How to rollback all open PostgreSQL transactions -


How do I open all postgres transactions for a specific database?

Can I do this by adding some of these 2 statements? 

  - Get transaction identifier from pg_prepared_xacts to select gid where database = 'mydb'; - Rollback transaction prepared by identifier rollback 'GID';

rollback made only two-step commit transactions Affects. It does not have any effect on the normal transaction.

If you really mean that you want to rollback all created transactions , then you will see it as although you can do with a loop on pg_prepared_xacts , because rollback is designed can not run within a transaction, you'll need an external client app.

I recommend doing this only on a debug / test system, keep in mind about the data; otherwise, after making sure to rollback the different transactions with hand they are not important 2PC usually when Data is important, and a prepaid transaction is equivalent to a real COMMIT , as far as most apps are concerned - they expect that the committed will actually be up to disk Arrived A. Of course, you know that was the case should not lose cases ready to lie because even your Aksa transaction manager (or whatever you're using) should keep track and ready-recorded transactions.

Here's a quick and dirty script that I recently wrote for such a purpose: 

  #! / Usr / bin / env python # # purged all designed tasks specified database # # The easiest way to get Psycopg2 on Windows with ActiveState Python: # Active Python (http: //www.activestate. com / activepython / downloads) # psycopg2 (http://code.activestate.com/pypm/psycopg2/) import system imports psycopg2 import Upproses that LAN (sys.argv)! = 2: print ( "Usage: Clinap_ prepared_xacts.py" dbname = mydb ... '') conn = psycopg2.connect (sys.argv [1]) conn.set_isolation_level (psycopg2. Extensions.ISOLATION_LEVEL_AUTOCOMMIT) curs = conn.cursor ( ) curs.execute ( "select gid fROM pg_prepared_xacts WHERE database = current_database ()") for (gid,) in curs.fetchall (): curs.execute ( "ROLLBAC K ready% s", (gid,))

-

Comments

Post a Comment

Popular posts from this blog

sqlite3 - UPDATE a table from the SELECT of another one -

I have the first table article where some data is missing. In the table, articles_tmp I have a part of the missing data. So I want to update the articles. Where the path path is data in articles_tmp.path where the path is not zero . With SQLite , it does not work: update article SET path = (SELECT at.path FROM Articles_tmp as AS, WHERE at.article_id = a.id and a.asp, the text is in the form and not on. It has been transmitted) where the path is null MS Access Along with, it works fine: Update Articles Join the Inner Articles at articles_tmp articles.id = articles_tmp.id SETP articles.path = articles_tmp.path Can anyone help? Sin CE SQL Server Syntax, which I provided, was not working, here this solution With whom I have come. A little modification of your original query, but with my "correlation" suggestion added. There is a SQL Bella for this: Here is the code: update article SET path = (SELECT path from articles_tmp AS T WHERE t.id
Read more

c# - Showing a SelectedItem's Property -

So I have enabled a rightclick option for my DataGrid. I want to display the only chosen property but it is not behaving like what I would like it to display my name and additional. Public category Paymentinfo {public int PaymentNo {get; Set; } Public string date {get; Set; } Public Double Pay {get; Set; } Public Double Principle {get; Set; } Public Double Interest {get; Set; } Public Double Balance {Received; Set; }} Private Zero MenuItem_OnClick (Object Sender, RoutedEventArgs e) {MessageBox.Show (AmortGrid.SelectedItem.ToString ()); } I'm trying to apply it without using a View Module! If I place a breakpoint where the messagebox and the recipient place it on selected ITEM, then this property will display the payment. A date-payment-principle-interest-balance is the only value that needs payment. Was hoping that it would be something like this MessageBox.Show (AmortGrid.SelectedItem.PaymentNo.ToString ()); When you call ToString () So you get the class typ
Read more

javascript - Render HTML after each iteration in loop -

I'm trying to gradually increase the font size of text on a web page. The code works in my place, although the new HTML / CSS does not render after every iteration of the loop and when all this is done, then display only the text of 100 px size. To see the text as if it is slowly zooming, I need to do this JavaScript is down because it is being used from a different file here is what I have ... < Pre> & lt; P class = "game-title" style = "font-size: 50px" & gt; Test & lt; / P & gt; Function sleep (milliseconds) {var start = new date (). GetTime (); For (var i = 0; i & lt; 1e7; i ++) {if ((new date). GetTime () - start) & gt; Milliseconds {break; CSS ('font-size', 'parseInt ($ (' game-title '). CSS (' font-size ')) + 1 + "pixels"); } While (parasont ($ ('# text'). Css ('font-size')) & lt; = 100) {sleep (1000); IncreaseSize (); Using CSS: Use of jQuery (sample):
Read more