Re: [HACKERS] Transaction log

2011-04-06 Thread Robert Haas
On Wed, Apr 6, 2011 at 1:15 PM, aaronenabs wrote: > Wow sounds very complicated. Will have to try that but got to say i am new to > postgresql and might find that difficult. so at the moment i would try and > to the little i can to find parts in the DBMS that can be of use, as i > already tried st

Re: [HACKERS] Transaction log

2011-04-06 Thread aaronenabs
Wow sounds very complicated. Will have to try that but got to say i am new to postgresql and might find that difficult. so at the moment i would try and to the little i can to find parts in the DBMS that can be of use, as i already tried struggling to try and find a way to set the HeapTuplevisiblit

Re: [HACKERS] Transaction log

2011-04-06 Thread Tom Lane
Robert Haas writes: > On Wed, Apr 6, 2011 at 11:13 AM, aaronenabs wrote: >> Thanks for that information would look into the xmin and xmax columns. >> >> so its not possible to turn the HeapTupleVisiblity to true to view dead >> tuples by setting it to >> >> #define HeapTupleSatisfiesVisibility(

Re: [HACKERS] Transaction log

2011-04-06 Thread Robert Haas
On Wed, Apr 6, 2011 at 11:13 AM, aaronenabs wrote: > Thanks for that information would look into the xmin and xmax columns. > > so its not possible to turn the HeapTupleVisiblity to true to view dead > tuples by setting it to > > #define HeapTupleSatisfiesVisibility(tuple, snapshot, buffer)(1) We

Re: [HACKERS] Transaction log

2011-04-06 Thread aaronenabs
Thanks for that information would look into the xmin and xmax columns. so its not possible to turn the HeapTupleVisiblity to true to view dead tuples by setting it to #define HeapTupleSatisfiesVisibility(tuple, snapshot, buffer)(1) -- View this message in context: http://postgresql.1045698.n

Re: [HACKERS] Transaction log

2011-04-06 Thread Robert Haas
On Wed, Apr 6, 2011 at 9:48 AM, aaronenabs wrote: > True, i have looked at pg_dumpfile and worked around that, Seems to be a very > important tool for forensic investigations. But looking for any other aspect > of the DBMS that can be helpful. pageinspect is useful. Also there are hidden xmin an

Re: [HACKERS] Transaction log

2011-04-06 Thread aaronenabs
True, i have looked at pg_dumpfile and worked around that, Seems to be a very important tool for forensic investigations. But looking for any other aspect of the DBMS that can be helpful. -- View this message in context: http://postgresql.1045698.n5.nabble.com/Transaction-log-tp4285471p4286318.ht

Re: [HACKERS] Transaction log

2011-04-06 Thread Robert Haas
On Wed, Apr 6, 2011 at 6:49 AM, aaronenabs wrote: > Well at the minute I am trying to find out sections of postgresql that can be > helpful to carry out a database forensics analysis and thought the most > useful with be the transaction log. So was actually interested in viewing > it. That's pret

Re: [HACKERS] Transaction log

2011-04-06 Thread aaronenabs
Well at the minute I am trying to find out sections of postgresql that can be helpful to carry out a database forensics analysis and thought the most useful with be the transaction log. So was actually interested in viewing it. -- View this message in context: http://postgresql.1045698.n5.nabble.

Re: [HACKERS] Transaction log

2011-04-05 Thread Joshua D. Drake
On Tue, 2011-04-05 at 18:25 -0700, aaronenabs wrote: > Hi All, > > I was wondering if anyone can tell me how i can access the transaction log > within postgresql 9.0.3. > I have carried out some updated and deletions within the database and am > hoping the transaction logs have records of this. Y

[HACKERS] Transaction log

2011-04-05 Thread aaronenabs
Hi All, I was wondering if anyone can tell me how i can access the transaction log within postgresql 9.0.3. I have carried out some updated and deletions within the database and am hoping the transaction logs have records of this. Cheers all -- View this message in context: http://postgresql.10