[TAJO-848] PreLogicalPlanVerifier::visitInsert need to find smaller expressions than target columns for a partitioned table.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.9.0
• Component/s: Planner/Optimizer
• Assignee: JaeHwa Jung
• Reporter: JaeHwa Jung
• Created: 26/May/14 07:37
• Updated: 23/Jun/14 02:53
• Resolved: 23/Jun/14 02:42

Description

Currently, user can insert data even if there is small columns compare to target columns as follows:

create table table1 (id int, name text, score float, type text) using csv with ('csvfile.delimiter'='|') ;

create table table3 (id int, name text, score float, type text) using csv with ('csvfile.delimiter'='|') ;

create table table4 (id int, name text, score float, type text) using csv with ('csvfile.delimiter'='|') partition by column(part text);

default> insert overwrite into table3 select id, name from table1;
Progress: 0%, response time: 0.544 sec
Progress: 100%, response time: 1.158 sec
(5 rows, 1.158 sec, 60 B inserted)

default> insert overwrite into table4 select id, name from table1;
Progress: 100%, response time: 0.468 sec
(5 rows, 0.468 sec, 65 B inserted)

As above, tajo can run a query for inserting data. But in partitioned table, tajo made null value for partition column as follows:

hdfs dfs -ls /tajo/warehouse/default/table4
Found 1 items
drwxr-xr-x   - blrunner supergroup          0 2014-05-26 16:27 /tajo/warehouse/default/table4/part=

Thus we need to make a syntax exception for blocking null partition value.