external-table/src/pxffilters.c
fdw/pxf_filter.c

external-table/src/libchurl.c
fdw/libchurl.c

external-table/src/pxffilters.h
fdw/pxf_filter.h

external-table/src/libchurl.h
fdw/libchurl.h

external-table/src/pxfheaders.c
fdw/pxf_header.c

external-table/src/pxfutils.c
fdw/pxf_header.c