1.1.1

Table Of Contents
6.
Execute the EXPLAIN command with the following query:
explain select * from flights f, flightavailability fa where
f.flight_id=fa.flight_id and f.flight_id='AA1116';
You receive output similar to:
MEMBER_PLAN
--------------------------------------------------------------------------------------------------------------------------------
ORIGINATOR curwen(26762)<v1>:24929 BEGIN TIME 2013-06-14 14:36:37.17 END
TIME 2013-06-14 14:36:37.231
DISTRIBUTION to 1 members took 341 microseconds ( message sending
min/max/avg time 369/369/369 microseconds
and receiving min/max/avg time 278/278/278 microseconds )
SEQUENTIAL-ITERATION of 14 rows took 1963 microseconds
Slowest Member Plan:
member curwen(26758):2779 begin_execution 2013-06-14 14:36:37.173
end_execution 2013-06-14 14:36:37.223
QUERY-RECEIVE execute_time 50.542 ms member_node curwen(26762)<v1>:24929
RESULT-SEND execute_time 0.055 ms member_node curwen(26762)<v1>:24929
RESULT-HOLDER execute_time 3.001 ms returned_rows 14 no_opens 1
NLJOIN (2.32%) execute_time 0.428 ms returned_rows 14 no_opens 1
TABLESCAN (51.16%) execute_time 9.426 ms returned_rows 1 no_opens
1 scan_qualifiers Column[0][0] Id: FLIGHT_ID
Operator: = AA1116 Ordered nulls: false Unknown return value:
false scanned_object APP.FLIGHTS scan_type HEAP
ROWIDSCAN (1.11%) execute_time 0.206 ms returned_rows 14 no_opens
1 node_details FLIGHTAVAILABILITY :
CONSTRAINTSCAN (45.39%) execute_time 8.362 ms returned_rows 14
no_opens 1 scan_qualifiers None scanned_object
APP.6__FLIGHTAVAILABILITY__FLIGHT_ID__SEGMENT_NUMBER:base-table:APP.FLIGHTAVAILABILITY
scan_type
node_details WHERE : ((F.FLIGHT_ID = FA.FLIGHT_ID) and true)
Fastest Member Plan:
member curwen(26758):2779 begin_execution 2013-06-14 14:36:37.173
end_execution 2013-06-14 14:36:37.223
QUERY-RECEIVE execute_time 50.542 ms member_node curwen(26762)<v1>:24929
RESULT-SEND execute_time 0.055 ms member_node curwen(26762)<v1>:24929
RESULT-HOLDER execute_time 3.001 ms returned_rows 14 no_opens 1
NLJOIN (2.32%) execute_time 0.428 ms returned_rows 14 no_opens 1
TABLESCAN (51.16%) execute_time 9.426 ms returned_rows 1 no_opens
1 scan_qualifiers Column[0][0] Id: FLIGHT_ID
Operator: = AA1116 Ordered nulls: false Unknown return value:
false scanned_object APP.FLIGHTS scan_type HEAP
ROWIDSCAN (1.11%) execute_time 0.206 ms returned_rows 14 no_opens
273
Evaluating Query Plans and Query Statistics