Как загрузить CSV с NULL-значениями в MySQL с помощью Scriptella?

Question

У меня есть CSV-файл, который я пытаюсь загрузить в MySQL таблицу:

bkpgln,date,aircraft,tailnum,poe,time_out,pod,time_in,stops,inst_app,landings,nitelndgs,nav,se_retrgear,a_sel,a_mel,xc,day,night,act_inst,sim_inst,simulator,dualrecd,pic,p2,duration,remarks 
054801,2013-08-19,C182,N12345,IPT,17:12:00,UNV,17:54:00,,,,,0.7,,,,,,,,,,,,,,CAP 13-1-9999/A3/121 John Doe. CREW P/U (me). 
[...more lines like this...] 

Мой сценарий загрузки не удается, по-видимому, потому, что он не будет принимать значение NULL (пусто?) Значение для целого столбца , хотя в определении таблицы допустимы NULL. Я могу это исправить легко?

$ ./load-csv-with-scriptella 
Dec 20, 2013 3:01:31 PM <WARNING> XML configuration warning in file:/Users/gknauth/test/db-rebuild/etl.xml(3:79): Attribute "encoding" must be declared for element type "connection". 
Dec 20, 2013 3:01:31 PM <WARNING> XML configuration warning in file:/Users/gknauth/test/db-rebuild/etl.xml(5:128): Attribute "encoding" must be declared for element type "connection". 
Dec 20, 2013 3:01:31 PM <INFO> Execution Progress.Initializing properties: 1% 
Dec 20, 2013 3:01:31 PM <INFO> Execution Progress.Initialized connection id=in, CsvConnection, Dialect{CSV 1.0}, properties {}: 3% 
Dec 20, 2013 3:01:31 PM <INFO> Execution Progress.Initialized connection id=out, JdbcConnection{com.mysql.jdbc.JDBC4Connection}, Dialect{MySQL 5.1.72}, properties {}: 5% 
Dec 20, 2013 3:01:31 PM <INFO> Execution Progress./etl/query[1] prepared: 10% 
Dec 20, 2013 3:01:31 PM <INFO> Registered JMX mbean: scriptella:type=etl,url="file:/Users/gknauth/test/db-rebuild/etl.xml" 
Dec 20, 2013 3:01:31 PM <WARNING> Unable to rollback transaction for connection CsvConnection: Transactions are not supported by CsvConnection 
Dec 20, 2013 3:01:31 PM <SEVERE> Script /Users/gknauth/test/db-rebuild/etl.xml execution failed. 
Location: /etl/query[1]/script[1] 
JDBC provider exception: Unable to execute statement 
Error statement: 
INSERT INTO logbook 
(bkpgln,date,aircraft,tailnum,poe,time_out,pod,time_in,stops,inst_app,landings,nitelndgs,nav,se_retrgear,a_sel,a_mel,xc,day,night,act_inst,sim_inst,simulator,dualrecd,pic,p2,duration,remarks) 
VALUES 
(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?) 
. Parameters: [054801, 2013-08-19, C182, N12345, IPT, 17:12:00, UNV, 17:54:00, , , , , 0.7, , , , , , , , , , , , , , CAP 13-1-9999/A3/121 John Doe. CREW P/U (me).] 
Error codes: [HY000, 1366] 
Driver exception: java.sql.SQLException: Incorrect integer value: '' for column 'inst_app' at row 1 

Вот мой etl.xml:

<!DOCTYPE etl SYSTEM "http://scriptella.javaforge.com/dtd/etl.dtd"> 
<etl> 
    <connection id="in" driver="csv" url="logbook-update.csv" encoding="UTF-8"/> 
    <connection id="out" driver="mysql" url="jdbc:mysql://localhost/flying" 
     classpath="/Users/gknauth/lib/jar/mysql-connector-java-5.1.23-bin.jar" user="username" password="password" encoding="UTF-8"/> 
    <query connection-id="in"> 
    <script connection-id="out"> 
     INSERT INTO logbook 
(bkpgln,date,aircraft,tailnum,poe,time_out,pod,time_in,stops,inst_app,landings,nitelndgs,nav,se_retrgear,a_sel,a_mel,xc,day,night,act_inst,sim_inst,simulator,dualrecd,pic,p2,duration,remarks) 
     VALUES 
     (?bkpgln,?date,?aircraft,?tailnum,?poe,?time_out,?pod,?time_in,?stops,?inst_app,?landings,?nitelndgs,?nav,?se_retrgear,?a_sel,?a_mel,?xc,?day,?night,?act_inst,?sim_inst,?simulator,?dualrecd,?pic,?p2,?duration,?remarks) 
    </script> 
    </query> 
</etl> 

Answer 1

Я понял ответ на свой вопрос. Вот мое исправление:

$ diff etl.xml{~,} 
3c3,5 
< <connection id="in" driver="csv" url="logbook-update.csv" encoding="UTF-8"/> 
--- 
> <connection id="in" driver="csv" url="logbook-update.csv" encoding="UTF-8"> 
>  null_string= 
>  </connection>