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* No Effect on defining Indices
@ 1995-01-11 10:00 Michael Ehrmantraut <ibmpa!beo.heidelbg.ibm.com!ehrman@ibminet.awdpa.ibm.com>
0 siblings, 1 reply; 2+ messages in thread
From: Michael Ehrmantraut @ 1995-01-11 10:00 UTC (permalink / raw)
To: Postgres <postgres%postgres.Berkeley.EDU@ibmpa.awdpa.ibm.com>
Hello everyone,
I hope there is someone that can help me.
I have installed Postgres 4.2 on AIX. It works well since two or
three month. But now, I get some problems on defining Indices.
When I do this with the command "define index ... using btree ..."
on a normal attribut (int4) by using the default operators "int4_ops"
I am getting no effect. POSTGRES gives me no errors, but when I
start a "retrieve"-command the result is not ordered.
When executing the example "chapter13" in ".../src/examples" all works
well, but the last output is not o.k. The operator <<& works well and
don't print the line with "number=-10000". But the output is not ordered.
Are there any hints in the manual I didn't see ?
Did I make a basic mistake ?
Doesn't Version 4.2 support indices anymore ?
Please help me
Michael Ehrmantraut
ehrman@beo.heidelbg.ibm.com
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^ permalink raw reply [nested|flat] 2+ messages in thread
* Re: No Effect on defining Indices
@ 1995-01-11 15:16 Paul M. Aoki <aoki@cs.berkeley.edu>
parent: Michael Ehrmantraut <ibmpa!beo.heidelbg.ibm.com!ehrman@ibminet.awdpa.ibm.com>
0 siblings, 0 replies; 2+ messages in thread
From: Paul M. Aoki @ 1995-01-11 15:16 UTC (permalink / raw)
To: Michael Ehrmantraut <ibmpa!beo.heidelbg.ibm.com!ehrman@ibminet.awdpa.ibm.com>; +Cc: legacy
ibmpa!beo.heidelbg.ibm.com!ehrman@ibminet.awdpa.ibm.com (Michael Ehrmantraut) writes:
> When executing the example "chapter13" in ".../src/examples" all works
> well, but the last output is not o.k. The operator <<& works well and
> don't print the line with "number=-10000". But the output is not ordered.
there's this footnote somewhere on that page or the previous page of
the user manual that discusses the cost-based optimizer and why the
actual result may not really look like the example..
--
Paul M. Aoki | University of California at Berkeley
aoki@CS.Berkeley.EDU | Dept. of EECS, Computer Science Division (#1776)
| Berkeley, CA 94720-1776
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the subject line ADD or DEL to "postgres-request@postgres.Berkeley.EDU".
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==============================================================================
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1995-01-11 10:00 No Effect on defining Indices Michael Ehrmantraut <ibmpa!beo.heidelbg.ibm.com!ehrman@ibminet.awdpa.ibm.com>
1995-01-11 15:16 ` Paul M. Aoki <aoki@cs.berkeley.edu>
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