STATUS of EXPLAIN Development
Ruslan Zasukhin
sunshine at public.kherson.ua
Mon May 8 14:56:54 CDT 2006
Hi All,
Just want to inform how far I was able go with EXPLAIN
Now it looks like this.
Something wrong yet with JOIN info...
----------------------------------------------
FOR SQL QUERY [] TIME = 1776 :
DO SELECT : TIME = 1776 : ROWS = 9
DO SIMPLE SELECT : TIME = 1776 : ROWS = 9
DO Single Table Without GROUP BY : TIME = 1776 : ROWS = 9
DO Build JoinTable : TIME = 1776 : ROWS = 9
DO For each Table from 7 resolve its WHERE conditions :
TIME = 1 :
FOR Table [birdrecords] DO SelectAllRecords : TIME
= 0 : ROWS = 32268
FOR Table [locations] DO SelectAllRecords : TIME =
0 : ROWS = 1263
FOR Table [species] DO SelectAllRecords : TIME = 0
: ROWS = 1011
FOR Table [geozones] DO SelectAllRecords : TIME = 0
: ROWS = 8
FOR Table [statetable] DO resolve WHERE statement :
TIME = 1 : ROWS = 1
FOR Field [state] DO FindValue(NC) : TIME = 1 :
ROWS = 1
FOR Table [speciesforms] DO SelectAllRecords : TIME
= 0 : ROWS = 37
FOR Table [sourcetable] DO SelectAllRecords : TIME
= 0 : ROWS = 9
DO JOIN of 2 Tables : TIME = 402 : ROWS = 24112
--
Best regards,
Ruslan Zasukhin
VP Engineering and New Technology
Paradigma Software, Inc
Valentina - Joining Worlds of Information
http://www.paradigmasoft.com
[I feel the need: the need for speed]
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