Component family |
Big Data / Google BigQuery | |
Basic settings |
Schema and Edit Schema |
A schema is a row description. It defines the number of fields (columns) to be processed and passed on to the next component. The schema is either Built-In or stored remotely in the Repository. Click Edit schema to make changes to the schema. If the current schema is of the Repository type, three options are available:
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Property type |
Built-In: You create and store the schema locally for this component only. Related topic: see Talend Studio User Guide. |
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Repository: You have already created the schema and stored it in the Repository. You can reuse it in various projects and Job designs. Related topic: see Talend Studio User Guide. |
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File name |
Browse, or enter the path to the .txt or .csv file you need to generate. |
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Append |
Select the check box to write new data at the end of the existing data. Otherwise, the existing data will be overwritten. |
Advanced settings |
Field Separator |
Enter character, string or regular expression to separate fields for the transferred data. |
Create directory if not exists |
Select this check box to create the directory you defined in the File field for Google Cloud Storage, if it does not exist. | |
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Custom the flush buffer size |
Enter the number of rows to be processed before the memory is freed. |
Check disk space |
Select the this check box to throw an exception during execution if the disk is full. | |
Encoding |
Select the encoding from the list or select Custom and define it manually. This field is compulsory for database data handling. | |
tStatCatcher Statistics |
Select this check box to collect the log data at the component level/ | |
Global Variables |
NB_LINE: the number of rows read by an input component or transferred to an output component. This is an After variable and it returns an integer. ERROR_MESSAGE: the error message generated by the component when an error occurs. This is an After variable and it returns a string. This variable functions only if the Die on error check box is cleared, if the component has this check box. A Flow variable functions during the execution of a component while an After variable functions after the execution of the component. To fill up a field or expression with a variable, press Ctrl + Space to access the variable list and choose the variable to use from it. For further information about variables, see Talend Studio User Guide. | |
Usage |
This is an output component which needs the data provided by its preceding component. | |
Log4j | If you are using a subscription-based version of the Studio, the activity of this component can be logged using the log4j feature. For more information on this feature, see Talend Studio User Guide. For more information on the log4j logging levels, see the Apache documentation at http://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/Level.html. | |
Limitation |
N/A |