diff --git a/tag.sh b/tag.sh
index 71a7291..2091403 100755
--- a/tag.sh
+++ b/tag.sh
@@ -13,6 +13,9 @@ set -ueo pipefail
 #   - tag $FILENAME $TAG - tag $FILENAME with $TAG, $TAG can be repeated
 #   - listtags $FILENAME - list all tags for $FILENAME
 
+# TODO: adjust sqlite_insert_multiple to allow defining columns per insert, currently it's hardcoded to 2
+# TODO: merge sqlite_insert_single and sqlite_insert_multiple probably as result of the above
+
 SCRIPT_DIR=$(dirname $(readlink "$0"))
 SCRIPT_NAME=$(basename "$0")