Comment 5 for bug 1005898

=== Range analyzer ===
lots.tsClosed IS NULL
(gdb) print found_records
  $59 = 243422
(gdb) p cost
  $58 = {io_count = 243423, avg_io_cost = 1, cpu_cost = 48684.410000000003, mem_cost = 0, import_cost = 0}

contractNumber='1478876'
(gdb) print found_records
  $60 = 28600
(gdb) p cost
  $61 = {io_count = 28601, avg_io_cost = 1, cpu_cost = 5720.0100000000002, mem_cost = 0, import_cost = 0}

As a result, we have:
(gdb) print read_time
  $62 = 34321.010000000002
(gdb) print best_records
  $63 = 28600

=== Index Merge
T@10 : | | | | | | | | | | | | info: ROR key scans (original): tsClosed,contractNumber
T@10 : | | | | | | | | | | | | info: ROR key scans (ordered): contractNumber,tsClosed

T@10 : | | | | | | | | | | | >ror_intersect_add
T@10 : | | | | | | | | | | | | info: Current out_rows= 2.13715e+06
T@10 : | | | | | | | | | | | | info: Adding scan on contractNumber
T@10 : | | | | | | | | | | | | info: is_cpk_scan: 0
T@10 : | | | | | | | | | | | | >ror_scan_selectivity
T@10 : | | | | | | | | | | | | | info: sel_arg step
T@10 : | | | | | | | | | | | | | info: Selectivity multiplier: 0.0133823
T@10 : | | | | | | | | | | | | | info: Returning multiplier: 0.0133823
T@10 : | | | | | | | | | | | | <ror_scan_selectivity
(gdb) p intersect->out_rows
  $69 = 28600
(gdb) p intersect->index_records
  $70 = 28600
(gdb) p intersect->index_scan_costs
  $71 = 602.50860420650099
(gdb) p intersect->total_cost
  $72 = 17919.86261827108

T@10 : | | | | | | | | | | | >ror_intersect_add
T@10 : | | | | | | | | | | | | info: Current out_rows= 28600
T@10 : | | | | | | | | | | | | info: Adding scan on tsClosed
T@10 : | | | | | | | | | | | | info: is_cpk_scan: 0
T@10 : | | | | | | | | | | | | >ror_scan_selectivity
T@10 : | | | | | | | | | | | | | info: sel_arg step
T@10 : | | | | | | | | | | | | | info: Selectivity multiplier: 0.1139
T@10 : | | | | | | | | | | | | | info: Returning multiplier: 0.1139
T@10 : | | | | | | | | | | | | <ror_scan_selectivity
T@10 : | | | | | | | | | | | | info: ROR-intersect is covering now
(gdb) p intersect->out_rows
  $73 = 3257.5451816248915
(gdb) p intersect->index_records
  $74 = 272022
(gdb) p intersect->index_scan_costs
  $75 = 5723.2619502868065
(gdb) p intersect->total_cost
  $76 = 5723.2619502868065