Athena Query

Overview

You can use this Snap to execute SQL queries on data stored in Amazon S3 using Amazon Athena.


Athena Query Overview

  • This is a Write-type Snap.
  • Does not support Ultra Tasks

Prerequisites

None.

Known issues

  • ARRAY, STRUCT, and MAP data types are not supported in SELECT queries. If used, it may result in incorrect values in the output documents.
  • This Snap can fail on a table created with ORC files in LZO compression because of an Athena service defect.

Snap views

Type Description Examples of upstream and downstream Snaps
Input This Snap atmost has one document input view.
Output This Snap atmost has one document output view that provides the result of the Athena query execution.
Learn more about Error handling.

Snap settings

Legend:
  • Expression icon (): Allows using JavaScript syntax to access SnapLogic Expressions to set field values dynamically (if enabled). If disabled, you can provide a static value. Learn more.
  • SnapGPT (): Generates SnapLogic Expressions based on natural language using SnapGPT. Learn more.
  • Suggestion icon (): Populates a list of values dynamically based on your Snap configuration. You can select only one attribute at a time using the icon. Type into the field if it supports a comma-separated list of values.
  • Upload : Uploads files. Learn more.
Learn more about the icons in the Snap settings dialog.
Field/Field set Type Description
Label String

Required. Specify a unique name for the Snap. Modify this to be more appropriate, especially if more than one of the same Snaps is in the pipeline.

Default value: Athena Query

Example: Athena Query data
Database String/Expression/ Suggestion Specify the name of Athena database, that is a logical grouping of Athena tables.
Tip: This field can be left blank if the query contains the name of Athena database.

Default value: N/A

Example: mydatabase
Query String/Expression Required. Specify the SQL query to be executed by Athena. Ensure the query follows the syntax supported by Amazon Athena and references data stored in S3. Learn more.

Default value: N/A

Example: SELECT * FROM mytable
Maximum retries Integer/Expression Required. Specify the maximum number of retry attempts.

Default value: 3

Example: 10
Snap execution Dropdown list
Choose one of the three modes in which the Snap executes. Available options are:
  • Validate & Execute: Performs limited execution of the Snap and generates a data preview during pipeline validation. Subsequently, performs full execution of the Snap (unlimited records) during pipeline runtime.
  • Execute only: Performs full execution of the Snap during pipeline execution without generating preview data.
  • Disabled: Disables the Snap and all Snaps that are downstream from it.

Default value: Execute only

Default value: Validate & Execute

Examples