3 ms·
Could somebody help me understand the reasoning behind `timestamp = snowflake_id >> 22` Thanks :)
by greenbeans1991 5y ago
Could somebody help me understand the reasoning behind
`timestamp = snowflake_id >> 22`
Thanks :)
- karmanyaahm 5y agoIIRC a snowflake ID's first few bits (or characters?) are by definition a unix timestamp.
- greenbeans1991 5y agoAh it gets rid of the non-time related bits. Below is a description of the formatting * id is composed of: * time - 41 bits (millisecond precision w/ a custom epoch gives us 69 years) * configured machine id - 10 bits - gives us up to 1024 machines * sequence number - 12 bits - rolls over every 4096 per machine (with protection to avoid rollover in the same ms) thanks :)