Snowflake

Send processed data from Unstructured to Snowflake.

The requirements are as follows.

• A Snowflake account and its account identifier.

  To get the identifier for the current Snowflake account:

  1. Log in to Snowsight with your Snowflake account.
  2. In Snowsight, on the navigation menu, click your username, and then click Account > View account details.
  3. On the Account tab, note the value of the Account Identifier field.

  Alternatively, the following Snowflake query returns the current account’s identifier:

  SELECT CURRENT_ORGANIZATION_NAME() || '-' || CURRENT_ACCOUNT_NAME() AS "Account Identifier"
  

• The Snowflake user’s login name (not its username) and its password in the account.

  To view the login name for a user:

  1. Log in to Snowsight with your Snowflake account.
  2. In Snowsight, on the navigation menu, click Admin > Users & Roles.
  3. On the Users tab, in the list of available users, click the name of the target user.
  4. In the About tile, note the Login Name for the user.

  Alternatively, the following Snowflake query returns information about the user with the username of <my-user>, including their login_name value representing their login name:

  SHOW USERS LIKE '<my-user>';
  

• The name of the Snowflake role that the user belongs to and that also has sufficient access to the Snowflake database, schema, table, and host.

  • To create a database in Snowflake, the role needs to be granted CREATE DATABASE privilege at the current account level; and USAGE privilege on the warehouse that is used to create the database.
  • To create a schema in a database in Snowflake, the role needs to be granted USAGE privilege on the database and the warehouse that is used to create the schema; and CREATE SCHEMA on the database.
  • To create a table in a schema in Snowflake, the role needs to be granted USAGE privilege on the database and schema and the warehouse that is used to create the table; and CREATE TABLE on the schema.
  • To write to a table in Snowflake, the role needs to be granted USAGE privilege on the database and schema and the warehouse that is used to write to the table; and INSERT on the table.
  • To read from a table in Snowflake, the role needs to be granted USAGE privilege on the database and schema and the warehouse that is used to write to the table; and SELECT on the table.

  To view a list of available roles in the current Snowflake account:

  1. Log in to Snowsight with your Snowflake account.
  2. In Snowsight, on the navigation menu, click Admin > Users & Roles.
  3. Click the Roles tab.

  Alternatively, the following Snowflake query returns a list of available roles in the current account:

  SHOW ROLES;
  

  Grant privileges to a role. Learn more.

• The Snowflake warehouse’s hostname and its port number in the account.

  To view a list of available warehouses in the current Snowflake account:

  1. Log in to Snowsight with your Snowflake account.
  2. In Snowsight, on the navigation menu, click Admin > Warehouses. This view does not provide access to the warehouses’ hostnames or port numbers. To get this information, you must run a Snowflake query.

  The following Snowflake query returns a list of available warehouse types, hostnames, and port numbers in the current account. Look for the row with a type of SNOWFLAKE_DEPLOYMENT:

  SELECT t.VALUE:type::VARCHAR as type,
         t.VALUE:host::VARCHAR as host,
         t.VALUE:port as port
  FROM TABLE(FLATTEN(input => PARSE_JSON(SYSTEM$ALLOWLIST()))) AS t;
  

• The name of the Snowflake database in the account.

  To view a list of available databases in the current Snowflake account:

  1. Log in to Snowsight with your Snowflake account.
  2. In Snowsight, on the navigation menu, click Data > Databases.

  Alternatively, the following Snowflake query returns a list of available databases in the current account:

  SHOW DATABASES;
  

• The name of the schema in the database.

  To view a list of available schemas for a database in the current Snowflake account:

  1. Log in to Snowsight with your Snowflake account.
  2. In Snowsight, on the navigation menu, click Data > Databases.
  3. Expand the name of the target database.

  Alternatively, the following Snowflake query returns a list of available schemas in the current account:

  SHOW SCHEMAS;
  

  The following Snowflake query returns a list of available schemas for the database named <database-name> in the current account:

  SHOW SCHEMAS IN DATABASE <database-name>;
  

• The name of the table in the schema.

  To view a list of available tables for a schema in a database in the current Snowflake account:

  1. Log in to Snowsight with your Snowflake account.
  2. In Snowsight, on the navigation menu, click Data > Databases.
  3. Expand the name of the database that contains the target schema.
  4. Expand the name of the target schema.
  5. Expand Tables.

  Alternatively, the following Snowflake query returns a list of available tables for the schema named <schema_name> in the datbase named <database-name> in the current account:

  SHOW TABLES IN SCHEMA <database-name>.<schema_name>;
  

  Snowflake requires the target table to have a defined schema before Unstructured can write to the table. The recommended table schema for Unstructured is as follows:

  SQL

  CREATE TABLE ELEMENTS (
    ID VARCHAR(36) NOT NULL DEFAULT UUID_STRING(),
    RECORD_ID VARCHAR,
    ELEMENT_ID VARCHAR,
    TEXT VARCHAR,
    EMBEDDINGS ARRAY,
    TYPE VARCHAR,
    SYSTEM VARCHAR,
    LAYOUT_WIDTH NUMBER,
    LAYOUT_HEIGHT NUMBER,
    POINTS VARCHAR,
    URL VARCHAR,
    VERSION VARCHAR,
    DATE_CREATED TIMESTAMP_TZ,
    DATE_MODIFIED TIMESTAMP_TZ,
    DATE_PROCESSED TIMESTAMP_TZ,
    PERMISSIONS_DATA VARCHAR,
    RECORD_LOCATOR VARCHAR,
    CATEGORY_DEPTH NUMBER,
    PARENT_ID VARCHAR,
    ATTACHED_FILENAME VARCHAR,
    FILETYPE VARCHAR,
    LAST_MODIFIED TIMESTAMP_TZ,
    FILE_DIRECTORY VARCHAR,
    FILENAME VARCHAR,
    LANGUAGES ARRAY,
    PAGE_NUMBER VARCHAR,
    LINKS VARCHAR,
    PAGE_NAME VARCHAR,
    LINK_URLS ARRAY,
    LINK_TEXTS ARRAY,
    SENT_FROM ARRAY,
    SENT_TO ARRAY,
    SUBJECT VARCHAR,
    SECTION VARCHAR,
    HEADER_FOOTER_TYPE VARCHAR,
    EMPHASIZED_TEXT_CONTENTS ARRAY,
    EMPHASIZED_TEXT_TAGS ARRAY,
    TEXT_AS_HTML VARCHAR,
    REGEX_METADATA VARCHAR,
    DETECTION_CLASS_PROB NUMBER,
    PRIMARY KEY (ID),
    PARTITIONER_TYPE VARCHAR
  );
  

• The name of the column in the table that uniquely identifies each record (for example, RECORD_ID).

To create the destination connector:

1. On the sidebar, click Connectors.
2. Click Destinations.
3. Cick New or Create Connector.
4. Give the connector some unique Name.
5. In the Provider area, click Snowflake.
6. Click Continue.
7. Follow the on-screen instructions to fill in the fields as described later on this page.
8. Click Save and Test.

Fill in the following fields:

• Name (required): A unique name for this connector.
• Account ID (required): The target Snowflake account’s identifier.
• Role (required): The name of the Snowflake role that the user belongs to. This role must have the appropriate access to the target Snowflake warehouse, database, schema, and table.
• User (required): The target Snowflake user’s login name (not their username).
• Password (required): The user’s password.
• Host (required): The hostname of the target Snowflake warehouse.
• Port (required): The warehouse’s port number. The default is 443 if not otherwise specified.
• Database (required): The name of the target Snowflake database.
• Schema (required): The name of the target Snowflake schema within the database.
• Table (required for source connector only): The name of the target Snowflake table within the database’s schema. For the destination connector, the default is elements if not otherwise specified.
• Columns (source connector only): A comma-separated list of columns to fetch from the table. By default, all columns are fetched unless otherwise specified.
• ID Column (required, source connector only): The name of the column that uniquely identifies each record in the table.
• Record ID Key (destination connector only): The name of the column that uniquely identifies each record in the table. The default is record_id if not otherwise specified.
• Batch Size (required): The maximum number of rows to fetch for each batch. The default is 50 if not otherwise specified.