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Add READ UNCOMMITTED to schema queries #164

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Merged
erikdarlingdata merged 1 commit into from
Apr 6, 2026
Merged

Add READ UNCOMMITTED to schema queries #164

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3 changes: 3 additions & 0 deletions src/PlanViewer.Core/Services/SchemaQueryService.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -50,6 +50,7 @@ public sealed class ColumnInfo
public static class SchemaQueryService
{
private const string IndexQuery = @"
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
SELECT
i.name AS index_name,
i.type_desc AS index_type,
Expand Down Expand Up @@ -108,6 +109,7 @@ AND i.type > 0
ORDER BY i.index_id;";

private const string ColumnQuery = @"
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
SELECT
c.column_id AS ordinal_position,
c.name AS column_name,
Expand Down Expand Up @@ -139,6 +141,7 @@ FROM sys.columns AS c
ORDER BY c.column_id;";

private const string ObjectDefinitionQuery = @"
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
SELECT OBJECT_DEFINITION(OBJECT_ID(@objectName));";

public static async Task<IReadOnlyList<IndexInfo>> FetchIndexesAsync(
Expand Down
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