@@ -242,7 +242,14 @@ function update_database () {

             insert_col='file, variantof, '

             update_values=''

             for col in ${!data[@]}; do

-                test ${datatypes[$col]%% *} == 'text' && single_quote="'" || single_quote=""

+                if test ${datatypes[$col]%% *} = 'text'; then

+                    single_quote="'"

+                elif [[ ${datatypes[$col]%% *} = 'integer' && "${data[$col]// }" = +([0-9]) ]]; then

+                    single_quote=""

+                else

+                    unset datatypes[$col]

+                    continue

+                fi

                 insert_col+="\`$col\`, "

                 insert_values+="$single_quote${data[$col]//\'/\'\'}$single_quote, "

                 if test -n "${data[$col]}"; then