Skip to content

#346 Disable AQE in broadcast notebook #347

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
jathavaan merged 1 commit into from
May 24, 2026
Merged

#346 Disable AQE in broadcast notebook #347

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
9 changes: 9 additions & 0 deletions src/presentation/databricks/national_scale_spatial_join_broadcast.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,10 @@
# `broadcast()` so Sedona picks `BroadcastIndexJoin` instead of the default
# `SortMergeJoin` Spark would pick for ST_Intersects.
#
# AQE (Adaptive Query Execution) is disabled before the timed section to
# prevent it from rewriting Sedona's BroadcastIndexJoin plan back into
# Spark's native BroadcastNestedLoopJoin (a brute-force cross product).
#
# Notes:
# - stage_durations_ms is capped at the first 100 stages (dbutils.notebook.exit
# has a payload cap around 1 MB); a warning is logged if truncation happens.
Expand Down Expand Up @@ -139,6 +143,9 @@

# COMMAND ----------

_original_aqe = spark.conf.get("spark.sql.adaptive.enabled")
spark.conf.set("spark.sql.adaptive.enabled", "false")

start_time = time.perf_counter()

result = (
Expand All @@ -155,6 +162,8 @@
cardinality = result.count()
elapsed_seconds = time.perf_counter() - start_time

spark.conf.set("spark.sql.adaptive.enabled", _original_aqe)

print(f"Spatial join complete. Regions with matched buildings: {cardinality}")
print(f"Elapsed seconds: {elapsed_seconds:.3f}")

Expand Down
Loading