Row timestamps in Bigtable - when are they updated?

问题

The definition of TimestampRangeFilter from Bigtable's Go API is:

TimestampRangeFilter returns a filter that matches any rows whose timestamp is within the given time bounds.

Is the row timestamp updated when:

• Any column value is written/changed within that row?
• The row key is updated?
• The row is created?
• Any other circumstances?

回答1:

I think this is a documentation bug. It should read something like:

TimestampRangeFilter returns a filter that matches any cells whose timestamp is within the given time bounds.

Rows themselves don't have timestamps.

来源：https://stackoverflow.com/questions/44287838/row-timestamps-in-bigtable-when-are-they-updated