>> My other idea was that there are so many indexes on this table, maybe
>> the update is slow because of the indexes?
>>
>
> Updating indexes is certainly very far from being free. How many is
> "many"?
>
Number of indexes = 15.
3 indexex are on "text" type column, 500MB in size each.
Other are on int8 and timestamp columns, cca. 200MB each.
