[QGIS Commit] [qgis/Quantum-GIS] 794907: [BACKPORT] fix #4089

[noreply at github.com]

  Branch: refs/heads/master
  Home:   https://github.com/qgis/Quantum-GIS

  Commit: 794907cbe0a69fcb2a29af4b66e5b5a455c84994
      https://github.com/qgis/Quantum-GIS/commit/794907cbe0a69fcb2a29af4b66e5b5a455c84994
  Author: Juergen E. Fischer <jef at norbit.de>
  Date:   2011-07-15 (Fri, 15 Jul 2011)

  Changed paths:
    M src/gui/qgsfieldvalidator.cpp
  M src/providers/postgres/qgspostgresprovider.cpp

  Log Message:
  -----------
  [BACKPORT] fix #4089
- postgres provider: fix detection of field length and precision for char and numeric fields.
- attribute editor: fix validation in case the field length is unknown