try to insert library item one by one if batch insert failed

packages/db/elastic_migrations/migrate_from_elastic.py

@@ -150,7 +150,7 @@ async def insert_library_items(db_conn, library_items):
             original_content = EXCLUDED.original_content,
             deleted_at = EXCLUDED.deleted_at
     '''
-    print('Inserting library items into postgres')
+    print(f'Inserting {len(library_items)} library items into postgres')
     await insert_into_postgres(insert_query, db_conn, library_items)
     print(f'Inserted {len(library_items)} library items')
 
@@ -185,7 +185,7 @@ async def insert_highlights(db_conn, highlights):
             color = EXCLUDED.color,
             html = EXCLUDED.html
     '''
-    print('Inserting highlights into postgres')
+    print(f'Inserting {len(highlights)} highlights into postgres')
     await insert_into_postgres(insert_query, db_conn, highlights)
     print(f'Inserted {len(highlights)} highlights')
 
@@ -202,7 +202,7 @@ async def insert_labels(db_conn, labels):
         WHERE l.id = $1 AND ($2 IS NULL OR li.id = $2) AND ($3 IS NULL OR h.id = $3)
         ON CONFLICT (label_id, library_item_id, highlight_id) DO NOTHING
     '''
-    print('Inserting labels into postgres')
+    print(f'Inserting {len(labels)} labels into postgres')
     await insert_into_postgres(insert_query, db_conn, labels)
     print(f'Inserted {len(labels)} labels')
 
@@ -221,13 +221,21 @@ async def insert_recommendations(db_conn, recommendations):
             note = EXCLUDED.note,
             created_at = EXCLUDED.created_at
     '''
-    print('Inserting recommendations into postgres')
+    print(f'Inserting {len(recommendations)} recommendations into postgres')
     await insert_into_postgres(insert_query, db_conn, recommendations)
     print(f'Inserted {len(recommendations)} recommendations')
 
 
 async def insert_into_postgres(insert_query, db_conn, records):
-    await db_conn.executemany(insert_query, records, timeout=int(PG_TIMEOUT))
+    try:
+        await db_conn.executemany(insert_query, records, timeout=int(PG_TIMEOUT))
+    except Exception as err:
+        print('Insert into postgres ERROR:', err)
+        # excute insert query one by one
+        for record in records:
+            print('Inserting record', record)
+            await db_conn.execute(insert_query, *record, timeout=int(PG_TIMEOUT))
+
     # cool down for PG_COOLDOWN_TIME seconds
     if float(PG_COOLDOWN_TIME) > 0:
         await asyncio.sleep(float(PG_COOLDOWN_TIME))
@@ -342,16 +350,13 @@ async def main():
             reading_progress_percent = source.get('readingProgressPercent', 0)
             reading_progress_anchor = source.get('readingProgressAnchorIndex', 0)
             content = source['content']
+            description = source.get('description', None)
+
             # skip item if content is larger than 1MB
             if len(content) > 1000000:
                 print('Skipping item', doc['_id'], 'because content is larger than 1MB')
                 continue
 
-            # truncate description to 1MB characters
-            description = source.get('description', None)
-            if description is not None and len(description) > 1000000:
-                description = description[:1000000]
-
             library_item = (
                 id,
                 get_uuid(source['userId']),