community[minor]: AWS Athena Document Loader (#15625)

- **Description:** Adds the document loader for [AWS
Athena](https://aws.amazon.com/athena/), a serverless and interactive
analytics service.
  - **Dependencies:** Added boto3 as a dependency

docs/docs/integrations/document_loaders/athena.ipynb

@@ -0,0 +1,110 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "id": "MwTWzDxYgbrR"
+   },
+   "source": [
+    "# Athena\n",
+    "\n",
+    "This notebooks goes over how to load documents from AWS Athena"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "id": "F0zaLR3xgWmO"
+   },
+   "outputs": [],
+   "source": [
+    "! pip install boto3"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "id": "076NLjfngoWJ"
+   },
+   "outputs": [],
+   "source": [
+    "from langchain_community.document_loaders.athena import AthenaLoader"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "id": "XpMRQwU9gu44"
+   },
+   "outputs": [],
+   "source": [
+    "database_name = \"my_database\"\n",
+    "s3_output_path = \"s3://my_bucket/query_results/\"\n",
+    "query = \"SELECT * FROM my_table\"\n",
+    "profile_name = \"my_profile\"\n",
+    "\n",
+    "loader = AthenaLoader(\n",
+    "    query=query,\n",
+    "    database=database_name,\n",
+    "    s3_output_uri=s3_output_path,\n",
+    "    profile_name=profile_name,\n",
+    ")\n",
+    "\n",
+    "documents = loader.load()\n",
+    "print(documents)"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "id": "5IBapL3ejoEt"
+   },
+   "source": [
+    "Example with metadata columns"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {
+    "id": "wMx6nI1qjryD"
+   },
+   "outputs": [],
+   "source": [
+    "database_name = \"my_database\"\n",
+    "s3_output_path = \"s3://my_bucket/query_results/\"\n",
+    "query = \"SELECT * FROM my_table\"\n",
+    "profile_name = \"my_profile\"\n",
+    "metadata_columns = [\"_row\", \"_created_at\"]\n",
+    "\n",
+    "loader = AthenaLoader(\n",
+    "    query=query,\n",
+    "    database=database_name,\n",
+    "    s3_output_uri=s3_output_path,\n",
+    "    profile_name=profile_name,\n",
+    "    metadata_columns=metadata_columns,\n",
+    ")\n",
+    "\n",
+    "documents = loader.load()\n",
+    "print(documents)"
+   ]
+  }
+ ],
+ "metadata": {
+  "colab": {
+   "provenance": []
+  },
+  "kernelspec": {
+   "display_name": "Python 3",
+   "name": "python3"
+  },
+  "language_info": {
+   "name": "python"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 0
+}