23 lines
707 B
PL/PgSQL
23 lines
707 B
PL/PgSQL
ALTER TABLE pgivm.pg_ivm_immv ADD COLUMN querystring text NOT NULL;
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CREATE FUNCTION pgivm.refresh_query_strings()
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RETURNS event_trigger LANGUAGE plpgsql SECURITY DEFINER AS
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$$
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DECLARE
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old_search_path text;
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BEGIN
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-- Empty search path so that get_immv_def returns a fully-qualified query.
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SELECT setting INTO old_search_path FROM pg_catalog.pg_settings
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WHERE name = 'search_path';
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SET search_path = '';
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UPDATE pgivm.pg_ivm_immv SET querystring = pgivm.get_immv_def(immvrelid);
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-- Reset search path to the original value.
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EXECUTE format('SET search_path = %s', old_search_path);
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END
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$$;
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CREATE EVENT TRIGGER refresh_query_strings
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ON ddl_command_end
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EXECUTE FUNCTION pgivm.refresh_query_strings();
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