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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AmritaAWSEXPERT
published a day ago0 votes15 views
Learn how to baseline your Amazon Redshift clusters before configuring Query Monitoring Rules (QMR). This article provides 4 SQL queries to measure duration, queue pressure, scan volume, and heavy-que...
Hi,
We have noted that Amazon will end support for the Redshift ODBC 1.x driver on September 30, 2026:
https://docs.aws.amazon.com/redshift/latest/mgmt/behavior-changes.html
Currently, we are runnin...
Redshift currently does not support the named windows SQL syntax, where it's possible to define a common window definition for multiple windowing functions like so:
```sql
SELECT
sum(amount) OVE...
Jeongho KimSUPPORT ENGINEER
published 24 days ago0 votes63 views
After setting up a zero-ETL integration between DynamoDB and Amazon Redshift, some tables sync successfully while others repeatedly fall into a "Failed" state. This article explains how to systematica...
Bharanidharan SEXPERT
published 24 days ago0 votes89 views
When you resize an Amazon Redshift cluster (changing the node type or number of nodes), you can validate the performance impact by capturing key metrics before and after the operation. This article pr...
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 2 months ago0 votes81 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 2 months ago0 votes135 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 2 months ago0 votes55 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 2 months ago0 votes58 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...