Sql – How to get input file name as column in AWS Athena external tables

amazon s3amazon-athenaamazon-web-servicesprestosql

I have external tables created in AWS Athena to query S3 data, however, the location path has 1000+ files. So I need the corresponding filename of the record to be displayed as a column in the table.

select file_name , col1 from table where file_name = "test20170516"

In short, I need to know INPUT__FILE__NAME(hive) equivalent in AWS Athena Presto or any other ways to achieve the same.

Best Answer

You can do this with the $path pseudo column.

select "$path" from table

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There are a few steps to see the tables in an SQLite database:

List the tables in your database:
```
.tables
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List how the table looks:
```
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Print the entire table:
```
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List all of the available SQLite prompt commands:
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Search Tables:

SELECT      c.name  AS 'ColumnName'
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JOIN        sys.tables  t   ON c.object_id = t.object_id
WHERE       c.name LIKE '%MyName%'
ORDER BY    TableName
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Search Tables and Views:

SELECT      COLUMN_NAME AS 'ColumnName'
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WHERE       COLUMN_NAME LIKE '%MyName%'
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