aws_s3

Overview

Version

Build

You can build the RPM / DEB packages for aws_s3 using pig build:

pig build pkg aws_s3         # build RPM / DEB packages

Install

You can install aws_s3 directly. First, make sure the PGDG and PIGSTY repositories are added and enabled:

pig repo add pgsql -u          # Add repo and update cache

Install the extension using pig or apt/yum/dnf:

• Install
• pig
• dnf
• apt

pig install aws_s3;          # Install for current active PG version

pig ext install -y aws_s3 -v 18  # PG 18
pig ext install -y aws_s3 -v 17  # PG 17
pig ext install -y aws_s3 -v 16  # PG 16
pig ext install -y aws_s3 -v 15  # PG 15
pig ext install -y aws_s3 -v 14  # PG 14

dnf install -y aws_s3_18       # PG 18
dnf install -y aws_s3_17       # PG 17
dnf install -y aws_s3_16       # PG 16
dnf install -y aws_s3_15       # PG 15
dnf install -y aws_s3_14       # PG 14

apt install -y postgresql-18-aws-s3   # PG 18
apt install -y postgresql-17-aws-s3   # PG 17
apt install -y postgresql-16-aws-s3   # PG 16
apt install -y postgresql-15-aws-s3   # PG 15
apt install -y postgresql-14-aws-s3   # PG 14

Create Extension:

CREATE EXTENSION aws_s3;

Usage

aws_s3: PostgreSQL extension to import/export data from/to S3

Setup Credentials

Configure AWS credentials via PostgreSQL session variables:

SET aws_s3.access_key_id TO 'your_access_key';
SET aws_s3.secret_key TO 'your_secret_key';
SET aws_s3.session_token TO 'optional_session_token';  -- if using temporary credentials

For local development with LocalStack:

SET aws_s3.endpoint_url TO 'http://localhost:4566';

Import Data from S3

CREATE EXTENSION aws_s3;

CREATE TABLE animals (
  name text,
  age int
);

SELECT aws_s3.table_import_from_s3(
  'animals',
  '',
  '(FORMAT CSV, DELIMITER '','', HEADER true)',
  'my-bucket',
  'animals.csv',
  'us-east-1'
);

SELECT * FROM animals;

Parameters: table name, column list (empty string for all), COPY options, S3 bucket, S3 key, AWS region.

Export Data to S3

SELECT * FROM aws_s3.query_export_to_s3(
  'SELECT * FROM animals',
  'my-bucket',
  'export/animals.csv',
  'us-east-1',
  options := 'FORMAT CSV, HEADER true'
);

Parameters: SQL query, S3 bucket, S3 key, AWS region, COPY options.

Features

• Files with Content-Encoding=gzip metadata are automatically decompressed during import
• Credentials can be passed directly as function arguments or via session variables
• Uses the same COPY format options as PostgreSQL (CSV, TEXT, BINARY, with all related settings like DELIMITER, HEADER, NULL, etc.)