SchemaChangeBuilder.php
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SchemaChangeBuilder.php
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	<?php

	namespace Wikimedia\Rdbms;

	/**
	* Interface SchemaChangeBuilder that gets a definition and produces ALTER TABLE SQL based on RDBMS
	*
	* @experimental
	* @unstable
	*/
	interface SchemaChangeBuilder {

	/**
	* An example of $schema value:
	* [
	* 'comment' => 'Adding foo field',
	* 'before' => <Before snapshot of the abstract schema>
	* 'after' => <After snapshot of the abstract schema>
	* ],
	* @param array $schemaChangeSpec
	* @return string[]
	*/
	public function getSchemaChangeSql( array $schemaChangeSpec ): array;
	}