Use OGR_F_GetFieldAsISO8601DateTime for GDAL >= 3.7

ogr_fdw.c

@@ -1953,14 +1953,14 @@ ogrFeatureToSlot(const OGRFeatureH feat, TupleTableSlot* slot, const OgrFdwExecS
 				case OFTTime:
 				case OFTDateTime:
 				{
+#if (GDAL_VERSION_NUM < GDAL_COMPUTE_VERSION(3,7,0))
 					/*
 					 * OGR date/times have a weird access method, so we use that to pull
 					 * out the raw data and turn it into a string for PgSQL's (very
 					 * sophisticated) date/time parsing routines to handle.
 					 */
 					int year, month, day, hour, minute, second, tz;
 					char cstr[256];
-
 					OGR_F_GetFieldAsDateTime(feat, ogrfldnum,
 					                         &year, &month, &day,
 					                         &hour, &minute, &second, &tz);
@@ -1977,6 +1977,9 @@ ogrFeatureToSlot(const OGRFeatureH feat, TupleTableSlot* slot, const OgrFdwExecS
 					{
 						snprintf(cstr, 256, "%d-%02d-%02d %02d:%02d:%02d", year, month, day, hour, minute, second);
 					}
+#else
+					const char* cstr = OGR_F_GetFieldAsISO8601DateTime(feat, ogrfldnum, NULL);
+#endif
 					nulls[i] = false;
 					values[i] = pgDatumFromCString(cstr, pgtype, pgtypmod, pginputfunc);
 					break;