Bug report #13183
QGIS Version 2.10 32bit: using Spatialite database table with multiple primary keys.
|Affected QGIS version:||2.10.1||Regression?:||No|
|Operating System:||Easy fix?:||No|
|Pull Request or Patch supplied:||No||Resolution:||end of life|
|Crashes QGIS or corrupts data:||No||Copied to github as #:||21245|
When linking a Spatialite database table with two columns as primary key to QGIS 2.10, strange things happen.
Adding a record(s) using "add feature" in editing mode, it enters 'ERROR' in the fields that were added. After saving and reloading the table, the new records are no longer null.
Adding a column using "new column" in editing mode, all the record fields change to 'ERROR' except for the first record. After saving the table, all the records disappear. Closing and reopening the table brings them all back, including the new column.
It also has python code issues using dataProvider() to access records.
After reviewing bug report 8636, I changed the primary key fields to TEXT type, but this didn't make a difference.
To test this I used a new spatialite database (test.sqlite) and adding a single table (testPrimaryKeys) with three fields (id1, id2, field).
#1 Updated by Jukka Rahkonen about 6 years ago
I can reproduce the behaviour. For example, adding a new record shows just ERRORs in QGIS but having a look at the database with spatialite-gui once the changes have been saved shows that a new row was inserted right.
However, I think that using composite primary keys in GIS context is a bad idea, at least if system should support also inserts. So should the fix be to make QGIS to accept such layers just as read-only? Or perhaps mention the limitation in the documentation.
#4 Updated by Giovanni Manghi over 2 years ago
- Resolution set to end of life
- Status changed from Open to Closed
End of life notice: QGIS 2.18 LTR
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