Fix deadlock charts not populating data#80
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erikdarlingdata merged 1 commit intodevfrom Feb 16, 2026
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Four fixes for the deadlock chart pipeline: - Dashboard charts: plot raw per-interval columns instead of delta columns (blocking_event_count, deadlock_count, etc.) since delta framework incorrectly computed current-previous=0 for per-interval values - XAML: remove "(Delta)" from all four Locking > Trends chart titles - Analyzer: filter collect.deadlocks on collection_time instead of event_date so late-arriving XE deadlock events are not missed - Process XML: add +1 second buffer to @end_date so sp_BlitzLock's strict less-than filter works when processing a single deadlock event Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Summary
Changes
Dashboard (ServerTab.xaml.cs): Plot raw per-interval columns (
DeadlockCount,BlockingEventCount, etc.) instead of delta columns. The delta framework incorrectly computedcurrent - previous = 0for values that are already per-interval counts.Dashboard (ServerTab.xaml): Remove "(Delta)" from all four Locking > Trends chart titles.
Analyzer (26_blocking_deadlock_analyzer.sql): Filter
collect.deadlocksoncollection_timeinstead ofevent_date. Deadlock XE events have significant collection lag (e.g., 170+ minutes), so filtering onevent_datemissed late-arriving rows.Process XML (25_process_deadlock_xml.sql): Add +1 second buffer to
@end_datewhen derived from a single unprocessed row.sp_BlitzLockuses strict< @EndDate, so when@start_date = @end_date(single event), nothing matched.Test Plan
Closes #73
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