Glue custom classifiers for CSV with non standard delimiter
I am trying to use AWS Glue to crawl a data set and make it available to query in Athena. My data set is a delimited text file using ^ to separate columns. Glue is not able to infer the schema for this data as the CSV classifier only recognises comma (,), pipe (|), tab (t), semicolon (;), and Ctrl-A (u0001). Is there a way of updating this classifer to include non standard delimeters? The option to build custom classifiers only seems to support Grok, JSON or XML which are not applicable in this case.
amazon-web-services aws-glue
edited Nov 12 at 12:48
Vadim Kotov
4,30153247
asked Nov 12 at 12:39
Becki Fereday
1
add a comment |
I am trying to use AWS Glue to crawl a data set and make it available to query in Athena. My data set is a delimited text file using ^ to separate columns. Glue is not able to infer the schema for this data as the CSV classifier only recognises comma (,), pipe (|), tab (t), semicolon (;), and Ctrl-A (u0001). Is there a way of updating this classifer to include non standard delimeters? The option to build custom classifiers only seems to support Grok, JSON or XML which are not applicable in this case.
amazon-web-services aws-glue
edited Nov 12 at 12:48
Vadim Kotov
4,30153247
asked Nov 12 at 12:39
Becki Fereday
1
add a comment |
I am trying to use AWS Glue to crawl a data set and make it available to query in Athena. My data set is a delimited text file using ^ to separate columns. Glue is not able to infer the schema for this data as the CSV classifier only recognises comma (,), pipe (|), tab (t), semicolon (;), and Ctrl-A (u0001). Is there a way of updating this classifer to include non standard delimeters? The option to build custom classifiers only seems to support Grok, JSON or XML which are not applicable in this case.
amazon-web-services aws-glue
edited Nov 12 at 12:48
Vadim Kotov
4,30153247
asked Nov 12 at 12:39
Becki Fereday
1
I am trying to use AWS Glue to crawl a data set and make it available to query in Athena. My data set is a delimited text file using ^ to separate columns. Glue is not able to infer the schema for this data as the CSV classifier only recognises comma (,), pipe (|), tab (t), semicolon (;), and Ctrl-A (u0001). Is there a way of updating this classifer to include non standard delimeters? The option to build custom classifiers only seems to support Grok, JSON or XML which are not applicable in this case.
amazon-web-services aws-glue
amazon-web-services aws-glue
edited Nov 12 at 12:48
Vadim Kotov
4,30153247
asked Nov 12 at 12:39
Becki Fereday
1
edited Nov 12 at 12:48
Vadim Kotov
4,30153247
asked Nov 12 at 12:39
Becki Fereday
1
edited Nov 12 at 12:48
Vadim Kotov
4,30153247
edited Nov 12 at 12:48
Vadim Kotov
4,30153247
edited Nov 12 at 12:48
Vadim Kotov
4,30153247
4,30153247
asked Nov 12 at 12:39
Becki Fereday
1
asked Nov 12 at 12:39
Becki Fereday
1
asked Nov 12 at 12:39
Becki Fereday
1
1
add a comment |
add a comment |
1 Answer
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You will need to create a custom classifier using the custom Grok pattern and use that in the crawler. Suppose your data is like below with four fields:
qwe^123^22.3^2019-09-02
To process the above data, your custom pattern will look like below:
%{NOTSPACE:name}^%{INT:class_num}^%{BASE10NUM:balance}^%{CUSTOMDATE:balance_date}
Please let me know if that worked for you.
answered Nov 13 at 21:35
Tanveer Uddin
42218
add a comment |
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1 Answer
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1 Answer
1
active
oldest
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active
oldest
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active
oldest
votes
You will need to create a custom classifier using the custom Grok pattern and use that in the crawler. Suppose your data is like below with four fields:
qwe^123^22.3^2019-09-02
To process the above data, your custom pattern will look like below:
%{NOTSPACE:name}^%{INT:class_num}^%{BASE10NUM:balance}^%{CUSTOMDATE:balance_date}
Please let me know if that worked for you.
answered Nov 13 at 21:35
Tanveer Uddin
42218
add a comment |
You will need to create a custom classifier using the custom Grok pattern and use that in the crawler. Suppose your data is like below with four fields:
qwe^123^22.3^2019-09-02
To process the above data, your custom pattern will look like below:
%{NOTSPACE:name}^%{INT:class_num}^%{BASE10NUM:balance}^%{CUSTOMDATE:balance_date}
Please let me know if that worked for you.
answered Nov 13 at 21:35
Tanveer Uddin
42218
add a comment |
You will need to create a custom classifier using the custom Grok pattern and use that in the crawler. Suppose your data is like below with four fields:
qwe^123^22.3^2019-09-02
To process the above data, your custom pattern will look like below:
%{NOTSPACE:name}^%{INT:class_num}^%{BASE10NUM:balance}^%{CUSTOMDATE:balance_date}
Please let me know if that worked for you.
answered Nov 13 at 21:35
Tanveer Uddin
42218
You will need to create a custom classifier using the custom Grok pattern and use that in the crawler. Suppose your data is like below with four fields:
qwe^123^22.3^2019-09-02
To process the above data, your custom pattern will look like below:
%{NOTSPACE:name}^%{INT:class_num}^%{BASE10NUM:balance}^%{CUSTOMDATE:balance_date}
Please let me know if that worked for you.
answered Nov 13 at 21:35
Tanveer Uddin
42218
answered Nov 13 at 21:35
Tanveer Uddin
42218
answered Nov 13 at 21:35
Tanveer Uddin
42218
answered Nov 13 at 21:35
Tanveer Uddin
42218
42218
add a comment |
add a comment |
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