Re: BUG #14406: Statement fails after upgrade to 9.6.1

boskowski+coreybernal(at)gmail(dot)com writes:
> After upgrading from 9.5.4 to 9.6.1 using pg_upgrade with links an UPDATE
> (prepared) statement that previously worked started raising

> ERROR: table row type and query-specified row type do not match
> DETAIL: Query provides a value for a dropped column at ordinal position
> 19.

> I managed to solve this by creating an identical table, populating with
> INSERT/SELECT and swapping the tables by renaming them, all in one
> transaction.

> Please let me know what detail information can be helpful to you.

Without a self-contained test case, we're not going to be able to do much
with this report. Presumably a test case would look something like
"create a table like this under 9.5; drop some columns in it like this;
pg_upgrade to 9.6; execute this query". But nobody's going to try to
fill in all those details by guessing.

regards, tom lane