Redis keys命令不适用于某些字符

Question

I can't figure out why certain redis KEYS commands are behaving like this.

This returns all keys starting with "string:term":

keys "tag:[term]*"

When I put a .js in (even escaping it), it returns all keys that contain .js - the second part of the "regex" I'm trying to include:

keys "tag:[term\.com]*"; 
keys "tag:[term.com]*";

For some background, the documentation implies regular expressions within square brackets:

h[ae]llo matches hello and hallo, but not hillo

Answer 1

The KEYS command does not use regular expressions but glob-style pattern matching (compatible with the basic Unix shells).

keys "tag:[term]*"

does return many more keys than "all keys starting with tag:term". It returns all keys starting with tag: plus a single character among [ 't', 'e', 'r', 'm' ].

To return all keys starting with tag:term, you need to use "tag:term*"

The documentation does not implies regular expressions, just glob-style patterns.