Rétrograder de SPIP 1.9.3 SVN vers SPIp 1.9.2c

<?php
	include_spip('base/serial');
	include_spip('base/auxiliaires');

	spip_query("UPDATE spip_documents SET fichier=concat('IMG/',fichier) WHERE fichier NOT REGEXP '(^IMG/|://)' ");
	spip_query("DROP TABLE spip_types_document");
	include_spip('base/create');
	creer_base();
	spip_query("ALTER spip_documents ADD id_type bigint(21) DEFAULT '0' NOT NULL");
	$res = spip_query("SELECT id_type,extension FROM spip_types_documents");
	while ($row = spip_fetch_array($res)){
		spip_query("UPDATE spip_documents SET id_type="._q($row['id_type'])." WHERE extension="._q($row['extension']));
	}
	spip_query("UPDATE spip_documents SET mode='vignette' WHERE mode='image'");
	
	foreach(array('spip_articles','spip_auteurs','spip_breves','spip_mots','spip_rubriques','spip_documents','spip_syndic','spip_forum','spip_signatures') as $t){
		spip_query("ALTER TABLE $t ADD idx ENUM('', '1', 'non', 'oui', 'idx') DEFAULT '' NOT NULL");
		spip_query("ALTER TABLE $t ADD INDEX (idx)");
	}
	include_spip('inc/meta');
	ecrire_meta('version_installee','1.927');
	ecrire_metas();
?>