示例:查看查询执行计划
*************************** 1. row ***************************
Query Plan: ========================================================
|ID|OPERATOR |NAME |EST. ROWS|COST |
--------------------------------------------------------
|0 |SCALAR GROUP BY | |1 |600337|
|1 | PX COORDINATOR | |1 |485729|
|2 | EXCHANGE OUT DISTR |:EX10000|1 |485729|
|4 | PX PARTITION ITERATOR| |600000 |371122|
|5 | TABLE SCAN |stok |600000 |371122|
========================================================
Outputs & filters:
-------------------------------------
0 - output([T_FUN_COUNT_SUM(T_FUN_COUNT(*))]), filter(nil),
1 - output([T_FUN_COUNT(*)]), filter(nil)
2 - output([T_FUN_COUNT(*)]), filter(nil), dop=1
3 - output([T_FUN_COUNT(*)]), filter(nil),
group(nil), agg_func([T_FUN_COUNT(*)])
4 - output([stok.s_i_id]), filter(nil)
5 - output([stok.s_i_id]), filter(nil),
access([stok.s_i_id]), partitions(p[0-5])