All Content tagged with Amazon Redshift
Amazon Redshift uses SQL to analyze structured and semi-structured data across data warehouses, operational databases, and data lakes, using AWS-designed hardware and machine learning to deliver the best price performance at any scale.
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On the case, but not limited to this origin:
Origin: Aurora-postgres
Destination: Redshift
When a varchar/nvarchar length changes in the source table, it does not get applied to Redshift; it appears o...
Jeongho KimSUPPORT ENGINEER
published a month ago0 votes51 views
When modifying SORTKEY or DISTKEY in production Amazon Redshift environments, teams often face a critical decision: use ALTER TABLE or CREATE TABLE AS SELECT (CTAS). This article compares both approac...
AWS OFFICIALUpdated a month ago0 votes109 views
This article shows how organizations can use AWS Support to accelerate their compliance coverage against the Australian Cyber Security Centre (ACSC)’s Information Security Manual (ISM) framework. Note...
A table with approximately 1,000 rows and a primary key has been stuck in **ResyncInitiated** state for over 2 hours after triggering a refresh via `ALTER DATABASE INTEGRATION REFRESH TABLE`.
T...
AmritaAWSEXPERT
published a month ago0 votes37 views
Amazon Redshift's new reusable templates for COPY operations, launched in March 2026, address a critical challenge in modern data engineering: managing repetitive data ingestion while maintaining cons...
Jeongho KimSUPPORT ENGINEER
published a month ago0 votes42 views
When managing Amazon Redshift clusters, operations like disaster recovery, node type changes, or resizing are common. A key concern is whether these operations change the cluster endpoint, requiring c...
RiteshKSinhaEXPERT
published a month ago1 votes64 views
A self-service pattern for Amazon Redshift materialized view refresh using SECURITY DEFINER stored procedures — eliminating admin bottlenecks without compromising security.
Ricardo SerafimEXPERT
published a month ago0 votes76 views
Amazon Redshift defaults to UTC for all sessions. Common workarounds like SET timezone or CONVERT_TIMEZONE are session-scoped or query-scoped, making them easy to forget and leading to inconsistent re...
Nita_SEXPERT
published a month ago0 votes135 views
Apache Iceberg is an open-source table format designed to help manage and organize large-scale data stored in data lakes. it integrates seamlessly with Amazon Redshift. With this integration, Redshift...
As Python UDF support is getting deprecated in AWS redshift, I moved a simple python UDF function into a lambda function, and setup the lambda UDF as follows (on our serverless redshift cluster)
```
...
The [Unsupported PostgreSQL Functions](https://docs.aws.amazon.com/redshift/latest/dg/c_unsupported-postgresql-functions.html) page lists **IS DISTINCT FROM** as unsupported. However, it appears to wo...
We are running DMS replication from **Aurora PostgreSQL 15.x** to **Redshift Provisioned (RA3)** in `eu-central-1`. After the Redshift maintenance update to **v1.0.232773 (patch 199)** on March 8, 202...