Resolve MemoryError exception on Windows when using an output type handler

(#330).

Author: anthony-tuininga

doc/src/conf.py

@@ -42,7 +42,7 @@
 # The short X.Y version.
 version = '7.2'
 # The full version, including alpha/beta/rc tags.
-release = '7.2.0'
+release = '7.2.1'
 
 # There are two options for replacing |today|: either, you set today to some
 # non-false value, then it is used:

setup.py

@@ -20,7 +20,7 @@
     from distutils.extension import Extension
 
 # define build constants
-BUILD_VERSION = "7.2.0"
+BUILD_VERSION = "7.2.1"
 
 # setup extra link and compile args
 extraLinkArgs = []

src/cxoCursor.c

@@ -414,7 +414,7 @@ static int cxoCursor_performDefine(cxoCursor *cursor, uint32_t numQueryColumns)
         // if using an output type handler, None implies default behavior
         if (outputTypeHandler) {
             result = PyObject_CallFunction(outputTypeHandler, "Os#Oiii",
-                    cursor, queryInfo.name, queryInfo.nameLength,
+                    cursor, queryInfo.name, (Py_ssize_t) queryInfo.nameLength,
                     varType->pythonType, size, queryInfo.typeInfo.precision,
                     queryInfo.typeInfo.scale);
             if (!result) {