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