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fix(migration): Ensure the paginated update is deterministic (#21778)
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@ -100,22 +100,31 @@ def paginated_update(
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"""
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"""
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Update models in small batches so we don't have to load everything in memory.
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Update models in small batches so we don't have to load everything in memory.
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"""
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"""
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start = 0
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count = query.count()
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total = query.count()
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processed = 0
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session: Session = inspect(query).session
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session: Session = inspect(query).session
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result = session.execute(query)
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if print_page_progress is None or print_page_progress is True:
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if print_page_progress is None or print_page_progress is True:
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print_page_progress = lambda current, total: print(
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print_page_progress = lambda processed, total: print(
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f" {current}/{total}", end="\r"
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f" {processed}/{total}", end="\r"
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)
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)
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while start < count:
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end = min(start + batch_size, count)
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while True:
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for obj in query[start:end]:
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rows = result.fetchmany(batch_size)
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yield obj
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session.merge(obj)
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if not rows:
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break
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for row in rows:
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yield row[0]
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session.commit()
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session.commit()
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processed += len(rows)
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if print_page_progress:
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if print_page_progress:
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print_page_progress(end, count)
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print_page_progress(processed, total)
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start += batch_size
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def try_load_json(data: Optional[str]) -> Dict[str, Any]:
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def try_load_json(data: Optional[str]) -> Dict[str, Any]:
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@ -66,7 +66,6 @@ def upgrade():
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state["anchor"] = state["hash"]
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state["anchor"] = state["hash"]
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del state["hash"]
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del state["hash"]
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entry.value = pickle.dumps(value)
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entry.value = pickle.dumps(value)
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session.commit()
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def downgrade():
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def downgrade():
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@ -87,5 +86,3 @@ def downgrade():
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state["hash"] = state["anchor"]
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state["hash"] = state["anchor"]
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del state["anchor"]
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del state["anchor"]
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entry.value = pickle.dumps(value)
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entry.value = pickle.dumps(value)
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session.merge(entry)
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session.commit()
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