Symptom
- Inaccurate outputs for the following SET OPTION SHOW subcommands when using the brief option:
set option show_best_plan brief
set option show_final_plan brief
set option show_lio_costing brief
set option show_elimination brief
set option show_parallel brief
- "show_best_plan brief" shows no information about Best Plan. It's only about Final Plan:
set option show_best_plan brief
select
substring(au_lname,1,15) "Last Name",
substring(au_fname,1,15) "First Name",
substring ( title ,1,40) "Title"
from
authors a ,titleauthor ta ,titles t
where
a.au_id = ta.au_id and
ta.title_id = t.title_id
order by a.au_lname
The best global plan (Pop tree) :
FINAL PLAN ( total cost = 217.5558 ):
lio=33 pio=2.999999 cpu=765.5587
( PopEmit ( PopSort ( PopMergeJoin ( PopSort ( PopMergeJoin ( PopSort ( PopTabScan titles t ) ) ( PopSort ( PopTabScan titleauthor ta ) ) ) ) ( PopSort ( PopTabScan authors a ) ) ) ) ) cost:217.5558 T(L33,P2.999999,C765.5587) order: {3}
- "show_final_plan brief" shows no information about Final Plan. it's about NO STATS:
set option show_final_plan brief
select
substring(au_lname,1,15) "Last Name",
substring(au_fname,1,15) "First Name",
substring ( title ,1,40) "Title"
from
authors a ,titleauthor ta ,titles t
where
a.au_id = ta.au_id and
ta.title_id = t.title_id
order by a.au_lname
NO STATS on column authors.au_id
NO STATS on column authors.au_lname
NO STATS on column titleauthor.title_id
NO STATS on column titleauthor.au_id
NO STATS on column titles.title_id
- "show_lio_costing brief" shows no information about show_lio_costing. It's about FINAL PLAN:
set option show_lio_costing brief
select
substring(au_lname,1,15) "Last Name",
substring(au_fname,1,15) "First Name",
substring ( title ,1,40) "Title"
from
authors a ,titleauthor ta ,titles t
where
a.au_id = ta.au_id and
ta.title_id = t.title_id
order by a.au_lname
The Cost Summary for best global plan:
FINAL PLAN ( total cost = 217.5558 ):
lio=33 pio=2.999999 cpu=765.5587
- "show_elimination brief" shows no information about partition elimination:
set option show_elimination brief
select
substring(au_lname,1,15) "Last Name",
substring(au_fname,1,15) "First Name",
substring ( title ,1,40) "Title"
from
authors a ,titleauthor ta ,titles t
where
a.au_id = ta.au_id and
ta.title_id = t.title_id
order by a.au_lname
Predicate(s) in OptBlock0 for elimination
START Dumping Predicate Set
END Dumping Predicate Set
Creating predicate intervals.......
printing the interval list.....
................done
- "show_parallel brief" shows no information about parallelism:
set option show_parallel brief
select
substring(au_lname,1,15) "Last Name",
substring(au_fname,1,15) "First Name",
substring ( title ,1,40) "Title"
from
authors a ,titleauthor ta ,titles t
where
a.au_id = ta.au_id and
ta.title_id = t.title_id
order by a.au_lname
Predicate(s) in OptBlock0 for elimination
START Dumping Predicate Set
END Dumping Predicate Set
Creating predicate intervals.......
printing the interval list.....
................done
Read more...
Environment
- SAP Adaptive Server Enterprise (ASE) 15.7
- SAP Adaptive Server Enterprise 16.0
Product
Keywords
CR806853, CR#806853, 806853 , KBA , BC-SYB-ASE , Sybase ASE Database Platform (non Business Suite) , Bug Filed
About this page
This is a preview of a SAP Knowledge Base Article. Click more to access the full version on SAP for Me (Login required).Search for additional results
Visit SAP Support Portal's SAP Notes and KBA Search.