Re: [HACKERS] Not-so-open items

2006-09-14 Thread Gregory Stark

Tom Lane [EMAIL PROTECTED] writes:

 I changed the locking thing I was worried about.  Unless Greg wants to
 do some real-world performance measurements to confirm or refute that
 change, I think this can be closed.

I could do some if you're curious but my feeling is that the conservative
choice is the right choice here regardless of what those numbers would show.
So yeah, it should be closed.

-- 
  Gregory Stark
  EnterpriseDB  http://www.enterprisedb.com

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Re: [HACKERS] Not-so-open items

2006-09-14 Thread Bruce Momjian
Tom Lane wrote:
 There are several entries on the 8.2 open-items list that I think can be
 removed:
 
   Fix backward array comparison - subset
 
 Done (this was redundant with the containment-operator item)

OK, that wasn't clear to me.

   Store only active XIDs in subtransaction cache
 
 Per my note just now, this probably should wait for 8.3.

OK, added to TODO.

   Double vacuum speed on tables with no indexes
 
 I changed the locking thing I was worried about.  Unless Greg wants to
 do some real-world performance measurements to confirm or refute that
 change, I think this can be closed.

OK, removed.

 
   Fix excessive page checking for new btree split code
 
 Per my note yesterday, I can't reproduce the misbehavior I saw six weeks
 ago, so I recommend we leave the code alone.

OK, removed.

   Suppress error on bind parameters of unknown types
 
 I haven't heard one single person speak up to say yeah, that's a good
 idea, so I conclude it probably isn't.  Recommend we not change it.

OK, removed.

 BTW, pushing out an 8.1.5 is probably a good idea, but what's it doing
 in the 8.2 open-items list?  Especially in the documentation section?

It is something that has to happen before final release, but is not a
_code_ item, so I threw it there.

-- 
  Bruce Momjian   [EMAIL PROTECTED]
  EnterpriseDBhttp://www.enterprisedb.com

  + If your life is a hard drive, Christ can be your backup. +

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Re: [HACKERS] Not-so-open items

2006-09-14 Thread Tom Lane
Bruce Momjian [EMAIL PROTECTED] writes:
 Tom Lane wrote:
 Store only active XIDs in subtransaction cache
 
 Per my note just now, this probably should wait for 8.3.

 OK, added to TODO.

Actually, I realized this morning that there isn't anything there that
the current code doesn't do already.  A subxact will never be assigned
an XID in the first place unless it stores tuples into the database.
(This means the do-I-need-to-do-something tests in
RecordSubTransactionCommit and RecordSubTransactionAbort are pretty much
redundant...)

So you might as well drop it from TODO --- perhaps there are variant
ideas we could use, but I don't know what they are.

regards, tom lane

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Re: [HACKERS] Not-so-open items

2006-09-14 Thread Bruce Momjian

OK, removed.

---

Tom Lane wrote:
 Bruce Momjian [EMAIL PROTECTED] writes:
  Tom Lane wrote:
  Store only active XIDs in subtransaction cache
  
  Per my note just now, this probably should wait for 8.3.
 
  OK, added to TODO.
 
 Actually, I realized this morning that there isn't anything there that
 the current code doesn't do already.  A subxact will never be assigned
 an XID in the first place unless it stores tuples into the database.
 (This means the do-I-need-to-do-something tests in
 RecordSubTransactionCommit and RecordSubTransactionAbort are pretty much
 redundant...)
 
 So you might as well drop it from TODO --- perhaps there are variant
 ideas we could use, but I don't know what they are.
 
   regards, tom lane
 
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 TIP 9: In versions below 8.0, the planner will ignore your desire to
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match

-- 
  Bruce Momjian   [EMAIL PROTECTED]
  EnterpriseDBhttp://www.enterprisedb.com

  + If your life is a hard drive, Christ can be your backup. +

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[HACKERS] Not-so-open items

2006-09-13 Thread Tom Lane
There are several entries on the 8.2 open-items list that I think can be
removed:

Fix backward array comparison - subset

Done (this was redundant with the containment-operator item)

Store only active XIDs in subtransaction cache

Per my note just now, this probably should wait for 8.3.

Double vacuum speed on tables with no indexes

I changed the locking thing I was worried about.  Unless Greg wants to
do some real-world performance measurements to confirm or refute that
change, I think this can be closed.

Fix excessive page checking for new btree split code

Per my note yesterday, I can't reproduce the misbehavior I saw six weeks
ago, so I recommend we leave the code alone.

Suppress error on bind parameters of unknown types

I haven't heard one single person speak up to say yeah, that's a good
idea, so I conclude it probably isn't.  Recommend we not change it.


BTW, pushing out an 8.1.5 is probably a good idea, but what's it doing
in the 8.2 open-items list?  Especially in the documentation section?

regards, tom lane

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