QGIS » QGIS Application

(talking about 2.18 here)

WFS and WMS of the same service seem to create different attribute
data-types?

Going to this WFS:

https://geodata.nationaalgeoregister.nl/bag/ows?

there is a layer with 'panden' (houses), which have a column
'identification' which is (should be) a long integer (up to about 15
positions long).

On a WMS GetFeatureInfo request (same url) you will see those id's as
nice long integers/strings:
1598100000022426

BUT if you request the same house in a WFS layer, you will see floats:
1.59810000002243e+15
for example in the attribute table, or if you use the info-tool.

This is a problem if you need that id to create joints/relations.

I had a look into the sqlite file which is created in:
~/.qgis2/cache/wfsprovider/pid_16544
and indeed see this create table sql:

CREATE TABLE 'features' ( "__ogc_fid" INTEGER PRIMARY KEY AUTOINCREMENT,
'identificatie' FLOAT, 'bouwjaar' FLOAT, 'status' VARCHAR,
'gebruiksdoel' VARCHAR, 'oppervlakte_min' FLOAT, 'oppervlakte_max'
FLOAT, 'aantal_verblijfsobjecten' BIGINT, 'actualiteitsdatum' BIGINT,
'__qgis_gen_counter' INTEGER, '__qgis_gmlid' VARCHAR,
'__qgis_hexwkb_geom' VARCHAR, "__spatialite_geometry" POLYGON)

Is this a fixable (hopefully 2.18 only) problem?
As 2.18 will be LTR for some time.