Tian Jiang created IOTDB-208: -------------------------------- Summary: Add bloom filters to TsFile Key: IOTDB-208 URL: https://issues.apache.org/jira/browse/IOTDB-208 Project: Apache IoTDB Issue Type: New Feature Reporter: Tian Jiang
The recent readings remind me that the bloom filter is standard equipment in K-VDBs. Although IoTDB is not one of them (at least not typically), the bloom filter still helps a lot in various situations. For example, our recent experiments gave us an illusion that the time series in a storage group remains unchanged. However, that is not the case. Naturally, in real situations, the number of time series grows over time, due to reasons like adding new gears. The old files do not contain such a time series. Without the help of bloom filters, we have to check each old file only to find that there is no such time series. To my knowledge, this may take a lot of time. So, I suggest we add a bloom filter (or some more efficient one) to each TsFile to help skip unwanted files. -- This message was sent by Atlassian Jira (v8.3.2#803003)