Query:
CREATE TABLE IF NOT EXISTS "TEMP_tmp".temp (
"Date_Time" timestamp,
PRIMARY KEY ("Date_Time")
);
CSV Contains "13/01/09 23:13" values.
Error : Failed to import 1 rows: ParseError - Failed to parse 13/01/09 23:13 : invalid literal for long() with base 10: '13/01/09 23:13', given up without retries.
What Data Type should I Use ?
Default Cqlsh timestamp format is : year-month-day hour:min:sec+timezone
Example :
2017-02-01 05:28:36+0000
You either change your date format to above or you can change the format from cqlshrc file
Check this answer custom cassandra / cqlsh time_format
cassandra will store timestamp as 2017-02-01 08:28:21+0000. For example, if I store a timestamp in your described table "TEMP_tmp".temp:
cassandra@cqlsh> INSERT INTO TEMP_tmp.temp ("Date_Time") VALUES ( toTimestamp(now()));
cassandra@cqlsh> SELECT * FROM TEMP_tmp.temp;
Date_Time
--------------------------
2017-02-01 09:14:29+0000
If we copy all the data to csv:
cassandra@cqlsh> COPY Temp_tmp.temp TO 'temp.csv';
temp.csv will contain:
2017-02-01 09:14:29+0000
If we truncate the table:
cassandra@cqlsh> TRUNCATE TABLE TEMP_tmp.temp;
cassandra@cqlsh> SELECT * FROM TEMP_tmp.temp;
Date_Time
--------------------------
Then if we import temp.csv:
cassandra@cqlsh> COPY Temp_tmp.temp FROM 'temp.csv';
Using 1 child processes
Starting copy of Temp_tmp.temp with columns [Date_Time].
Processed: 1 rows; Rate: 1 rows/s; Avg. rate: 1 rows/s
1 rows imported from 1 files in 0.746 seconds (0 skipped).
If you want custom date/time format, then follow Ashraful Islam's answer from your question.
