Github user xuchuanyin commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/1974#discussion_r167502743
--- Diff:
core/src/main/java/org/apache/carbondata/core/keygenerator/directdictionary/timestamp/TimeStampGranularityConstants.java
---
@@ -27,6 +27,10 @@
* customized the start of position. for example "January 1, 2000"
*/
String CARBON_CUTOFF_TIMESTAMP = "carbon.cutOffTimestamp";
+ /**
+ * default value of cutoff timestamp
+ */
+ String CARBON_CUTOFF_TIMESTAMP_DEFAULT_VAL = "1970-01-01 05:30:00";
--- End diff --
FYI:
This is set based on `configuration-parameters.md`.
Dictionary value of timestamp will be generated as following:
1. Convert the value to Dateï¼d1ï¼ï¼
2. Get the ms of the Date value ï¼ts = d1.getTime()ï¼ï¼
3. Calculate the key for ts. If ts < cutOffTimeStamp, then it be treated as
bad record, otherwise carbondata will generate the key...
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