id summary reporter owner description type status priority milestone component version severity resolution keywords cc 957 msQueryByAttributes monkey's with a layer's filter causing a segfault hobu sdlime "{{{ I don't know if this is a bug or a feature, but here is what was provoking my problem. I have a layer that has null attributes in it. This layer is in SDE. I have a filter defined to FILTER ""where COUNT_ is not NULL"" to prevent it from querying out values that cause the expression parser to choke. So, once this is done, I want to be able to queryByAttributes from the layer as well. This time, however, I'm querying from the STATE column. When I attempt to do this from mapscript with a layer that already has its FILTER set, a segfault erupts. Am I misusing FILTER's? --------------------------------------------------- Python script that provokes the error: --------------------------------------------------- #!/usr/bin/python import mapscript amap = mapscript.mapObj('/home/hobu/prs/prs.map') counties = amap.getLayerByName(""counties"") qstring = ""UPPER(STATE) = '46'"" qryresult = counties.queryByAttributes(amap,'STATE',qstring,mapscript.MS_MULTIPLE) print 'done' --------------------------------------------------- --------------------------------------------------- Relevant mapfile definition --------------------------------------------------- LAYER NAME counties TYPE POLYGON CONNECTION ""sde.cssm.iastate.edu,port:5151,sde,username,password"" CONNECTIONTYPE sde DATA ""SDEDATA.SDEDATA_counties_noreg,shape,SDE.DEFAULT"" TEMPLATE ""/home/hobu/psudataview/templates/footer.html"" STATUS ON DEBUG ON FILTER ""where COUNT_ is not NULL"" END --------------------------------------------------- --------------------------------------------------- GDB output --------------------------------------------------- 0x00c80343 in strlen () from /lib/tls/libc.so.6 (gdb) bt #0 0x00c80343 in strlen () from /lib/tls/libc.so.6 #1 0x00c80085 in strdup () from /lib/tls/libc.so.6 #2 0x0022a21f in msQueryByAttributes (map=0xb75af008, qlayer=163439776, qitem=0x9b7431c ""STATE"", qstring=0x0, mode=1) at mapquery.c:258 #3 0x001d00de in layerObj_queryByAttributes (self=0x0, map=0x0, qitem=0x0, qstring=0x0, mode=0) at mapscript_wrap.c:1672 #4 0x001ec3d0 in _wrap_layerObj_queryByAttributes (self=0x0, args=0x0) at mapscript_wrap.c:15534 #5 0x080d18e4 in PyCFunction_Call () #6 0x080b3d67 in PyObject_Call () #7 0x0807d0a3 in PyEval_GetFuncDesc () #8 0x0807b031 in PyEval_EvalCode () #9 0x0807b65e in PyEval_EvalCodeEx () #10 0x0807cbbb in PyEval_GetFuncDesc () #11 0x0807ab33 in PyEval_EvalCode () #12 0x0807b65e in PyEval_EvalCodeEx () #13 0x08078555 in PyEval_EvalCode () #14 0x08098569 in PyRun_FileExFlags () #15 0x080974d0 in PyRun_SimpleFileExFlags () #16 0x08096e1a in PyRun_AnyFileExFlags () #17 0x08053ac9 in Py_Main () #18 0x08053519 in main () --------------------------------------------------- }}}" defect closed high MapServer C Library unspecified normal later