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[TD-2971] <feature>: make python connector support unsigned int. fix None determine.

This commit is contained in:
Shuduo Sang 2021-02-20 02:14:21 +00:00
parent da32a2571e
commit 450bf068f9
5 changed files with 206 additions and 40 deletions
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16
src/connector/python/linux/python2/taos/cinterface.py
View File

@ -67,13 +67,13 @@ def _crow_tinyint_unsigned_to_python(
return [ return [
None if ele == FieldType.C_TINYINT_UNSIGNED_NULL else ele for ele in ctypes.cast( None if ele == FieldType.C_TINYINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER( data, ctypes.POINTER(
ctypes.c_byte))[ ctypes.c_ubyte))[
:abs(num_of_rows)]] :abs(num_of_rows)]]
else: else:
return [ return [
None if ele == FieldType.C_TINYINT_UNSIGNED_NULL else ele for ele in ctypes.cast( None if ele == FieldType.C_TINYINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER( data, ctypes.POINTER(
ctypes.c_byte))[ ctypes.c_ubyte))[
:abs(num_of_rows)]] :abs(num_of_rows)]]
@ -102,13 +102,13 @@ def _crow_smallint_unsigned_to_python(
return [ return [
None if ele == FieldType.C_SMALLINT_UNSIGNED_NULL else ele for ele in ctypes.cast( None if ele == FieldType.C_SMALLINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER( data, ctypes.POINTER(
ctypes.c_short))[ ctypes.c_ushort))[
:abs(num_of_rows)]] :abs(num_of_rows)]]
else: else:
return [ return [
None if ele == FieldType.C_SMALLINT_UNSIGNED_NULL else ele for ele in ctypes.cast( None if ele == FieldType.C_SMALLINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER( data, ctypes.POINTER(
ctypes.c_short))[ ctypes.c_ushort))[
:abs(num_of_rows)]] :abs(num_of_rows)]]
@ -130,13 +130,13 @@ def _crow_int_unsigned_to_python(data, num_of_rows, nbytes=None, micro=False):
return [ return [
None if ele == FieldType.C_INT_UNSIGNED_NULL else ele for ele in ctypes.cast( None if ele == FieldType.C_INT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER( data, ctypes.POINTER(
ctypes.c_int))[ ctypes.c_uint))[
:abs(num_of_rows)]] :abs(num_of_rows)]]
else: else:
return [ return [
None if ele == FieldType.C_INT_UNSIGNED_NULL else ele for ele in ctypes.cast( None if ele == FieldType.C_INT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER( data, ctypes.POINTER(
ctypes.c_int))[ ctypes.c_uint))[
:abs(num_of_rows)]] :abs(num_of_rows)]]
@ -162,13 +162,13 @@ def _crow_bigint_unsigned_to_python(
return [ return [
None if ele == FieldType.C_BIGINT_UNSIGNED_NULL else ele for ele in ctypes.cast( None if ele == FieldType.C_BIGINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER( data, ctypes.POINTER(
ctypes.c_long))[ ctypes.c_ulong))[
:abs(num_of_rows)]] :abs(num_of_rows)]]
else: else:
return [ return [
None if ele == FieldType.C_BIGINT_UNSIGNED_NULL else ele for ele in ctypes.cast( None if ele == FieldType.C_BIGINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER( data, ctypes.POINTER(
ctypes.c_long))[ ctypes.c_ulong))[
:abs(num_of_rows)]] :abs(num_of_rows)]]

18
src/connector/python/linux/python3/taos/cinterface.py
View File

@ -67,13 +67,13 @@ def _crow_tinyint_unsigned_to_python(
return [ return [
None if ele == FieldType.C_TINYINT_UNSIGNED_NULL else ele for ele in ctypes.cast( None if ele == FieldType.C_TINYINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER( data, ctypes.POINTER(
ctypes.c_byte))[ ctypes.c_ubyte))[
:abs(num_of_rows)]] :abs(num_of_rows)]]
else: else:
return [ return [
None if ele == FieldType.C_TINYINT_UNSIGNED_NULL else ele for ele in ctypes.cast( None if ele == FieldType.C_TINYINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER( data, ctypes.POINTER(
ctypes.c_byte))[ ctypes.c_ubyte))[
:abs(num_of_rows)]] :abs(num_of_rows)]]
@ -102,13 +102,13 @@ def _crow_smallint_unsigned_to_python(
return [ return [
None if ele == FieldType.C_SMALLINT_UNSIGNED_NULL else ele for ele in ctypes.cast( None if ele == FieldType.C_SMALLINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER( data, ctypes.POINTER(
ctypes.c_short))[ ctypes.c_ushort))[
:abs(num_of_rows)]] :abs(num_of_rows)]]
else: else:
return [ return [
None if ele == FieldType.C_SMALLINT_UNSIGNED_NULL else ele for ele in ctypes.cast( None if ele == FieldType.C_SMALLINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER( data, ctypes.POINTER(
ctypes.c_short))[ ctypes.c_ushort))[
:abs(num_of_rows)]] :abs(num_of_rows)]]
@ -130,13 +130,13 @@ def _crow_int_unsigned_to_python(data, num_of_rows, nbytes=None, micro=False):
return [ return [
None if ele == FieldType.C_INT_UNSIGNED_NULL else ele for ele in ctypes.cast( None if ele == FieldType.C_INT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER( data, ctypes.POINTER(
ctypes.c_int))[ ctypes.c_uint))[
:abs(num_of_rows)]] :abs(num_of_rows)]]
else: else:
return [ return [
None if ele == FieldType.C_INT_UNSIGNED_NULL else ele for ele in ctypes.cast( None if ele == FieldType.C_INT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER( data, ctypes.POINTER(
ctypes.c_int))[ ctypes.c_uint))[
:abs(num_of_rows)]] :abs(num_of_rows)]]
@ -162,13 +162,13 @@ def _crow_bigint_unsigned_to_python(
return [ return [
None if ele == FieldType.C_BIGINT_UNSIGNED_NULL else ele for ele in ctypes.cast( None if ele == FieldType.C_BIGINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER( data, ctypes.POINTER(
ctypes.c_long))[ ctypes.c_ulong))[
:abs(num_of_rows)]] :abs(num_of_rows)]]
else: else:
return [ return [
None if ele == FieldType.C_BIGINT_UNSIGNED_NULL else ele for ele in ctypes.cast( None if ele == FieldType.C_BIGINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER( data, ctypes.POINTER(
ctypes.c_long))[ ctypes.c_ulong))[
:abs(num_of_rows)]] :abs(num_of_rows)]]
@ -523,7 +523,6 @@ class CTaosInterface(object):
for i in range(len(fields)): for i in range(len(fields)):
data = ctypes.cast(pblock, ctypes.POINTER(ctypes.c_void_p))[i] data = ctypes.cast(pblock, ctypes.POINTER(ctypes.c_void_p))[i]
if fields[i]['type'] not in _CONVERT_FUNC_BLOCK: if fields[i]['type'] not in _CONVERT_FUNC_BLOCK:
print("CBD cinterface.py LN526")
raise DatabaseError("Invalid data type returned from database") raise DatabaseError("Invalid data type returned from database")
blocks[i] = _CONVERT_FUNC_BLOCK[fields[i]['type']]( blocks[i] = _CONVERT_FUNC_BLOCK[fields[i]['type']](
data, num_of_rows, fieldLen[i], isMicro) data, num_of_rows, fieldLen[i], isMicro)
@ -548,7 +547,6 @@ class CTaosInterface(object):
for i in range(len(fields)): for i in range(len(fields)):
data = ctypes.cast(pblock, ctypes.POINTER(ctypes.c_void_p))[i] data = ctypes.cast(pblock, ctypes.POINTER(ctypes.c_void_p))[i]
if fields[i]['type'] not in _CONVERT_FUNC: if fields[i]['type'] not in _CONVERT_FUNC:
print("CBD cinterface.py LN551")
raise DatabaseError( raise DatabaseError(
"Invalid data type returned from database") "Invalid data type returned from database")
if data is None: if data is None:

16
src/connector/python/osx/python3/taos/cinterface.py
View File

@ -67,13 +67,13 @@ def _crow_tinyint_unsigned_to_python(
return [ return [
None if ele == FieldType.C_TINYINT_UNSIGNED_NULL else ele for ele in ctypes.cast( None if ele == FieldType.C_TINYINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER( data, ctypes.POINTER(
ctypes.c_byte))[ ctypes.c_ubyte))[
:abs(num_of_rows)]] :abs(num_of_rows)]]
else: else:
return [ return [
None if ele == FieldType.C_TINYINT_UNSIGNED_NULL else ele for ele in ctypes.cast( None if ele == FieldType.C_TINYINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER( data, ctypes.POINTER(
ctypes.c_byte))[ ctypes.c_ubyte))[
:abs(num_of_rows)]] :abs(num_of_rows)]]
@ -102,13 +102,13 @@ def _crow_smallint_unsigned_to_python(
return [ return [
None if ele == FieldType.C_SMALLINT_UNSIGNED_NULL else ele for ele in ctypes.cast( None if ele == FieldType.C_SMALLINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER( data, ctypes.POINTER(
ctypes.c_short))[ ctypes.c_ushort))[
:abs(num_of_rows)]] :abs(num_of_rows)]]
else: else:
return [ return [
None if ele == FieldType.C_SMALLINT_UNSIGNED_NULL else ele for ele in ctypes.cast( None if ele == FieldType.C_SMALLINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER( data, ctypes.POINTER(
ctypes.c_short))[ ctypes.c_ushort))[
:abs(num_of_rows)]] :abs(num_of_rows)]]
@ -130,13 +130,13 @@ def _crow_int_unsigned_to_python(data, num_of_rows, nbytes=None, micro=False):
return [ return [
None if ele == FieldType.C_INT_UNSIGNED_NULL else ele for ele in ctypes.cast( None if ele == FieldType.C_INT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER( data, ctypes.POINTER(
ctypes.c_int))[ ctypes.c_uint))[
:abs(num_of_rows)]] :abs(num_of_rows)]]
else: else:
return [ return [
None if ele == FieldType.C_INT_UNSIGNED_NULL else ele for ele in ctypes.cast( None if ele == FieldType.C_INT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER( data, ctypes.POINTER(
ctypes.c_int))[ ctypes.c_uint))[
:abs(num_of_rows)]] :abs(num_of_rows)]]
@ -162,13 +162,13 @@ def _crow_bigint_unsigned_to_python(
return [ return [
None if ele == FieldType.C_BIGINT_UNSIGNED_NULL else ele for ele in ctypes.cast( None if ele == FieldType.C_BIGINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER( data, ctypes.POINTER(
ctypes.c_long))[ ctypes.c_ulong))[
:abs(num_of_rows)]] :abs(num_of_rows)]]
else: else:
return [ return [
None if ele == FieldType.C_BIGINT_UNSIGNED_NULL else ele for ele in ctypes.cast( None if ele == FieldType.C_BIGINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER( data, ctypes.POINTER(
ctypes.c_long))[ ctypes.c_ulong))[
:abs(num_of_rows)]] :abs(num_of_rows)]]

97
src/connector/python/windows/python2/taos/cinterface.py
View File

@ -22,10 +22,10 @@ def _crow_timestamp_to_python(data, num_of_rows, nbytes=None, micro=False):
if num_of_rows > 0: if num_of_rows > 0:
return list(map(_timestamp_converter, ctypes.cast( return list(map(_timestamp_converter, ctypes.cast(
data, ctypes.POINTER(ctypes.c_longlong))[:abs(num_of_rows)])) data, ctypes.POINTER(ctypes.c_long))[:abs(num_of_rows)]))
else: else:
return list(map(_timestamp_converter, ctypes.cast( return list(map(_timestamp_converter, ctypes.cast(
data, ctypes.POINTER(ctypes.c_longlong))[:abs(num_of_rows)])) data, ctypes.POINTER(ctypes.c_long))[:abs(num_of_rows)]))
def _crow_bool_to_python(data, num_of_rows, nbytes=None, micro=False): def _crow_bool_to_python(data, num_of_rows, nbytes=None, micro=False):
@ -56,6 +56,27 @@ def _crow_tinyint_to_python(data, num_of_rows, nbytes=None, micro=False):
data, ctypes.POINTER(ctypes.c_byte))[:abs(num_of_rows)]] data, ctypes.POINTER(ctypes.c_byte))[:abs(num_of_rows)]]
def _crow_tinyint_unsigned_to_python(
data,
num_of_rows,
nbytes=None,
micro=False):
"""Function to convert C tinyint row to python row
"""
if num_of_rows > 0:
return [
None if ele == FieldType.C_TINYINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER(
ctypes.c_ubyte))[
:abs(num_of_rows)]]
else:
return [
None if ele == FieldType.C_TINYINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER(
ctypes.c_ubyte))[
:abs(num_of_rows)]]
def _crow_smallint_to_python(data, num_of_rows, nbytes=None, micro=False): def _crow_smallint_to_python(data, num_of_rows, nbytes=None, micro=False):
"""Function to convert C smallint row to python row """Function to convert C smallint row to python row
""" """
@ -73,6 +94,24 @@ def _crow_smallint_to_python(data, num_of_rows, nbytes=None, micro=False):
:abs(num_of_rows)]] :abs(num_of_rows)]]
def _crow_smallint_unsigned_to_python(
data, num_of_rows, nbytes=None, micro=False):
"""Function to convert C smallint row to python row
"""
if num_of_rows > 0:
return [
None if ele == FieldType.C_SMALLINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER(
ctypes.c_ushort))[
:abs(num_of_rows)]]
else:
return [
None if ele == FieldType.C_SMALLINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER(
ctypes.c_ushort))[
:abs(num_of_rows)]]
def _crow_int_to_python(data, num_of_rows, nbytes=None, micro=False): def _crow_int_to_python(data, num_of_rows, nbytes=None, micro=False):
"""Function to convert C int row to python row """Function to convert C int row to python row
""" """
@ -84,15 +123,53 @@ def _crow_int_to_python(data, num_of_rows, nbytes=None, micro=False):
data, ctypes.POINTER(ctypes.c_int))[:abs(num_of_rows)]] data, ctypes.POINTER(ctypes.c_int))[:abs(num_of_rows)]]
def _crow_int_unsigned_to_python(data, num_of_rows, nbytes=None, micro=False):
"""Function to convert C int row to python row
"""
if num_of_rows > 0:
return [
None if ele == FieldType.C_INT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER(
ctypes.c_uint))[
:abs(num_of_rows)]]
else:
return [
None if ele == FieldType.C_INT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER(
ctypes.c_uint))[
:abs(num_of_rows)]]
def _crow_bigint_to_python(data, num_of_rows, nbytes=None, micro=False): def _crow_bigint_to_python(data, num_of_rows, nbytes=None, micro=False):
"""Function to convert C bigint row to python row """Function to convert C bigint row to python row
""" """
if num_of_rows > 0: if num_of_rows > 0:
return [None if ele == FieldType.C_BIGINT_NULL else ele for ele in ctypes.cast( return [None if ele == FieldType.C_BIGINT_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER(ctypes.c_longlong))[:abs(num_of_rows)]] data, ctypes.POINTER(ctypes.c_long))[:abs(num_of_rows)]]
else: else:
return [None if ele == FieldType.C_BIGINT_NULL else ele for ele in ctypes.cast( return [None if ele == FieldType.C_BIGINT_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER(ctypes.c_longlong))[:abs(num_of_rows)]] data, ctypes.POINTER(ctypes.c_long))[:abs(num_of_rows)]]
def _crow_bigint_unsigned_to_python(
data,
num_of_rows,
nbytes=None,
micro=False):
"""Function to convert C bigint row to python row
"""
if num_of_rows > 0:
return [
None if ele == FieldType.C_BIGINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER(
ctypes.c_ulong))[
:abs(num_of_rows)]]
else:
return [
None if ele == FieldType.C_BIGINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER(
ctypes.c_ulong))[
:abs(num_of_rows)]]
def _crow_float_to_python(data, num_of_rows, nbytes=None, micro=False): def _crow_float_to_python(data, num_of_rows, nbytes=None, micro=False):
@ -212,7 +289,11 @@ _CONVERT_FUNC = {
FieldType.C_DOUBLE: _crow_double_to_python, FieldType.C_DOUBLE: _crow_double_to_python,
FieldType.C_BINARY: _crow_binary_to_python, FieldType.C_BINARY: _crow_binary_to_python,
FieldType.C_TIMESTAMP: _crow_timestamp_to_python, FieldType.C_TIMESTAMP: _crow_timestamp_to_python,
FieldType.C_NCHAR: _crow_nchar_to_python FieldType.C_NCHAR: _crow_nchar_to_python,
FieldType.C_TINYINT_UNSIGNED: _crow_tinyint_unsigned_to_python,
FieldType.C_SMALLINT_UNSIGNED: _crow_smallint_unsigned_to_python,
FieldType.C_INT_UNSIGNED: _crow_int_unsigned_to_python,
FieldType.C_BIGINT_UNSIGNED: _crow_bigint_unsigned_to_python
} }
_CONVERT_FUNC_BLOCK = { _CONVERT_FUNC_BLOCK = {
@ -225,7 +306,11 @@ _CONVERT_FUNC_BLOCK = {
FieldType.C_DOUBLE: _crow_double_to_python, FieldType.C_DOUBLE: _crow_double_to_python,
FieldType.C_BINARY: _crow_binary_to_python_block, FieldType.C_BINARY: _crow_binary_to_python_block,
FieldType.C_TIMESTAMP: _crow_timestamp_to_python, FieldType.C_TIMESTAMP: _crow_timestamp_to_python,
FieldType.C_NCHAR: _crow_nchar_to_python_block FieldType.C_NCHAR: _crow_nchar_to_python_block,
FieldType.C_TINYINT_UNSIGNED: _crow_tinyint_unsigned_to_python,
FieldType.C_SMALLINT_UNSIGNED: _crow_smallint_unsigned_to_python,
FieldType.C_INT_UNSIGNED: _crow_int_unsigned_to_python,
FieldType.C_BIGINT_UNSIGNED: _crow_bigint_unsigned_to_python
} }
# Corresponding TAOS_FIELD structure in C # Corresponding TAOS_FIELD structure in C

99
src/connector/python/windows/python3/taos/cinterface.py
View File

@ -22,10 +22,10 @@ def _crow_timestamp_to_python(data, num_of_rows, nbytes=None, micro=False):
if num_of_rows > 0: if num_of_rows > 0:
return list(map(_timestamp_converter, ctypes.cast( return list(map(_timestamp_converter, ctypes.cast(
data, ctypes.POINTER(ctypes.c_longlong))[:abs(num_of_rows)])) data, ctypes.POINTER(ctypes.c_long))[:abs(num_of_rows)]))
else: else:
return list(map(_timestamp_converter, ctypes.cast( return list(map(_timestamp_converter, ctypes.cast(
data, ctypes.POINTER(ctypes.c_longlong))[:abs(num_of_rows)])) data, ctypes.POINTER(ctypes.c_long))[:abs(num_of_rows)]))
def _crow_bool_to_python(data, num_of_rows, nbytes=None, micro=False): def _crow_bool_to_python(data, num_of_rows, nbytes=None, micro=False):
@ -56,6 +56,27 @@ def _crow_tinyint_to_python(data, num_of_rows, nbytes=None, micro=False):
data, ctypes.POINTER(ctypes.c_byte))[:abs(num_of_rows)]] data, ctypes.POINTER(ctypes.c_byte))[:abs(num_of_rows)]]
def _crow_tinyint_unsigned_to_python(
data,
num_of_rows,
nbytes=None,
micro=False):
"""Function to convert C tinyint row to python row
"""
if num_of_rows > 0:
return [
None if ele == FieldType.C_TINYINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER(
ctypes.c_ubyte))[
:abs(num_of_rows)]]
else:
return [
None if ele == FieldType.C_TINYINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER(
ctypes.c_ubyte))[
:abs(num_of_rows)]]
def _crow_smallint_to_python(data, num_of_rows, nbytes=None, micro=False): def _crow_smallint_to_python(data, num_of_rows, nbytes=None, micro=False):
"""Function to convert C smallint row to python row """Function to convert C smallint row to python row
""" """
@ -73,6 +94,24 @@ def _crow_smallint_to_python(data, num_of_rows, nbytes=None, micro=False):
:abs(num_of_rows)]] :abs(num_of_rows)]]
def _crow_smallint_unsigned_to_python(
data, num_of_rows, nbytes=None, micro=False):
"""Function to convert C smallint row to python row
"""
if num_of_rows > 0:
return [
None if ele == FieldType.C_SMALLINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER(
ctypes.c_ushort))[
:abs(num_of_rows)]]
else:
return [
None if ele == FieldType.C_SMALLINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER(
ctypes.c_ushort))[
:abs(num_of_rows)]]
def _crow_int_to_python(data, num_of_rows, nbytes=None, micro=False): def _crow_int_to_python(data, num_of_rows, nbytes=None, micro=False):
"""Function to convert C int row to python row """Function to convert C int row to python row
""" """
@ -84,15 +123,53 @@ def _crow_int_to_python(data, num_of_rows, nbytes=None, micro=False):
data, ctypes.POINTER(ctypes.c_int))[:abs(num_of_rows)]] data, ctypes.POINTER(ctypes.c_int))[:abs(num_of_rows)]]
def _crow_int_unsigned_to_python(data, num_of_rows, nbytes=None, micro=False):
"""Function to convert C int row to python row
"""
if num_of_rows > 0:
return [
None if ele == FieldType.C_INT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER(
ctypes.c_uint))[
:abs(num_of_rows)]]
else:
return [
None if ele == FieldType.C_INT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER(
ctypes.c_uint))[
:abs(num_of_rows)]]
def _crow_bigint_to_python(data, num_of_rows, nbytes=None, micro=False): def _crow_bigint_to_python(data, num_of_rows, nbytes=None, micro=False):
"""Function to convert C bigint row to python row """Function to convert C bigint row to python row
""" """
if num_of_rows > 0: if num_of_rows > 0:
return [None if ele == FieldType.C_BIGINT_NULL else ele for ele in ctypes.cast( return [None if ele == FieldType.C_BIGINT_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER(ctypes.c_longlong))[:abs(num_of_rows)]] data, ctypes.POINTER(ctypes.c_long))[:abs(num_of_rows)]]
else: else:
return [None if ele == FieldType.C_BIGINT_NULL else ele for ele in ctypes.cast( return [None if ele == FieldType.C_BIGINT_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER(ctypes.c_longlong))[:abs(num_of_rows)]] data, ctypes.POINTER(ctypes.c_long))[:abs(num_of_rows)]]
def _crow_bigint_unsigned_to_python(
data,
num_of_rows,
nbytes=None,
micro=False):
"""Function to convert C bigint row to python row
"""
if num_of_rows > 0:
return [
None if ele == FieldType.C_BIGINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER(
ctypes.c_ulong))[
:abs(num_of_rows)]]
else:
return [
None if ele == FieldType.C_BIGINT_UNSIGNED_NULL else ele for ele in ctypes.cast(
data, ctypes.POINTER(
ctypes.c_ulong))[
:abs(num_of_rows)]]
def _crow_float_to_python(data, num_of_rows, nbytes=None, micro=False): def _crow_float_to_python(data, num_of_rows, nbytes=None, micro=False):
@ -133,9 +210,7 @@ def _crow_nchar_to_python(data, num_of_rows, nbytes=None, micro=False):
"""Function to convert C nchar row to python row """Function to convert C nchar row to python row
""" """
assert(nbytes is not None) assert(nbytes is not None)
res = [] res = []
for i in range(abs(num_of_rows)): for i in range(abs(num_of_rows)):
try: try:
if num_of_rows >= 0: if num_of_rows >= 0:
@ -214,7 +289,11 @@ _CONVERT_FUNC = {
FieldType.C_DOUBLE: _crow_double_to_python, FieldType.C_DOUBLE: _crow_double_to_python,
FieldType.C_BINARY: _crow_binary_to_python, FieldType.C_BINARY: _crow_binary_to_python,
FieldType.C_TIMESTAMP: _crow_timestamp_to_python, FieldType.C_TIMESTAMP: _crow_timestamp_to_python,
FieldType.C_NCHAR: _crow_nchar_to_python FieldType.C_NCHAR: _crow_nchar_to_python,
FieldType.C_TINYINT_UNSIGNED: _crow_tinyint_unsigned_to_python,
FieldType.C_SMALLINT_UNSIGNED: _crow_smallint_unsigned_to_python,
FieldType.C_INT_UNSIGNED: _crow_int_unsigned_to_python,
FieldType.C_BIGINT_UNSIGNED: _crow_bigint_unsigned_to_python
} }
_CONVERT_FUNC_BLOCK = { _CONVERT_FUNC_BLOCK = {
@ -227,7 +306,11 @@ _CONVERT_FUNC_BLOCK = {
FieldType.C_DOUBLE: _crow_double_to_python, FieldType.C_DOUBLE: _crow_double_to_python,
FieldType.C_BINARY: _crow_binary_to_python_block, FieldType.C_BINARY: _crow_binary_to_python_block,
FieldType.C_TIMESTAMP: _crow_timestamp_to_python, FieldType.C_TIMESTAMP: _crow_timestamp_to_python,
FieldType.C_NCHAR: _crow_nchar_to_python_block FieldType.C_NCHAR: _crow_nchar_to_python_block,
FieldType.C_TINYINT_UNSIGNED: _crow_tinyint_unsigned_to_python,
FieldType.C_SMALLINT_UNSIGNED: _crow_smallint_unsigned_to_python,
FieldType.C_INT_UNSIGNED: _crow_int_unsigned_to_python,
FieldType.C_BIGINT_UNSIGNED: _crow_bigint_unsigned_to_python
} }
# Corresponding TAOS_FIELD structure in C # Corresponding TAOS_FIELD structure in C