Re: Never ending query
Posted in 1995
jparker@hpbs3645.boi.hp.com (Jack Parker) writes: >In talking with a cow-orker of mine it came to pass that he is having a >similar problem with 7.1 (I don't know HOW similar yet). Apparently when >doing a query against a view which involves a COUNT(*) and a GROUP BY, the >optimizer goes out to lunch for 15 minutes EXACTLY of CPU time. During this >time the entire engine is frozen to everything including sysadmin functions. >The turbo process is sitting there chewing up clock time, put nothing else is >going on. The sqexplain file is not written. Then 15 minutes goes by and >the query executes - quickly too. I pointed him at the OPTCOMIND or whatever >variable and he was just going off to try that when the problem (which has >evidently been around for a while) went away. >Is (was) he stirring the same pot? Doesn't sound like it. My problem involved 5.0 and no views, counts, or group bys. Even worse, my problem so far refuses to just go away... >cheers >j. >_____________________________________________________________________________ >Jack Parker - Hewlett Packard, DMD/IS Boise, Idaho, USA >jparker@hpbs3645.boi.hp.com >_____________________________________________________________________________ > Lysdexics Untie! >_____________________________________________________________________________ > Any opinions expressed herein are my own and not those of my employers. >_____________________________________________________________________________ -- --- - Derrek (dirk@xmission.com)