contentdb/migrations/versions/3710e5fbbe87_.py

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"""empty message
Revision ID: 3710e5fbbe87
Revises: f6ef5f35abca
Create Date: 2022-01-27 18:50:11.705061
"""
from alembic import op
import sqlalchemy as sa
from sqlalchemy import text
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from sqlalchemy.dialects import postgresql
# revision identifiers, used by Alembic.
revision = '3710e5fbbe87'
down_revision = 'f6ef5f35abca'
branch_labels = None
depends_on = None
def upgrade():
command = """
CREATE OR REPLACE FUNCTION parse_websearch(config regconfig, search_query text)
RETURNS tsquery AS $$
SELECT
string_agg(
(
CASE
WHEN position('''' IN words.word) > 0 THEN CONCAT(words.word, ':*')
ELSE words.word
END
),
' '
)::tsquery
FROM (
SELECT trim(
regexp_split_to_table(
websearch_to_tsquery(config, lower(search_query))::text,
' '
)
) AS word
) AS words
$$ LANGUAGE SQL IMMUTABLE;
CREATE OR REPLACE FUNCTION parse_websearch(search_query text)
RETURNS tsquery AS $$
SELECT parse_websearch('pg_catalog.simple', search_query);
$$ LANGUAGE SQL IMMUTABLE;"""
op.execute(text(command))
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def downgrade():
op.execute(text('DROP FUNCTION public.parse_websearch(regconfig, text);'))
op.execute(text('DROP FUNCTION public.parse_websearch(text);'))