Bootstrap

pgsql 游标

DO
B E G I N D E C L A R E u n b o u n d r e f c u r s o r r e f c u r s o r ; u n b o u n d r e f c u r s o r 2 r e f c u r s o r ; s q l s t r V A R C H A R ( 1000 ) ; d e v i c e i d I N T ; u p d a t e t i m e t i m e s t a m p w i t h o u t t i m e z o n e ; e n d s t a t e t i m e t i m e s t a m p w i t h o u t t i m e z o n e = c a s t ( ′ 0001 − 01 − 0100 : 00 : 0 0 ′ a s t i m e s t a m p w i t h o u t t i m e z o n e ) ; B E G I N O P E N u n b o u n d r e f c u r s o r F O R E X E C U T E ′ s e l e c t o l d e v i c e d o w n t i m e . d e v i c e i d f r o m o l d e v i c e d o w n t i m e g r o u p b y o l d e v i c e d o w n t i m e . d e v i c e i d ′ ; l o o p F E T C H u n b o u n d r e f c u r s o r I N T O d e v i c e i d ; I F F O U N D T H E N O P E N u n b o u n d r e f c u r s o r 2 F O R E X E C U T E ′ s e l e c t o l d e v i c e d o w n t i m e . u p d a t e t i m e f r o m o l d e v i c e d o w n t i m e w h e r e o l d e v i c e d o w n t i m e . d e v i c e i d = ′ ∣ ∣ d e v i c e i d ∣ ∣ ′ o r d e r b y u p d a t e t i m e d e s c ′ ; l o o p F E T C H u n b o u n d r e f c u r s o r 2 I N T O u p d a t e t i m e ; I F F O U N D T H E N s q l s t r = ′ u p d a t e o l d e v i c e d o w n t i m e s e t e n d s t a t e t i m e = ′ ′ ′ ∣ ∣ e n d s t a t e t i m e ∣ ∣ ′ ′ ′ w h e r e o l d e v i c e d o w n t i m e . d e v i c e i d = ′ ∣ ∣ d e v i c e i d ∣ ∣ ′ a n d u p d a t e t i m e = ′ ′ ′ ∣ ∣ u p d a t e t i m e ∣ ∣ ′ ′ ′ ′ ; E X E C U T E s q l s t r ; e n d s t a t e t i m e = u p d a t e t i m e ; E L S E e x i t ; E N D I F ; E N D l o o p ; e n d s t a t e t i m e = c a s t ( ′ 0001 − 01 − 0100 : 00 : 0 0 ′ a s t i m e s t a m p w i t h o u t t i m e z o n e ) ; c l o s e u n b o u n d r e f c u r s o r 2 ; E L S E e x i t ; E N D I F ; E N D l o o p ; c l o s e u n b o u n d r e f c u r s o r ; E N D ; E N D ; BEGIN DECLARE unbound_refcursor refcursor ; unbound_refcursor2 refcursor ; sqlstr VARCHAR (1000) ; deviceid INT ; updatetime timestamp without time zone ; endstatetime timestamp without time zone = cast ('0001-01-01 00:00:00' as timestamp without time zone); BEGIN OPEN unbound_refcursor FOR EXECUTE 'select oldevicedowntime.deviceid from oldevicedowntime group by oldevicedowntime.deviceid' ; loop FETCH unbound_refcursor INTO deviceid ; IF FOUND THEN OPEN unbound_refcursor2 FOR EXECUTE 'select oldevicedowntime.updatetime from oldevicedowntime where oldevicedowntime.deviceid='||deviceid||' order by updatetime desc '; loop FETCH unbound_refcursor2 INTO updatetime; IF FOUND THEN sqlstr = 'update oldevicedowntime set endstatetime='''||endstatetime||''' where oldevicedowntime.deviceid = '||deviceid||' and updatetime='''||updatetime||''''; EXECUTE sqlstr; endstatetime = updatetime ; ELSE exit ; END IF ; END loop ; endstatetime= cast ('0001-01-01 00:00:00' as timestamp without time zone); close unbound_refcursor2; ELSE exit ; END IF ; END loop ; close unbound_refcursor; END ; END ; BEGINDECLAREunboundrefcursorrefcursor;unboundrefcursor2refcursor;sqlstrVARCHAR(1000);deviceidINT;updatetimetimestampwithouttimezone;endstatetimetimestampwithouttimezone=cast(0001010100:00:00astimestampwithouttimezone);BEGINOPENunboundrefcursorFOREXECUTEselectoldevicedowntime.deviceidfromoldevicedowntimegroupbyoldevicedowntime.deviceid;loopFETCHunboundrefcursorINTOdeviceid;IFFOUNDTHENOPENunboundrefcursor2FOREXECUTEselectoldevicedowntime.updatetimefromoldevicedowntimewhereoldevicedowntime.deviceid=deviceidorderbyupdatetimedesc;loopFETCHunboundrefcursor2INTOupdatetime;IFFOUNDTHENsqlstr=updateoldevicedowntimesetendstatetime=endstatetimewhereoldevicedowntime.deviceid=deviceidandupdatetime=updatetime;EXECUTEsqlstr;endstatetime=updatetime;ELSEexit;ENDIF;ENDloop;endstatetime=cast(0001010100:00:00astimestampwithouttimezone);closeunboundrefcursor2;ELSEexit;ENDIF;ENDloop;closeunboundrefcursor;END;END;

DO
$$
BEGIN
declare
unbound_refcursor refcursor;
strDeviceid varchar(1000);
userid uuid;
tablename varchar(1000);
strSql varchar(1000);
_val varchar(1000);
begin
open unbound_refcursor for
select id from cfg_user;
loop
fetch unbound_refcursor into userid;
if found then
tablename=replace(CAST(userid AS varchar),’-’,’’);

	RAISE NOTICE 'userid-- %',userid;
	RAISE NOTICE 'tablename-- %',tablename;

strSql=' create materialized view AssetTree_'||tablename||'  as 

(WITH RECURSIVE AssetTree AS(
SELECT A.*,b.pid
FROM
com_asset A
INNER JOIN com_assetrela b ON A . ID = b.cid
WHERE
b.grouptype = 0
and a.id in (select assetid from cfg_userasset where userid =’’’||userid||’’’)

        UNION ALL
        SELECT
        C.*, 
        d.pid
            FROM
        com_asset C
        INNER JOIN com_assetrela d ON C . ID = d.cid
        INNER JOIN AssetTree ON AssetTree.ID = d.pid
        AND d.cid<> d.pid  ) select * from AssetTree)';

execute strSql;
else
exit;
end if;
end loop;
end;
END;

$$

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