-
Notifications
You must be signed in to change notification settings - Fork 3k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Various style fixes and cleanup (#15) (#17) Co-authored-by: Martin Traverso <[email protected]> Various style fixes and cleanup (#15) Update the github CI (#12) * Add Snowflake JDBC Connector * Add snowflake in the ci Add Snowflake JDBC Connector (#11) Had to redo the connector because all the rebases caused havoc
- Loading branch information
Showing
26 changed files
with
2,875 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,96 @@ | ||
| # Snowflake connector | ||
|
|
||
| ```{raw} html | ||
| <img src="../_static/img/snowflake.png" class="connector-logo"> | ||
| ``` | ||
|
|
||
| The Snowflake connector allows querying and creating tables in an | ||
| external [Snowflake](https://www.snowflake.com/) account. This can be used to join data between | ||
| different systems like Snowflake and Hive, or between two different | ||
| Snowflake accounts. | ||
|
|
||
| ## Configuration | ||
|
|
||
| To configure the Snowflake connector, create a catalog properties file | ||
| in `etc/catalog` named, for example, `example.properties`, to | ||
| mount the Snowflake connector as the `snowflake` catalog. | ||
| Create the file with the following contents, replacing the | ||
| connection properties as appropriate for your setup: | ||
|
|
||
| ```none | ||
| connector.name=snowflake | ||
| connection-url=jdbc:snowflake://<account>.snowflakecomputing.com | ||
| connection-user=root | ||
| connection-password=secret | ||
| snowflake.account=account | ||
| snowflake.database=database | ||
| snowflake.role=role | ||
| snowflake.warehouse=warehouse | ||
| ``` | ||
|
|
||
| ### Arrow serialization support | ||
|
|
||
| This is an experimental feature which introduces support for using Apache Arrow | ||
| as the serialization format when reading from Snowflake. Please note there are | ||
| a few caveats: | ||
|
|
||
| - Using Apache Arrow serialization is disabled by default. In order to enable | ||
| it, add `--add-opens=java.base/java.nio=ALL-UNNAMED` to the Trino | ||
| {ref}`jvm-config`. | ||
|
|
||
| ### Multiple Snowflake databases or accounts | ||
|
|
||
| The Snowflake connector can only access a single database within | ||
| a Snowflake account. Thus, if you have multiple Snowflake databases, | ||
| or want to connect to multiple Snowflake accounts, you must configure | ||
| multiple instances of the Snowflake connector. | ||
|
|
||
| % snowflake-type-mapping: | ||
|
|
||
| ## Type mapping | ||
|
|
||
| Trino supports the following Snowflake data types: | ||
|
|
||
| | Snowflake Type | Trino Type | | ||
| | -------------- | -------------- | | ||
| | `boolean` | `boolean` | | ||
| | `tinyint` | `bigint` | | ||
| | `smallint` | `bigint` | | ||
| | `byteint` | `bigint` | | ||
| | `int` | `bigint` | | ||
| | `integer` | `bigint` | | ||
| | `bigint` | `bigint` | | ||
| | `float` | `real` | | ||
| | `real` | `real` | | ||
| | `double` | `double` | | ||
| | `decimal` | `decimal(P,S)` | | ||
| | `varchar(n)` | `varchar(n)` | | ||
| | `char(n)` | `varchar(n)` | | ||
| | `binary(n)` | `varbinary` | | ||
| | `varbinary` | `varbinary` | | ||
| | `date` | `date` | | ||
| | `time` | `time` | | ||
| | `timestampntz` | `timestamp` | | ||
| | `timestamptz` | `timestampTZ` | | ||
| | `timestampltz` | `timestampTZ` | | ||
|
|
||
| Complete list of [Snowflake data types](https://docs.snowflake.com/en/sql-reference/intro-summary-data-types.html). | ||
|
|
||
| (snowflake-sql-support)= | ||
|
|
||
| ## SQL support | ||
|
|
||
| The connector provides read access and write access to data and metadata in | ||
| a Snowflake database. In addition to the {ref}`globally available | ||
| <sql-globally-available>` and {ref}`read operation <sql-read-operations>` | ||
| statements, the connector supports the following features: | ||
|
|
||
| - {doc}`/sql/insert` | ||
| - {doc}`/sql/delete` | ||
| - {doc}`/sql/truncate` | ||
| - {doc}`/sql/create-table` | ||
| - {doc}`/sql/create-table-as` | ||
| - {doc}`/sql/drop-table` | ||
| - {doc}`/sql/alter-table` | ||
| - {doc}`/sql/create-schema` | ||
| - {doc}`/sql/drop-schema` |
Loading
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
Oops, something went wrong.