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Collector takes the 50 heaviest statements (CPU, last 24 h), fetches statement plans as text (dm_exec_query_plan returns NULL for deeply nested plans) and analyzes them in C#. Rules: - SQLI-PLAN-001 implicit conversion preventing an index seek - SQLI-PLAN-002 join without predicate (deliberate CROSS JOIN excluded) - SQLI-PLAN-003 non-inlined scalar UDF in a heavy statement - SQLI-PLAN-004 spills to tempdb, SQLI-PLAN-005 oversized memory grants (2016 SP2+ / 2017 CU3+ columns, new capability) Verified against real plans in SQL Server. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01E3EExwndy8Z22EK2Qpt6BK
101 lines
3.6 KiB
C#
101 lines
3.6 KiB
C#
using SQLInsight.Core.Instances;
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namespace SQLInsight.Core.Tests;
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public class InstanceCapabilitiesTests
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{
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private static InstanceInfo Instance(string version, bool? hadr = null) => new()
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{
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ServerName = "test",
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Version = SqlServerVersion.Parse(version),
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Edition = "Enterprise Edition",
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EngineEdition = EngineEdition.Enterprise,
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IsHadrEnabled = hadr,
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};
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[Fact]
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public void Sql2000_has_no_version_gated_capabilities()
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{
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var capabilities = InstanceCapabilities.From(Instance("8.00.2039"));
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Assert.Empty(capabilities.All);
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}
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[Fact]
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public void Sql2005_has_dmvs_but_no_extended_events()
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{
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var capabilities = InstanceCapabilities.From(Instance("9.00.5000.00"));
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Assert.True(capabilities.Has(Capability.DynamicManagementViews));
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Assert.True(capabilities.Has(Capability.ViewServerStatePermission));
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Assert.False(capabilities.Has(Capability.ExtendedEvents));
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}
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[Fact]
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public void Sql2008_has_system_health_without_file_target()
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{
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var capabilities = InstanceCapabilities.From(Instance("10.0.6000.29"));
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Assert.True(capabilities.Has(Capability.SystemHealthSession));
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Assert.False(capabilities.Has(Capability.SystemHealthFileTarget));
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}
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[Theory]
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[InlineData("13.0.4001.0", false)] // 2016 SP1
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[InlineData("13.0.5026.0", true)] // 2016 SP2
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[InlineData("14.0.1000.169", true)]
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public void LastGoodCheckDbTime_requires_2016_sp2(string version, bool expected)
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{
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Assert.Equal(expected, InstanceCapabilities.From(Instance(version)).Has(Capability.LastGoodCheckDbTime));
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}
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[Fact]
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public void Query_store_starts_with_2016()
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{
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Assert.False(InstanceCapabilities.From(Instance("12.0.6024.0")).Has(Capability.QueryStore));
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Assert.True(InstanceCapabilities.From(Instance("13.0.6300.2")).Has(Capability.QueryStore));
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}
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[Fact]
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public void Granular_permissions_start_with_2022()
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{
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Assert.False(InstanceCapabilities.From(Instance("15.0.4355.3")).Has(Capability.GranularServerPermissions));
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Assert.True(InstanceCapabilities.From(Instance("16.0.4135.4")).Has(Capability.GranularServerPermissions));
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}
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[Theory]
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[InlineData("15.0.4355.3", true, true)]
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[InlineData("15.0.4355.3", false, false)]
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[InlineData("15.0.4355.3", null, false)]
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[InlineData("10.50.6000.34", true, false)] // property cannot be true before 2012; ignore bad data
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public void Hadr_requires_both_version_and_runtime_setting(string version, bool? hadr, bool expected)
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{
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Assert.Equal(expected, InstanceCapabilities.From(Instance(version, hadr)).Has(Capability.HadrEnabled));
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}
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[Fact]
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public void Missing_lists_only_absent_capabilities()
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{
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var capabilities = InstanceCapabilities.From(Instance("11.0.7001.0"));
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var missing = capabilities.Missing([Capability.ExtendedEvents, Capability.QueryStore, Capability.LastActualPlan]);
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Assert.Equal([Capability.QueryStore, Capability.LastActualPlan], missing);
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}
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}
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public class QueryStatsMemoryColumnsTests
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{
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[Theory]
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[InlineData("13.0.4001.0", false)]
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[InlineData("13.0.5026.0", true)]
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[InlineData("14.0.1000.169", false)]
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[InlineData("14.0.3015.40", true)]
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[InlineData("15.0.2000.5", true)]
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public void Available_from_2016_sp2_and_2017_cu3(string version, bool expected)
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{
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var info = new InstanceInfo { ServerName = "x", Version = SqlServerVersion.Parse(version), Edition = "e", EngineEdition = EngineEdition.Standard };
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Assert.Equal(expected, InstanceCapabilities.From(info).Has(Capability.QueryStatsMemoryColumns));
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}
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}
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