 
         if from < 6 && to >= 6 {
             if !self.run(db, queries: [
-                ("DROP INDEX IF EXISTS \(IndexVisitsSiteIDDate)", nil),
-                ("CREATE INDEX IF NOT EXISTS \(IndexVisitsSiteIDIsLocalDate) ON \(TableVisits) (siteID, is_local, date)", nil)
+                "DROP INDEX IF EXISTS \(IndexVisitsSiteIDDate)",
+                "CREATE INDEX IF NOT EXISTS \(IndexVisitsSiteIDIsLocalDate) ON \(TableVisits) (siteID, is_local, date)",
             ]) {
                 return false
             }
         }
 
         if from < 7 && to >= 7 {
-            let queries: [(String?, Args?)] = [
-                (getDomainsTableCreationString(forVersion: to), nil),
-                ("ALTER TABLE \(TableHistory) ADD COLUMN domain_id INTEGER REFERENCES \(TableDomains)(id) ON DELETE CASCADE", nil)
+            let queries: [String?] = [
+                getDomainsTableCreationString(forVersion: to),
+                "ALTER TABLE \(TableHistory) ADD COLUMN domain_id INTEGER REFERENCES \(TableDomains)(id) ON DELETE CASCADE",
             ]
 
             if !self.runValidQueries(db, queries: queries) {

        }

        if from < 5 && to >= 5  {
            let queries: [(String?, Args?)] = [(getQueueTableCreationString(forVersion: to), nil)]
            if !self.runValidQueries(db, queries: queries) {
                return false
            }

        let indexStructureParentIdx = "CREATE INDEX IF NOT EXISTS \(IndexBookmarksMirrorStructureParentIdx) " +
            "ON \(TableBookmarksMirrorStructure) (parent, idx)"

        let queries: [String?] = [
            getDomainsTableCreationString(forVersion: version),
            getHistoryTableCreationString(forVersion: version),
            favicons,
            visits,
            bookmarks,
            bookmarksMirror,
            bookmarksMirrorStructure,
            indexStructureParentIdx,
            faviconSites,
            indexShouldUpload,
            indexSiteIDDate,
            widestFavicons,
            historyIDsWithIcon,
            iconForURL,
            getQueueTableCreationString(forVersion: version),
            getTopSitesTableCreationString(forVersion: version),
        ]

        assert(queries.count == AllTablesIndicesAndViews.count, "Did you forget to add your table, index, or view to the list?")
