Bug report #845

Problem with large attribute tables

Added by Otto Dassau over 16 years ago. Updated over 14 years ago.

Assignee:Marco Hugentobler
Affected QGIS version: Regression?:No
Operating System:Debian Easy fix?:No
Pull Request or Patch supplied: Resolution:fixed
Crashes QGIS or corrupts data: Copied to github as #:10904



I tried to open the database table of a very large shape file.

dbf -> 770 MB
shp -> 384 MB
shx -> 7 MB

Loading and visualizing the file works fine, although it takes some minutes, but opening the attribute table fails.

The error message is:

QIconvCodec::convertToUnicode: using ASCII for conversion, iconv_open failed
terminate called after throwing an instance of 'std::bad_alloc'
what(): std::bad_alloc
Abgebrochen (core dumped)

When I generate a stacktrace, all it says is:

#0 0xffffe410 in ?? ()
Cannot access memory at address 0xbf8e8520

  1. Comment by Marco Hugentober:

The problem is that you run out of virtual memory (RAM and
swap partition are full) and so the bad_alloc exception is
thrown.In the short run we should add a try/catch block and in the long run not read all the rows into memory.


#1 Updated by Jürgen Fischer over 16 years ago

Marcos fix is already in 33b27214 (SVN r7702)

#2 Updated by Otto Dassau over 16 years ago

  1. comment by Tim Sutton

This is really a side effect of ticket

The table display needs to be redesigned to use qt interview
framework. I have some in progress work to do this, and martin has been doing some similar work in python.

#3 Updated by Paolo Cavallini about 15 years ago

Does recently added Better Table by Martin solve this?

#4 Updated by Paolo Cavallini about 15 years ago

  • Resolution set to fixed
  • Status changed from Open to Closed

I assume (no such large data at hand) it does solve it; please test and reopen it if appropriate

#5 Updated by Neil Robinson - almost 15 years ago

  • Resolution deleted (fixed)
  • Status changed from Closed to Feedback

Opening a large attribute table still fails for me. In fact, if I leave it long enough without killing the qgis process, it hangs my whole system.

Using 1.0.2 on Ubuntu 9.04 -- downloaded from ppa repositories.

Is there some way to get debugging info that I could send through to help with troubleshooting this?

#6 Updated by Paolo Cavallini almost 15 years ago

  • Resolution set to fixed
  • Status changed from Feedback to Closed

The problem should be fixed in 1.1

#7 Updated by Anonymous over 14 years ago

Milestone Version 1.0.2 deleted

Also available in: Atom PDF