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IDS Forum

output of oncheck -PT, about table size

Posted By: FRANK
Date: Wednesday, 18 January 2012, at 6:42 p.m.

Folks,

IDS11.FC8 , Redhat Linux.

I attached the table definition and the output of oncheck -PT. The table
has about 170,000 rows.

You can see,

BLspace Usage Report for noaa:fqu.my_gran_details_np

Type Pages Empty Semi-Full Full Very-Full

---------------- ---------- ---------- ---------- ---------- ----------

Free 8809

Bit-Map 179

Index 0

Data (Home) 77255

Data (Remainder) 0 0 0 0 0

TBLspace BLOBs 634653 0 0 264309 370344

----------

Total Pages 720896

The question is, how many data pages the table really used?

"Data (Home)" line should be the reasonable size, 77255 pages , but

"TBLspace BLOBs" line, 634653 pages , is what? used or just assigned
and not really used?

Thanks,
Frank

create table "fqu".my_gran_details_np
(

sub_inventory_id integer not null ,

inventory_id integer not null ,

npoess_doc_ref LIST(varchar(255) not null),

quality_sum_name LIST(varchar(255) not null),

quality_sum_value LIST(varchar(255) not null),

geo_lat LIST(decimal(10,5) not null),

geo_lon LIST(decimal(10,5) not null),

anc_filename LIST(varchar(255) not null),

aux_filename LIST(varchar(255) not null),

primary key (sub_inventory_id) constraint "fqu".my_gran_details_np_pk
) extent size 4096 next size 4096 lock mode row;

revoke all on "fqu".my_gran_details_np from "public" as "fqu";

alter table "fqu".my_gran_details_np add constraint (foreign

key (inventory_id) references "informix".ds_np_agg constraint

"informix".my_gran_details_np_fk);
alter table "fqu".my_gran_details_np add constraint (foreign

key (sub_inventory_id) references "informix".ds_np_gran constraint

"informix".my_gran_details_np_fk1);

[fqu@franklin npp_revamp]$ oncheck -pT noaa:my_gran_details_np

TBLspace Report for noaa:fqu.my_gran_details_np

Physical Address 19:2217503

Creation date 01/17/2012 23:32:57

TBLspace Flags d02 Row Locking

TBLspace contains VARCHARS

TBLspace contains TBLspace
BLOBs

TBLspace use 4 bit bit-maps

Maximum row size 2030

Number of special columns 14

Number of keys 0

Number of extents 6

Current serial value 1

Current SERIAL8 value 1

Current BIGSERIAL value 1

Current REFID value 1

Pagesize (k) 2

First extent size 2048

Next extent size 65536

Number of pages allocated 720896

Number of pages used 719333

Number of data pages 77255

Number of rows 172277

Partition partnum 12583879

Partition lockid 12583879

Extents

Logical Page Physical Page Size Physical Pages

0 19:4499406 2048 2048

2048 19:4496462 2048 2048

4096 19:4501454 290816 290816

294912 19:4792478 98304 98304

393216 19:4890990 65536 65536

458752 20:3 262144 262144

TBLspace Usage Report for noaa:fqu.my_gran_details_np

Type Pages Empty Semi-Full Full Very-Full

---------------- ---------- ---------- ---------- ---------- ----------

Free 8809

Bit-Map 179

Index 0

Data (Home) 77255

Data (Remainder) 0 0 0 0 0

TBLspace BLOBs 634653 0 0 264309 370344

----------

Total Pages 720896

Unused Space Summary

Unused data bytes in Home pages 57865032

Unused data bytes in Remainder pages 0

Unused bytes in TBLspace Blob pages 195999620

Home Data Page Version Summary

Version Count

0 (current) 77255

Index 807_2338 fragment partition dbdata00 in DBspace
dbdata00

Physical Address 19:2217504

Creation date 01/17/2012 23:32:57

TBLspace Flags 802 Row Locking

TBLspace use 4 bit bit-maps

Maximum row size 2030

Number of special columns 0

Number of keys 1

Number of extents 10

Current serial value 1

Current SERIAL8 value 1

Current BIGSERIAL value 1

Current REFID value 1

Pagesize (k) 2

First extent size 13

Next extent size 208

Number of pages allocated 1443

Number of pages used 1277

Number of data pages 0

Number of rows 0

Partition partnum 12583880

Partition lockid 12583879

Extents

Logical Page Physical Page Size Physical Pages

0 19:1417168 13 13

13 19:1417072 26 26

39 19:1430209 52 52

91 19:1439075 104 104

195 19:4498510 208 208

403 19:4498878 208 208

611 19:4792270 208 208

819 19:4890782 208 208

1027 19:4956686 208 208

1235 19:4957054 208 208

TBLspace Usage Report for noaa:fqu.my_gran_details_np

Type Pages Empty Semi-Full Full Very-Full

---------------- ---------- ---------- ---------- ---------- ----------

Free 306

Bit-Map 1

Index 1136

Data (Home) 0

Data (Remainder) 0 0 0 0 0

----------

Total Pages 1443

Unused Space Summary

Unused data slots 0

Unused data bytes in Remainder pages 0

Home Data Page Version Summary

Version Count

0 (current) 0

Index Usage Report for index 807_2338 on noaa:fqu.my_gran_details_np

Average Average

Level Total No. Keys Free Bytes

----- -------- -------- ----------

1 1 15 1844

2 15 74 1124

3 1120 153 20

----- -------- -------- ----------

Total 1136 152 36

Index 807_2341 fragment partition dbdata00 in DBspace
dbdata00

Physical Address 19:2217505

Creation date 01/17/2012 23:33:46

TBLspace Flags 802 Row Locking

TBLspace use 4 bit bit-maps

Maximum row size 2030

Number of special columns 0

Number of keys 1

Number of extents 9

Current serial value 1

Current SERIAL8 value 1

Current BIGSERIAL value 1

Current REFID value 1

Pagesize (k) 2

First extent size 10

Next extent size 160

Number of pages allocated 1120

Number of pages used 977

Number of data pages 0

Number of rows 0

Partition partnum 12583881

Partition lockid 12583879

Extents

Logical Page Physical Page Size Physical Pages

0 19:1184674 10 10

10 19:1417616 30 30

40 19:1425023 40 40

80 19:1430695 80 80

160 19:4498718 160 160

320 19:4499086 320 320

640 19:4956526 160 160

800 19:4956894 160 160

960 19:4957262 160 160

TBLspace Usage Report for noaa:fqu.my_gran_details_np

Type Pages Empty Semi-Full Full Very-Full

---------------- ---------- ---------- ---------- ---------- ----------

Free 257

Bit-Map 1

Index 862

Data (Home) 0

Data (Remainder) 0 0 0 0 0

----------

Total Pages 1120

Unused Space Summary

Unused data slots 0

Unused data bytes in Remainder pages 0

Home Data Page Version Summary

Version Count

0 (current) 0

Index Usage Report for index 807_2341 on noaa:fqu.my_gran_details_np

Average Average

Level Total No. Keys Free Bytes

----- -------- -------- ----------

1 1 11 1892

2 11 77 1093

3 850 202 464

----- -------- -------- ----------

Total 862 200 474

[fqu@franklin npp_revamp]$

--f46d0444e9f17bf27004b6d60170

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