Failed to import CVS in HANA

Question

I attempted to import a txt file into a table, which contains BLOB type fields, but it failed. Although the import statement ran successfully, the table was empty. The SQL statement is like below:
create table TEST
(ID int primary  key,
content blob);
IMPORT FROM CVS FILE '/home/XM/TEST.txt' INTO "XM_CN".TEST
WITH THREADS 10 RECORD DELIMITED BY '\n' FIELD DELIMITED BY '\t';
The content of the txt file is:
ID
CONTENT
1
something
If I replace the "something" with "1010", the table will be filled.
And using insert statement to insert record is also OK:
insert into TEST values(2, 'another thing')
Can someone help advice this issue?
Thanks,
Min  Xu

Answer 1

Spot on Krishna!
It is all about the LOB value encoding that is expected here.
To see what would a proper LOB value look like in an export of the table, I inserted a record (1 ;TEST) via SQL and exported it.
Then it was obvious, as this is how the file looks like:
more data.csv
1,"54455354"
We find that the LOB column is stored in the binary format - visibile as a string, but interpreted as a series of bytes.
Changing this file to use a TAB instead of the comma still works.
And another mystery solved!
There you go, now you know...
- Lars