Скачать или смотреть Nano Second Timestamp Handling

OneTick as a time series database is storing every record with a time stamp. Time stamps can be either millisecond accuracy or nanosecond accuracy. You choose. Typically high liquidity markets will be stored within nanosecond time stamps as well any analytics that is used for market microstructure or surveillance.

If multiple input records have the same timestamp, we'll also add a sequence number so we can keep track of the order of retrieval.
When we collect real time data, we store a collected time stamp and a data source itself may include other time stamps such as an exchange time stamp.

Databases' analytics can be configured to select the time stamp most appropriate for the analytical needs that you choose. Do you want to sort and retrieve data by exchange timestamp, by the market data time stamp, by the collected time stamp? And work accordingly.