title: Number Key Type
role: manual
tags: #manual #meta #reference #zettel #zettelstore
syntax: zmk
back: 00001006030000 00001012931200
backward: 00001006030000 00001012931200
box-number: 1
copyright: (c) 2020-present by Detlef Stern <ds@zettelstore.de>
created: 20210212135017
forward: 00001007705000 00001007706000
lang: en
license: EUPL-1.2-or-later
modified: 20230612183900
published: 20230612183900
visibility: public

Values of this type denote a numeric integer value.
=== Allowed values
Must be a sequence of digits (""0""–""9""), optionally prefixed with a ""-"" or a ""+"" character.
=== Query comparison
[[Search operators|00001007705000]] for equality (""equal"" or ""not equal"", ""has"" or ""not has""), for lesser values (""less"" or ""not less""), or for greater values (""greater"" or ""not greater"") are executed by converting both the [[search value|00001007706000]] and the metadata value into integer values and then comparing them numerically.
Integer values must be in the range -9223372036854775808 … 9223372036854775807.
Comparisons with metadata values outside this range always returns a negative match.
Comparisons with search values outside this range will be executed as a comparison of the string representation values.

All other comparisons (""match"", ""not match"", ""prefix"", ""not prefix"", ""suffix"", and ""not suffix"") are done on the given string representation of the number.
In this case, the number ""+12"" will be treated as different to the number ""12"".
=== Sorting
Sorting is done by comparing the numeric values.