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Status Future consideration
Created by Guest
Created on Sep 21, 2021

Generate a reorg for the history table when doing an add column on the base table (STT)

I’m going to add a column to two tables that are “connected” through versioning (STT).
This is what I (or the tool) should do:

ALTER TABLE MY.BASETAB ADD NEW_COLUMN DECIMAL(5, 3) NOT NULL;
REORG TABLESPACE MYDB.BASETS
REORG TABLESPACE MYDB.HISTTS

The tool only generates

ALTER TABLE MY.BASETAB ADD NEW_COLUMN DECIMAL(5, 3) NOT NULL;
REORG TABLESPACE MYDB.BASETS


This is how SYSIBM.SYSTABLES looks like before I start.
CREATOR TABLE TYPE V_SCHEMA V_TABLE
---------+---------+---------+---------+---------+
MY BASETAB T MY HISTTAB
MY HISTTAB H MY BASETAB

And this is what’s happens. (starts before compare)
NAME SCHEMA T DB NAME TS NAME COLS ROWS
------------------ -------- - -------- -------- ------ -----------
BASETAB MY T MYDB BASETS 15 3065
HISTTAB MY H MYDB HISTTS 15 406

-DIS DB(MYDB) SPACENAM(BASETS) LIMIT(*)
NAME TYPE PART STATUS
-------- ---- ----- ------
BASETS TS 0001 RW
-DIS DB(MYDB) SPACENAM(HISTTS) LIMIT(*)

NAME TYPE PART STATUS
-------- ---- ----- ------
HISTTS TS 0001 RW


2021-09-21 - DB2 ADMINISTRATION TOOL - SUMMARY REPORT FOR X010921A

TIME RET CODE ACTION OBJECT
======== ======== ======== ====================================================
11:01.06 0 ALTER TABLE MY.BASETAB ADD FORESLAGEN_MARG DECIMAL(5, 3) N
OT NULL
11:01.06 0 COPY LIST ADBLD0 FULL YES PARALLEL 0 SHRLEVEL CHANGE COPY
DDN(COPY1)
11:01.10 0 REORG TABLESPACE MYDB.BASETS PARALLEL (0) LOG NO SORTDATA
SHRLEVEL CHANGE DEADLINE CURRENT TIMESTAMP + 3 HOURS
DRAIN_WAIT 2 RETRY 10 RETRY_DELAY 1 MAXRO 2 DRAIN
ALL LONGLOG TERM DELAY 1 TIMEOUT TERM STATISTICS SO
RTDEVT SYSDA COPYDDN(COPY1) DISCARDDN(DISC) PUNCHDDN
(PUNCH) UNLDDN(UNL) WORKDDN(WORK1,WORK2)
11:01.12 0 REBIND PACKAGE(..............

This is how SYSIBM.SYSTABLES looks like after.
NAME SCHEMA T DB NAME TS NAME COLS
* * * * * *
------------------ -------- - -------- -------- ------
BASETAB MY T MYDB BASETS 16
HISTTAB MY H MYDB HISTTS 16


-DIS DB(MYDB) SPACENAM(BASETS) LIMIT(*)
NAME TYPE PART STATUS
-------- ---- ----- ------
BASETS TS 0001 RW

-DIS DB(MYDB) SPACENAM(HISTTS) LIMIT(*)
NAME TYPE PART STATUS
-------- ---- ----- ---------
HISTTS TS 0001 RW,AREO*

Needed By Quarter