Troubleshooting
Problem
When using LENGTH command to determine the size of a column BigSQL is returning a different size than the same column in Hive.
Symptom
db2 "CREATE HADOOP TABLE BIGSQL.TEST_TABLE (col1 VARCHAR(512)) STORED AS PARQUETFILE "
The SQL command completed successfully.
db2 "insert into bigsql.test_table values('•')"
The SQL command completed successfully.
db2 "select length(col1) from bigsql.test_table"
1
-----------
13
1 record(s) selected
hive> select length(col1) from bigsql.test_table;
OK
6
The SQL command completed successfully.
db2 "insert into bigsql.test_table values('•')"
The SQL command completed successfully.
db2 "select length(col1) from bigsql.test_table"
1
-----------
13
1 record(s) selected
hive> select length(col1) from bigsql.test_table;
OK
6
Document Location
Worldwide
[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSCRJT","label":"IBM Db2 Big SQL"},"Component":"","Platform":[{"code":"PF016","label":"Linux"}],"Version":"4.2, 4.2.5, 5.0.0, 5.0.1, 5.0.2, 5.0.3, 5.0.4","Edition":"","Line of Business":{"code":"LOB76","label":"Data Platform"}}]
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Document Information
Modified date:
08 April 2021
UID
ibm10870828