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  1. RED Enablement Packs
  2. Enablement Pack - Home
  3. Install Guides

RED Enablement Packs : WhereScape Enablement Pack for PostgreSQL- RED10

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This is a guide to installing the WhereScape Enablement Pack for PostgreSQL for WhereScape RED

Table of Contents


Table of Contents
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Prerequisites For PostgreSQL Metadata

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Before you begin the following prerequisites must be met:

  • Create Database and ODBC DSN  :
    • Supported* version of PostgreSQL (PostgreSQL 12 or higher)
      • A database to house the RED Metadata Repository.
      • A database for the Range Table DB (Optional)
      • A database to house scheduler (Optional)
  • Software Installations
    • WhereScape RED10 with valid license key entered and EULA accepted
    • WhereScape Enablement Pack for target database version RED10
  • Windows Powershell (64 bit) version 4 or higher
    • To check Windows Powershell Version:
      • Run below command in Windows Powershell

Get-Host|Select-Object Version

      • Run below command in Command Prompt

powershell $psversiontable

  • Run the following command using PowerShell
      • The security protocol TLS 1.0 and 1.1 used by PowerShell to communicate with PowerShell gallery has deprecated and TLS 1.2 has been made mandatory

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\[Net.ServicePointManager\]::SecurityProtocol = \[Net.ServicePointManager\]::SecurityProtocol -bor \[Net.SecurityProtocolType\]::Tls12
Register-PSRepository -Default -Verbose
Set-PSRepository -Name "PSGallery" -InstallationPolicy Trusted

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Install-Module -Name PoshProgressBar -SkipPublisherCheck -Force

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-WIP
Prerequisites For PostgreSQL Metadata -WIP

Prerequisites For Target Database PostgreSQL

Before you begin the following prerequisites must be met:

  • Create Database and ODBC

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  • DSN:
    • PostgreSQL
      • At least one schema available to use as a RED Data Warehouse Target

Enablement Pack Setup Scripts

The Enablement Pack Install process is entirely driven by scripts. The below table outlines these scripts, their purpose and if "Run as Administrator" is required. 

1

Setup_Enablement_Pack.ps1

Setup and configure a RED Metadata Repository for target database
If RED repository exists then updates the repository with 1.Templates 2.Scripts 3.Extended Properties 4.Datatype Mappings 5.UI Configurations 

             Yes           

New and Existing installations

2

install_WslPython_Modules.bat

Installs or updates WslPython Modules and required Python libraries on this machine.

             Yes              

New and Existing installations

3

import_python_templates.ps1

Imports or updates the Python Templates  to a RED Metadata Repository. Also includes any Script Imports

             No*           

Existing installations

4

set_default_templates.ps1

Applies the RED Connection defaults in a RED Metadata Repository for Python or Powershell templates.

             No*           

Existing installations

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Step-By-Step Guide

Setup and configure RED Metadata Repository

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Connection UI Config

Load UI Config

Amazon S3

Load From Amazon S3

Azure Data Lake  Storage Gen2

Load From Azure Data Lake  Storage Gen2

Google Cloud

Load From Google Cloud

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Install or Update WhereScape Python Templates (For Existing Installations)

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Set Connection defaults for a Template Set (For Existing Installations)

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Install Guides-Common
Install Guides-Common

Post Install Steps - Optional

If you used the script 'Setup_Enablement_Pack.ps1' then the following optional post-install steps are available

Configure Connections

There were Three connections added that will optionally require your attention:

  1. Connection: 'Database Source System' - this connection was

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  1. set up as an example source connection,
    • open it's properties and set it up for a source DB in your environment
    • or you can remove it if not required

Enable Script Launcher Toolbar

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Several stand-alone scripts

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provide some features such as "Ranged Loading", these scripts have been added to the Script Launcher menu but you will need to enable the menu toolbar item to see them.
To enable the Script Launcher menu in RED

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Troubleshooting and Tips

Run As Administrator

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select View>Toolbars>Script Launcher


 

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Troubleshooting and Tips - RED10
Troubleshooting and Tips - RED10

Windows Powershell Script Execution

On some systems Windows Powershell script execution is disabled by default. There are a number of workarounds for this which can be found by searching the term "Powershell Execution Policy".
Here is the most common workaround which WhereScape suggests, which does not permanently change the execution rights:
Start a Windows CMD prompt as Administrator, change directory to your script directory and run the WhereScape Powershell scripts with this command:

  • cmd:>Powershell -ExecutionPolicy Bypass -File .\<script_file_name.ps1>

Restarting failed scripts

Some of the setup scripts will track each step and output the step number when there is a failure. To restart from the failed step (or to skip the step) provide the parameter "-startAtStep <step number>" to the script.
Example: 
Powershell -ExecutionPolicy Bypass -File .\<script_file_name.ps1> -startAtStep 123
Tip: to avoid having to provide all the parameters again you can copy the full command line with parameters from the first "INFO" message from the beginning of the console output.

Python requirements for offline install

Additionally to the base Python installation being required, the WhereScape Python Template set also requires certain additional Python libraries. The install scripts uses the PIP (package manager) to download these libraries, however for offline installs you will need to install the required libraries yourself.
Required Python libraries/add-ons:

  • pywin32-ctypes
  • python-tds
  • pywin32
  • glob2
  • gzip-reader
  • regex
  • pyodbc

If a valid RED installation can not be found

If you have RED 10.x or higher installed but the script (Setup_Enablement_Pack.ps1) fails to find it on you system then you are most likely running PowerShell (x86) version which does not show installed 64 bit apps by default. Please open a 64 bit version of Powershell instead and re-run the script.

AWS PrivateLink Documentation

Please refer to the link below for the configuration of AWS PrivateLink for Snowflake:
{+}https://community.snowflake.com/s/article/Setup-On-Premise-DNS-to-work-in-conjunction-with-AWS-PrivateLink+Image Removed

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