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Add transforms feature

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This provides a mechanism for specifying conversions between SQL data
types and procedural languages.  As examples, there are transforms
for hstore and ltree for PL/Perl and PL/Python.

reviews by Pavel Stěhule and Andres Freund
This commit is contained in:
Peter Eisentraut
2015-04-26 10:33:14 -04:00
parent f320cbb615
commit cac7658205
101 changed files with 6034 additions and 2811 deletions
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21
src/pl/plpython/plpy_util.c
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@ -142,19 +142,30 @@ PLyUnicode_AsString(PyObject *unicode)
* unicode object. Reference ownership is passed to the caller.
*/
PyObject *
PLyUnicode_FromString(const char *s)
PLyUnicode_FromStringAndSize(const char *s, Py_ssize_t size)
{
char *utf8string;
PyObject *o;
utf8string = pg_server_to_any(s, strlen(s), PG_UTF8);
utf8string = pg_server_to_any(s, size, PG_UTF8);
o = PyUnicode_FromString(utf8string);
if (utf8string != s)
if (utf8string == s)
{
o = PyUnicode_FromStringAndSize(s, size);
}
else
{
o = PyUnicode_FromString(utf8string);
pfree(utf8string);
}
return o;
}
PyObject *
PLyUnicode_FromString(const char *s)
{
return PLyUnicode_FromStringAndSize(s, strlen(s));
}
#endif /* PY_MAJOR_VERSION >= 3 */