Write a function that updates version_actual_period_start with type timestamp. Look for an entry with the condition version_actual_period_end > current_timestamp . the user specifies the desired date, and the previous one, according to the time of the relevance of the record, is updated version_actual_period_end-becomes the same, but 1 second less. Input parameters time, database table name, version_meta_id array. Plpgsql

DROP FUNCTION IF EXISTS update_period_start_timestamp(timestamp, text, integer[]);
CREATE OR REPLACE FUNCTION update_period_start_timestamp(timestamp, text, integer[])
  RETURNS void
  LANGUAGE plpgsql
  AS $$
BEGIN
  UPDATE $2 SET version_actual_period_start=$1,version_actual_period_end=version_actual_period_start
  WHERE version_actual_period_end>NOW() AND version_meta_id=ANY($3);
END;
$$;