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TAG.EXISTS

Last updated 
TAG.EXISTS key tag
Group
Tags
Complexity
O(1)
Arity
3 (exactly, counting the command name)
Flags
read-only, fast
Keys
first 1, last 1, step 1
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TAG.EXISTS tells you whether tag is attached to key.

Return value

Section titled “Return value”
Case RESP2 RESP3
Key has the tag Integer 1 Integer 1
Key lacks the tag, or no such key Integer 0 Integer 0

Examples

Section titled “Examples”
127.0.0.1:6379> SET article:1 "..."
OK
127.0.0.1:6379> TAG.SET article:1 news
(integer) 1
127.0.0.1:6379> TAG.EXISTS article:1 news
(integer) 1
127.0.0.1:6379> TAG.EXISTS article:1 sports
(integer) 0

Compatibility

Section titled “Compatibility”

HotKV-only command.

See also

Section titled “See also”

TAG.GET, TAG.SET, TAG.COUNT