Hi,
I've got performance problem and while I'dont ready to describe it
I'd like to ask about strange explain:
tour=# explain analyze select * from tours where ( operator_id in (2,3,4,5,7) and type_id = 2 ) or
( operator_id = 8 and type_id=4 );
NOTICE: QUERY PLAN:
Index Scan using type_idx, type_idx, type_idx, type_idx, type_idx, type_idx on tours (cost=0.00..12.25 rows=1
width=1091)(actual time=0.26..0.26 rows=0 loops=1)
Total runtime: 0.45 msec
EXPLAIN
What does many 'type_idx' means ?
Theare are 2 indices - operator_idx and type_idx.
Regards, Oleg
_____________________________________________________________
Oleg Bartunov, sci.researcher, hostmaster of AstroNet,
Sternberg Astronomical Institute, Moscow University (Russia)
Internet: oleg@sai.msu.su, http://www.sai.msu.su/~megera/
phone: +007(095)939-16-83, +007(095)939-23-83
