BloomFilter check not showing up in MERGE statement queries

explain merge into acidTbl as t using nonAcidOrcTbl s ON t.a = s.a
WHEN MATCHED AND s.a > 8 THEN DELETE
WHEN MATCHED THEN UPDATE SET b = 7
WHEN NOT MATCHED THEN INSERT VALUES(s.a, s.b)

...

        Map 1
            Map Operator Tree:
                TableScan
                  alias: t
                  Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE
                  Filter Operator
                    predicate: a BETWEEN DynamicValue(RS_3_s_a_min) AND DynamicValue(RS_3_s_a_max) (type: boolean)
                    Statistics: Num rows: 1 Data size: 0 Basic stats: PARTIAL Column stats: NONE