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30 lines
964 B
Python
30 lines
964 B
Python
"""
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Overlay registry — company alias lookup for entity resolution.
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"""
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from sqlalchemy import Column, String, Float, Boolean, Index
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from sqlalchemy.dialects.postgresql import UUID, TIMESTAMP
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from datetime import datetime, timezone
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import uuid
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from app.core.database import Base
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class CompanyAlias(Base):
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__tablename__ = "company_aliases"
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id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
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symbol = Column(String(10), nullable=False, index=True)
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alias_type = Column(String(20), nullable=False) # canonical / short / alias / wiki
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alias_value = Column(String(255), nullable=False)
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confidence = Column(Float, default=1.0)
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active = Column(Boolean, default=True)
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created_at = Column(
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TIMESTAMP(timezone=True), default=lambda: datetime.now(timezone.utc)
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)
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__table_args__ = (
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Index("idx_company_aliases_symbol", "symbol"),
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Index("idx_company_aliases_value", "alias_value"),
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)
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