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fix(articles): use date instead of a.date in BigQuery partition filter example #33

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robertodauria merged 1 commit into from
Aug 20, 2026
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fix(articles): use date instead of a.date in BigQuery partition filter example #33

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4 changes: 2 additions & 2 deletions src/content/articles/getting-started-bigquery.md
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Expand Up @@ -95,11 +95,11 @@ server.Site — M-Lab site ID (e.g., "lga01")

## Query Costs and Partition Pruning

The NDT7 table is large (more than 100GB/day of new data). **Always** filter by `a.date` to use BigQuery's partition pruning:
The NDT7 table is large (more than 100GB/day of new data). **Always** filter by `date` to use BigQuery's partition pruning:

```sql
-- Efficient: uses partition pruning
WHERE a.date = '2024-06-01'
WHERE date = '2024-06-01'

-- Inefficient: scans all partitions (very expensive)
WHERE a.TestTime > '2024-06-01'
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