41 lines
1.1 KiB
Python
41 lines
1.1 KiB
Python
 
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"""IMAP ids as 64-bit integers
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UIDVALIDITY and UIDs are unsigned 32-bit numbers (RFC 9051), MODSEQ up to 63
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bits (RFC 7162); Postgres ``integer`` is signed 32-bit. Servers that hand out
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values above 2^31 — the hosted mail server's UIDVALIDITY, for one — could not
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be stored ("value out of int32 range") and their folders never synced.
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Revision ID: 0026
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Revises: 0025
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Create Date: 2026-10-11
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"""
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from __future__ import annotations
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from collections.abc import Sequence
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from alembic import op
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revision: str = "0026"
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down_revision: str | None = "0025"
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branch_labels: str | Sequence[str] | None = None
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depends_on: str | Sequence[str] | None = None
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_COLUMNS = (
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("mailboxes", "uidvalidity"),
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("mailboxes", "highestmodseq"),
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("mailboxes", "last_seen_uid"),
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("messages", "uid"),
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("drafts", "imap_uid"),
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)
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def upgrade() -> None:
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for table, column in _COLUMNS:
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op.execute(f"ALTER TABLE {table} ALTER COLUMN {column} TYPE bigint")
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def downgrade() -> None:
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for table, column in _COLUMNS:
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op.execute(f"ALTER TABLE {table} ALTER COLUMN {column} TYPE integer")
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