Re: Query optimization

[Rob Sargent <robjsargent@xxxxxxxxx>]

3) Output of EXPLAIN ANALYZE of query.

 Result  (cost=2.80..2.83 rows=1 width=1) (actual time=0.030..0.030 rows=1 loops=1)
   InitPlan 1 (returns $0)
     ->  Index Only Scan using idx_cachekeys on cachekeys  (cost=0.55..2.80 rows=1 width=0) (actual time=0.029..0.029 rows=1 loops=1)
           Index Cond: ((cachetype = 'BoMatrix'::text) AND (trsid = 'daznbetuk'::text) AND (brandid = 'daznbet'::text) AND (sportid = 'BOX'::text) AND (competitionid = 'U-1998'::text) AND (eventid = 'U-523596'::text))
           Heap Fetches: 0
 Planning Time: 0.221 ms
 Execution Time: 0.046 ms

And is the explain analyze output if from your original query:

"SELECT EXISTS (SELECT Key FROM CACHEKEYS WHERE CacheType = $1 AND TrsId = $2 AND BrandId = $3 AND SportId = $4 AND CompetitionId = $5 AND EventId = $6 AND MarketId = $7 LIMIT ?)”

Has there been any significant addition of rows recently? i.e. are the statistics up-to-date for that table?