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  3. May 2003

Performance and timestamp fileds

I'm at V5R2:

Executing a runqry with rcdslt(*yes) on a file with:

RECSTATE       1A
.....
DATEDOC         L
.....
MODIFIED        Z

if the record select is:

    RECSTATE  EQ  ' '
AND MODIFIED  GE  '2003-05-09-00.00.00.000000' 

it takes few seconds, if

    RECSTATE  EQ  ' '
AND DATADOC   LT  '31/13/02'
AND MODIFIED  GE  '2003-05-09-00.00.00.000000' 

it takes 7 minutes.

All the logical files exclude RECSTATE *NE ' '.
There is a logical with the key on DATADOC.
Other logicals don't use DATADOC.

Any idea?


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