aws s3api select-object-content <outfile>

This action filters the contents of an Amazon S3 object based on a simple structured query language (SQL) statement. In the request, along with the SQL expression, you must also specify a data serialization format (JSON, CSV, or Apache Parquet) of the object. Amazon S3 uses this format to parse object data into records, and returns only records that match the specified SQL expression. You must also specify the data serialization format for the response. This action is not supported by Amazon S3 on Outposts. For more information about Amazon S3 Select, see Selecting Content from Objects in the Amazon S3 User Guide. For more information about using SQL with Amazon S3 Select, see SQL Reference for Amazon S3 Select and S3 Glacier Select in the Amazon S3 User Guide. Permissions You must have s3:GetObject permission for this operation. Amazon S3 Select does not support anonymous access. For more information about permissions, see Specifying Permissions in a Policy in the Amazon S3 User Guide. Object Data Formats You can use Amazon S3 Select to query objects that have the following format properties: CSV, JSON, and Parquet - Objects must be in CSV, JSON, or Parquet format. UTF-8 - UTF-8 is the only encoding type Amazon S3 Select supports. GZIP or BZIP2 - CSV and JSON files can be compressed using GZIP or BZIP2. GZIP and BZIP2 are the only compression formats that Amazon S3 Select supports for CSV and JSON files. Amazon S3 Select supports columnar compression for Parquet using GZIP or Snappy. Amazon S3 Select does not support whole-object compression for Parquet objects. Server-side encryption - Amazon S3 Select supports querying objects that are protected with server-side encryption. For objects that are encrypted with customer-provided encryption keys (SSE-C), you must use HTTPS, and you must use the headers that are documented in the GetObject. For more information about SSE-C, see Server-Side Encryption (Using Customer-Provided Encryption Keys) in the Amazon S3 User Guide. For objects that are encrypted with Amazon S3 managed encryption keys (SSE-S3) and customer master keys (CMKs) stored in AWS Key Management Service (SSE-KMS), server-side encryption is handled transparently, so you don't need to specify anything. For more information about server-side encryption, including SSE-S3 and SSE-KMS, see Protecting Data Using Server-Side Encryption in the Amazon S3 User Guide. Working with the Response Body Given the response size is unknown, Amazon S3 Select streams the response as a series of messages and includes a Transfer-Encoding header with chunked as its value in the response. For more information, see Appendix: SelectObjectContent Response . GetObject Support The SelectObjectContent action does not support the following GetObject functionality. For more information, see GetObject. Range: Although you can specify a scan range for an Amazon S3 Select request (see SelectObjectContentRequest - ScanRange in the request parameters), you cannot specify the range of bytes of an object to return. GLACIER, DEEP_ARCHIVE and REDUCED_REDUNDANCY storage classes: You cannot specify the GLACIER, DEEP_ARCHIVE, or REDUCED_REDUNDANCY storage classes. For more information, about storage classes see Storage Classes in the Amazon S3 User Guide. Special Errors For a list of special errors for this operation, see List of SELECT Object Content Error Codes Related Resources GetObject GetBucketLifecycleConfiguration PutBucketLifecycleConfiguration

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