Daniel Wu <staywithpin@xxxxxxxxx> writes: > We have many indexes on a table. The chance is that any column could be > some part of an index. I understand that when an index has a column that is > updated, we can't use HOT, because the index entry could point to a totally > different row. But if I have 10 indexes, if only 1 index will be updated, > why the rest 9 indexes couldn't use HOT update? Whether it's a HOT update is a property of the table row, not of individual indexes. regards, tom lane