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reflector/server/migrations/versions/116b2f287eab_add_full_text_search.py

49 lines
1.1 KiB
Python

"""add_full_text_search
Revision ID: 116b2f287eab
Revises: 0bc0f3ff0111
Create Date: 2025-08-07 11:27:38.473517
"""
from typing import Sequence, Union
from alembic import op
revision: str = "116b2f287eab"
down_revision: Union[str, None] = "0bc0f3ff0111"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None
def upgrade() -> None:
conn = op.get_bind()
if conn.dialect.name != "postgresql":
return
op.execute(
"""
ALTER TABLE transcript ADD COLUMN search_vector_en tsvector
GENERATED ALWAYS AS (
setweight(to_tsvector('english', coalesce(title, '')), 'A') ||
setweight(to_tsvector('english', coalesce(webvtt, '')), 'B')
) STORED
"""
)
op.create_index(
"idx_transcript_search_vector_en",
"transcript",
["search_vector_en"],
postgresql_using="gin",
)
def downgrade() -> None:
conn = op.get_bind()
if conn.dialect.name != "postgresql":
return
op.drop_index("idx_transcript_search_vector_en", table_name="transcript")
op.drop_column("transcript", "search_vector_en")