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Article
· Jul 22 5m read
Vector Search Performance

Test Objectives

InterSystems has been testing Vector Search since it was announced as an “experimental feature” in IRIS 2024.1. The first test cycle was aimed at identifying algorithmic inefficiencies and performance constraints during the Development/QD cycle. The next test cycle used simple vector searches for single threaded performance analysis to model reliable, scalable and performant behaviour at production database scale in IRIS, and performed a series of comparative tests of key IRIS vector search features against PostgreSQL/pgvector. The current test cycle models the expected behaviour of real-world customer deployments using complex queries that span multiple indices (vector and non-vector) and run in up to 1000 concurrent threads. These tests will be run against IRIS, PostgreSQL/pgvector, and ElasticSearch

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Hello and welcome to the January 2025 Developer Community YouTube Recap.
InterSystems Global Summit
"Code to Care" videos
Open Source and Proprietary LLMs
By Don Woodlock, Head of Global Healthcare Solutions, InterSystems
AI model distillation
By Nicholai Mitchko, Manager of Solution Partner Sales Engineering, InterSystems
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Question
· Dec 4, 2024
Error importing XSD

I'm attempting to import all the FHIR XSD files provided by http://hl7.org/fhir but get the immediate and unhelpful error message:

I've tried different versions of EOLs to no avail. Any idea what this error could mean?

Here's the XSD I'm trying to import:

<?xml version="1.0" encoding="UTF-8"?>
<!--
Copyright (c) 2011+, HL7, Inc
All rights reserved.

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Article
· Aug 22 26m read
Building a robot with IRIS

In this case, a robot is nothing like Gort from the movie “The Day the Earth Stood Still” or any other humanoid robot from science fiction. Nor is this Robot the one-armed automated welder from a real-world automotive assembly line. This Robot is a program that controls another program. You might want this for automated testing or to capture application logic from an application for which you don’t have the source, and the application’s author lacked the kindness or foresight to provide an API for its capabilities.

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Hi Community,

We're super excited to share the first video in the "Rarified Air" series on our InterSystems Developers YouTube:

Securing the Digital Front Door

https://www.youtube.com/embed/wVm3qVpIl0w
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Hi Community,

Watch this video to learn about upcoming plans for HealthShare to incorporate change control capabilities for moving configuration changes across environments.

⏯ Change Control for HealthShare @ Global Summit 2024

https://www.youtube.com/embed/dyCvB8i3Ars
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Hello Team,

I got xDBC protocol is not compatible while executing python script. How to fix this error

C:\Users\ak\Desktop\lpyth\iris>C:/Users/ak/AppData/Local/Programs/Python/Python312/python.exe c:/Users/ak/Desktop/lpyth/iris/irisconn.py
An error occurred: connection failed: IRIS xDBC protocol is not compatible

py -m pip list
Package Version
------------------ ---------
intersystems-iris 3.9.2

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I'd like to ask you for recommendations on how to properly use repository dependencies when using VSCode and Client-side editing.
Suppose I have projects A, B and C, with A being independent, B depending on A, and C depending on A and B.
I am currently working with the main project C, and I want to be able to contribute to all the other projects in a single VSCode window (instead of opening three instances). How do you solve this problem? Git submodules? ZPM? Something else?

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Hi Community,

Enjoy the new video on InterSystems Developers YouTube:

FHIR Lessons Learned From the Field @ Global Summit 2024

https://www.youtube.com/embed/ojNDhiWdfeI
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Ho Ho Ho, Community!
The integration between Global Masters, the Developer Community, Open Exchange, and the Ideas Portal has now been restored!

The points should now be updated for all contributions made during the downtime of Global Masters.
Please note that we’ve made several adjustments to the awarding system, we will announce the changes soon.
A bug affecting badges for the number of views was detected, so we had to manually update the points for some of you.

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The ObjectScript language has incredible JSON support through classes like %DynamicObject and %JSON.Adaptor. This support is due to the JSON format's immense popularity over the previous dominance of XML. JSON brought less verbosity to data representation and increased readability for humans who needed to interpret JSON content. To further reduce verbosity and increase readability, the YAML format was created. The very easy-to-read YAML format quickly became the most popular format for representing configurations and parameterizations, due to its readability and minimal verbosity.

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Visual Studio Code releases new updates every month with new features and bug fixes, and the July 2025 release is now available.

Enhancements include revamped tool picker and expanded tool limits for MCPs, Chat GPT-5 integration and chat checkpoints, and multi-branch Git worktrees plus coding agent session management to improve productivity.

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I like Application Error Log a lot, both for its full stack and a big list of variables. I'd like to "hack" this functionality and record the same in this log when a certain variable has a certain value. This quasi error should not be visible to the user, and it should not interrupt the application flow. Is that possible?

Throwing an error in a try-catch block does not record the error, tested. I am considering recording variables and the stack differently, I know how to do both, but that would miss the nice Application Error Log functionality.

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Hi, Community!

How do you choose names for your interface components? Why is naming important? Learn from our experts:

Best Practices for Interface Naming Conventions

https://www.youtube.com/embed/RFaze3LYu-w?utm_source=youtube&utm_medium=social&utm_campaign=RFaze3LYu-w
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🚨 Planned Maintenance Notice 🚨

The InterSystems Developer Community will undergo scheduled maintenance tomorrow (March 22, 2025) from 10:30 AM to 12:30 PM EST (16:30 to 18:30 CET).

During this time, the platform may experience intermittent downtime. We apologize for any inconvenience and appreciate your patience as we work to improve our services.

Thank you for your understanding!

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Hello,

i am building a new container with Docker-Compose with a --volume ./:/irisdev/app:rw to mount a host volume (UBUNTU).

If i try to create some data in /irisdev/app i have no write permission

If i open a bash host session i see all mounted files of my ./ directory. But with ls -l only UID 100 has write permission. The UID for "iris owner" is 52773.

Is there a way to set the UID and Group to "iris owner" ?

regards Matthias

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I have a repeatable field within HL7 that I want to create a List from. Do I have to initialize the List by using $LB, or can I just use $LI to keep adding on to the end of the list as it is looping through the field?

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While working with GET request I encountered this situation where FHIR Server return a responseStatusHTTP "HTTP/1.1 200 200" instead of "HTTP/1.1 200 OK" (as highlighted in the attached screenshot).

Although the response code seems valid, these bundles have a total value of 0.

Could anyone clarify what "200 200" signifies in this context? Is there an issue with my setup, or does this indicate a specific condition related to the empty bundle search?

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