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Tidy up error reporting when converting PL/Python arrays.

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Use PLy_elog() only when a call to a Python C API function failed, and
ereport() for other errors. Add an error code to the "wrong length of
inner sequence" ereport().

Reviewed-by: Daniel Gustafsson
Discussion: https://www.postgresql.org/message-id/B8B72889-D6D7-48FF-B782-D670A6CA4D37%40yesql.se
This commit is contained in:
Heikki Linnakangas 2020-10-02 18:23:39 +03:00
parent 8550cbd0ba
commit 26b8361518
1 changed files with 15 additions and 5 deletions
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20
src/pl/plpython/plpy_typeio.c
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@ -1173,18 +1173,25 @@ PLySequence_ToArray(PLyObToDatum *arg, PyObject *plrv,
break;
if (ndim == MAXDIM)
PLy_elog(ERROR, "number of array dimensions exceeds the maximum allowed (%d)", MAXDIM);
ereport(ERROR,
(errcode(ERRCODE_PROGRAM_LIMIT_EXCEEDED),
errmsg("number of array dimensions exceeds the maximum allowed (%d)",
MAXDIM)));
dims[ndim] = PySequence_Length(pyptr);
if (dims[ndim] < 0)
PLy_elog(ERROR, "could not determine sequence length for function return value");
if (dims[ndim] > MaxAllocSize)
PLy_elog(ERROR, "array size exceeds the maximum allowed");
ereport(ERROR,
(errcode(ERRCODE_PROGRAM_LIMIT_EXCEEDED),
errmsg("array size exceeds the maximum allowed")));
len *= dims[ndim];
if (len > MaxAllocSize)
PLy_elog(ERROR, "array size exceeds the maximum allowed");
ereport(ERROR,
(errcode(ERRCODE_PROGRAM_LIMIT_EXCEEDED),
errmsg("array size exceeds the maximum allowed")));
if (dims[ndim] == 0)
{
@ -1210,7 +1217,9 @@ PLySequence_ToArray(PLyObToDatum *arg, PyObject *plrv,
if (ndim == 0)
{
if (!PySequence_Check(plrv))
PLy_elog(ERROR, "return value of function with array return type is not a Python sequence");
ereport(ERROR,
(errcode(ERRCODE_DATATYPE_MISMATCH),
errmsg("return value of function with array return type is not a Python sequence")));
ndim = 1;
len = dims[0] = PySequence_Length(plrv);
@ -1256,7 +1265,8 @@ PLySequence_ToArray_recurse(PLyObToDatum *elm, PyObject *list,
if (PySequence_Length(list) != dims[dim])
ereport(ERROR,
(errmsg("wrong length of inner sequence: has length %d, but %d was expected",
(errcode(ERRCODE_ARRAY_SUBSCRIPT_ERROR),
errmsg("wrong length of inner sequence: has length %d, but %d was expected",
(int) PySequence_Length(list), dims[dim]),
(errdetail("To construct a multidimensional array, the inner sequences must all have the same length."))));