BigQuery Cost Controls Cheat Sheet

Partition filters and quotas

Last Updated: November 21, 2025

Focus Areas

Focus
Use partition/cluster filters
Enforce query quotas

Commands & Queries

SELECT * FROM dataset.table WHERE _PARTITIONTIME = DATE_SUB(CURRENT_DATE(), INTERVAL 1 DAY)
Filter partition
bq mk --reservation
Create reservation
bq update --set_use_legacy_sql=false
Ensure SQL standard

Summary

Partition-aware queries keep BigQuery costs under control.

💡 Pro Tip: Apply `_PARTITIONTIME` filters and avoid SELECT * scans.
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