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90e5963 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 | # Database Design — Multilingual ABSA
## ER Diagram
```mermaid
erDiagram
Review {
uuid id PK
text text
string language
datetime created_at
float processing_time_ms
}
AspectResult {
uuid id PK
uuid review_id FK
string aspect
string sentiment
float confidence
int start_pos
int end_pos
}
BatchJob {
uuid id PK
string status
int total
int processed
datetime created_at
datetime completed_at
}
Review ||--o{ AspectResult : "has aspects"
```
## Schema
```sql
CREATE TABLE reviews (
id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
text TEXT NOT NULL,
language VARCHAR(10) NOT NULL,
created_at TIMESTAMPTZ DEFAULT NOW(),
processing_time_ms FLOAT NOT NULL
);
CREATE TABLE aspect_results (
id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
review_id UUID NOT NULL REFERENCES reviews(id),
aspect VARCHAR(255) NOT NULL,
sentiment VARCHAR(50) NOT NULL,
confidence FLOAT NOT NULL,
start_pos INTEGER NOT NULL,
end_pos INTEGER NOT NULL
);
CREATE TABLE batch_jobs (
id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
status VARCHAR(50) NOT NULL DEFAULT 'queued',
total INTEGER NOT NULL,
processed INTEGER NOT NULL DEFAULT 0,
created_at TIMESTAMPTZ DEFAULT NOW(),
completed_at TIMESTAMPTZ
);
```
## Recommended Indexes (Production)
```sql
CREATE INDEX idx_aspect_results_review_id ON aspect_results(review_id);
CREATE INDEX idx_reviews_created_at ON reviews(created_at);
CREATE INDEX idx_reviews_language ON reviews(language);
CREATE INDEX idx_batch_jobs_status ON batch_jobs(status);
```
## Connection Configuration
```python
# Development (SQLite)
DATABASE_URL = "sqlite:///absa.db"
engine = create_engine(DATABASE_URL, connect_args={"check_same_thread": False})
# Production (PostgreSQL)
DATABASE_URL = "postgresql://user:pass@host:5432/absa_db"
engine = create_engine(DATABASE_URL, pool_pre_ping=True)
```
## ORM Models
```python
class Review(Base):
__tablename__ = "reviews"
id = Column(Uuid(as_uuid=True), primary_key=True, default=uuid.uuid4)
text = Column(Text, nullable=False)
language = Column(String(10), nullable=False)
created_at = Column(DateTime(timezone=True), default=lambda: datetime.now(timezone.utc))
processing_time_ms = Column(Float, nullable=False)
class AspectResult(Base):
__tablename__ = "aspect_results"
id = Column(Uuid(as_uuid=True), primary_key=True, default=uuid.uuid4)
review_id = Column(Uuid(as_uuid=True), ForeignKey("reviews.id"), nullable=False)
aspect = Column(String(255), nullable=False)
sentiment = Column(String(50), nullable=False)
confidence = Column(Float, nullable=False)
start_pos = Column(Integer, nullable=False)
end_pos = Column(Integer, nullable=False)
class BatchJob(Base):
__tablename__ = "batch_jobs"
id = Column(Uuid(as_uuid=True), primary_key=True, default=uuid.uuid4)
status = Column(String(50), nullable=False, default="queued")
total = Column(Integer, nullable=False)
processed = Column(Integer, nullable=False, default=0)
created_at = Column(DateTime(timezone=True), default=lambda: datetime.now(timezone.utc))
completed_at = Column(DateTime(timezone=True), nullable=True)
```
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