Hello all, Need an explanation for this:
I did the following - SELECT DISTINCT COLUMN1 FROM TBL_XXX ; I got the foll result ---------------------------------------------------------------------------- 1 2 3 4 5 7 8 10 11 12 13 14 16 17 18 19 20 21 23 24 25 26 27 28 29 30 -------------------------------------------------------------------------- Totally 26 rows Now when I saw the Cardinality of this col ( COLUMN1 ) by doing a SHOW INDEX on TBL_XXX, It shows 93. How can this be possible, as Cardinality should be the number of distinct values ( 26 in this case ) for that column right? I also did an ANALYZE TABLE on TBL_XXX. The result is still the same. Thanks, Ratheesh Bhat K J