Bulk update bug on postgresql 10

[pietermartin]

The following query breaks on postgresql 10

UPDATE "public"."E_edgeToRoot" a 
SET
	("className") = 
	(v."className")
FROM (
VALUES
	(1, 'thisthatandanother')
) AS v(id, "className")
WHERE a."ID" = v.id

If there is only one property then the set statement must not have any parenthesis.

The following works.

UPDATE "public"."E_edgeToRoot" a 
SET
	"className" = 
	v."className"
FROM (
VALUES
	(1, 'thisthatandanother')
) AS v(id, "className")
WHERE a."ID" = v.id

Describe here http://www.postgresql-archive.org/Re-PostgreSQL-10-parenthesized-single-column-updates-can-produce-errors-td5989984.html

[pietermartin]

done with 42a5594