F_JR029C: Value 'hvr_latency_data.latency_ren_hvr_prod()' of parameter /DbProc contains invalid character. Legal characters for database procedures are [A-Z][a-z][0-9][_#$.].
F_JR0340: The previous error occurred while validating the value of parameter /DbProc in action AgentPlugin /DbProc=hvr_latency_data.latency_ren_hvr_prod() in the definition of channel 'xhvr_latency', group 'TGT_RS' and table '*'.

Unfortunately it is not possible to create a DbProcedure in Amazon Redshift without the use of an open + close bracket -- ().

Here is the DB developer doc for database procedures in Amazon Redshift.

https://docs.aws.amazon.com/redshift/latest/dg/r_CREATE_PROCEDURE.html