On 07/01/2016 07:26 AM, shankha wrote:
Greetings,
I have the following schema:
CREATE TABLE "s"."t1"
(
"c1" BigSerial PRIMARY KEY,
"c2" BigInt NOT NULL,
"c3" BigInt
)
WITH (OIDS=FALSE);
Unless you have a very old version of Postgres, OIDS=FALSE is the default.
INSERT INTO s.t1 (c2, c3) VALUES (10, 100);
INSERT INTO s.t1 (c2, c3) VALUES (20, 200);
INSERT INTO s.t1 (c2, c3) VALUES (30, 300);
INSERT INTO s.t1 (c2, c3) VALUES (40, 400);
PREPARE updateplan (BigInt, BigInt) AS
update s.t1
SET c3 = $2
WHERE c2 = $1;
EXECUTE updateplan (20, 250);
***
PREPARE updatearrayplan(BigInt[], BigInt[]) AS
for i in size($1)
DO
update s.t1
SET c3 = $2[$i]
WHERE c2 = $1[$i]
END FOR
I am not familiar with the above syntax, are you using a Postgres
version different from the community version?
EXECUTE updatearrayplan({20, 30}, {275, 375})
***
/* 20, 200 -> 20, 275 */
/* 30, 300 -> 30, 375 */
***
After execution of updatearrayplan I am expecting the rows to have
these values 20 -> 275 , 30 -> 375
Is there a way to update multiple rows with different column values
passed in as array. Also is there a guarantee that the order of the
arrays will be maintained.
Thanks
--
Adrian Klaver
adrian.klaver@xxxxxxxxxxx
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