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58 lines
2.5 KiB
Python
58 lines
2.5 KiB
Python
"""add dividend_calendar table
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Revision ID: f7a8b9c0d1e2
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Revises: e6f7a8b9c0d1
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Create Date: 2026-04-03
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"""
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from typing import Sequence, Union
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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: str = "f7a8b9c0d1e2"
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down_revision: Union[str, Sequence[str], None] = "e6f7a8b9c0d1"
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branch_labels: Union[str, Sequence[str], None] = None
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depends_on: Union[str, Sequence[str], None] = None
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def upgrade() -> None:
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conn = op.get_bind()
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if not conn.dialect.has_table(conn, "dividend_calendar"):
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op.create_table(
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"dividend_calendar",
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sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True),
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sa.Column("ticker", sa.String(10), nullable=False),
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sa.Column("ex_dividend_date", postgresql.TIMESTAMP(timezone=True), nullable=False),
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sa.Column("amount", sa.Float(), nullable=False),
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sa.Column("declaration_date", postgresql.TIMESTAMP(timezone=True), nullable=True),
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sa.Column("record_date", postgresql.TIMESTAMP(timezone=True), nullable=True),
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sa.Column("payment_date", postgresql.TIMESTAMP(timezone=True), nullable=True),
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sa.Column("currency", sa.String(10), server_default="USD"),
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sa.Column("dividend_type", sa.String(20), server_default="regular"),
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sa.Column("frequency", sa.String(20), nullable=True),
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sa.Column("as_of_date", postgresql.TIMESTAMP(timezone=True), nullable=False),
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sa.Column("source", sa.String(50), nullable=False),
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sa.Column("source_file_date", postgresql.TIMESTAMP(timezone=True), nullable=True),
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sa.Column("created_at", postgresql.TIMESTAMP(timezone=True)),
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sa.Column("updated_at", postgresql.TIMESTAMP(timezone=True)),
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sa.UniqueConstraint(
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"ticker", "ex_dividend_date", "as_of_date", "source",
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name="uq_dividend_calendar",
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),
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)
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op.create_index("ix_dividend_calendar_ticker", "dividend_calendar", ["ticker"])
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op.create_index("idx_dividend_ticker_exdate", "dividend_calendar", ["ticker", "ex_dividend_date"])
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op.create_index("idx_dividend_exdate", "dividend_calendar", ["ex_dividend_date"])
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op.create_index("idx_dividend_as_of", "dividend_calendar", ["as_of_date"])
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op.create_index(
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"idx_dividend_pit_query",
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"dividend_calendar",
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["ticker", "ex_dividend_date", "as_of_date"],
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)
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def downgrade() -> None:
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op.drop_table("dividend_calendar")
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