Rename ColumnSchemaBuilder::class to AbstractColumnSchemaBuilder::class.

src/ColumnSchemaBuilder.php

@@ -0,0 +1,11 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Yiisoft\Db\Pgsql;
+
+use Yiisoft\Db\Schema\AbstractColumnSchemaBuilder;
+
+final class ColumnSchemaBuilder extends AbstractColumnSchemaBuilder
+{
+}

src/DDLQueryBuilder.php

@@ -10,7 +10,7 @@
 use Yiisoft\Db\Exception\NotSupportedException;
 use Yiisoft\Db\QueryBuilder\AbstractDDLQueryBuilder;
 use Yiisoft\Db\QueryBuilder\QueryBuilderInterface;
-use Yiisoft\Db\Schema\ColumnSchemaBuilder;
+use Yiisoft\Db\Schema\ColumnSchemaBuilderInterface;
 use Yiisoft\Db\Schema\QuoterInterface;
 use Yiisoft\Db\Schema\SchemaInterface;
 
@@ -40,7 +40,7 @@ public function addDefaultValue(string $name, string $table, string $column, mix
         throw new NotSupportedException(__METHOD__ . ' is not supported by PostgreSQL.');
     }
 
-    public function alterColumn(string $table, string $column, ColumnSchemaBuilder|string $type): string
+    public function alterColumn(string $table, string $column, ColumnSchemaBuilderInterface|string $type): string
     {
         $columnName = $this->quoter->quoteColumnName($column);
         $tableName = $this->quoter->quoteTableName($table);

src/Schema.php

@@ -17,7 +17,7 @@
 use Yiisoft\Db\Exception\NotSupportedException;
 use Yiisoft\Db\Expression\Expression;
 use Yiisoft\Db\Schema\AbstractSchema;
-use Yiisoft\Db\Schema\ColumnSchemaBuilder;
+use Yiisoft\Db\Schema\ColumnSchemaBuilderInterface;
 use Yiisoft\Db\Schema\ColumnSchemaInterface;
 use Yiisoft\Db\Schema\TableSchemaInterface;
 
@@ -1040,20 +1040,10 @@ private function createColumnSchema(): ColumnSchema
         return new ColumnSchema();
     }
 
-    /**
-     * Create a column schema builder instance giving the type and value precision.
-     *
-     * This method may be overridden by child classes to create a DBMS-specific column schema builder.
-     *
-     * @param string $type type of the column. See {@see ColumnSchemaBuilder::$type}.
-     * @param array|int|string|null $length length or precision of the column. See {@see ColumnSchemaBuilder::$length}.
-     *
-     * @return ColumnSchemaBuilder column schema builder instance
-     *
-     * @psalm-param string[]|int[]|int|string|null $length
-     */
-    public function createColumnSchemaBuilder(string $type, int|string|array|null $length = null): ColumnSchemaBuilder
-    {
+    public function createColumnSchemaBuilder(
+        string $type,
+        int|string|array|null $length = null
+    ): ColumnSchemaBuilderInterface {
         return new ColumnSchemaBuilder($type, $length);
     }