Fix: Preserve BACKFILL run_type and triggering_user_name for repeated backfills#62142
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abhijeets25012-tech wants to merge 2 commits intoapache:mainfrom
Open
Fix: Preserve BACKFILL run_type and triggering_user_name for repeated backfills#62142abhijeets25012-tech wants to merge 2 commits intoapache:mainfrom
abhijeets25012-tech wants to merge 2 commits intoapache:mainfrom
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abhijeets25012-tech
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XD-DENG,
amoghrajesh,
ashb and
kaxil
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roykoand
reviewed
Feb 18, 2026
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What does this PR do?
Fixes an issue where repeated backfill runs for the same logical date
could result in incorrect DagRun metadata due to IntegrityError handling
that skipped updating existing DagRuns.
Root Cause
When a DagRun already existed for a logical_date, backfill logic skipped
creation without ensuring the run_type and triggering_user_name remained
consistent with BACKFILL semantics.
Fix
When IntegrityError occurs:
Additional Notes
No new dependencies are introduced. This ensures consistent metadata
for all backfill runs, first or subsequent.
Closes: #62126