Why use CASCADE=>'TRUE' for DBMS_STATS.GATHER_SCHEMA_STATS('HR') ?

hi,

Why use CASCADE=>'TRUE' when using

exec DBMS_STATS.GATHER_SCHEMA_STATS('HR') 

the above will gather the statistics of all objects under HR schema, including indexes that belong to HR schema.

So below CASCADE=>TRUE is pointless, unless I have indexes in a different schema I guess (?)

exec DBMS_STATS.GATHER_SCHEMA_STATS('HR', CASCADE => TRUE)

Link to documentation where I read this

https://docs.oracle.com/en/database/oracle/oracle-database/19/arpls/DBMS_STATS.html#GUID-3B3AE30F-1A34-4BFE-A326-15048F7E904F

in documentation see

GATHER_SCHEMA_STATS Procedures description

This procedure gathers statistics