RE: analyze after adding a nullable column
- From: genegurevich@xxxxxxxxxxxx
- To: alvaro.fernandez@xxxxxxxxx, "oracle-l" <oracle-l@xxxxxxxxxxxxx>
- Date: Mon, 29 Oct 2007 17:05:06 -0500
Alvaro,
No, currently the new columns is not used anywhere . The number of rows in
the tables is in hundred of millions.
The new columns is char(1) and the row length will increase only marginally
(all tables a pretty wide)
thank you
Gene Gurevich
"Alvaro Jose
Fernandez"
<alvaro.fernandez To
@sivsa.com> <genegurevich@xxxxxxxxxxxx>,
Sent by: "oracle-l" <oracle-l@xxxxxxxxxxxxx>
oracle-l-bounce@f cc
reelists.org
Subject
RE: analyze after adding a nullable
10/04/2007 03:10 column
PM
Please respond to
alvaro.fernandez@
sivsa.com
Hi Gene,
It depends on the datatype and length, if you add a CHAR (not an
VARCHAR) or some other fixed length types (size), and depending also of
the number of rows in the table, the plans would be need to be
reevaluated, if the average row length got significantly higher (mainly
for recosting FTS)
I'm assuming you are not yet using the new column as filter predicate in
the queries, am I right?
alvaro
Hi everybody:
Do I need to reanalyze the table if I add a nullable column and do not
populate it with values (oracle 10.2.0.3)?
thank you
Gene Gurevich
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