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

CREATE OR REPLACE FUNCTION update_period_start(
    time_new timestamp,
    table_name text, -- table name
    version_meta_id int[] -- version_meta_id array
  ) RETURNS void AS
$BODY$
DECLARE
  table_name_temp text; -- temporary table name
  version_meta_id_temp int[]; -- temporary version_meta_id array
  new_version_meta_id_temp int[]; -- new temporary version_meta_id array
  counter integer; -- counter
  time_current timestamp; -- current_timestamp
  time_old timestamp; -- previous timestamp
BEGIN
  counter := 1;
  table_name_temp := 'temp_' || table_name;
  version_meta_id_temp := version_meta_id;
  time_current := current_timestamp;
  -- creating a temporary table
  EXECUTE 'CREATE TEMP TABLE ' || table_name_temp || ' (LIKE ' || table_name || ' INCLUDING ALL)';
  --