Redshift

Driver information

Connection string format, see https://www.connectionstrings.com/postgresql/

Server=<your-redshift-server>;Port=5439;Database=<your-redshift-database-name>;
User Id=<your-redshift-user>;Password=<your-redshift-password>
Supported versions: Redshift 1.0.2* and later
Supports transactional DDL Yes (Per session, per version, per statement)
Supports CSV bulk import Yes
Supports batch statements No, .sql files are executed as single batch
Driver package npgsql, see https://www.npgsql.org/doc/index.html

Getting started

Install yuniql CLI with Chocolatey or use alternative ways listed here https://yuniql.io/docs/install-yuniql/

choco install yuniql

Download samples for Redshift. For samples of other platforms, visit https://github.com/rdagumampan/yuniql/tree/master/samples

git clone https://github.com/rdagumampan/yuniql.git c:\temp\yuniql
cd c:\temp\yuniql\samples\basic-redshift-sample

Prepare your connection string and environment variables. You can also pass this directly as CLI parameters. For more connection string samples, visit https://www.connectionstrings.com/postgresql.

SETX YUNIQL_PLATFORM "redshift"
SETX YUNIQL_WORKSPACE "c:\temp\yuniql\samples\basic-redshift-sample"
SETX YUNIQL_CONNECTION_STRING "Server=<your-redshift-server>;Port=5439;Database=<your-redshift-database-name>;User Id=<your-redshift-user>;Password=<your-redshift-password>"

Apply migrations with yuniql run and specify the target platform with --platform. Yuniql discovers the project directory, sorts all versions, creates the target database if it doesn’t exist and runs all migration steps in the right order. These includes .sql files, directories, subdirectories, and csv files.

yuniql run --platform redshift -a --debug
yuniql list --platform redshift

Running yuniql v1.1.55 for windows-x64
Copyright 2019 (C) Rodel E. Dagumampan. Apache License v2.0
Visit https://yuniql.io for documentation & more samples

+---------------+----------------------+------------+---------------+----------------------+---------------+
| SchemaVersion | AppliedOnUtc         | Status     | AppliedByUser | AppliedByTool        | Duration      |
+---------------+----------------------+------------+---------------+----------------------+---------------+
| v0.00         | 2021-03-02 21:41:20Z | Successful | yuniqldev     | yuniql-cli v1.1.55.0 | 1569 ms / 1 s |
| v0.01         | 2021-03-02 21:41:22Z | Successful | yuniqldev     | yuniql-cli v1.1.55.0 | 1370 ms / 1 s |
| v0.02         | 2021-03-02 21:41:26Z | Successful | yuniqldev     | yuniql-cli v1.1.55.0 | 3277 ms / 3 s |
+---------------+----------------------+------------+---------------+----------------------+---------------+

Verify results with your preferred Redshift Client. A query from Redshift Editor Plane yields the following results.

yuniql-evodb

Known Issues and limitations
  • Only supports username and password authentication on connection string. Advanced token-based autnentication have not been tested but could just work, please try and send us feedback.
  • Driver used is primary for PostgreSql databases and limitation may emerge as Redshift continues to develop. See compatibility notes here https://www.npgsql.org/doc/compatibility.html#amazon-redshift
Found bugs?

Help us improve further please create an issue.

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