[BUGS] Estimation of Plan quality

2010-08-31 Thread vamsi krishna
Dear all Can someone tell me how to estimate the quality of my plan. For example if the ideal query plan generated by Dynamic Programming has a plan quality of 1.0, and suppose I generate my query plan with some greedy method or something, it will be worse (not as optimal as) than ideal plan by,

[BUGS] issue about information_schema REFERENTIAL_CONSTRAINTS

2010-08-31 Thread Fabien COELHO
Hello, I haven't found a bug management system about postgresql, so here is a mail. Maybe this issue was already reported, sorry if it is the case. I have seen anything about the information_schema in pg todo list. This is tested on postgresql 8.4.4. The REFERENTIAL_CONSTRAINTS table in the

Re: [BUGS] issue about information_schema REFERENTIAL_CONSTRAINTS

2010-08-31 Thread Tom Lane
Fabien COELHO writes: > The REFERENTIAL_CONSTRAINTS table in the information_schema references a > constaint through its database/schema/name, but this information is not > unique, so it may identify several constraints, thus the information > derived may not be consistent. Postgres does not e

Re: [BUGS] BUG #5631: psql dumps core during command editing

2010-08-31 Thread Bruce Momjian
David L Kensiski wrote: > I though of that, but it's linked into the binary. Maybe this is a > problem with the Sun build and not the code? How do I get in touch > with the build maintainer? Is there a README in the build install somewhere? --

Re: [BUGS] BUG #5632: won't unistall properly

2010-08-31 Thread Bruce Momjian
Robert Koch wrote: > > The following bug has been logged online: > > Bug reference: 5632 > Logged by: Robert Koch > Email address: expenda...@aemail4u.com > PostgreSQL version: 8.4.4-1 > Operating system: Windows 2000 Pro > Description:won't unistall properly > Detail

Re: [BUGS] Exclude constraint problem

2010-08-31 Thread Jeff Davis
On Mon, 2010-08-30 at 20:06 -0400, Tom Lane wrote: > Jeff Davis writes: > > On Mon, 2010-08-30 at 19:40 -0400, Tom Lane wrote: > >> That's really *not* supposed to happen, assuming that both machines have > >> IEEE float arithmetic and competently written float I/O code. > > > On my machine I see

Re: [BUGS] Exclude constraint problem

2010-08-31 Thread Tom Lane
Jeff Davis writes: > On Mon, 2010-08-30 at 20:06 -0400, Tom Lane wrote: >> You need extra_float_digits cranked up. Which pg_dump knows about. > I can't reproduce the problem with float4/8, but I still see a problem > with floating-point timestamps: Hmmm ... timestamp_out pays no attention to ex

Re: [BUGS] Exclude constraint problem

2010-08-31 Thread Jeff Davis
On Tue, 2010-08-31 at 14:13 -0400, Tom Lane wrote: > Jeff Davis writes: > > On Mon, 2010-08-30 at 20:06 -0400, Tom Lane wrote: > >> You need extra_float_digits cranked up. Which pg_dump knows about. > > > I can't reproduce the problem with float4/8, but I still see a problem > > with floating-po