'How to determine data block encoding method?

It is known that the HEX code: 08 45 DB 3C 7E D0 05 means the timestamp range (192 lines)

    "2021-11-11 10:24:49 013000us"
    "2021-11-11 10:24:49 113000us"
...
    "2021-11-11 10:25:08 113000us"

HEX code: 07 45 DB 3C 7E D0 05 means the timestamp range (192 lines)

    "2021-11-11 10:24:49 012999us"
    "2021-11-11 10:24:49 112999us"
...
    "2021-11-11 10:25:08 112999us"

HEX code: 00 45 DB 3C 7E D0 05 means the timestamp range (192 lines)

    "2021-11-11 10:24:49 012992us"
    "2021-11-11 10:24:49 112992us"
...
    "2021-11-11 10:25:08 112992us"

How to determine the encoding method for timestamp range?

encodingcompression


Solution 1:[1]

It looks like a Unix time multiplied by 1,000,000, and then microseconds added. In little-endian order. That gives the first time of each of your ranges, sort of. For example, for your first one I get 13000 microseconds after 2021-11-11 07:24:49 GMT. So you are showing three hours after GMT, e.g. Moscow time.

The range must be implied.

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Mark Adler

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