Merge pull request #5 from mattn/kindtimeidx

add kindtimeidx

sqlite3/init.go

@@ -30,6 +30,7 @@ var ddls = []string{
 	`CREATE INDEX IF NOT EXISTS pubkeyprefix ON event(pubkey)`,
 	`CREATE INDEX IF NOT EXISTS timeidx ON event(created_at DESC)`,
 	`CREATE INDEX IF NOT EXISTS kindidx ON event(kind)`,
+	`CREATE INDEX IF NOT EXISTS kindtimeidx ON event(kind,created_at DESC)`,
 }
 
 func (b *SQLite3Backend) Init() error {