Hello,
reading my data from MySql DB I wanted to add a new column counting row number inside each group on my definded sql, so I made this sql that is working on MySql Workbech:
This is the workbench output:
mysql.jpg
My problem appears when using this sql inside a 'Table input step'. Log says:
2013/12/20 13:14:17 - get all cities.0 - ERROR (version 5.0.1-stable, build 1 from 2013-11-15_16-08-58 by buildguy) : Unexpected error
2013/12/20 13:14:17 - get all cities.0 - ERROR (version 5.0.1-stable, build 1 from 2013-11-15_16-08-58 by buildguy) : org.pentaho.di.core.exception.KettleDatabaseException:
2013/12/20 13:14:17 - get all cities.0 - An error occurred executing SQL:
2013/12/20 13:14:17 - get all cities.0 - SET @running = 0;
2013/12/20 13:14:17 - get all cities.0 - SELECT country_id, province, city, rownum
2013/12/20 13:14:17 - get all cities.0 - FROM (
2013/12/20 13:14:17 - get all cities.0 - SELECT country_id, province, city,
2013/12/20 13:14:17 - get all cities.0 - @running := if( @previous=concat(country_id, province), @running, 0) + 1 as rownum,
2013/12/20 13:14:17 - get all cities.0 - @previous := concat(country_id, province)
2013/12/20 13:14:17 - get all cities.0 - FROM (
2013/12/20 13:14:17 - get all cities.0 - SELECT distinct country_id, c.code, province, city
2013/12/20 13:14:17 - get all cities.0 - FROM address a
2013/12/20 13:14:17 - get all cities.0 - JOIN
2013/12/20 13:14:17 - get all cities.0 - country c
2013/12/20 13:14:17 - get all cities.0 - ON a.country_id = c.id
2013/12/20 13:14:17 - get all cities.0 - ) origin
2013/12/20 13:14:17 - get all cities.0 - ) origin_with_rownum
2013/12/20 13:14:17 - get all cities.0 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'SELECT country_id, province, city, rownum
2013/12/20 13:14:17 - get all cities.0 - FROM (
2013/12/20 13:14:17 - get all cities.0 - SELECT country_id, province,' at line 2
2013/12/20 13:14:17 - get all cities.0 -
2013/12/20 13:14:17 - get all cities.0 - at org.pentaho.di.core.database.Database.openQuery(Database.java:1641)
2013/12/20 13:14:17 - get all cities.0 - at org.pentaho.di.trans.steps.tableinput.TableInput.doQuery(TableInput.java:233)
but i am unable to find what's wrong with my sintaxis, any ideas? is it possible that variables aren't allowed on 'table input step' sql?
Regards.
reading my data from MySql DB I wanted to add a new column counting row number inside each group on my definded sql, so I made this sql that is working on MySql Workbech:
Code:
SET @running = 0;
SELECT country_id, province, city, rownum
FROM (
SELECT country_id, province, city,
@running := if( @previous=concat(country_id, province), @running, 0) + 1 as rownum,
@previous := concat(country_id, province)
FROM (
SELECT distinct country_id, c.code, province, city
FROM address a
JOIN
country c
ON a.country_id = c.id
) origin
) origin_with_rownummysql.jpg
My problem appears when using this sql inside a 'Table input step'. Log says:
2013/12/20 13:14:17 - get all cities.0 - ERROR (version 5.0.1-stable, build 1 from 2013-11-15_16-08-58 by buildguy) : Unexpected error
2013/12/20 13:14:17 - get all cities.0 - ERROR (version 5.0.1-stable, build 1 from 2013-11-15_16-08-58 by buildguy) : org.pentaho.di.core.exception.KettleDatabaseException:
2013/12/20 13:14:17 - get all cities.0 - An error occurred executing SQL:
2013/12/20 13:14:17 - get all cities.0 - SET @running = 0;
2013/12/20 13:14:17 - get all cities.0 - SELECT country_id, province, city, rownum
2013/12/20 13:14:17 - get all cities.0 - FROM (
2013/12/20 13:14:17 - get all cities.0 - SELECT country_id, province, city,
2013/12/20 13:14:17 - get all cities.0 - @running := if( @previous=concat(country_id, province), @running, 0) + 1 as rownum,
2013/12/20 13:14:17 - get all cities.0 - @previous := concat(country_id, province)
2013/12/20 13:14:17 - get all cities.0 - FROM (
2013/12/20 13:14:17 - get all cities.0 - SELECT distinct country_id, c.code, province, city
2013/12/20 13:14:17 - get all cities.0 - FROM address a
2013/12/20 13:14:17 - get all cities.0 - JOIN
2013/12/20 13:14:17 - get all cities.0 - country c
2013/12/20 13:14:17 - get all cities.0 - ON a.country_id = c.id
2013/12/20 13:14:17 - get all cities.0 - ) origin
2013/12/20 13:14:17 - get all cities.0 - ) origin_with_rownum
2013/12/20 13:14:17 - get all cities.0 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'SELECT country_id, province, city, rownum
2013/12/20 13:14:17 - get all cities.0 - FROM (
2013/12/20 13:14:17 - get all cities.0 - SELECT country_id, province,' at line 2
2013/12/20 13:14:17 - get all cities.0 -
2013/12/20 13:14:17 - get all cities.0 - at org.pentaho.di.core.database.Database.openQuery(Database.java:1641)
2013/12/20 13:14:17 - get all cities.0 - at org.pentaho.di.trans.steps.tableinput.TableInput.doQuery(TableInput.java:233)
but i am unable to find what's wrong with my sintaxis, any ideas? is it possible that variables aren't allowed on 'table input step' sql?
Regards.