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Day: February 17, 2023

tidyAML Now Available in CRAN

Published 2023-02-17 by Kevin Feasel

Steven Sanderson has a package make the big-time:

I’m excited to announce that the R package {tidyAML} is now officially available on CRAN! This package is designed to make it easy for users to perform automated machine learning (AutoML) using the tidymodels ecosystem. With a simple and intuitive interface, tidyAML allows users to quickly generate high-quality machine learning models without worrying about the underlying details.

Read on to learn more more about this package, as well as the broader healthyverse series of packages.

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Building an Internal Load Balancer in Azure

Published 2023-02-17 by Kevin Feasel

Vaibhav Kumar balances the scales:

The Internal load balancer manages load for a private network with any inbound access from the public platform. As in the diagram below, the primary load balancer managing load from the internet is a public-type load balancer. But, the VMs communication to storage or database is managed through a type-internal load balancer.

Click through for a walkthrough of the process.

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Pivoting in Postgres with CROSSTAB

Published 2023-02-17 by Kevin Feasel

Rajendra Gupta pivots abruptly:

A pivot table is a popular tool in Microsoft Excel that shows summarized data and helps you analyze it in various ways. Pivot tables collect and organize data from different rows, columns, and tables. Pivot tables are a great way to summarise data, and a handy tool for analyzing sales revenue, products sold, sales performance, etc.

Relational database tables store data in multiple rows and columns. You can calculate data using various functions such as count, sum, and average. SQL Server provides the PIVOT and UNPIVOT functions for working with pivot tables. How do we create the pivot tables in PostgreSQL? Let’s find it out.

Read on for a demonstration.

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Recommendations for Dedicated SQL Pool Data Modeling

Published 2023-02-17 by Kevin Feasel

Bhaskar Sharma has some advice:

In this article, I will discuss how to physically model an Azure Synapse Analytics data warehouse while migrating from an existing on-premises MPP (Massive Parallel Processing) data warehouse solution like Teradata and Netezza. The approach and methodologies discussed in this article are purely based on the knowledge and insight I have gained while migrating these data warehouses to Azure Synapse dedicated SQL pool. 

Dedicated SQL pools are close enough to regular SQL Server that we make a lot of assumptions about it, some of which may be wrong.

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Working with Postgres Extensions in Azure Cosmos DB

Published 2023-02-17 by Kevin Feasel

Sarah Dutkiewicz runs into an issue:

Problem: I installed PostGIS on my single-node cluster without issues. However, I scaled my cluster to 2 nodes afterwards. When I ran the query that uses ST_X and ST_Y from PostGIS, I got the following error:

ERROR: type "public.geometry" does not exist
CONTEXT: while executing command on private-w0.azure-cosmos-db-global-ug-demo.postgres.database.azure.com:5432

When I read the CONTEXT message, I realized by the w# reference that the worker nodes didn’t have PostGIS installed. When you scale the nodes – at least in this case, it doesn’t enable the extensions over there.

Read on to see how Sarah was able to resolve this issue.

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SQL Server 2022 CU1 and SQL Server 2019 CU19 Released

Published 2023-02-17 by Kevin Feasel

Srinivas Kandibanda and Harvey Mora have announcements:

The 1st cumulative update release for SQL Server 2022 RTM is now available for download at the Microsoft Downloads site. Please note that registration is no longer required to download Cumulative updates.

Both of these came out several months later than expected, though with the big GDR that dropped yesterday, it seems like that cleared up the logjam.

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