I have a road network table. When I check
st_isValid(the_geom)='f', I am getting an error:
NOTICE: IllegalArgumentException: point array must contain 0 or >1 elements
ERROR: Exception in LWGEOM2GEOS
When I open this table in QGIS, I can view and edit the data. However, its attribute table is blank, while in PostGIS, the table has data.
What is the problem?