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IDS Forum

Re: Where records the fragment table's partnum ?!

Posted By: John Miller iii
Date: Thursday, 28 August 2008, at 10:04 p.m.

In Response To: Re: Where records the fragment table's partnum ?! (MARS CHEN)

For fragmented tables the partnum of systables entry is 0 and the
information
about each fragment is stored in sysfragments.
At the disk level the parent partition number will be stored in pn_lock=
id
field in the
partition structure. look at oncheck -pt dbs:table
John F. Miller III
STSM, Support Architect
miller3@us.ibm.com
503-578-5645
IBM Informix Dynamic Server (IDS)
=
"MARS CHEN" =
<mars@jsun.com> =
Sent by: =
To
ids-bounces@iiug. ids@iiug.org =
org =
cc
=
Subj=
ect
08/28/2008 06:32 Re: Where records the fragment =
PM table's partnum ?! [13249] =
=
=
Please respond to =
ids@iiug.org =
=
=
Thank you Mike !!!
>In dbspace #2 you have a partition page whose logical address is 0x200=
2f4
>In dbspace #3 you have a partition page whose logical address is 0x300=
002
>In dbspace #4 you have a partition page whose logical address is 0x400=
002
>oncheck -pp 0x200001 0x2f4
>oncheck -pp 0x300001 0x2
>oncheck -pp 0x400001 0x2
and you are right !!... each oncheck -pp would showes each partnum
in the first 4 bytes of slot 1 ....
What I am curious to know is that ... Why IDS knows nologtest:stkhis
is a fragment table ?!... there should be some flag describe it ~~
in my case , I create fragment table stkhis in dbspace1 and dbspace2 ,
and then create index in dbspace3 , so I'll have 3 partition pages
for table nologtest:stkhis , that is what I know , What I don't know is=
where record that this table is fragmented ?! and create index in anoth=
er
dbspace , there should be a structure describe this ~~~
thanks for your kind response , Mike ..It is nice of you ~~
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Messages In This Thread

Where records the fragment table's partnum ?!
MARS CHEN -- Wednesday, 27 August 2008, at 11:57 p.m.
- Re: Where records the fragment table's partnum ?!
  MIKE MAGIE -- Thursday, 28 August 2008, at 9:24 a.m.
  - Re: Where records the fragment table's partnum ?!
    MARS CHEN -- Thursday, 28 August 2008, at 9:32 p.m.
    - Re: Where records the fragment table's partnum ?!
      John Miller iii -- Thursday, 28 August 2008, at 10:04 p.m.
      - Re: Where records the fragment table's partnum ?!
        MARS CHEN -- Thursday, 28 August 2008, at 11:01 p.m.
    - Re: Where records the fragment table's partnum ?!
      Art Kagel -- Thursday, 28 August 2008, at 11:10 p.m.
      - Re: Where records the fragment table's partnum ?!
        MIKE MAGIE -- Friday, 29 August 2008, at 1:51 p.m.

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