[CBRD-25519] Add partition pruning information to SQL Trace

[youngjinj]

http://jira.cubrid.org/browse/CBRD-25519

Changes to the answers as follows:

1. Trace information for pruned partitions is output.

For example:

select /*+ recompile */
  count (*)
from
  ta_range a
where
  a.ca between 1 and 4;

-- AS-IS
    Trace Statistics:
      SELECT (time: 0, fetch: 11, fetch_time: 0, ioread: 0)
        SCAN (index: dba.ta_range.pk_ta_range_ca_cd), (btree time: 0, fetch: 5, ioread: 0, readkeys: 400, filteredkeys: 0, rows: 0, covered: true, count_only: true)

-- TO-BE
    Trace Statistics:
      SELECT (time: 0, fetch: 11, fetch_time: 0, ioread: 0)
        SCAN (index: dba.ta_range.pk_ta_range_ca_cd), (btree time: 0, fetch: 5, ioread: 0, readkeys: 400, filteredkeys: 0, rows: 0, covered: true, count_only: true)
(+)            PARTITION (index: dba.ta_range__p__p1.pk_ta_range_ca_cd), (btree time: 0, fetch: 1, ioread: 0, readkeys: 100, filteredkeys: 0, rows: 0, covered: true, count_only: true)
(+)            PARTITION (index: dba.ta_range__p__p2.pk_ta_range_ca_cd), (btree time: 0, fetch: 1, ioread: 0, readkeys: 100, filteredkeys: 0, rows: 0, covered: true, count_only: true)
(+)            PARTITION (index: dba.ta_range__p__p3.pk_ta_range_ca_cd), (btree time: 0, fetch: 1, ioread: 0, readkeys: 100, filteredkeys: 0, rows: 0, covered: true, count_only: true)
(+)            PARTITION (index: dba.ta_range__p__p4.pk_ta_range_ca_cd), (btree time: 0, fetch: 1, ioread: 0, readkeys: 100, filteredkeys: 0, rows: 0, covered: true, count_only: true)