Bug report #15076
Create table dialog lists useless data types for SpatiaLite
| Status: | Closed | ||
|---|---|---|---|
| Priority: | Normal | ||
| Assignee: | - | ||
| Category: | DB Manager | ||
| Affected QGIS version: | 2.14.3 | 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 #: | 23019 |
Description
For SpatiaLite the create table dialog should only list the data types integer, text, real and numeric.
See also: http://www.sqlite.com/datatype3.html (3.2. Affinity Name Examples)
History
#1
Updated by R. R. over 8 years ago
- File spatialite_edit_table.png added
#2
Updated by Jukka Rahkonen over 8 years ago
I am not sure about this. While SQLite internally has only few datatypes it is still possible to create a column for example as
ALTER TABLE "foo"
ADD COLUMN "bar" varchar(20);
Now command PRAGMA table_info('foo') will show
bar varchar(20) 0 NULL 0
Even is is possible to store almost anything into "bar" the applications can still check the PRAGMA and get to know that they are supposed to save varchar(20) data into that column. Also, a roundtrip from for example PostGIS into SpatiaLite and back have better possibilities to be successful if datatypes are copied.
Compare also with GeoPackage which defines all these datatypes:
BOOLEAN, TINYINT, SMALLINT, MEDIUMINT, INT or INTEGER, FLOAT, DOUBLE or REAL, TEXT{(maxchar_count)}, BLOB{(max_size)}, <geometry_type_name>, DATE, DATETIME.
I consider this is not a bug.
I am not a QGIS developer, but some developers in some other projects which I know appreciate if things are first discussed on the mailing list and bug tickets are created only for issues which are recognized as bugs. Mailing lists are also followed by more people than issue trackers and those people may enjoy the discussion and learn something by the same.
#3
Updated by R. R. over 8 years ago
Hi Jukka, the 'New SpatiaLite Layer' dialog only lists the data types 'Text data', 'Whole number' and 'Decimal number' (see attachment). To me this looks like an inconsistency between the 'Manage Layers Toolbar' and the 'DB Manager'. As mentioned PostGIS and SpatiaLite differ in some points, but the design of the dialog windows in the 'DB-Manager' is almost identical.
#4
Updated by R. R. over 8 years ago
Jukka Rahkonen wrote:
I am not a QGIS developer, but some developers in some other projects which I know appreciate if things are first discussed on the mailing list and bug tickets are created only for issues which are recognized as bugs. Mailing lists are also followed by more people than issue trackers and those people may enjoy the discussion and learn something by the same.
I agree with that. There is a need for discussion about the SpatiaLite implementation in the 'DB Manager' .
#15082 SpatiaLite index issue
#15079 New PostGIS/SpatiaLite table - Inconsistent behavior of primary keys
Unfortunately I'm not a member of the mailing list at the moment.
#5
Updated by R. R. over 8 years ago
- File add_field_attribute_table.png added
The 'Add field' dialog (Attribute table/New field) lists the data types 'Binary object (BLOB)', 'Text', 'Decimal number (double)' and 'Whole number (integer)'.
#6
Updated by Giovanni Manghi over 7 years ago
- Regression? set to No
- Easy fix? set to No
#7
Updated by Giovanni Manghi over 5 years ago
- Resolution set to end of life
- Status changed from Open to Closed
End of life notice: QGIS 2.18 LTR
Source:
http://blog.qgis.org/2019/03/09/end-of-life-notice-qgis-2-18-ltr/
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