Returns information about the existence of the scripts in the script cache.
This command accepts one or more SHA1 digests and returns a list of ones or zeros to signal if the scripts are already defined or not inside the script cache. This can be useful before a pipelining operation to ensure that scripts are loaded (and if not, to load them using SCRIPT LOAD
) so that the pipelining operation can be performed solely using EVALSHA
instead of EVAL
to save bandwidth.
Please refer to the EVAL
documentation for detailed information about Redis Lua scripting.
@return
@array-reply The command returns an array of integers that correspond to the specified SHA1 digest arguments. For every corresponding SHA1 digest of a script that actually exists in the script cache, an 1 is returned, otherwise 0 is returned.