70 lines
2 KiB
Python
70 lines
2 KiB
Python
"""Add arXiv query cache table.
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Revision ID: 20260226_0024
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Revises: 20260226_0023
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Create Date: 2026-02-26 14:20:00.000000
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"""
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from collections.abc import Sequence
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from alembic import op
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import sqlalchemy as sa
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from sqlalchemy.dialects import postgresql
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# revision identifiers, used by Alembic.
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revision: str = "20260226_0024"
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down_revision: str | Sequence[str] | None = "20260226_0023"
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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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def upgrade() -> None:
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bind = op.get_bind()
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inspector = sa.inspect(bind)
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table_names = set(inspector.get_table_names())
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if "arxiv_query_cache_entries" in table_names:
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return
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op.create_table(
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"arxiv_query_cache_entries",
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sa.Column("query_fingerprint", sa.String(length=64), nullable=False),
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sa.Column("payload", postgresql.JSONB(astext_type=sa.Text()), nullable=False),
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sa.Column("expires_at", sa.DateTime(timezone=True), nullable=False),
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sa.Column(
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"cached_at",
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sa.DateTime(timezone=True),
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nullable=False,
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server_default=sa.func.now(),
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),
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sa.Column(
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"updated_at",
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sa.DateTime(timezone=True),
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nullable=False,
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server_default=sa.func.now(),
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),
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sa.PrimaryKeyConstraint(
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"query_fingerprint",
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name=op.f("pk_arxiv_query_cache_entries"),
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),
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)
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op.create_index(
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"ix_arxiv_query_cache_expires_at",
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"arxiv_query_cache_entries",
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["expires_at"],
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unique=False,
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)
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op.create_index(
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"ix_arxiv_query_cache_cached_at",
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"arxiv_query_cache_entries",
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["cached_at"],
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unique=False,
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)
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def downgrade() -> None:
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bind = op.get_bind()
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inspector = sa.inspect(bind)
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table_names = set(inspector.get_table_names())
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if "arxiv_query_cache_entries" in table_names:
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op.drop_table("arxiv_query_cache_entries")
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