(mixed $value) Specify a "default" value for the column
  * @method $this first() Place the column "first" in the table (MySQL)
  * @method $this generatedAs(string|Expression $expression = null) Create a SQL compliant identity column (PostgreSQL)
@@ -20,13 +20,14 @@
  * @method $this persisted() Mark the computed generated column as persistent (SQL Server)
  * @method $this primary() Add a primary index
  * @method $this spatialIndex() Add a spatial index
- * @method $this storedAs(string $expression) Create a stored generated column (MySQL/SQLite)
+ * @method $this startingValue(int $startingValue) Set the starting value of an auto-incrementing field (MySQL/PostgreSQL)
+ * @method $this storedAs(string $expression) Create a stored generated column (MySQL/PostgreSQL/SQLite)
  * @method $this type(string $type) Specify a type for the column
  * @method $this unique(string $indexName = null) Add a unique index
  * @method $this unsigned() Set the INTEGER column as UNSIGNED (MySQL)
  * @method $this useCurrent() Set the TIMESTAMP column to use CURRENT_TIMESTAMP as default value
  * @method $this useCurrentOnUpdate() Set the TIMESTAMP column to use CURRENT_TIMESTAMP when updating (MySQL)
- * @method $this virtualAs(string $expression) Create a virtual generated column (MySQL/SQLite)
+ * @method $this virtualAs(string $expression) Create a virtual generated column (MySQL/PostgreSQL/SQLite)
  */
 class ColumnDefinition extends Fluent
 {