Todd Lipcon created KUDU-1594:
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Summary: Rename TIMESTAMP type to avoid confusion with other
timestamp types
Key: KUDU-1594
URL: https://issues.apache.org/jira/browse/KUDU-1594
Project: Kudu
Issue Type: Improvement
Reporter: Todd Lipcon
Assignee: Todd Lipcon
Priority: Critical
Kudu aims to be part of the Hadoop ecosystem, and other tools in the Hadoop
ecosystem store timestamps differently than Kudu. For example:
- Parquet has TIMESTAMP_MILLIS which is milliseconds since the Unix epoch.
- Impala internally stores a {64-bit nanoseconds since midnight, 32-bit Julian
day number}, and when storing in Parquet, uses Parquet's INT96 type to store
this.
- Hive internally uses a 32-bit seconds-since-Unix-epoch, plus an optional
nanoseconds component
To avoid adding to the confusion, we should name our time more explicitly (eg
UNIX_MICROTIMESTAMP or UNIXTIME_MICROS or somesuch)
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