Post-rebase change

libtiledbsoma/src/utils/arrow_adapter.cc

@@ -191,6 +191,13 @@ std::unique_ptr<ArrowSchema> ArrowAdapter::arrow_schema_from_tiledb_array(
       auto dict = (ArrowSchema *)malloc(sizeof(ArrowSchema));
       dict->format =
           strdup(ArrowAdapter::to_arrow_format(enmr.type(), false).data());
+      if (enmr.type() == TILEDB_STRING_ASCII or
+          enmr.type() == TILEDB_CHAR) {
+          dict->format = strdup("z");
+      } else {
+          dict->format = strdup(
+              ArrowAdapter::to_arrow_format(enmr.type(), false).data());
+      }
       dict->name = strdup(enmr.name().c_str());
       dict->metadata = nullptr;
       dict->flags = 0;
@@ -409,7 +416,7 @@ ArrowAdapter::to_arrow(std::shared_ptr<ColumnBuffer> column) {
     exitIfError(ArrowArrayInitFromType(dict_arr, dnatype), "Bad array init");
     exitIfError(ArrowArrayAllocateChildren(dict_arr, 0),
                 "Bad array children alloc");
-    const int n_buf = strcmp(dict_sch->format, "u") == 0 ? 3 : 2;
+    const int n_buf = ArrowAdapter::_isstr(dict_sch->format) == 0 ? 3 : 2;
     dict_arr->buffers = (const void **)malloc(sizeof(void *) * n_buf);
     dict_arr->buffers[0] = nullptr; // validity: none here
     dict_arr->release = &release_array;
@@ -424,7 +431,8 @@ ArrowAdapter::to_arrow(std::shared_ptr<ColumnBuffer> column) {
     // returns std::optional where std::nullopt indicates the
     // column does not contain enumerated values.
     if (enmr->type() == TILEDB_STRING_ASCII or
-        enmr->type() == TILEDB_STRING_UTF8) {
+        enmr->type() == TILEDB_STRING_UTF8 or
+        enmr->type() == TILEDB_CHAR) {
       auto dict_vec = enmr->as_vector<std::string>();
       column->convert_enumeration();
       dict_arr->buffers[1] = column->enum_offsets().data();