Hi All,

I have a view that is a series of 4 'union all' selects. One, and 
sometimes 2, duplicate all but 1 row. So, instead of 250 rows being 
returned, 499 are.  If I issue the select independently I get the 
correct result. By rearranging the unions one select stopped 
duplicating (it became the first select).

I included a literal in the selects so I could clearly identify what was 
happening and did counts before and after to be sure I wasn't 
getting combinations from prior selects. I know I can use UNION 
rather then UNION ALL, but I don't want the performance hit of 
RBase trying to remove the dups (after it creates them????). I do 
this routinely and can't figure out what might be going on in this 
case.

Of course, I've made sacrifices to the DB Gods, bloodied the wall 
next to my desk with my forehead, cursed, cried, and laughed 
maniacally... all for not. Has anyone else experienced this (the 
duplicating 'union all sel', that is <g>)?

tia,

Ben Petersen

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