Global index space reusing after defered index maintenance (SYS.PMO_DEFERRED_GIDX_MAINT_JOB)
Hello
I'm using Oracle DB (12.1.0.2 patch set update 160719) and in one schema I have a lot of partitioned tables (tables are partition by range with one partition per day). One of index on table (global, non-partitioned) is a primary key. Each night some script makes partitions maintenance - dropping old partitions (with "update indexes" option) and creating new partitions. Partitions maintenance lasts quite fast - becuase defered index maintenance is used (which is done by DBMS scheduler job SYS.PMO_DEFERRED_GIDX_MAINT_JOB). Everything works fine, but the problem is with size of global index. Currently all partitions size is 363MB, while index