CREATE [ OR REPLACE ] FUNCTION
  name( [ [argmode] [argname]argtype[ { DEFAULT | = }default_expr] [, ...] ] )
    [ RETURNSrettype
     | RETURNS TABLE (column_namecolumn_type[, ...] ) ]
  { LANGUAGElang_name
    | WINDOW
| IMMUTABLE | STABLE | VOLATILE
    | CALLED ON NULL INPUT | RETURNS NULL ON NULL INPUT | STRICT
    | [ EXTERNAL ] SECURITY INVOKER | [ EXTERNAL ] SECURITY DEFINER
    | COSTexecution_cost
    | ROWSresult_rows
    | SETconfiguration_parameter{ TOvalue| =value| FROM CURRENT }
    | AS 'definition'
    | AS 'obj_file', 'link_symbol'
  } ...
    [ WITH (attribute[, ...] ) ]
————————————————

CREATE OR REPLACE FUNCTION "xue"."insert_into_table"()
 RETURNS "pg_catalog"."void" AS $BODY$
DECLARE tmp VARCHAR(1024);
DECLARE n integer;
DECLARE i integer;
DECLARE inst_seq_no CURSOR FOR
  SELECT inst_seq_no FROM t where no in (
  '111','22','223','33','4358',
   '233','449','315','35335');
BEGIN
  RAISE NOTICE '------------start----------';
  i := 30;
  FOR stmt IN no LOOP
    n := 30;
    FOR n IN n..i LOOP    
      insert into test2 (NO,
      test_NO,TIME,USER_NO,SEQ_NO,
      NAME,USER_NO1,USER_NAME,CODE,USER_NO2,OPROR_NAME,
      REVIEW_TIME,DESC,
      VAL1,VAL2,DATE,UPD_TIME,DEL_FLAG) values
      (nextval('seq_test2'),n,'20190910',n,stmt.seq_no,n,n,n,n,n,n,'20190910','01','',n,n,'20190910',
      '20190909','0');
      END LOOP;
       n = n+30;
      i = i+30;
  END LOOP;
  RAISE NOTICE '-----------finished---------';
END;
$BODY$
 LANGUAGE plpgsql VOLATILE
 COST 100`

PERFORM query;

PERFORM create_mv('cs_session_page_requests_mv', my_query);