[Solved] You wrote this dbt code:select {{ dbt_utils.unpivot( relation=ref('sales'), columns=['jan', 'feb', 'mar'], value_column='sales_amount', name_column='month' ) }} from salesBut it throws an error.... | dbt

dbt - Packages and Reusability

You wrote this dbt code:

select
  {{ dbt_utils.unpivot(
    relation=ref('sales'),
    columns=['jan', 'feb', 'mar'],
    value_column='sales_amount',
    name_column='month'
  ) }}
from sales

But it throws an error. What is the likely cause?

AUsing unpivot inside select without aliasing the output

BPassing columns as a list instead of a string

CUsing pivot macro instead of unpivot

DMissing aggregate function parameter

Step-by-Step Solution

Solution:

Step 1: Check unpivot usage context
The unpivot macro returns a table expression, so it cannot be used directly inside select without aliasing or wrapping.
Step 2: Identify error cause
Using unpivot inside select without proper FROM clause or alias causes syntax error.
Final Answer:
Using unpivot inside select without aliasing the output -> Option A
Quick Check:
unpivot returns table, must be in FROM clause [OK]

Quick Trick: Use unpivot in FROM clause, not directly in SELECT [OK]

Common Mistakes:

MISTAKES

Using unpivot as a scalar function
Passing columns incorrectly
Confusing pivot and unpivot usage

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You wrote this dbt code:

Step 1: Check unpivot usage context

Step 2: Identify error cause

Final Answer:

Quick Check:

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