Re: [HACKERS] Release Notes: Major Changes in 8.2
Hi, Bruce, Bruce Momjian wrote: listitem para Allow inheritance to be removed from tables /para /listitem I'd enhance that to Allow table inheritance relationships to be defined for and removed from pre-existing tables. HTH, Markus -- Markus Schaber | Logical TrackingTracing International AG Dipl. Inf. | Software Development GIS Fight against software patents in Europe! www.ffii.org www.nosoftwarepatents.org signature.asc Description: OpenPGP digital signature
Re: [HACKERS] Release Notes: Major Changes in 8.2
Markus Schaber wrote: -- Start of PGP signed section. Hi, Bruce, Bruce Momjian wrote: listitem para Allow inheritance to be removed from tables /para /listitem I'd enhance that to Allow table inheritance relationships to be defined for and removed from pre-existing tables. Good point. Updated wording: Allow table inheritance to be added and removed from pre-existing tables -- Bruce Momjian [EMAIL PROTECTED] EnterpriseDBhttp://www.enterprisedb.com + If your life is a hard drive, Christ can be your backup. + ---(end of broadcast)--- TIP 5: don't forget to increase your free space map settings
Re: [HACKERS] Release Notes: Major Changes in 8.2
Hi, Bruce, Bruce Momjian wrote: Allow inheritance to be removed from tables I'd enhance that to Allow table inheritance relationships to be defined for and removed from pre-existing tables. Good point. Updated wording: Allow table inheritance to be added and removed from pre-existing tables Agree, that's excellent. Thanks, Markus -- Markus Schaber | Logical TrackingTracing International AG Dipl. Inf. | Software Development GIS Fight against software patents in Europe! www.ffii.org www.nosoftwarepatents.org signature.asc Description: OpenPGP digital signature
Re: [HACKERS] Release Notes: Major Changes in 8.2
Andrew Dunstan wrote: Bruce Momjian wrote: I created a major features list for 8.2 and put it into CVS. Instead of going into detail (meaning the item would not appear in the Changes section below, I just highlighted some of the big stuff, and was purposely vague about the details, so people just have an overview of what is below. Let me know how it looks. Some of these just look rather vague. For example: * More control over creating/dropping objects and inheritance If I did not know what the features were, that item would convey nothing to me. The fact that you can add/drop the inheritance characteristics of a table after its creation isn't something I would just lump under more control - it's a major new feature that will possibly revolutionize the way people use inheritance, especially for partitioning. OK, split items up: listitem para More control over creating and dropping objects /para /listitem listitem para Allow inheritance to be removed from tables /para /listitem -- Bruce Momjian [EMAIL PROTECTED] EnterpriseDBhttp://www.enterprisedb.com + If your life is a hard drive, Christ can be your backup. + ---(end of broadcast)--- TIP 5: don't forget to increase your free space map settings
Re: [HACKERS] Release Notes: Major Changes in 8.2
On Fri, Sep 22, 2006 at 12:59:36PM -0700, Joe Conway wrote: Andrew Sullivan wrote: On Thu, Sep 21, 2006 at 03:05:36PM -0500, Jim C. Nasby wrote: Regardless, I think we should include a section of major new projects/developments from pgFoundry, because they ultimately make PostgreSQL a more useful database. Maybe this list should only be in the I like that. New enhancement products or something? enhancement products makes me think if Encyte and the like... :P Maybe add-ons would be better? In that case, what about things on gborg too? I just updated PL/R for 8.2 compatibility (and finally changed the status from alpha to beta). BTW, I'm happy to move PL/R over to pgFoundry, but became a little concerned about doing that after seeing the lengthy thread regarding pgFoundry concerns (but admittedly, I didn't have time to read the thread in detail, because I'm back over in Germany on a long business trip again). I didn't mention gforge since it'd depricated, but I don't see an issue with listing any add-on projects, no matter where they're hosted. For example, didn't pgAdmin just add support for Slony? That's something worth mentioning. -- Jim Nasby[EMAIL PROTECTED] EnterpriseDB http://enterprisedb.com 512.569.9461 (cell) ---(end of broadcast)--- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
Re: [HACKERS] Release Notes: Major Changes in 8.2
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jim C. Nasby Sent: 25 September 2006 15:03 To: Joe Conway Cc: Andrew Sullivan; pgsql-hackers@postgresql.org Subject: Re: [HACKERS] Release Notes: Major Changes in 8.2 For example, didn't pgAdmin just add support for Slony? That's something worth mentioning. That was our last major release. You can see what will be in 1.6 at http://www.pgadmin.org/development/changelog.php Regards, Dave ---(end of broadcast)--- TIP 6: explain analyze is your friend
Re: [HACKERS] Release Notes: Major Changes in 8.2
On Mon, Sep 25, 2006 at 03:10:39PM +0100, Dave Page wrote: From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jim C. Nasby For example, didn't pgAdmin just add support for Slony? That's something worth mentioning. That was our last major release. You can see what will be in 1.6 at http://www.pgadmin.org/development/changelog.php Could you clarify this a bit? As far as I can tell, it's not possible to set up slony initially with pgadmin 1.4.latest. Has this changed in 1.6? Cheers, D -- David Fetter [EMAIL PROTECTED] http://fetter.org/ phone: +1 415 235 3778AIM: dfetter666 Skype: davidfetter Remember to vote! ---(end of broadcast)--- TIP 2: Don't 'kill -9' the postmaster
Re: [HACKERS] Release Notes: Major Changes in 8.2
-Original Message- From: David Fetter [mailto:[EMAIL PROTECTED] Sent: 25 September 2006 16:57 To: Dave Page Cc: Jim C. Nasby; Joe Conway; Andrew Sullivan; pgsql-hackers@postgresql.org Subject: Re: [HACKERS] Release Notes: Major Changes in 8.2 On Mon, Sep 25, 2006 at 03:10:39PM +0100, Dave Page wrote: From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jim C. Nasby For example, didn't pgAdmin just add support for Slony? That's something worth mentioning. That was our last major release. You can see what will be in 1.6 at http://www.pgadmin.org/development/changelog.php Could you clarify this a bit? As far as I can tell, it's not possible to set up slony initially with pgadmin 1.4.latest. Has this changed in 1.6? The only change to the Slony support in 1.6 is a minor update to allow it to initialise a Slony 1.2 cluster (the version number needs to be inserted into the slony1_funcs script now). The only parts of the initial setup that pgAdmin doesn't do are the installation of the Slony shared libraries, or the copying of the schema (actually, pgAdmin can do this - it just doesn't do it automagically. Just backup and restore the relevant bits of your schema on the slave nodes). All the Slony support in pgAdmin was written as part of a contract with a Japanese company (SKC) to port Slony to Windows - that work was finished almost a year ago. Regards, Dave ---(end of broadcast)--- TIP 2: Don't 'kill -9' the postmaster
Re: [HACKERS] Release Notes: Major Changes in 8.2
Folks, On Thu, Sep 21, 2006 at 03:05:36PM -0500, Jim C. Nasby wrote: Regardless, I think we should include a section of major new projects/developments from pgFoundry, because they ultimately make PostgreSQL a more useful database. Maybe this list should only be in the I like that. New enhancement products or something? A If you're following the release drafting in pgsql-advocacy, you'll see that we're planning on including a section about pgfoundry projects in the extended release on the web, or press kit. So far, I've listed pgPool, PL/Java and Full Disjunctions; I'm not sure what else to list. Suggestions welcome. --Josh Berkus ---(end of broadcast)--- TIP 6: explain analyze is your friend
Re: [HACKERS] Release Notes: Major Changes in 8.2
On Fri, Sep 22, 2006 at 12:59:36PM -0700, Joe Conway wrote: In that case, what about things on gborg too? Yes, same idea. I don't care where the project _lives_; the important thing is its integration with PostgreSQL (and its quality). A -- Andrew Sullivan | [EMAIL PROTECTED] When my information changes, I alter my conclusions. What do you do sir? --attr. John Maynard Keynes ---(end of broadcast)--- TIP 2: Don't 'kill -9' the postmaster
Re: [HACKERS] Release Notes: Major Changes in 8.2
On Thu, 2006-09-21 at 21:45 -0400, Bruce Momjian wrote: Let me know how it looks. Very Good Very last, Minor change thoughts: * Continuous archiving enhancements change: Warm Standby enhancements The improvements to Continuous Archiving relate directly to the creation of Warm Standby servers, so it would be better to mention Warm Standby, not Continuous Archiving (and definitely not PITR) * Monitoring and logging additions add to end of line: improve performance tuning capability * COPY support for SELECT statements change: COPY TO support ... add to end of line: enhances data unload * Array and aggregate improvements add to end of line: , plus SQL:2003 statistical functions -- Simon Riggs EnterpriseDB http://www.enterprisedb.com ---(end of broadcast)--- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
Re: [HACKERS] Release Notes: Major Changes in 8.2
Great, all added. --- Simon Riggs wrote: On Thu, 2006-09-21 at 21:45 -0400, Bruce Momjian wrote: Let me know how it looks. Very Good Very last, Minor change thoughts: * Continuous archiving enhancements change: Warm Standby enhancements The improvements to Continuous Archiving relate directly to the creation of Warm Standby servers, so it would be better to mention Warm Standby, not Continuous Archiving (and definitely not PITR) * Monitoring and logging additions add to end of line: improve performance tuning capability * COPY support for SELECT statements change: COPY TO support ... add to end of line: enhances data unload * Array and aggregate improvements add to end of line: , plus SQL:2003 statistical functions -- Simon Riggs EnterpriseDB http://www.enterprisedb.com ---(end of broadcast)--- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match -- Bruce Momjian [EMAIL PROTECTED] EnterpriseDBhttp://www.enterprisedb.com + If your life is a hard drive, Christ can be your backup. + ---(end of broadcast)--- TIP 6: explain analyze is your friend
Re: [HACKERS] Release Notes: Major Changes in 8.2
On Thu, Sep 21, 2006 at 03:05:36PM -0500, Jim C. Nasby wrote: Regardless, I think we should include a section of major new projects/developments from pgFoundry, because they ultimately make PostgreSQL a more useful database. Maybe this list should only be in the I like that. New enhancement products or something? A -- Andrew Sullivan | [EMAIL PROTECTED] I remember when computers were frustrating because they *did* exactly what you told them to. That actually seems sort of quaint now. --J.D. Baldwin ---(end of broadcast)--- TIP 4: Have you searched our list archives? http://archives.postgresql.org
Re: [HACKERS] Release Notes: Major Changes in 8.2
Bruce Momjian wrote: I created a major features list for 8.2 and put it into CVS. Instead of going into detail (meaning the item would not appear in the Changes section below, I just highlighted some of the big stuff, and was purposely vague about the details, so people just have an overview of what is below. Let me know how it looks. Some of these just look rather vague. For example: * More control over creating/dropping objects and inheritance If I did not know what the features were, that item would convey nothing to me. The fact that you can add/drop the inheritance characteristics of a table after its creation isn't something I would just lump under more control - it's a major new feature that will possibly revolutionize the way people use inheritance, especially for partitioning. cheers andrew ---(end of broadcast)--- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq
Re: [HACKERS] Release Notes: Major Changes in 8.2
Andrew Sullivan wrote: On Thu, Sep 21, 2006 at 03:05:36PM -0500, Jim C. Nasby wrote: Regardless, I think we should include a section of major new projects/developments from pgFoundry, because they ultimately make PostgreSQL a more useful database. Maybe this list should only be in the I like that. New enhancement products or something? In that case, what about things on gborg too? I just updated PL/R for 8.2 compatibility (and finally changed the status from alpha to beta). BTW, I'm happy to move PL/R over to pgFoundry, but became a little concerned about doing that after seeing the lengthy thread regarding pgFoundry concerns (but admittedly, I didn't have time to read the thread in detail, because I'm back over in Germany on a long business trip again). Joe ---(end of broadcast)--- TIP 4: Have you searched our list archives? http://archives.postgresql.org
Re: [HACKERS] Release Notes: Major Changes in 8.2
Simon Riggs napsal(a): Improved monitoring and performance tuning (Tom, Bruce, Greg, Larry) Overhead of statistics collection has been considerably reduced and new statistics and system information is available. Better query logging improves diagnostics and especially performance tuning. Server now includes DTrace support. Indexes can now also be created CONCURRENTLY, allowing application tuning without effecting server availability. You forgot to Robert Lor - author of DTrace support. Zdenek ---(end of broadcast)--- TIP 6: explain analyze is your friend
Re: [HACKERS] Release Notes: Major Changes in 8.2
On Wed, 2006-09-20 at 23:22 -0400, Bruce Momjian wrote: Usually the major items just jump out of the release list. In this case, nothing really jumped out, and I felt if I listed sereral, it was going to look weak because they were not big things, so I figured I would just go with the broad list. Look back at the 7.4 release notes as a comparison. I think 8.0 was such a milestone release we tend to judge ourselves by that and maybe feel like the pace has slackened. IMHO, it has accelerated. We hit the lower hanging fruit first, so early features were major items; later items seem smaller and less important by comparison, especially when completed by a team rather than a few individuals. I don't think it matters whether the new features originated as a single patch or as a stream of smaller patches. The end result is a major improvement in a specific area. Picking one area I'm more familiar with, sort performance was increased over many patches by many people, but the original objective of making a step-change in that area *has* been achieved (even if there are some additional gains still to be had for certain narrower use-cases). The role of the Major changes section is to provide a summary for administrators who need to understand what a new release will give them and make a cost/benefit judgement. We want people to understand the good work that has been done and that does involve some filtering and summarization, and its possibly true that it is harder in this release than others. We need a Major changes section: People don't read the detail: sysadmins are too busy these days. If there are no major features listed, people will assume there are none and say oh its just a bug fix release. If we aren't encouraging people to upgrade, why release at all? Maybe people only upgrade every other release - if so, we'll get all of the 8.0 upgraders. Improving scalability in 8.1 was great. Improving it again in 8.2 is amazing and we should tell people, even if it sounds somewhat boring because we did it last time as well. I think: again, wow, this software is going places. Personally, I'll be ecstatic if we can do that again for 8.3... Or perhaps we can do more broad-stroke list items, like monitoring or performance, as listed below. Whether we like my list or not, I think such a grouped list should exist. I'm mainly seeking to persuade you on that point and would be comfortable even if you came up with a different grouped list. Seeing a list of names after a topic emphasises the community development process. In some cases, there was a stated objective and that has been achieved. In other cases there was a community-driven move in directions maybe we didn't predict. In the latter case, surely it is the strength of open source that evolution works so well and really does produce noticeably major changes. The changes in monitoring and tuning tools is an excellent example: many smaller changes making a significant improvement. Please vote in favour of a Major Changes section. -- Simon Riggs EnterpriseDB http://www.enterprisedb.com ---(end of broadcast)--- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
Re: [HACKERS] Release Notes: Major Changes in 8.2
Josh Berkus wrote: Bruce, What happened to PL/pgSQL debugging? Did it die? The debuggers is going to be on pgfoundry, if it isn't there already. The idea is that it would be loadable for 8.2, work out all the bugs, and perhaps included in 8.3. -- Bruce Momjian [EMAIL PROTECTED] EnterpriseDBhttp://www.enterprisedb.com + If your life is a hard drive, Christ can be your backup. + ---(end of broadcast)--- TIP 1: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly
Re: [HACKERS] Release Notes: Major Changes in 8.2
OK, I will work it. --- Simon Riggs wrote: On Wed, 2006-09-20 at 23:22 -0400, Bruce Momjian wrote: Usually the major items just jump out of the release list. In this case, nothing really jumped out, and I felt if I listed sereral, it was going to look weak because they were not big things, so I figured I would just go with the broad list. Look back at the 7.4 release notes as a comparison. I think 8.0 was such a milestone release we tend to judge ourselves by that and maybe feel like the pace has slackened. IMHO, it has accelerated. We hit the lower hanging fruit first, so early features were major items; later items seem smaller and less important by comparison, especially when completed by a team rather than a few individuals. I don't think it matters whether the new features originated as a single patch or as a stream of smaller patches. The end result is a major improvement in a specific area. Picking one area I'm more familiar with, sort performance was increased over many patches by many people, but the original objective of making a step-change in that area *has* been achieved (even if there are some additional gains still to be had for certain narrower use-cases). The role of the Major changes section is to provide a summary for administrators who need to understand what a new release will give them and make a cost/benefit judgement. We want people to understand the good work that has been done and that does involve some filtering and summarization, and its possibly true that it is harder in this release than others. We need a Major changes section: People don't read the detail: sysadmins are too busy these days. If there are no major features listed, people will assume there are none and say oh its just a bug fix release. If we aren't encouraging people to upgrade, why release at all? Maybe people only upgrade every other release - if so, we'll get all of the 8.0 upgraders. Improving scalability in 8.1 was great. Improving it again in 8.2 is amazing and we should tell people, even if it sounds somewhat boring because we did it last time as well. I think: again, wow, this software is going places. Personally, I'll be ecstatic if we can do that again for 8.3... Or perhaps we can do more broad-stroke list items, like monitoring or performance, as listed below. Whether we like my list or not, I think such a grouped list should exist. I'm mainly seeking to persuade you on that point and would be comfortable even if you came up with a different grouped list. Seeing a list of names after a topic emphasises the community development process. In some cases, there was a stated objective and that has been achieved. In other cases there was a community-driven move in directions maybe we didn't predict. In the latter case, surely it is the strength of open source that evolution works so well and really does produce noticeably major changes. The changes in monitoring and tuning tools is an excellent example: many smaller changes making a significant improvement. Please vote in favour of a Major Changes section. -- Simon Riggs EnterpriseDB http://www.enterprisedb.com ---(end of broadcast)--- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match -- Bruce Momjian [EMAIL PROTECTED] EnterpriseDBhttp://www.enterprisedb.com + If your life is a hard drive, Christ can be your backup. + ---(end of broadcast)--- TIP 6: explain analyze is your friend
Re: [HACKERS] Release Notes: Major Changes in 8.2
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Bruce Momjian Sent: 21 September 2006 16:25 To: Josh Berkus Cc: pgsql-hackers@postgresql.org; Simon Riggs Subject: Re: [HACKERS] Release Notes: Major Changes in 8.2 Josh Berkus wrote: Bruce, What happened to PL/pgSQL debugging? Did it die? The debuggers is going to be on pgfoundry, if it isn't there already. The idea is that it would be loadable for 8.2, work out all the bugs, and perhaps included in 8.3. We've also discussed bundling the GUI with pgAdmin for 1.8 (which will be released with 8.3) so that idea could work out nicely. Regards, Dave. ---(end of broadcast)--- TIP 2: Don't 'kill -9' the postmaster
Re: [HACKERS] Release Notes: Major Changes in 8.2
Bruce, All: The debuggers is going to be on pgfoundry, if it isn't there already. The idea is that it would be loadable for 8.2, work out all the bugs, and perhaps included in 8.3. So, should I take this off the press list for 8.2 and save it for 8.3, when the feature will be actually useful? Second question: are the Advisory Locks actually a unique PostgreSQL feature, or are these something other databases already have? --Josh Berkus ---(end of broadcast)--- TIP 5: don't forget to increase your free space map settings
Re: [HACKERS] Release Notes: Major Changes in 8.2
On Thu, Sep 21, 2006 at 11:24:53AM -0400, Bruce Momjian wrote: Josh Berkus wrote: Bruce, What happened to PL/pgSQL debugging? Did it die? The debuggers is going to be on pgfoundry, if it isn't there already. The idea is that it would be loadable for 8.2, work out all the bugs, and perhaps included in 8.3. But didn't we end up putting some hooks in the backend to make this possible? Regardless, I think we should include a section of major new projects/developments from pgFoundry, because they ultimately make PostgreSQL a more useful database. Maybe this list should only be in the PR (and not the release notes)... -- Jim Nasby[EMAIL PROTECTED] EnterpriseDB http://enterprisedb.com 512.569.9461 (cell) ---(end of broadcast)--- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
Re: [HACKERS] Release Notes: Major Changes in 8.2
Josh Berkus wrote: Bruce, All: The debuggers is going to be on pgfoundry, if it isn't there already. The idea is that it would be loadable for 8.2, work out all the bugs, and perhaps included in 8.3. So, should I take this off the press list for 8.2 and save it for 8.3, when the feature will be actually useful? Yes, I think so. Second question: are the Advisory Locks actually a unique PostgreSQL feature, or are these something other databases already have? Probably not unique. -- Bruce Momjian [EMAIL PROTECTED] EnterpriseDBhttp://www.enterprisedb.com + If your life is a hard drive, Christ can be your backup. + ---(end of broadcast)--- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq
Re: [HACKERS] Release Notes: Major Changes in 8.2
[EMAIL PROTECTED] (Bruce Momjian) writes: Josh Berkus wrote: Bruce, What happened to PL/pgSQL debugging? Did it die? The debuggers is going to be on pgfoundry, if it isn't there already. The idea is that it would be loadable for 8.2, work out all the bugs, and perhaps included in 8.3. If we now have the hooks in place, then it is surely worth saying so. To then point people to pgFoundry for an add-on debugger application seems pretty fair. -- select 'cbbrowne' || '@' || 'cbbrowne.com'; http://linuxdatabases.info/info/finances.html Rules of the Evil Overlord #133. If I find my beautiful consort with access to my fortress has been associating with the hero, I'll have her executed. It's regrettable, but new consorts are easier to get than new fortresses and maybe the next one will pay attention at the orientation meeting. http://www.eviloverlord.com/ ---(end of broadcast)--- TIP 1: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly
Re: [HACKERS] Release Notes: Major Changes in 8.2
Simon Riggs wrote: SQL:2003 Analytical functions (Sergey, Tom, Neil) All statistical aggregate functions defined by SQL:2003 are now supported and user-defined aggregates now can take multiple columns as inputs. Could this be a good starting point for SQL:2003 Window functions as now the work on SQL:2003 statistical functions are done? As experienced postgres developers what would be your roadmap to implement window functions? ---(end of broadcast)--- TIP 2: Don't 'kill -9' the postmaster
Re: [HACKERS] Release Notes: Major Changes in 8.2
I created a major features list for 8.2 and put it into CVS. Instead of going into detail (meaning the item would not appear in the Changes section below, I just highlighted some of the big stuff, and was purposely vague about the details, so people just have an overview of what is below. Let me know how it looks. Simon's list below looks good, but it really has a lot of details, particuarly it goes into use-cases for many of the features, and in fact goes into more detail that we even have in the release notes now. Is that what people want? My concern is that if we push too much information, it is hard to see the actual features, i.e. if we say, we have feature X, and it is good for Y, Z, and Q do people remember Y and Z and forget X? Again, I don't want to be the person writing these release notes, so I am looking for feedback, good or bad. --- Simon Riggs wrote: I'd like to include a section on Major changes in this release at the top of the release notes, as has been done for at least the last 6 major releases. The notes below are one stab at that, for **discussion**. I've tried to arrange specific changes into groups... Major changes in this release: Improved scalability and performance on multi-processor systems (Tom, Alvaro, Itagaki, Qingqing, Heikki) A variety of changes improves the performance of both sequential scans and index scans, as well as enhancing multi-processor scalability. The advanced query optimizer has also been further enhanced, allowing indexes and partitioning to be useful in more cases. Improved utility and large query performance (Tom, Simon, Alon, Andreas) Large sorts will have typical performance increases of 100-300%, improving complex queries and creating new indexes. Loading times have also been reduced. Large queries, data loads, upgrades and restores will be considerably improved. Improved monitoring and performance tuning (Tom, Bruce, Greg, Larry) Overhead of statistics collection has been considerably reduced and new statistics and system information is available. Better query logging improves diagnostics and especially performance tuning. Server now includes DTrace support. Indexes can now also be created CONCURRENTLY, allowing application tuning without effecting server availability. Zero administration overhead now possible (Alvaro) With autovacuum enabled, all required vacuuming will now take place without administrator intervention enabling wider distribution of embedded databases. Improved defaults and configuration (Peter, Andrew) Installation defaults are now improved for many tunable memory parameters and these can now be specified in kB, MB and GB. Warm Standby Servers for High Availability (Simon, Tom) Warm Standby servers can now be more easily configured and are appropriate in a wider range of circumstances than previously. Improved scalability and performance of text search: GIN and Tsearch2 (Teodor, Oleg) New GIN indexes allow much larger text search indexes than were previously possible. TSearch2 has been enhanced and performance has also been greatly improved. Enhanced DML Functionality (Jonah, Joe, Tom, Susanne, Atsushi) INSERT/UPDATE/DELETE RETURNING and INSERT .. VALUES (), VALUES (), VALUES () allow more efficient application designs. Enhancements to UPDATE and DELETE allow additional constructs for clarity and ease of use. SQL:2003 Analytical functions (Sergey, Tom, Neil) All statistical aggregate functions defined by SQL:2003 are now supported and user-defined aggregates now can take multiple columns as inputs. -- Simon Riggs EnterpriseDB http://www.enterprisedb.com ---(end of broadcast)--- TIP 4: Have you searched our list archives? http://archives.postgresql.org -- Bruce Momjian [EMAIL PROTECTED] EnterpriseDBhttp://www.enterprisedb.com + If your life is a hard drive, Christ can be your backup. + ---(end of broadcast)--- TIP 2: Don't 'kill -9' the postmaster
[HACKERS] Release Notes: Major Changes in 8.2
I'd like to include a section on Major changes in this release at the top of the release notes, as has been done for at least the last 6 major releases. The notes below are one stab at that, for **discussion**. I've tried to arrange specific changes into groups... Major changes in this release: Improved scalability and performance on multi-processor systems (Tom, Alvaro, Itagaki, Qingqing, Heikki) A variety of changes improves the performance of both sequential scans and index scans, as well as enhancing multi-processor scalability. The advanced query optimizer has also been further enhanced, allowing indexes and partitioning to be useful in more cases. Improved utility and large query performance (Tom, Simon, Alon, Andreas) Large sorts will have typical performance increases of 100-300%, improving complex queries and creating new indexes. Loading times have also been reduced. Large queries, data loads, upgrades and restores will be considerably improved. Improved monitoring and performance tuning (Tom, Bruce, Greg, Larry) Overhead of statistics collection has been considerably reduced and new statistics and system information is available. Better query logging improves diagnostics and especially performance tuning. Server now includes DTrace support. Indexes can now also be created CONCURRENTLY, allowing application tuning without effecting server availability. Zero administration overhead now possible (Alvaro) With autovacuum enabled, all required vacuuming will now take place without administrator intervention enabling wider distribution of embedded databases. Improved defaults and configuration (Peter, Andrew) Installation defaults are now improved for many tunable memory parameters and these can now be specified in kB, MB and GB. Warm Standby Servers for High Availability (Simon, Tom) Warm Standby servers can now be more easily configured and are appropriate in a wider range of circumstances than previously. Improved scalability and performance of text search: GIN and Tsearch2 (Teodor, Oleg) New GIN indexes allow much larger text search indexes than were previously possible. TSearch2 has been enhanced and performance has also been greatly improved. Enhanced DML Functionality (Jonah, Joe, Tom, Susanne, Atsushi) INSERT/UPDATE/DELETE RETURNING and INSERT .. VALUES (), VALUES (), VALUES () allow more efficient application designs. Enhancements to UPDATE and DELETE allow additional constructs for clarity and ease of use. SQL:2003 Analytical functions (Sergey, Tom, Neil) All statistical aggregate functions defined by SQL:2003 are now supported and user-defined aggregates now can take multiple columns as inputs. -- Simon Riggs EnterpriseDB http://www.enterprisedb.com ---(end of broadcast)--- TIP 4: Have you searched our list archives? http://archives.postgresql.org
Re: [HACKERS] Release Notes: Major Changes in 8.2
Simon Riggs wrote: Zero administration overhead now possible (Alvaro) With autovacuum enabled, all required vacuuming will now take place without administrator intervention enabling wider distribution of embedded databases. This was true for 8.1 already, no? Regards, Andreas ---(end of broadcast)--- TIP 6: explain analyze is your friend
Re: [HACKERS] Release Notes: Major Changes in 8.2
Andreas Pflug wrote: Simon Riggs wrote: Zero administration overhead now possible (Alvaro) With autovacuum enabled, all required vacuuming will now take place without administrator intervention enabling wider distribution of embedded databases. This was true for 8.1 already, no? No. 8.1 did not have it turned on by default. Sincerely, Joshua D. Drake Regards, Andreas ---(end of broadcast)--- TIP 6: explain analyze is your friend -- === The PostgreSQL Company: Command Prompt, Inc. === Sales/Support: +1.503.667.4564 || 24x7/Emergency: +1.800.492.2240 Providing the most comprehensive PostgreSQL solutions since 1997 http://www.commandprompt.com/ ---(end of broadcast)--- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq
Re: [HACKERS] Release Notes: Major Changes in 8.2
On Wed, 2006-09-20 at 18:22 +0200, Andreas Pflug wrote: Simon Riggs wrote: Zero administration overhead now possible (Alvaro) With autovacuum enabled, all required vacuuming will now take place without administrator intervention enabling wider distribution of embedded databases. This was true for 8.1 already, no? Hmmm. You're correct. Perhaps that is not a major change after all. -- Simon Riggs EnterpriseDB http://www.enterprisedb.com ---(end of broadcast)--- TIP 2: Don't 'kill -9' the postmaster
Re: [HACKERS] Release Notes: Major Changes in 8.2
Joshua D. Drake [EMAIL PROTECTED] writes: No. 8.1 did not have it turned on by default. Neither does 8.2 though. -- Gregory Stark EnterpriseDB http://www.enterprisedb.com ---(end of broadcast)--- TIP 6: explain analyze is your friend
Re: [HACKERS] Release Notes: Major Changes in 8.2
Simon Riggs wrote: On Wed, 2006-09-20 at 18:22 +0200, Andreas Pflug wrote: Simon Riggs wrote: Zero administration overhead now possible (Alvaro) With autovacuum enabled, all required vacuuming will now take place without administrator intervention enabling wider distribution of embedded databases. This was true for 8.1 already, no? Hmmm. You're correct. Perhaps that is not a major change after all. What happened in 8.2 is that you no longer need database-wide vacuums, ever (except for template databases). Not sure if that qualifies as a major change or not. -- Alvaro Herrerahttp://www.CommandPrompt.com/ PostgreSQL Replication, Consulting, Custom Development, 24x7 support ---(end of broadcast)--- TIP 5: don't forget to increase your free space map settings
Re: [HACKERS] Release Notes: Major Changes in 8.2
Gregory Stark wrote: Joshua D. Drake [EMAIL PROTECTED] writes: No. 8.1 did not have it turned on by default. Neither does 8.2 though. oh... heh. J -- === The PostgreSQL Company: Command Prompt, Inc. === Sales/Support: +1.503.667.4564 || 24x7/Emergency: +1.800.492.2240 Providing the most comprehensive PostgreSQL solutions since 1997 http://www.commandprompt.com/ ---(end of broadcast)--- TIP 5: don't forget to increase your free space map settings
Re: [HACKERS] Release Notes: Major Changes in 8.2
Usually the major items just jump out of the release list. In this case, nothing really jumped out, and I felt if I listed sereral, it was going to look weak because they were not big things, so I figured I would just go with the broad list. The criteria I usually use are things that were not easy to do before. Does the list below look good for inclusion? I guess my point is that what we have now overwhelms people with the number of small things we did. If you try to put a few at the top, does it diminish it because the top things are not large? Or perhaps we can do more broad-stroke list items, like monitoring or performance, as listed below. --- Simon Riggs wrote: I'd like to include a section on Major changes in this release at the top of the release notes, as has been done for at least the last 6 major releases. The notes below are one stab at that, for **discussion**. I've tried to arrange specific changes into groups... Major changes in this release: Improved scalability and performance on multi-processor systems (Tom, Alvaro, Itagaki, Qingqing, Heikki) A variety of changes improves the performance of both sequential scans and index scans, as well as enhancing multi-processor scalability. The advanced query optimizer has also been further enhanced, allowing indexes and partitioning to be useful in more cases. Improved utility and large query performance (Tom, Simon, Alon, Andreas) Large sorts will have typical performance increases of 100-300%, improving complex queries and creating new indexes. Loading times have also been reduced. Large queries, data loads, upgrades and restores will be considerably improved. Improved monitoring and performance tuning (Tom, Bruce, Greg, Larry) Overhead of statistics collection has been considerably reduced and new statistics and system information is available. Better query logging improves diagnostics and especially performance tuning. Server now includes DTrace support. Indexes can now also be created CONCURRENTLY, allowing application tuning without effecting server availability. Zero administration overhead now possible (Alvaro) With autovacuum enabled, all required vacuuming will now take place without administrator intervention enabling wider distribution of embedded databases. Improved defaults and configuration (Peter, Andrew) Installation defaults are now improved for many tunable memory parameters and these can now be specified in kB, MB and GB. Warm Standby Servers for High Availability (Simon, Tom) Warm Standby servers can now be more easily configured and are appropriate in a wider range of circumstances than previously. Improved scalability and performance of text search: GIN and Tsearch2 (Teodor, Oleg) New GIN indexes allow much larger text search indexes than were previously possible. TSearch2 has been enhanced and performance has also been greatly improved. Enhanced DML Functionality (Jonah, Joe, Tom, Susanne, Atsushi) INSERT/UPDATE/DELETE RETURNING and INSERT .. VALUES (), VALUES (), VALUES () allow more efficient application designs. Enhancements to UPDATE and DELETE allow additional constructs for clarity and ease of use. SQL:2003 Analytical functions (Sergey, Tom, Neil) All statistical aggregate functions defined by SQL:2003 are now supported and user-defined aggregates now can take multiple columns as inputs. -- Simon Riggs EnterpriseDB http://www.enterprisedb.com ---(end of broadcast)--- TIP 4: Have you searched our list archives? http://archives.postgresql.org -- Bruce Momjian [EMAIL PROTECTED] EnterpriseDBhttp://www.enterprisedb.com + If your life is a hard drive, Christ can be your backup. + ---(end of broadcast)--- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq
Re: [HACKERS] Release Notes: Major Changes in 8.2
Bruce, What happened to PL/pgSQL debugging? Did it die? -- Josh Berkus PostgreSQL @ Sun San Francisco ---(end of broadcast)--- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
