diff --git a/test/Wikiq_Unit_Test.py b/test/Wikiq_Unit_Test.py
index 106b663..f68ef0c 100644
--- a/test/Wikiq_Unit_Test.py
+++ b/test/Wikiq_Unit_Test.py
@@ -364,7 +364,7 @@ class WikiqTestCase(unittest.TestCase):
         baseline['date_time'] = pd.to_datetime(baseline['date_time'])
         # Split strings to the arrays of reverted IDs so they can be compared.
         baseline['revert'] = baseline['revert'].replace(np.nan, None)
-        baseline['reverteds'] = [None if i is np.nan else [int(j) for j in str(i).split(",")] for i in baseline['reverteds']]
+        # baseline['reverteds'] = [None if i is np.nan else [int(j) for j in str(i).split(",")] for i in baseline['reverteds']]
         baseline['sha1'] = baseline['sha1'].replace(np.nan, None)
         baseline['editor'] = baseline['editor'].replace(np.nan, None)
         baseline['anon'] = baseline['anon'].replace(np.nan, None)
diff --git a/wikiq b/wikiq
index 1164e1b..3346828 100755
--- a/wikiq
+++ b/wikiq
@@ -145,10 +145,10 @@ class RegexPair(object):
 
     def get_pyarrow_fields(self):
         if self.has_groups:
-            fields = [pa.field(self._make_key(cap_group), pa.list_(pa.string()))
+            fields = [pa.field(self._make_key(cap_group), pa.string())
                       for cap_group in self.capture_groups]
         else:
-            fields = [pa.field(self.label, pa.list_(pa.string()))]
+            fields = [pa.field(self.label, pa.string())]
 
         return fields
 
@@ -461,6 +461,8 @@ class WikiqParser:
         if self.output_parquet:
             writer = pq.ParquetWriter(self.output_file, self.schema, flavor='spark')
         else:
+            print(self.output_file, file=sys.stderr)
+            print(self.schema, file=sys.stderr)
             writer = pc.CSVWriter(self.output_file, self.schema, write_options=pc.WriteOptions(delimiter='\t'))
 
         # Iterate through pages
@@ -500,13 +502,14 @@ class WikiqParser:
                 editorid = None if rev.deleted.user or rev.user.id is None else rev.user.id
                 # create a new data object instead of a dictionary.
                 rev_data: Revision = self.revdata_type(revid=rev.id,
-                                             date_time=datetime.fromtimestamp(rev.timestamp.unix(), tz=timezone.utc),
-                                             articleid=page.id,
-                                             editorid=editorid,
-                                             title=page.title,
-                                             deleted=rev.deleted.text,
-                                             namespace=namespace
-                                             )
+                                                       date_time=datetime.fromtimestamp(rev.timestamp.unix(),
+                                                                                        tz=timezone.utc),
+                                                       articleid=page.id,
+                                                       editorid=editorid,
+                                                       title=page.title,
+                                                       deleted=rev.deleted.text,
+                                                       namespace=namespace
+                                                       )
 
                 rev_data = self.matchmake_revision(rev, rev_data)
 
@@ -530,11 +533,9 @@ class WikiqParser:
                     if rev_detector is not None:
                         revert = rev_detector.process(text_sha1, rev.id)
 
+                        rev_data.revert = revert is not None
                         if revert:
-                            rev_data.revert = True
                             rev_data.reverteds = ",".join([str(s) for s in revert.reverteds])
-                        else:
-                            rev_data.revert = False
 
                 # if the fact that the edit was minor can be hidden, this might be an issue
                 rev_data.minor = rev.minor
@@ -577,7 +578,7 @@ class WikiqParser:
                             old_rev_data.tokens_removed = len(old_tokens_removed)
                             old_rev_data.tokens_window = PERSISTENCE_RADIUS - 1
 
-                            writer.write(rev_data.to_pyarrow())
+                            writer.write(old_rev_data.to_pyarrow())
 
                 else:
                     writer.write(rev_data.to_pyarrow())
@@ -605,57 +606,7 @@ class WikiqParser:
         print("Done: %s revisions and %s pages." % (rev_count, page_count),
               file=sys.stderr)
 
-        # remember to flush the parquet_buffer if we're done
-        if self.output_parquet is True:
-            self.flush_parquet_buffer()
-            self.pq_writer.close()
-
-        else:
-            self.output_file.close()
-
-    @staticmethod
-    def rows_to_table(rg, schema: Schema) -> Table:
-        cols = []
-        first = rg[0]
-        for col in first:
-            cols.append([col])
-
-        for row in rg[1:]:
-            for j in range(len(cols)):
-                cols[j].append(row[j])
-
-        arrays: list[Array] = []
-
-        typ: DataType
-        for i, (col, typ) in enumerate(zip(cols, schema.types)):
-            try:
-                arrays.append(pa.array(col, typ))
-            except pa.ArrowInvalid as exc:
-                print("column index:", i, "type:", typ, file=sys.stderr)
-                print("data:", col, file=sys.stderr)
-                print("schema:", file=sys.stderr)
-                print(schema, file=sys.stderr)
-                raise exc
-        return pa.Table.from_arrays(arrays, schema=schema)
-
-
-    """
-    Function that actually writes data to the parquet file. 
-    It needs to transpose the data from row-by-row to column-by-column
-    """
-    def flush_parquet_buffer(self):
-
-        """
-        Returns the pyarrow table that we'll write
-        """
-
-        outtable = self.rows_to_table(self.parquet_buffer, self.schema)
-        if self.pq_writer is None:
-            self.pq_writer: ParquetWriter = (
-                pq.ParquetWriter(self.output_file, self.schema, flavor='spark'))
-
-        self.pq_writer.write_table(outtable)
-        self.parquet_buffer = []
+        writer.close()
 
 
 def match_archive_suffix(input_filename):