From 1d66495efd04687cafbebb6a312b46a3bb2136aa Mon Sep 17 00:00:00 2001
From: Erik Darling <2136037+erikdarlingdata@users.noreply.github.com>
Date: Wed, 25 Feb 2026 14:22:16 -0500
Subject: [PATCH] Issue #281 Gap 3: Surface min/max extremes in both apps, fix
 Query Store gaps, improve collector health logic
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Query Stats: Add min/max physical reads, rows, grant KB, spills to Lite grids.
Add min/max physical reads to Dashboard query stats main grid.
Procedure Stats: Add min/max logical reads, physical reads, logical writes, spills to Lite grid.
Query Store: Wire 3 broken XAML bindings (ForceFailureCount, LastForceFailureReasonDesc, PlanForcingType),
add 6 hidden columns (CLR time, num physical IO reads, log bytes), add min memory/tempdb MB display.
Collector Health: Add consecutive failure detection to report.collection_health view —
5+ recent errors = FAILING, 3+ = WARNING, regardless of 7-day percentage.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 .../Controls/QueryPerformanceContent.xaml     | 88 +++++++++++++++++++
 Dashboard/Models/QueryStatsItem.cs            |  2 +
 Dashboard/Models/QueryStoreItem.cs            | 19 ++++
 .../DatabaseService.QueryPerformance.cs       | 58 ++++++++----
 Lite/Controls/ServerTab.xaml                  | 48 ++++++++++
 Lite/Services/LocalDataService.QueryStats.cs  | 64 ++++++++++++--
 install/47_create_reporting_views.sql         | 48 +++++++++-
 7 files changed, 300 insertions(+), 27 deletions(-)

diff --git a/Dashboard/Controls/QueryPerformanceContent.xaml b/Dashboard/Controls/QueryPerformanceContent.xaml
index f478a328..b7c71c9d 100644
--- a/Dashboard/Controls/QueryPerformanceContent.xaml
+++ b/Dashboard/Controls/QueryPerformanceContent.xaml
@@ -727,6 +727,22 @@
                             </StackPanel>
                         </DataGridTextColumn.Header>
                     </DataGridTextColumn>
+                    <DataGridTextColumn Binding="{Binding MinPhysicalReads, StringFormat='{}{0:N0}'}" ElementStyle="{StaticResource NumericCell}" Width="110">
+                        <DataGridTextColumn.Header>
+                            <StackPanel Orientation="Horizontal">
+                                <Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MinPhysicalReads" Click="QueryStatsFilter_Click" Margin="0,0,4,0"/>
+                                <TextBlock Text="Min Phys Reads" FontWeight="Bold" VerticalAlignment="Center"/>
+                            </StackPanel>
+                        </DataGridTextColumn.Header>
+                    </DataGridTextColumn>
+                    <DataGridTextColumn Binding="{Binding MaxPhysicalReads, StringFormat='{}{0:N0}'}" ElementStyle="{StaticResource NumericCell}" Width="110">
+                        <DataGridTextColumn.Header>
+                            <StackPanel Orientation="Horizontal">
+                                <Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MaxPhysicalReads" Click="QueryStatsFilter_Click" Margin="0,0,4,0"/>
+                                <TextBlock Text="Max Phys Reads" FontWeight="Bold" VerticalAlignment="Center"/>
+                            </StackPanel>
+                        </DataGridTextColumn.Header>
+                    </DataGridTextColumn>
                     <DataGridTextColumn Binding="{Binding TotalLogicalWrites, StringFormat='{}{0:N0}'}" ElementStyle="{StaticResource NumericCell}" Width="100">
                         <DataGridTextColumn.Header>
                             <StackPanel Orientation="Horizontal">
@@ -1348,6 +1364,14 @@
                             </StackPanel>
                         </DataGridTextColumn.Header>
                     </DataGridTextColumn>
+                    <DataGridTextColumn Binding="{Binding MinMemoryMb, StringFormat='{}{0:N2}'}" ElementStyle="{StaticResource NumericCell}" Width="100">
+                        <DataGridTextColumn.Header>
+                            <StackPanel Orientation="Horizontal">
+                                <Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MinMemoryMb" Click="QueryStoreFilter_Click" Margin="0,0,4,0"/>
+                                <TextBlock Text="Min Mem (MB)" FontWeight="Bold" VerticalAlignment="Center"/>
+                            </StackPanel>
+                        </DataGridTextColumn.Header>
+                    </DataGridTextColumn>
                     <DataGridTextColumn Binding="{Binding MaxMemoryMb, StringFormat='{}{0:N2}'}" ElementStyle="{StaticResource NumericCell}" Width="100">
                         <DataGridTextColumn.Header>
                             <StackPanel Orientation="Horizontal">
@@ -1364,6 +1388,14 @@
                             </StackPanel>
                         </DataGridTextColumn.Header>
                     </DataGridTextColumn>
+                    <DataGridTextColumn Binding="{Binding MinTempdbMb, StringFormat='{}{0:N2}'}" ElementStyle="{StaticResource NumericCell}" Width="100">
+                        <DataGridTextColumn.Header>
+                            <StackPanel Orientation="Horizontal">
+                                <Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MinTempdbMb" Click="QueryStoreFilter_Click" Margin="0,0,4,0"/>
+                                <TextBlock Text="Min TempDB (MB)" FontWeight="Bold" VerticalAlignment="Center"/>
+                            </StackPanel>
+                        </DataGridTextColumn.Header>
+                    </DataGridTextColumn>
                     <DataGridTextColumn Binding="{Binding MaxTempdbMb, StringFormat='{}{0:N2}'}" ElementStyle="{StaticResource NumericCell}" Width="100">
                         <DataGridTextColumn.Header>
                             <StackPanel Orientation="Horizontal">
@@ -1404,6 +1436,62 @@
                             </StackPanel>
                         </DataGridTextColumn.Header>
                     </DataGridTextColumn>
+                    <DataGridTextColumn Binding="{Binding PlanForcingType}" Width="100">
+                        <DataGridTextColumn.Header>
+                            <StackPanel Orientation="Horizontal">
+                                <Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="PlanForcingType" Click="QueryStoreFilter_Click" Margin="0,0,4,0"/>
+                                <TextBlock Text="Forcing Type" FontWeight="Bold" VerticalAlignment="Center"/>
+                            </StackPanel>
+                        </DataGridTextColumn.Header>
+                    </DataGridTextColumn>
+                    <DataGridTextColumn Binding="{Binding MinClrTimeMs, StringFormat='{}{0:N2}'}" ElementStyle="{StaticResource NumericCell}" Width="100">
+                        <DataGridTextColumn.Header>
+                            <StackPanel Orientation="Horizontal">
+                                <Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MinClrTimeMs" Click="QueryStoreFilter_Click" Margin="0,0,4,0"/>
+                                <TextBlock Text="Min CLR (ms)" FontWeight="Bold" VerticalAlignment="Center"/>
+                            </StackPanel>
+                        </DataGridTextColumn.Header>
+                    </DataGridTextColumn>
+                    <DataGridTextColumn Binding="{Binding MaxClrTimeMs, StringFormat='{}{0:N2}'}" ElementStyle="{StaticResource NumericCell}" Width="100">
+                        <DataGridTextColumn.Header>
+                            <StackPanel Orientation="Horizontal">
+                                <Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MaxClrTimeMs" Click="QueryStoreFilter_Click" Margin="0,0,4,0"/>
+                                <TextBlock Text="Max CLR (ms)" FontWeight="Bold" VerticalAlignment="Center"/>
+                            </StackPanel>
+                        </DataGridTextColumn.Header>
+                    </DataGridTextColumn>
+                    <DataGridTextColumn Binding="{Binding MinNumPhysicalIoReads, StringFormat='{}{0:N0}'}" ElementStyle="{StaticResource NumericCell}" Width="110">
+                        <DataGridTextColumn.Header>
+                            <StackPanel Orientation="Horizontal">
+                                <Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MinNumPhysicalIoReads" Click="QueryStoreFilter_Click" Margin="0,0,4,0"/>
+                                <TextBlock Text="Min Phys IO Reads" FontWeight="Bold" VerticalAlignment="Center"/>
+                            </StackPanel>
+                        </DataGridTextColumn.Header>
+                    </DataGridTextColumn>
+                    <DataGridTextColumn Binding="{Binding MaxNumPhysicalIoReads, StringFormat='{}{0:N0}'}" ElementStyle="{StaticResource NumericCell}" Width="110">
+                        <DataGridTextColumn.Header>
+                            <StackPanel Orientation="Horizontal">
+                                <Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MaxNumPhysicalIoReads" Click="QueryStoreFilter_Click" Margin="0,0,4,0"/>
+                                <TextBlock Text="Max Phys IO Reads" FontWeight="Bold" VerticalAlignment="Center"/>
+                            </StackPanel>
+                        </DataGridTextColumn.Header>
+                    </DataGridTextColumn>
+                    <DataGridTextColumn Binding="{Binding MinLogBytesUsed, StringFormat='{}{0:N0}'}" ElementStyle="{StaticResource NumericCell}" Width="100">
+                        <DataGridTextColumn.Header>
+                            <StackPanel Orientation="Horizontal">
+                                <Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MinLogBytesUsed" Click="QueryStoreFilter_Click" Margin="0,0,4,0"/>
+                                <TextBlock Text="Min Log Bytes" FontWeight="Bold" VerticalAlignment="Center"/>
+                            </StackPanel>
+                        </DataGridTextColumn.Header>
+                    </DataGridTextColumn>
+                    <DataGridTextColumn Binding="{Binding MaxLogBytesUsed, StringFormat='{}{0:N0}'}" ElementStyle="{StaticResource NumericCell}" Width="100">
+                        <DataGridTextColumn.Header>
+                            <StackPanel Orientation="Horizontal">
+                                <Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MaxLogBytesUsed" Click="QueryStoreFilter_Click" Margin="0,0,4,0"/>
+                                <TextBlock Text="Max Log Bytes" FontWeight="Bold" VerticalAlignment="Center"/>
+                            </StackPanel>
+                        </DataGridTextColumn.Header>
+                    </DataGridTextColumn>
                     <DataGridTextColumn Binding="{Binding CompatibilityLevel}" ElementStyle="{StaticResource NumericCell}" Width="80">
                         <DataGridTextColumn.Header>
                             <StackPanel Orientation="Horizontal">
diff --git a/Dashboard/Models/QueryStatsItem.cs b/Dashboard/Models/QueryStatsItem.cs
index 3f9c77cd..9ab5de1c 100644
--- a/Dashboard/Models/QueryStatsItem.cs
+++ b/Dashboard/Models/QueryStatsItem.cs
@@ -34,6 +34,8 @@ public class QueryStatsItem
         public long? AvgLogicalReads { get; set; }
         public long? AvgLogicalWrites { get; set; }
         public long? AvgPhysicalReads { get; set; }
+        public long? MinPhysicalReads { get; set; }
+        public long? MaxPhysicalReads { get; set; }
         public long? AvgRows { get; set; }
         public long? MinRows { get; set; }
         public long? MaxRows { get; set; }
diff --git a/Dashboard/Models/QueryStoreItem.cs b/Dashboard/Models/QueryStoreItem.cs
index ad6a1ce1..4f12ab66 100644
--- a/Dashboard/Models/QueryStoreItem.cs
+++ b/Dashboard/Models/QueryStoreItem.cs
@@ -64,6 +64,23 @@ public class QueryStoreItem
         public bool IsForcedPlan { get; set; }
         public short? CompatibilityLevel { get; set; }
 
+        // Plan forcing details
+        public long? ForceFailureCount { get; set; }
+        public string? LastForceFailureReasonDesc { get; set; }
+        public string? PlanForcingType { get; set; }
+
+        // CLR time (pre-calculated in ms)
+        public double? MinClrTimeMs { get; set; }
+        public double? MaxClrTimeMs { get; set; }
+
+        // Physical IO reads (memory-optimized tables, SQL 2017+)
+        public long? MinNumPhysicalIoReads { get; set; }
+        public long? MaxNumPhysicalIoReads { get; set; }
+
+        // Log bytes used (SQL 2017+)
+        public long? MinLogBytesUsed { get; set; }
+        public long? MaxLogBytesUsed { get; set; }
+
         // Handle
         public string? QueryPlanHash { get; set; }
 
@@ -73,10 +90,12 @@ public class QueryStoreItem
 
         // Display helpers - memory in MB (8KB pages * 8 / 1024)
         public double? AvgMemoryMb => AvgMemoryPages.HasValue ? AvgMemoryPages.Value * 8.0 / 1024.0 : null;
+        public double? MinMemoryMb => MinMemoryPages.HasValue ? MinMemoryPages.Value * 8.0 / 1024.0 : null;
         public double? MaxMemoryMb => MaxMemoryPages.HasValue ? MaxMemoryPages.Value * 8.0 / 1024.0 : null;
 
         // Tempdb in MB
         public double? AvgTempdbMb => AvgTempdbPages.HasValue ? AvgTempdbPages.Value * 8.0 / 1024.0 : null;
+        public double? MinTempdbMb => MinTempdbPages.HasValue ? MinTempdbPages.Value * 8.0 / 1024.0 : null;
         public double? MaxTempdbMb => MaxTempdbPages.HasValue ? MaxTempdbPages.Value * 8.0 / 1024.0 : null;
 
         // Property aliases for XAML binding compatibility
diff --git a/Dashboard/Services/DatabaseService.QueryPerformance.cs b/Dashboard/Services/DatabaseService.QueryPerformance.cs
index fd80e20e..4cb0442c 100644
--- a/Dashboard/Services/DatabaseService.QueryPerformance.cs
+++ b/Dashboard/Services/DatabaseService.QueryPerformance.cs
@@ -786,6 +786,8 @@ ELSE QUOTENAME(MAX(pl.schema_name)) + N'.' + QUOTENAME(MAX(pl.object_name))
             avg_logical_writes = SUM(pl.total_logical_writes) / NULLIF(SUM(pl.execution_count), 0),
             total_physical_reads = SUM(pl.total_physical_reads),
             avg_physical_reads = SUM(pl.total_physical_reads) / NULLIF(SUM(pl.execution_count), 0),
+            min_physical_reads = MIN(pl.min_physical_reads),
+            max_physical_reads = MAX(pl.max_physical_reads),
             total_rows = SUM(pl.total_rows),
             avg_rows = SUM(pl.total_rows) / NULLIF(SUM(pl.execution_count), 0),
             min_rows = MIN(pl.min_rows),
@@ -849,22 +851,24 @@ USE HINT('ENABLE_PARALLEL_PLAN_PREFERENCE')
                             AvgLogicalWrites = reader.IsDBNull(18) ? null : reader.GetInt64(18),
                             TotalPhysicalReads = reader.IsDBNull(19) ? 0 : reader.GetInt64(19),
                             AvgPhysicalReads = reader.IsDBNull(20) ? null : reader.GetInt64(20),
-                            TotalRows = reader.IsDBNull(21) ? 0 : reader.GetInt64(21),
-                            AvgRows = reader.IsDBNull(22) ? null : reader.GetInt64(22),
-                            MinRows = reader.IsDBNull(23) ? null : reader.GetInt64(23),
-                            MaxRows = reader.IsDBNull(24) ? null : reader.GetInt64(24),
-                            MinDop = reader.IsDBNull(25) ? null : reader.GetInt16(25),
-                            MaxDop = reader.IsDBNull(26) ? null : reader.GetInt16(26),
-                            MinGrantKb = reader.IsDBNull(27) ? null : reader.GetInt64(27),
-                            MaxGrantKb = reader.IsDBNull(28) ? null : reader.GetInt64(28),
-                            TotalSpills = reader.IsDBNull(29) ? 0 : reader.GetInt64(29),
-                            MinSpills = reader.IsDBNull(30) ? null : reader.GetInt64(30),
-                            MaxSpills = reader.IsDBNull(31) ? null : reader.GetInt64(31),
-                            QueryText = reader.IsDBNull(32) ? null : reader.GetString(32),
-                            QueryPlanXml = reader.IsDBNull(33) ? null : reader.GetString(33),
-                            QueryPlanHash = reader.IsDBNull(34) ? null : reader.GetString(34),
-                            SqlHandle = reader.IsDBNull(35) ? null : reader.GetString(35),
-                            PlanHandle = reader.IsDBNull(36) ? null : reader.GetString(36)
+                            MinPhysicalReads = reader.IsDBNull(21) ? null : reader.GetInt64(21),
+                            MaxPhysicalReads = reader.IsDBNull(22) ? null : reader.GetInt64(22),
+                            TotalRows = reader.IsDBNull(23) ? 0 : reader.GetInt64(23),
+                            AvgRows = reader.IsDBNull(24) ? null : reader.GetInt64(24),
+                            MinRows = reader.IsDBNull(25) ? null : reader.GetInt64(25),
+                            MaxRows = reader.IsDBNull(26) ? null : reader.GetInt64(26),
+                            MinDop = reader.IsDBNull(27) ? null : reader.GetInt16(27),
+                            MaxDop = reader.IsDBNull(28) ? null : reader.GetInt16(28),
+                            MinGrantKb = reader.IsDBNull(29) ? null : reader.GetInt64(29),
+                            MaxGrantKb = reader.IsDBNull(30) ? null : reader.GetInt64(30),
+                            TotalSpills = reader.IsDBNull(31) ? 0 : reader.GetInt64(31),
+                            MinSpills = reader.IsDBNull(32) ? null : reader.GetInt64(32),
+                            MaxSpills = reader.IsDBNull(33) ? null : reader.GetInt64(33),
+                            QueryText = reader.IsDBNull(34) ? null : reader.GetString(34),
+                            QueryPlanXml = reader.IsDBNull(35) ? null : reader.GetString(35),
+                            QueryPlanHash = reader.IsDBNull(36) ? null : reader.GetString(36),
+                            SqlHandle = reader.IsDBNull(37) ? null : reader.GetString(37),
+                            PlanHandle = reader.IsDBNull(38) ? null : reader.GetString(38)
                         });
                     }
 
@@ -1098,7 +1102,16 @@ public async Task<List<QueryStoreItem>> GetQueryStoreDataAsync(int hoursBack = 2
             is_forced_plan = MAX(CONVERT(tinyint, qsd.is_forced_plan)),
             compatibility_level = MAX(qsd.compatibility_level),
             query_sql_text = CONVERT(nvarchar(max), MAX(qsd.query_sql_text)),
-            query_plan_hash = CONVERT(nvarchar(20), MAX(qsd.query_plan_hash), 1)
+            query_plan_hash = CONVERT(nvarchar(20), MAX(qsd.query_plan_hash), 1),
+            force_failure_count = SUM(qsd.force_failure_count),
+            last_force_failure_reason_desc = MAX(qsd.last_force_failure_reason_desc),
+            plan_forcing_type = MAX(qsd.plan_forcing_type),
+            min_clr_time_ms = MIN(qsd.min_clr_time) / 1000.0,
+            max_clr_time_ms = MAX(qsd.max_clr_time) / 1000.0,
+            min_num_physical_io_reads = MIN(qsd.min_num_physical_io_reads),
+            max_num_physical_io_reads = MAX(qsd.max_num_physical_io_reads),
+            min_log_bytes_used = MIN(qsd.min_log_bytes_used),
+            max_log_bytes_used = MAX(qsd.max_log_bytes_used)
         FROM collect.query_store_data AS qsd
         WHERE (
             (@useCustomDates = 0 AND qsd.server_last_execution_time >= DATEADD(HOUR, -@hoursBack, SYSDATETIME()))
@@ -1172,7 +1185,16 @@ USE HINT('ENABLE_PARALLEL_PLAN_PREFERENCE')
                             IsForcedPlan = !reader.IsDBNull(35) && reader.GetByte(35) == 1,
                             CompatibilityLevel = reader.IsDBNull(36) ? null : reader.GetInt16(36),
                             QuerySqlText = reader.IsDBNull(37) ? null : reader.GetString(37),
-                            QueryPlanHash = reader.IsDBNull(38) ? null : reader.GetString(38)
+                            QueryPlanHash = reader.IsDBNull(38) ? null : reader.GetString(38),
+                            ForceFailureCount = reader.IsDBNull(39) ? null : reader.GetInt64(39),
+                            LastForceFailureReasonDesc = reader.IsDBNull(40) ? null : reader.GetString(40),
+                            PlanForcingType = reader.IsDBNull(41) ? null : reader.GetString(41),
+                            MinClrTimeMs = reader.IsDBNull(42) ? null : Convert.ToDouble(reader.GetValue(42), CultureInfo.InvariantCulture),
+                            MaxClrTimeMs = reader.IsDBNull(43) ? null : Convert.ToDouble(reader.GetValue(43), CultureInfo.InvariantCulture),
+                            MinNumPhysicalIoReads = reader.IsDBNull(44) ? null : reader.GetInt64(44),
+                            MaxNumPhysicalIoReads = reader.IsDBNull(45) ? null : reader.GetInt64(45),
+                            MinLogBytesUsed = reader.IsDBNull(46) ? null : reader.GetInt64(46),
+                            MaxLogBytesUsed = reader.IsDBNull(47) ? null : reader.GetInt64(47)
                             // QueryPlanXml is fetched on-demand via GetQueryStorePlanXmlAsync
                         });
                     }
diff --git a/Lite/Controls/ServerTab.xaml b/Lite/Controls/ServerTab.xaml
index 3a70620a..9ea92736 100644
--- a/Lite/Controls/ServerTab.xaml
+++ b/Lite/Controls/ServerTab.xaml
@@ -365,6 +365,30 @@
                                     <DataGridTextColumn Binding="{Binding MaxElapsedMs, StringFormat=N2}" ElementStyle="{StaticResource NumericCell}" Width="120">
                                         <DataGridTextColumn.Header><StackPanel Orientation="Horizontal"><Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MaxElapsedMs" Click="FilterButton_Click" Margin="0,0,4,0"/><TextBlock Text="Max Duration (ms)" FontWeight="Bold" VerticalAlignment="Center"/></StackPanel></DataGridTextColumn.Header>
                                     </DataGridTextColumn>
+                                    <DataGridTextColumn Binding="{Binding MinPhysicalReads, StringFormat=N0}" ElementStyle="{StaticResource NumericCell}" Width="110">
+                                        <DataGridTextColumn.Header><StackPanel Orientation="Horizontal"><Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MinPhysicalReads" Click="FilterButton_Click" Margin="0,0,4,0"/><TextBlock Text="Min Phys Reads" FontWeight="Bold" VerticalAlignment="Center"/></StackPanel></DataGridTextColumn.Header>
+                                    </DataGridTextColumn>
+                                    <DataGridTextColumn Binding="{Binding MaxPhysicalReads, StringFormat=N0}" ElementStyle="{StaticResource NumericCell}" Width="110">
+                                        <DataGridTextColumn.Header><StackPanel Orientation="Horizontal"><Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MaxPhysicalReads" Click="FilterButton_Click" Margin="0,0,4,0"/><TextBlock Text="Max Phys Reads" FontWeight="Bold" VerticalAlignment="Center"/></StackPanel></DataGridTextColumn.Header>
+                                    </DataGridTextColumn>
+                                    <DataGridTextColumn Binding="{Binding MinRows, StringFormat=N0}" ElementStyle="{StaticResource NumericCell}" Width="80">
+                                        <DataGridTextColumn.Header><StackPanel Orientation="Horizontal"><Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MinRows" Click="FilterButton_Click" Margin="0,0,4,0"/><TextBlock Text="Min Rows" FontWeight="Bold" VerticalAlignment="Center"/></StackPanel></DataGridTextColumn.Header>
+                                    </DataGridTextColumn>
+                                    <DataGridTextColumn Binding="{Binding MaxRows, StringFormat=N0}" ElementStyle="{StaticResource NumericCell}" Width="80">
+                                        <DataGridTextColumn.Header><StackPanel Orientation="Horizontal"><Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MaxRows" Click="FilterButton_Click" Margin="0,0,4,0"/><TextBlock Text="Max Rows" FontWeight="Bold" VerticalAlignment="Center"/></StackPanel></DataGridTextColumn.Header>
+                                    </DataGridTextColumn>
+                                    <DataGridTextColumn Binding="{Binding MinGrantKb, StringFormat=N0}" ElementStyle="{StaticResource NumericCell}" Width="100">
+                                        <DataGridTextColumn.Header><StackPanel Orientation="Horizontal"><Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MinGrantKb" Click="FilterButton_Click" Margin="0,0,4,0"/><TextBlock Text="Min Grant KB" FontWeight="Bold" VerticalAlignment="Center"/></StackPanel></DataGridTextColumn.Header>
+                                    </DataGridTextColumn>
+                                    <DataGridTextColumn Binding="{Binding MaxGrantKb, StringFormat=N0}" ElementStyle="{StaticResource NumericCell}" Width="100">
+                                        <DataGridTextColumn.Header><StackPanel Orientation="Horizontal"><Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MaxGrantKb" Click="FilterButton_Click" Margin="0,0,4,0"/><TextBlock Text="Max Grant KB" FontWeight="Bold" VerticalAlignment="Center"/></StackPanel></DataGridTextColumn.Header>
+                                    </DataGridTextColumn>
+                                    <DataGridTextColumn Binding="{Binding MinSpills, StringFormat=N0}" ElementStyle="{StaticResource NumericCell}" Width="80">
+                                        <DataGridTextColumn.Header><StackPanel Orientation="Horizontal"><Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MinSpills" Click="FilterButton_Click" Margin="0,0,4,0"/><TextBlock Text="Min Spills" FontWeight="Bold" VerticalAlignment="Center"/></StackPanel></DataGridTextColumn.Header>
+                                    </DataGridTextColumn>
+                                    <DataGridTextColumn Binding="{Binding MaxSpills, StringFormat=N0}" ElementStyle="{StaticResource NumericCell}" Width="80">
+                                        <DataGridTextColumn.Header><StackPanel Orientation="Horizontal"><Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MaxSpills" Click="FilterButton_Click" Margin="0,0,4,0"/><TextBlock Text="Max Spills" FontWeight="Bold" VerticalAlignment="Center"/></StackPanel></DataGridTextColumn.Header>
+                                    </DataGridTextColumn>
                                     <DataGridTextColumn Binding="{Binding MinDop}" ElementStyle="{StaticResource NumericCell}" Width="70">
                                         <DataGridTextColumn.Header><StackPanel Orientation="Horizontal"><Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MinDop" Click="FilterButton_Click" Margin="0,0,4,0"/><TextBlock Text="Min DOP" FontWeight="Bold" VerticalAlignment="Center"/></StackPanel></DataGridTextColumn.Header>
                                     </DataGridTextColumn>
@@ -463,6 +487,30 @@
                                     <DataGridTextColumn Binding="{Binding MaxElapsedMs, StringFormat=N2}" ElementStyle="{StaticResource NumericCell}" Width="120">
                                         <DataGridTextColumn.Header><StackPanel Orientation="Horizontal"><Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MaxElapsedMs" Click="FilterButton_Click" Margin="0,0,4,0"/><TextBlock Text="Max Duration (ms)" FontWeight="Bold" VerticalAlignment="Center"/></StackPanel></DataGridTextColumn.Header>
                                     </DataGridTextColumn>
+                                    <DataGridTextColumn Binding="{Binding MinLogicalReads, StringFormat=N0}" ElementStyle="{StaticResource NumericCell}" Width="100">
+                                        <DataGridTextColumn.Header><StackPanel Orientation="Horizontal"><Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MinLogicalReads" Click="FilterButton_Click" Margin="0,0,4,0"/><TextBlock Text="Min Reads" FontWeight="Bold" VerticalAlignment="Center"/></StackPanel></DataGridTextColumn.Header>
+                                    </DataGridTextColumn>
+                                    <DataGridTextColumn Binding="{Binding MaxLogicalReads, StringFormat=N0}" ElementStyle="{StaticResource NumericCell}" Width="100">
+                                        <DataGridTextColumn.Header><StackPanel Orientation="Horizontal"><Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MaxLogicalReads" Click="FilterButton_Click" Margin="0,0,4,0"/><TextBlock Text="Max Reads" FontWeight="Bold" VerticalAlignment="Center"/></StackPanel></DataGridTextColumn.Header>
+                                    </DataGridTextColumn>
+                                    <DataGridTextColumn Binding="{Binding MinPhysicalReads, StringFormat=N0}" ElementStyle="{StaticResource NumericCell}" Width="110">
+                                        <DataGridTextColumn.Header><StackPanel Orientation="Horizontal"><Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MinPhysicalReads" Click="FilterButton_Click" Margin="0,0,4,0"/><TextBlock Text="Min Phys Reads" FontWeight="Bold" VerticalAlignment="Center"/></StackPanel></DataGridTextColumn.Header>
+                                    </DataGridTextColumn>
+                                    <DataGridTextColumn Binding="{Binding MaxPhysicalReads, StringFormat=N0}" ElementStyle="{StaticResource NumericCell}" Width="110">
+                                        <DataGridTextColumn.Header><StackPanel Orientation="Horizontal"><Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MaxPhysicalReads" Click="FilterButton_Click" Margin="0,0,4,0"/><TextBlock Text="Max Phys Reads" FontWeight="Bold" VerticalAlignment="Center"/></StackPanel></DataGridTextColumn.Header>
+                                    </DataGridTextColumn>
+                                    <DataGridTextColumn Binding="{Binding MinLogicalWrites, StringFormat=N0}" ElementStyle="{StaticResource NumericCell}" Width="100">
+                                        <DataGridTextColumn.Header><StackPanel Orientation="Horizontal"><Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MinLogicalWrites" Click="FilterButton_Click" Margin="0,0,4,0"/><TextBlock Text="Min Writes" FontWeight="Bold" VerticalAlignment="Center"/></StackPanel></DataGridTextColumn.Header>
+                                    </DataGridTextColumn>
+                                    <DataGridTextColumn Binding="{Binding MaxLogicalWrites, StringFormat=N0}" ElementStyle="{StaticResource NumericCell}" Width="100">
+                                        <DataGridTextColumn.Header><StackPanel Orientation="Horizontal"><Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MaxLogicalWrites" Click="FilterButton_Click" Margin="0,0,4,0"/><TextBlock Text="Max Writes" FontWeight="Bold" VerticalAlignment="Center"/></StackPanel></DataGridTextColumn.Header>
+                                    </DataGridTextColumn>
+                                    <DataGridTextColumn Binding="{Binding MinSpills, StringFormat=N0}" ElementStyle="{StaticResource NumericCell}" Width="80">
+                                        <DataGridTextColumn.Header><StackPanel Orientation="Horizontal"><Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MinSpills" Click="FilterButton_Click" Margin="0,0,4,0"/><TextBlock Text="Min Spills" FontWeight="Bold" VerticalAlignment="Center"/></StackPanel></DataGridTextColumn.Header>
+                                    </DataGridTextColumn>
+                                    <DataGridTextColumn Binding="{Binding MaxSpills, StringFormat=N0}" ElementStyle="{StaticResource NumericCell}" Width="80">
+                                        <DataGridTextColumn.Header><StackPanel Orientation="Horizontal"><Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="MaxSpills" Click="FilterButton_Click" Margin="0,0,4,0"/><TextBlock Text="Max Spills" FontWeight="Bold" VerticalAlignment="Center"/></StackPanel></DataGridTextColumn.Header>
+                                    </DataGridTextColumn>
                                     <DataGridTextColumn Binding="{Binding PlanHandle}" Width="140">
                                         <DataGridTextColumn.Header><StackPanel Orientation="Horizontal"><Button Style="{DynamicResource ColumnFilterButtonStyle}" Tag="PlanHandle" Click="FilterButton_Click" Margin="0,0,4,0"/><TextBlock Text="Plan Handle" FontWeight="Bold" VerticalAlignment="Center"/></StackPanel></DataGridTextColumn.Header>
                                     </DataGridTextColumn>
diff --git a/Lite/Services/LocalDataService.QueryStats.cs b/Lite/Services/LocalDataService.QueryStats.cs
index 4e7c9f44..c38aeaff 100644
--- a/Lite/Services/LocalDataService.QueryStats.cs
+++ b/Lite/Services/LocalDataService.QueryStats.cs
@@ -61,6 +61,14 @@ public async Task<List<QueryStatsRow>> GetTopQueriesByCpuAsync(int serverId, int
     MAX(max_worker_time) AS max_worker_time,
     MIN(min_elapsed_time) AS min_elapsed_time,
     MAX(max_elapsed_time) AS max_elapsed_time,
+    MIN(min_physical_reads) AS min_physical_reads,
+    MAX(max_physical_reads) AS max_physical_reads,
+    MIN(min_rows) AS min_rows,
+    MAX(max_rows) AS max_rows,
+    MIN(min_grant_kb) AS min_grant_kb,
+    MAX(max_grant_kb) AS max_grant_kb,
+    MIN(min_spills) AS min_spills,
+    MAX(max_spills) AS max_spills,
     MAX(query_plan_hash) AS query_plan_hash,
     MAX(sql_handle) AS sql_handle,
     MAX(plan_handle) AS plan_handle,
@@ -105,11 +113,19 @@ ORDER BY SUM(delta_elapsed_time) DESC
                 MaxCpuUs = reader.IsDBNull(13) ? 0 : reader.GetInt64(13),
                 MinElapsedUs = reader.IsDBNull(14) ? 0 : reader.GetInt64(14),
                 MaxElapsedUs = reader.IsDBNull(15) ? 0 : reader.GetInt64(15),
-                QueryPlanHash = reader.IsDBNull(16) ? "" : reader.GetString(16),
-                SqlHandle = reader.IsDBNull(17) ? "" : reader.GetString(17),
-                PlanHandle = reader.IsDBNull(18) ? "" : reader.GetString(18),
-                QueryText = reader.IsDBNull(19) ? "" : reader.GetString(19),
-                QueryPlan = reader.IsDBNull(20) ? null : reader.GetString(20)
+                MinPhysicalReads = reader.IsDBNull(16) ? 0 : reader.GetInt64(16),
+                MaxPhysicalReads = reader.IsDBNull(17) ? 0 : reader.GetInt64(17),
+                MinRows = reader.IsDBNull(18) ? 0 : reader.GetInt64(18),
+                MaxRows = reader.IsDBNull(19) ? 0 : reader.GetInt64(19),
+                MinGrantKb = reader.IsDBNull(20) ? 0 : reader.GetInt64(20),
+                MaxGrantKb = reader.IsDBNull(21) ? 0 : reader.GetInt64(21),
+                MinSpills = reader.IsDBNull(22) ? 0 : reader.GetInt64(22),
+                MaxSpills = reader.IsDBNull(23) ? 0 : reader.GetInt64(23),
+                QueryPlanHash = reader.IsDBNull(24) ? "" : reader.GetString(24),
+                SqlHandle = reader.IsDBNull(25) ? "" : reader.GetString(25),
+                PlanHandle = reader.IsDBNull(26) ? "" : reader.GetString(26),
+                QueryText = reader.IsDBNull(27) ? "" : reader.GetString(27),
+                QueryPlan = reader.IsDBNull(28) ? null : reader.GetString(28)
             });
         }
 
@@ -386,7 +402,15 @@ public async Task<List<ProcedureStatsRow>> GetTopProceduresByCpuAsync(int server
     MAX(max_worker_time) AS max_worker_time,
     MIN(min_elapsed_time) AS min_elapsed_time,
     MAX(max_elapsed_time) AS max_elapsed_time,
+    MIN(min_logical_reads) AS min_logical_reads,
+    MAX(max_logical_reads) AS max_logical_reads,
+    MIN(min_physical_reads) AS min_physical_reads,
+    MAX(max_physical_reads) AS max_physical_reads,
+    MIN(min_logical_writes) AS min_logical_writes,
+    MAX(max_logical_writes) AS max_logical_writes,
     SUM(total_spills) AS total_spills,
+    MIN(min_spills) AS min_spills,
+    MAX(max_spills) AS max_spills,
     MAX(sql_handle) AS sql_handle,
     MAX(plan_handle) AS plan_handle
 FROM v_procedure_stats
@@ -425,9 +449,17 @@ ORDER BY SUM(delta_elapsed_time) DESC
                 MaxWorkerTimeUs = reader.IsDBNull(11) ? 0 : reader.GetInt64(11),
                 MinElapsedTimeUs = reader.IsDBNull(12) ? 0 : reader.GetInt64(12),
                 MaxElapsedTimeUs = reader.IsDBNull(13) ? 0 : reader.GetInt64(13),
-                TotalSpills = reader.IsDBNull(14) ? 0 : reader.GetInt64(14),
-                SqlHandle = reader.IsDBNull(15) ? "" : reader.GetString(15),
-                PlanHandle = reader.IsDBNull(16) ? "" : reader.GetString(16)
+                MinLogicalReads = reader.IsDBNull(14) ? 0 : reader.GetInt64(14),
+                MaxLogicalReads = reader.IsDBNull(15) ? 0 : reader.GetInt64(15),
+                MinPhysicalReads = reader.IsDBNull(16) ? 0 : reader.GetInt64(16),
+                MaxPhysicalReads = reader.IsDBNull(17) ? 0 : reader.GetInt64(17),
+                MinLogicalWrites = reader.IsDBNull(18) ? 0 : reader.GetInt64(18),
+                MaxLogicalWrites = reader.IsDBNull(19) ? 0 : reader.GetInt64(19),
+                TotalSpills = reader.IsDBNull(20) ? 0 : reader.GetInt64(20),
+                MinSpills = reader.IsDBNull(21) ? 0 : reader.GetInt64(21),
+                MaxSpills = reader.IsDBNull(22) ? 0 : reader.GetInt64(22),
+                SqlHandle = reader.IsDBNull(23) ? "" : reader.GetString(23),
+                PlanHandle = reader.IsDBNull(24) ? "" : reader.GetString(24)
             });
         }
 
@@ -603,6 +635,14 @@ public class QueryStatsRow
     public long MaxCpuUs { get; set; }
     public long MinElapsedUs { get; set; }
     public long MaxElapsedUs { get; set; }
+    public long MinPhysicalReads { get; set; }
+    public long MaxPhysicalReads { get; set; }
+    public long MinRows { get; set; }
+    public long MaxRows { get; set; }
+    public long MinGrantKb { get; set; }
+    public long MaxGrantKb { get; set; }
+    public long MinSpills { get; set; }
+    public long MaxSpills { get; set; }
     public string QueryPlanHash { get; set; } = "";
     public string SqlHandle { get; set; } = "";
     public string PlanHandle { get; set; } = "";
@@ -636,7 +676,15 @@ public class ProcedureStatsRow
     public long MaxWorkerTimeUs { get; set; }
     public long MinElapsedTimeUs { get; set; }
     public long MaxElapsedTimeUs { get; set; }
+    public long MinLogicalReads { get; set; }
+    public long MaxLogicalReads { get; set; }
+    public long MinPhysicalReads { get; set; }
+    public long MaxPhysicalReads { get; set; }
+    public long MinLogicalWrites { get; set; }
+    public long MaxLogicalWrites { get; set; }
     public long TotalSpills { get; set; }
+    public long MinSpills { get; set; }
+    public long MaxSpills { get; set; }
     public string SqlHandle { get; set; } = "";
     public string PlanHandle { get; set; } = "";
     public string FullName => string.IsNullOrEmpty(SchemaName) ? ObjectName : $"{SchemaName}.{ObjectName}";
diff --git a/install/47_create_reporting_views.sql b/install/47_create_reporting_views.sql
index fc320108..93ae386f 100644
--- a/install/47_create_reporting_views.sql
+++ b/install/47_create_reporting_views.sql
@@ -86,6 +86,44 @@ WITH
     WHERE cl.collection_time >= DATEADD(DAY, -7, SYSDATETIME())
     GROUP BY
         cl.collector_name
+),
+    /*
+    Count consecutive recent failures per collector.
+    If the last 5+ runs are all errors, the collector is
+    actively broken regardless of 7-day failure percentage.
+    */
+    recent_failures AS
+(
+    SELECT
+        collector_name = r.collector_name,
+        consecutive_failures =
+            MIN
+            (
+                CASE
+                    WHEN r.collection_status <> N'ERROR'
+                    THEN r.rn
+                    ELSE NULL
+                END
+            )
+    FROM
+    (
+        SELECT
+            cl.collector_name,
+            cl.collection_status,
+            rn = ROW_NUMBER() OVER
+            (
+                PARTITION BY
+                    cl.collector_name
+                ORDER BY
+                    cl.collection_time DESC
+            )
+        FROM config.collection_log AS cl
+        WHERE cl.collection_status NOT IN (N'CONFIG_CHANGE', N'TABLE_MISSING', N'TABLE_CREATED', N'SKIPPED')
+        AND   cl.collection_time >= DATEADD(DAY, -7, SYSDATETIME())
+    ) AS r
+    WHERE r.rn <= 20
+    GROUP BY
+        r.collector_name
 )
 SELECT
     collector_name = cs.collector_name,
@@ -99,6 +137,12 @@ SELECT
             THEN N'NEVER_RUN'
             WHEN DATEDIFF(HOUR, cs.last_success_time, SYSDATETIME()) > 24
             THEN N'STALE'
+            WHEN rf.consecutive_failures IS NULL
+            THEN N'FAILING'
+            WHEN rf.consecutive_failures > 5
+            THEN N'FAILING'
+            WHEN rf.consecutive_failures > 3
+            THEN N'WARNING'
             WHEN cs.failed_runs * 100.0 / NULLIF(cs.total_runs, 0) > 50
             THEN N'FAILING'
             WHEN cs.failed_runs * 100.0 / NULLIF(cs.total_runs, 0) > 10
@@ -115,7 +159,9 @@ SELECT
     failed_runs_7d = cs.failed_runs,
     avg_duration_ms = CONVERT(integer, cs.avg_duration_ms),
     total_rows_collected_7d = cs.total_rows_collected
-FROM collector_stats AS cs;
+FROM collector_stats AS cs
+LEFT JOIN recent_failures AS rf
+    ON cs.collector_name = rf.collector_name;
 GO
 
 /*