i am using version 8.0.3<br /><br /> if you run the following query:<br /><br /> select count(*) from T1 where
(T1.a>10and T1.a<20) or (T1.a>90 and T1.a<100)<br /><br /> the set_baserel_size_estimate will accurately
estimatethe selectivity on T1.<br /><br /> However, if you run<br /><br /> select count(*) from T1, T2 where T1.b=T2.c
and (T1.a>10 and T1.a<20) or (T1.a>90 and T1.a<100)<br /><br /> the selectivity estimate on T1 is always
1.0 the reason is the re-l->baserestrictinfo is NULL for the second query in set_baserel_size_estimates().<br
/><br/> is this a bug?<br /> <br />
