def _pq_fetch_tuples(self):
with self._conn._lock:
self._nfields = libpq.PQnfields(self._pgres)
self._no_tuples = False
description = []
casts = []
fast_parsers = []
for i in xrange(self._nfields):
ftype = libpq.PQftype(self._pgres, i)
fsize = libpq.PQfsize(self._pgres, i)
fmod = libpq.PQfmod(self._pgres, i)
if fmod > 0:
fmod -= 4 # TODO: sizeof(int)
if fsize == -1:
if ftype == 1700: # NUMERIC
isize = fmod >> 16
else:
isize = fmod
else:
isize = fsize
if ftype == 1700:
prec = (fmod >> 16) & 0xFFFF
scale = fmod & 0xFFFF
else:
prec = scale = None
casts.append(self._get_cast(ftype))
description.append(Column(
name=ffi.string(libpq.PQfname(self._pgres, i))\
.decode(self._conn._py_enc),
type_code=ftype,
display_size=None,
internal_size=isize,
precision=prec,
scale=scale,
null_ok=None,
))
fast_parser = None
if is_32bits:
# disable all fast parsers to avoid portability problems
pass
elif ftype == 21 or ftype == 23:
fast_parser = libpq.PQEgetint
elif ftype == 20:
fast_parser = libpq.PQEgetlong
elif ftype == 700:
fast_parser = libpq.PQEgetfloat
elif ftype == 701:
fast_parser = libpq.PQEgetdouble
fast_parsers.append(fast_parser)
self._description = tuple(description)
self._casts = casts
self._fast_parsers = fast_parsers
def _pq_fetch_tuples(self):
with self._conn._lock:
self._nfields = libpq.PQnfields(self._pgres)
self._no_tuples = False
description = []
casts = []
for i in xrange(self._nfields):
ftype = libpq.PQftype(self._pgres, i)
fsize = libpq.PQfsize(self._pgres, i)
fmod = libpq.PQfmod(self._pgres, i)
if fmod > 0:
fmod -= 4 # TODO: sizeof(int)
if fsize == -1:
if ftype == 1700: # NUMERIC
isize = fmod >> 16
else:
isize = fmod
else:
isize = fsize
if ftype == 1700:
prec = (fmod >> 16) & 0xFFFF
scale = fmod & 0xFFFF
else:
prec = scale = None
casts.append(self._get_cast(ftype))
description.append(Column(
name=ffi.string(libpq.PQfname(self._pgres, i)),
type_code=ftype,
display_size=None,
internal_size=isize,
precision=prec,
scale=scale,
null_ok=None,
))
self._description = tuple(description)
self._casts = casts