Theis is also primary key constraint in dok table:
CONSTRAINT dok_pkey PRIMARY KEY (dokumnr),
On a sidenote: this primary implements a unique index anyway. The
additional index is useless. You can delete it to save time and
storage.
(Or maybe this is just another discrepancy between reality and problem
description.)
Erwin,
thank you.
This index was duplicated.
I changed my script not to create this index.
However this should not affect to speed a much since this index is created
after data is loaded to table.
Andrus.
