mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-17 21:24:28 +00:00
d91c97d15d
* Replace underscores with hyphens * remove temporary code * fix style check * fix collapse
1023 B
1023 B
toc_priority | toc_title |
---|---|
36 | Comparison |
Comparison Functions
Comparison functions always return 0 or 1 (Uint8).
The following types can be compared:
- numbers
- strings and fixed strings
- dates
- dates with times
within each group, but not between different groups.
For example, you can’t compare a date with a string. You have to use a function to convert the string to a date, or vice versa.
Strings are compared by bytes. A shorter string is smaller than all strings that start with it and that contain at least one more character.