Power Query’s Objects connector expand columns functionality is inherently slow because it executes sequential API calls for each relationship expansion, then processes joins locally. This architecture cannot be meaningfully optimized because the performance bottleneck is fundamental to Power Query’s design.
Here’s how to eliminate expand columns operations entirely through native relationship handling.
Native relationship handling eliminates expand columns bottlenecks
Coefficient eliminates the need for expand columns operations entirely through native relationship handling. Instead of Power Query’s process of initial API calls, separate expansion calls, and local processing, Coefficient executes single optimized queries that retrieve primary and related object fields with server-side relationship processing.
How to make it work
Step 1. Connect Coefficient to Salesforce with optimized APIs.
Install Coefficient and authorize your Salesforce connection with automatic REST and Bulk API support. The integration handles relationship queries server-side, eliminating the multiple API call overhead that cripples Power Query performance.
Step 2. Use Objects & Fields for direct relationship access.
Select your primary object and add related fields directly (Account.Name, Contact.Email, Owner.Role) without expansion operations. This approach accesses related fields natively through Salesforce’s relationship structure.
Step 3. Configure parallel batch execution.
Set batch processing up to 10,000 records per batch with parallel execution enabled. This processes large datasets efficiently without the memory-intensive operations that characterize Power Query’s expand functionality.
Step 4. Use Custom SOQL for complex relationships.
Write custom SOQL queries for precise control over relationship queries, filtering, and field selection. This delivers only required data without the overhead of Power Query’s expand operations, handling complex scenarios server-side.
Skip expand columns entirely
Power Query’s expand columns limitations don’t have to slow down your relationship queries. Coefficient’s native relationship handling delivers joined datasets in 2-3 minutes versus Power Query’s 30+ minute processing time with automatic optimization. Experience the performance difference today.