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72 lines
2.3 KiB
Python
72 lines
2.3 KiB
Python
"""Phase 2 - 查重功能：duplication_records + duplication_segments
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Revision ID: 012
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Revises: 011
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Create Date: 2026-06-28
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This migration creates two new tables:
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1. duplication_records — 查重记录主表
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2. duplication_segments — 重复片段详情表
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"""
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import sqlalchemy as sa
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from alembic import op
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# revision identifiers
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revision = "012"
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down_revision = "011"
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branch_labels = None
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depends_on = None
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def upgrade() -> None:
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conn = op.get_bind()
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# ── 1. Create duplication_records table ──
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conn.execute(sa.text("""
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CREATE TABLE IF NOT EXISTS duplication_records (
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id VARCHAR(36) PRIMARY KEY,
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user_id VARCHAR(36) NOT NULL,
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filename VARCHAR(500) NOT NULL,
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file_size INTEGER NOT NULL,
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storage_key VARCHAR(500) NOT NULL,
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duration_seconds FLOAT NOT NULL DEFAULT 0,
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status VARCHAR(20) NOT NULL DEFAULT 'pending',
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duplicate_rate FLOAT,
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duplicate_count INTEGER NOT NULL DEFAULT 0,
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video_fingerprint TEXT,
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error_message TEXT NOT NULL DEFAULT '',
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created_at TIMESTAMP NOT NULL DEFAULT NOW(),
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updated_at TIMESTAMP NOT NULL DEFAULT NOW()
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)
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"""))
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conn.execute(sa.text("CREATE INDEX IF NOT EXISTS ix_duplication_records_user_id ON duplication_records(user_id)"))
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conn.execute(sa.text("CREATE INDEX IF NOT EXISTS ix_duplication_records_status ON duplication_records(status)"))
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# ── 2. Create duplication_segments table ──
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conn.execute(sa.text("""
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CREATE TABLE IF NOT EXISTS duplication_segments (
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id VARCHAR(36) PRIMARY KEY,
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record_id VARCHAR(36) NOT NULL,
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source_start FLOAT NOT NULL,
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source_end FLOAT NOT NULL,
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matched_video_id VARCHAR(36) NOT NULL,
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matched_video_name VARCHAR(500) NOT NULL DEFAULT '',
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matched_start FLOAT NOT NULL,
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matched_end FLOAT NOT NULL,
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similarity FLOAT NOT NULL
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)
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"""))
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conn.execute(
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sa.text("CREATE INDEX IF NOT EXISTS ix_duplication_segments_record_id ON duplication_segments(record_id)")
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)
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def downgrade() -> None:
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conn = op.get_bind()
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conn.execute(sa.text("DROP TABLE IF EXISTS duplication_segments"))
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conn.execute(sa.text("DROP TABLE IF EXISTS duplication_records"))
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