# Search Criteria SQL Extraction Functions - Implementation Plan

> **For Claude:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development to implement this plan task-by-task.

**Goal:** Create SQL functions to extract SearchCriteria JSON values, eliminating C# TVP code.

**Architecture:** Inline TVFs for performance-critical extraction, validation stored procedure for strict error handling. C# query builder passes SearchId only.

**Tech Stack:** SQL Server 2022, OPENJSON, TRY_CONVERT, xUnit, Dapper

---

## Codex Review Findings (Applied)

**Critical fixes applied:**
1. **CROSS APPLY OPENJSON before WHERE** - Use CTE with pre-filtered search to prevent OPENJSON from running on invalid JSON
2. **Use OPENJSON...WITH for simple arrays** - Avoids double TRY_CONVERT, cleaner syntax

**Design decisions:**
1. **Script numbering** - Keep new scripts as 045-048, do NOT renumber existing 040-044 (avoids migration drift)
2. **Test isolation** - Use xUnit Collection attribute to disable parallel execution
3. **Date format** - Document that ISO 8601 format without timezone is expected (System.Text.Json default)

---

## Task 1: Create Scalar Extraction Functions

**Files:**
- Create: `src/JdeScoping.Database/Scripts/045_CreateScalarExtractionFunctions.sql`

**Step 1: Write the SQL script**

```sql
-- Migration: 045_CreateScalarExtractionFunctions
-- Scalar functions to extract simple values from Search.Criteria JSON

-- fn_GetSearchMinimumDt: Extract MinimumDt datetime
IF OBJECT_ID('dbo.fn_GetSearchMinimumDt', 'FN') IS NOT NULL
    DROP FUNCTION dbo.fn_GetSearchMinimumDt;
GO

CREATE FUNCTION dbo.fn_GetSearchMinimumDt(@SearchId INT)
RETURNS DATETIME2(7)
AS
BEGIN
    DECLARE @Result DATETIME2(7);

    SELECT @Result = TRY_CONVERT(DATETIME2(7), JSON_VALUE(s.Criteria, '$.MinimumDt'))
    FROM dbo.Search s
    WHERE s.ID = @SearchId
      AND s.Criteria IS NOT NULL
      AND ISJSON(s.Criteria) = 1;

    RETURN @Result;
END
GO

-- fn_GetSearchMaximumDt: Extract MaximumDt datetime
IF OBJECT_ID('dbo.fn_GetSearchMaximumDt', 'FN') IS NOT NULL
    DROP FUNCTION dbo.fn_GetSearchMaximumDt;
GO

CREATE FUNCTION dbo.fn_GetSearchMaximumDt(@SearchId INT)
RETURNS DATETIME2(7)
AS
BEGIN
    DECLARE @Result DATETIME2(7);

    SELECT @Result = TRY_CONVERT(DATETIME2(7), JSON_VALUE(s.Criteria, '$.MaximumDt'))
    FROM dbo.Search s
    WHERE s.ID = @SearchId
      AND s.Criteria IS NOT NULL
      AND ISJSON(s.Criteria) = 1;

    RETURN @Result;
END
GO

-- fn_GetSearchExtractMisData: Extract ExtractMisData boolean
IF OBJECT_ID('dbo.fn_GetSearchExtractMisData', 'FN') IS NOT NULL
    DROP FUNCTION dbo.fn_GetSearchExtractMisData;
GO

CREATE FUNCTION dbo.fn_GetSearchExtractMisData(@SearchId INT)
RETURNS BIT
AS
BEGIN
    DECLARE @Result BIT;

    SELECT @Result = TRY_CONVERT(BIT, JSON_VALUE(s.Criteria, '$.ExtractMisData'))
    FROM dbo.Search s
    WHERE s.ID = @SearchId
      AND s.Criteria IS NOT NULL
      AND ISJSON(s.Criteria) = 1;

    RETURN @Result;
END
GO
```

**Step 2: Verify script syntax**

Run: `sqlcmd -S localhost,1434 -U sa -P <password> -d JdeScoping -i src/JdeScoping.Database/Scripts/045_CreateScalarExtractionFunctions.sql`
Expected: Commands completed successfully

**Step 3: Commit**

```bash
git add src/JdeScoping.Database/Scripts/045_CreateScalarExtractionFunctions.sql
git commit -m "feat(db): add scalar extraction functions for SearchCriteria JSON"
```

---

## Task 2: Create Simple Table Extraction Functions

**Files:**
- Create: `src/JdeScoping.Database/Scripts/046_CreateSimpleTableFunctions.sql`

**Step 1: Write the SQL script**

Uses CTE pattern to pre-filter valid JSON before OPENJSON (prevents runtime errors on invalid JSON).
Uses OPENJSON...WITH for type conversion (single conversion, cleaner syntax).

```sql
-- Migration: 046_CreateSimpleTableFunctions
-- Inline TVFs to extract simple arrays from Search.Criteria JSON
-- Pattern: CTE pre-filters valid JSON, OPENJSON...WITH for type-safe extraction

-- fn_GetSearchWorkOrders: Extract WorkOrderNumbers array
IF OBJECT_ID('dbo.fn_GetSearchWorkOrders', 'IF') IS NOT NULL
    DROP FUNCTION dbo.fn_GetSearchWorkOrders;
GO

CREATE FUNCTION dbo.fn_GetSearchWorkOrders(@SearchId INT)
RETURNS TABLE
AS
RETURN
(
    WITH ValidSearch AS (
        SELECT Criteria
        FROM dbo.Search
        WHERE ID = @SearchId
          AND Criteria IS NOT NULL
          AND ISJSON(Criteria) = 1
    )
    SELECT j.WorkOrderNumber
    FROM ValidSearch s
    CROSS APPLY OPENJSON(s.Criteria, '$.WorkOrderNumbers')
        WITH (WorkOrderNumber BIGINT '$') j
    WHERE j.WorkOrderNumber IS NOT NULL
);
GO

-- fn_GetSearchItemNumbers: Extract ItemNumbers array
IF OBJECT_ID('dbo.fn_GetSearchItemNumbers', 'IF') IS NOT NULL
    DROP FUNCTION dbo.fn_GetSearchItemNumbers;
GO

CREATE FUNCTION dbo.fn_GetSearchItemNumbers(@SearchId INT)
RETURNS TABLE
AS
RETURN
(
    WITH ValidSearch AS (
        SELECT Criteria
        FROM dbo.Search
        WHERE ID = @SearchId
          AND Criteria IS NOT NULL
          AND ISJSON(Criteria) = 1
    )
    SELECT j.ItemNumber
    FROM ValidSearch s
    CROSS APPLY OPENJSON(s.Criteria, '$.ItemNumbers')
        WITH (ItemNumber VARCHAR(128) '$') j
    WHERE j.ItemNumber IS NOT NULL
);
GO

-- fn_GetSearchProfitCenters: Extract ProfitCenters array
IF OBJECT_ID('dbo.fn_GetSearchProfitCenters', 'IF') IS NOT NULL
    DROP FUNCTION dbo.fn_GetSearchProfitCenters;
GO

CREATE FUNCTION dbo.fn_GetSearchProfitCenters(@SearchId INT)
RETURNS TABLE
AS
RETURN
(
    WITH ValidSearch AS (
        SELECT Criteria
        FROM dbo.Search
        WHERE ID = @SearchId
          AND Criteria IS NOT NULL
          AND ISJSON(Criteria) = 1
    )
    SELECT j.Code
    FROM ValidSearch s
    CROSS APPLY OPENJSON(s.Criteria, '$.ProfitCenters')
        WITH (Code VARCHAR(12) '$') j
    WHERE j.Code IS NOT NULL
);
GO

-- fn_GetSearchWorkCenters: Extract WorkCenters array
IF OBJECT_ID('dbo.fn_GetSearchWorkCenters', 'IF') IS NOT NULL
    DROP FUNCTION dbo.fn_GetSearchWorkCenters;
GO

CREATE FUNCTION dbo.fn_GetSearchWorkCenters(@SearchId INT)
RETURNS TABLE
AS
RETURN
(
    WITH ValidSearch AS (
        SELECT Criteria
        FROM dbo.Search
        WHERE ID = @SearchId
          AND Criteria IS NOT NULL
          AND ISJSON(Criteria) = 1
    )
    SELECT j.Code
    FROM ValidSearch s
    CROSS APPLY OPENJSON(s.Criteria, '$.WorkCenters')
        WITH (Code VARCHAR(12) '$') j
    WHERE j.Code IS NOT NULL
);
GO

-- fn_GetSearchOperatorIDs: Extract OperatorIDs array
IF OBJECT_ID('dbo.fn_GetSearchOperatorIDs', 'IF') IS NOT NULL
    DROP FUNCTION dbo.fn_GetSearchOperatorIDs;
GO

CREATE FUNCTION dbo.fn_GetSearchOperatorIDs(@SearchId INT)
RETURNS TABLE
AS
RETURN
(
    WITH ValidSearch AS (
        SELECT Criteria
        FROM dbo.Search
        WHERE ID = @SearchId
          AND Criteria IS NOT NULL
          AND ISJSON(Criteria) = 1
    )
    SELECT j.OperatorID
    FROM ValidSearch s
    CROSS APPLY OPENJSON(s.Criteria, '$.OperatorIDs')
        WITH (OperatorID VARCHAR(128) '$') j
    WHERE j.OperatorID IS NOT NULL
);
GO
```

**Step 2: Verify script syntax**

Run: `sqlcmd -S localhost,1434 -U sa -P <password> -d JdeScoping -i src/JdeScoping.Database/Scripts/046_CreateSimpleTableFunctions.sql`
Expected: Commands completed successfully

**Step 3: Commit**

```bash
git add src/JdeScoping.Database/Scripts/046_CreateSimpleTableFunctions.sql
git commit -m "feat(db): add inline TVFs for simple array extraction from SearchCriteria"
```

---

## Task 3: Create Complex Table Extraction Functions

**Files:**
- Create: `src/JdeScoping.Database/Scripts/047_CreateComplexTableFunctions.sql`

**Step 1: Write the SQL script**

Uses same CTE pattern to pre-filter valid JSON before OPENJSON.

```sql
-- Migration: 047_CreateComplexTableFunctions
-- Inline TVFs to extract complex object arrays from Search.Criteria JSON
-- Pattern: CTE pre-filters valid JSON, OPENJSON...WITH for type-safe extraction

-- fn_GetSearchComponentLots: Extract ComponentLotNumbers array of objects
IF OBJECT_ID('dbo.fn_GetSearchComponentLots', 'IF') IS NOT NULL
    DROP FUNCTION dbo.fn_GetSearchComponentLots;
GO

CREATE FUNCTION dbo.fn_GetSearchComponentLots(@SearchId INT)
RETURNS TABLE
AS
RETURN
(
    WITH ValidSearch AS (
        SELECT Criteria
        FROM dbo.Search
        WHERE ID = @SearchId
          AND Criteria IS NOT NULL
          AND ISJSON(Criteria) = 1
    )
    SELECT j.LotNumber, j.ItemNumber
    FROM ValidSearch s
    CROSS APPLY OPENJSON(s.Criteria, '$.ComponentLotNumbers')
        WITH (
            LotNumber VARCHAR(30) '$.LotNumber',
            ItemNumber VARCHAR(128) '$.ItemNumber'
        ) j
);
GO

-- fn_GetSearchPartOperations: Extract PartOperations array of objects
IF OBJECT_ID('dbo.fn_GetSearchPartOperations', 'IF') IS NOT NULL
    DROP FUNCTION dbo.fn_GetSearchPartOperations;
GO

CREATE FUNCTION dbo.fn_GetSearchPartOperations(@SearchId INT)
RETURNS TABLE
AS
RETURN
(
    WITH ValidSearch AS (
        SELECT Criteria
        FROM dbo.Search
        WHERE ID = @SearchId
          AND Criteria IS NOT NULL
          AND ISJSON(Criteria) = 1
    )
    SELECT j.ItemNumber, j.OperationNumber, j.MisNumber, j.MisRevision
    FROM ValidSearch s
    CROSS APPLY OPENJSON(s.Criteria, '$.PartOperations')
        WITH (
            ItemNumber VARCHAR(128) '$.ItemNumber',
            OperationNumber VARCHAR(10) '$.OperationNumber',
            MisNumber VARCHAR(10) '$.MisNumber',
            MisRevision VARCHAR(10) '$.MisRevision'
        ) j
);
GO
```

**Step 2: Verify script syntax**

Run: `sqlcmd -S localhost,1434 -U sa -P <password> -d JdeScoping -i src/JdeScoping.Database/Scripts/047_CreateComplexTableFunctions.sql`
Expected: Commands completed successfully

**Step 3: Commit**

```bash
git add src/JdeScoping.Database/Scripts/047_CreateComplexTableFunctions.sql
git commit -m "feat(db): add inline TVFs for complex object extraction from SearchCriteria"
```

---

## Task 4: Create Validation Stored Procedure

**Files:**
- Create: `src/JdeScoping.Database/Scripts/048_CreateValidateSearchCriteriaProcedure.sql`

**Step 1: Write the SQL script**

```sql
-- Migration: 048_CreateValidateSearchCriteriaProcedure
-- Stored procedure for strict validation with THROW errors

IF OBJECT_ID('dbo.usp_ValidateSearchCriteria', 'P') IS NOT NULL
    DROP PROCEDURE dbo.usp_ValidateSearchCriteria;
GO

CREATE PROCEDURE dbo.usp_ValidateSearchCriteria(@SearchId INT)
AS
BEGIN
    SET NOCOUNT ON;
    DECLARE @Criteria VARCHAR(MAX);
    DECLARE @ErrorMsg NVARCHAR(400);

    -- Get criteria for the search
    SELECT @Criteria = Criteria
    FROM dbo.Search
    WHERE ID = @SearchId;

    -- Validate search exists
    IF @@ROWCOUNT = 0
    BEGIN
        SET @ErrorMsg = CONCAT('Search ID ', @SearchId, ' not found');
        THROW 50001, @ErrorMsg, 1;
    END

    -- Validate criteria not null
    IF @Criteria IS NULL
    BEGIN
        SET @ErrorMsg = CONCAT('Search ID ', @SearchId, ' has no criteria');
        THROW 50002, @ErrorMsg, 1;
    END

    -- Validate criteria not empty
    IF @Criteria = ''
    BEGIN
        SET @ErrorMsg = CONCAT('Search ID ', @SearchId, ' has no criteria');
        THROW 50002, @ErrorMsg, 1;
    END

    -- Validate JSON format
    IF ISJSON(@Criteria) = 0
    BEGIN
        SET @ErrorMsg = CONCAT('Search ID ', @SearchId, ' has invalid JSON');
        THROW 50003, @ErrorMsg, 1;
    END

    -- If we get here, validation passed
    RETURN 0;
END
GO
```

**Step 2: Verify script syntax**

Run: `sqlcmd -S localhost,1434 -U sa -P <password> -d JdeScoping -i src/JdeScoping.Database/Scripts/048_CreateValidateSearchCriteriaProcedure.sql`
Expected: Commands completed successfully

**Step 3: Commit**

```bash
git add src/JdeScoping.Database/Scripts/048_CreateValidateSearchCriteriaProcedure.sql
git commit -m "feat(db): add validation stored procedure with THROW errors"
```

---

## Task 5: Delete Obsolete Table Type Scripts

**Files:**
- Delete: `src/JdeScoping.Database/Scripts/033_CreateWorkOrderFilterParameterType.sql`
- Delete: `src/JdeScoping.Database/Scripts/034_CreateItemNumberFilterParameterType.sql`
- Delete: `src/JdeScoping.Database/Scripts/035_CreateProfitCenterFilterParameterType.sql`
- Delete: `src/JdeScoping.Database/Scripts/036_CreateWorkCenterFilterParameterType.sql`
- Delete: `src/JdeScoping.Database/Scripts/037_CreateOperatorFilterParameterType.sql`
- Delete: `src/JdeScoping.Database/Scripts/038_CreateComponentLotFilterParameterType.sql`
- Delete: `src/JdeScoping.Database/Scripts/039_CreateItemOperationMisFilterParameterType.sql`

**Step 1: Delete the files**

```bash
rm src/JdeScoping.Database/Scripts/033_CreateWorkOrderFilterParameterType.sql
rm src/JdeScoping.Database/Scripts/034_CreateItemNumberFilterParameterType.sql
rm src/JdeScoping.Database/Scripts/035_CreateProfitCenterFilterParameterType.sql
rm src/JdeScoping.Database/Scripts/036_CreateWorkCenterFilterParameterType.sql
rm src/JdeScoping.Database/Scripts/037_CreateOperatorFilterParameterType.sql
rm src/JdeScoping.Database/Scripts/038_CreateComponentLotFilterParameterType.sql
rm src/JdeScoping.Database/Scripts/039_CreateItemOperationMisFilterParameterType.sql
```

**Step 2: Commit**

```bash
git add -A
git commit -m "chore(db): remove obsolete Table Type scripts (replaced by extraction functions)"
```

---

## Task 6: Set Up Database Test Infrastructure

**Files:**
- Create: `tests/JdeScoping.Database.Tests/Infrastructure/DatabaseTestBase.cs`
- Modify: `tests/JdeScoping.Database.Tests/JdeScoping.Database.Tests.csproj`
- Delete: `tests/JdeScoping.Database.Tests/Placeholder.cs`

**Step 1: Update project file to add dependencies**

Add references to test infrastructure and Dapper:

```xml
<ItemGroup>
  <PackageReference Include="Dapper" Version="2.1.35" />
  <PackageReference Include="FluentAssertions" Version="6.12.0" />
  <PackageReference Include="Microsoft.Data.SqlClient" Version="5.2.0" />
</ItemGroup>

<ItemGroup>
  <ProjectReference Include="..\..\src\JdeScoping.Core\JdeScoping.Core.csproj" />
  <ProjectReference Include="..\JdeScoping.Api.IntegrationTests\JdeScoping.Api.IntegrationTests.csproj" />
</ItemGroup>
```

**Step 2: Create DatabaseTestBase.cs**

Uses xUnit Collection to disable parallel test execution (prevents cross-test contamination).

```csharp
using System.Text.Json;
using Dapper;
using JdeScoping.Core.Models.Search;
using Microsoft.Data.SqlClient;

namespace JdeScoping.Database.Tests.Infrastructure;

/// <summary>
/// xUnit Collection definition to disable parallel execution for database tests.
/// All test classes using [Collection("DatabaseTests")] run sequentially.
/// </summary>
[CollectionDefinition("DatabaseTests")]
public class DatabaseTestCollection : ICollectionFixture<DatabaseTestFixture>
{
}

/// <summary>
/// Shared fixture for database tests. Ensures database is available.
/// </summary>
public class DatabaseTestFixture : IAsyncLifetime
{
    public const string ConnectionString = "Server=localhost,1434;Database=JdeScoping;User Id=sa;Password=YourPassword123!;TrustServerCertificate=True;";

    public async Task InitializeAsync()
    {
        // Verify database is accessible
        using var connection = new SqlConnection(ConnectionString);
        await connection.OpenAsync();
    }

    public Task DisposeAsync() => Task.CompletedTask;
}

/// <summary>
/// Base class for database function tests.
/// Each test gets its own connection and cleans up created data.
/// </summary>
[Collection("DatabaseTests")]
public abstract class DatabaseTestBase : IAsyncLifetime
{
    protected SqlConnection Connection { get; private set; } = null!;

    private readonly List<int> _createdSearchIds = [];

    public async Task InitializeAsync()
    {
        Connection = new SqlConnection(DatabaseTestFixture.ConnectionString);
        await Connection.OpenAsync();
    }

    public async Task DisposeAsync()
    {
        // Clean up test data
        foreach (var id in _createdSearchIds)
        {
            await Connection.ExecuteAsync("DELETE FROM dbo.Search WHERE ID = @Id", new { Id = id });
        }

        await Connection.DisposeAsync();
    }

    /// <summary>
    /// Insert a test search with the given criteria and return the ID.
    /// </summary>
    protected async Task<int> InsertTestSearchAsync(SearchCriteria criteria, string userName = "testuser", string name = "Test Search")
    {
        var criteriaJson = JsonSerializer.Serialize(criteria);

        var id = await Connection.QuerySingleAsync<int>(
            @"INSERT INTO dbo.Search (UserName, Name, Status, Criteria)
              OUTPUT INSERTED.ID
              VALUES (@UserName, @Name, 0, @Criteria)",
            new { UserName = userName, Name = name, Criteria = criteriaJson });

        _createdSearchIds.Add(id);
        return id;
    }

    /// <summary>
    /// Insert a test search with raw criteria JSON (for testing invalid JSON scenarios).
    /// </summary>
    protected async Task<int> InsertTestSearchWithRawCriteriaAsync(string? criteriaJson, string userName = "testuser", string name = "Test Search")
    {
        var id = await Connection.QuerySingleAsync<int>(
            @"INSERT INTO dbo.Search (UserName, Name, Status, Criteria)
              OUTPUT INSERTED.ID
              VALUES (@UserName, @Name, 0, @Criteria)",
            new { UserName = userName, Name = name, Criteria = criteriaJson });

        _createdSearchIds.Add(id);
        return id;
    }
}
```

**Step 3: Delete placeholder file**

```bash
rm tests/JdeScoping.Database.Tests/Placeholder.cs
```

**Step 4: Commit**

```bash
git add -A
git commit -m "feat(tests): add DatabaseTestBase infrastructure for SQL function tests"
```

---

## Task 8: Write Scalar Function Tests

**Files:**
- Create: `tests/JdeScoping.Database.Tests/Functions/ScalarFunctionTests.cs`

**Step 1: Write the tests**

```csharp
using Dapper;
using FluentAssertions;
using JdeScoping.Core.Models.Search;
using JdeScoping.Database.Tests.Infrastructure;

namespace JdeScoping.Database.Tests.Functions;

public class ScalarFunctionTests : DatabaseTestBase
{
    [Fact]
    public async Task fn_GetSearchMinimumDt_ValidSearch_ReturnsDateTime()
    {
        // Arrange
        var expectedDate = new DateTime(2024, 6, 15, 10, 30, 0);
        var criteria = new SearchCriteria { MinimumDt = expectedDate };
        var searchId = await InsertTestSearchAsync(criteria);

        // Act
        var result = await Connection.QuerySingleOrDefaultAsync<DateTime?>(
            "SELECT dbo.fn_GetSearchMinimumDt(@SearchId)",
            new { SearchId = searchId });

        // Assert
        result.Should().BeCloseTo(expectedDate, TimeSpan.FromSeconds(1));
    }

    [Fact]
    public async Task fn_GetSearchMinimumDt_NullValue_ReturnsNull()
    {
        // Arrange
        var criteria = new SearchCriteria { MinimumDt = null };
        var searchId = await InsertTestSearchAsync(criteria);

        // Act
        var result = await Connection.QuerySingleOrDefaultAsync<DateTime?>(
            "SELECT dbo.fn_GetSearchMinimumDt(@SearchId)",
            new { SearchId = searchId });

        // Assert
        result.Should().BeNull();
    }

    [Fact]
    public async Task fn_GetSearchMinimumDt_SearchNotFound_ReturnsNull()
    {
        // Act
        var result = await Connection.QuerySingleOrDefaultAsync<DateTime?>(
            "SELECT dbo.fn_GetSearchMinimumDt(@SearchId)",
            new { SearchId = 99999 });

        // Assert
        result.Should().BeNull();
    }

    [Fact]
    public async Task fn_GetSearchMinimumDt_InvalidJson_ReturnsNull()
    {
        // Arrange
        var searchId = await InsertTestSearchWithRawCriteriaAsync("not valid json");

        // Act
        var result = await Connection.QuerySingleOrDefaultAsync<DateTime?>(
            "SELECT dbo.fn_GetSearchMinimumDt(@SearchId)",
            new { SearchId = searchId });

        // Assert
        result.Should().BeNull();
    }

    [Fact]
    public async Task fn_GetSearchMaximumDt_ValidSearch_ReturnsDateTime()
    {
        // Arrange
        var expectedDate = new DateTime(2024, 12, 31, 23, 59, 59);
        var criteria = new SearchCriteria { MaximumDt = expectedDate };
        var searchId = await InsertTestSearchAsync(criteria);

        // Act
        var result = await Connection.QuerySingleOrDefaultAsync<DateTime?>(
            "SELECT dbo.fn_GetSearchMaximumDt(@SearchId)",
            new { SearchId = searchId });

        // Assert
        result.Should().BeCloseTo(expectedDate, TimeSpan.FromSeconds(1));
    }

    [Fact]
    public async Task fn_GetSearchExtractMisData_True_ReturnsTrue()
    {
        // Arrange
        var criteria = new SearchCriteria { ExtractMisData = true };
        var searchId = await InsertTestSearchAsync(criteria);

        // Act
        var result = await Connection.QuerySingleOrDefaultAsync<bool?>(
            "SELECT dbo.fn_GetSearchExtractMisData(@SearchId)",
            new { SearchId = searchId });

        // Assert
        result.Should().BeTrue();
    }

    [Fact]
    public async Task fn_GetSearchExtractMisData_False_ReturnsFalse()
    {
        // Arrange
        var criteria = new SearchCriteria { ExtractMisData = false };
        var searchId = await InsertTestSearchAsync(criteria);

        // Act
        var result = await Connection.QuerySingleOrDefaultAsync<bool?>(
            "SELECT dbo.fn_GetSearchExtractMisData(@SearchId)",
            new { SearchId = searchId });

        // Assert
        result.Should().BeFalse();
    }

    [Fact]
    public async Task fn_GetSearchExtractMisData_NullCriteria_ReturnsNull()
    {
        // Arrange
        var searchId = await InsertTestSearchWithRawCriteriaAsync(null);

        // Act
        var result = await Connection.QuerySingleOrDefaultAsync<bool?>(
            "SELECT dbo.fn_GetSearchExtractMisData(@SearchId)",
            new { SearchId = searchId });

        // Assert
        result.Should().BeNull();
    }
}
```

**Step 2: Run tests to verify they pass**

Run: `dotnet test tests/JdeScoping.Database.Tests --filter "FullyQualifiedName~ScalarFunctionTests" -v normal`
Expected: All tests pass

**Step 3: Commit**

```bash
git add tests/JdeScoping.Database.Tests/Functions/ScalarFunctionTests.cs
git commit -m "test(db): add scalar function tests for MinimumDt, MaximumDt, ExtractMisData"
```

---

## Task 9: Write Simple Table Function Tests

**Files:**
- Create: `tests/JdeScoping.Database.Tests/Functions/SimpleTableFunctionTests.cs`

**Step 1: Write the tests**

```csharp
using Dapper;
using FluentAssertions;
using JdeScoping.Core.Models.Search;
using JdeScoping.Database.Tests.Infrastructure;

namespace JdeScoping.Database.Tests.Functions;

public class SimpleTableFunctionTests : DatabaseTestBase
{
    // WorkOrders
    [Fact]
    public async Task fn_GetSearchWorkOrders_ValidSearch_ReturnsWorkOrders()
    {
        // Arrange
        var criteria = new SearchCriteria { WorkOrderNumbers = [12345, 67890, 11111] };
        var searchId = await InsertTestSearchAsync(criteria);

        // Act
        var results = await Connection.QueryAsync<long>(
            "SELECT WorkOrderNumber FROM dbo.fn_GetSearchWorkOrders(@SearchId)",
            new { SearchId = searchId });

        // Assert
        results.Should().BeEquivalentTo([12345L, 67890L, 11111L]);
    }

    [Fact]
    public async Task fn_GetSearchWorkOrders_EmptyArray_ReturnsEmpty()
    {
        // Arrange
        var criteria = new SearchCriteria { WorkOrderNumbers = [] };
        var searchId = await InsertTestSearchAsync(criteria);

        // Act
        var results = await Connection.QueryAsync<long>(
            "SELECT WorkOrderNumber FROM dbo.fn_GetSearchWorkOrders(@SearchId)",
            new { SearchId = searchId });

        // Assert
        results.Should().BeEmpty();
    }

    [Fact]
    public async Task fn_GetSearchWorkOrders_SearchNotFound_ReturnsEmpty()
    {
        // Act
        var results = await Connection.QueryAsync<long>(
            "SELECT WorkOrderNumber FROM dbo.fn_GetSearchWorkOrders(@SearchId)",
            new { SearchId = 99999 });

        // Assert
        results.Should().BeEmpty();
    }

    // ItemNumbers
    [Fact]
    public async Task fn_GetSearchItemNumbers_ValidSearch_ReturnsItemNumbers()
    {
        // Arrange
        var criteria = new SearchCriteria { ItemNumbers = ["ITEM001", "ITEM002", "ITEM003"] };
        var searchId = await InsertTestSearchAsync(criteria);

        // Act
        var results = await Connection.QueryAsync<string>(
            "SELECT ItemNumber FROM dbo.fn_GetSearchItemNumbers(@SearchId)",
            new { SearchId = searchId });

        // Assert
        results.Should().BeEquivalentTo(["ITEM001", "ITEM002", "ITEM003"]);
    }

    [Fact]
    public async Task fn_GetSearchItemNumbers_SpecialCharacters_ReturnsCorrectly()
    {
        // Arrange
        var criteria = new SearchCriteria { ItemNumbers = ["ITEM-001", "ITEM_002", "ITEM.003"] };
        var searchId = await InsertTestSearchAsync(criteria);

        // Act
        var results = await Connection.QueryAsync<string>(
            "SELECT ItemNumber FROM dbo.fn_GetSearchItemNumbers(@SearchId)",
            new { SearchId = searchId });

        // Assert
        results.Should().BeEquivalentTo(["ITEM-001", "ITEM_002", "ITEM.003"]);
    }

    // ProfitCenters
    [Fact]
    public async Task fn_GetSearchProfitCenters_ValidSearch_ReturnsCodes()
    {
        // Arrange
        var criteria = new SearchCriteria { ProfitCenters = ["PC01", "PC02"] };
        var searchId = await InsertTestSearchAsync(criteria);

        // Act
        var results = await Connection.QueryAsync<string>(
            "SELECT Code FROM dbo.fn_GetSearchProfitCenters(@SearchId)",
            new { SearchId = searchId });

        // Assert
        results.Should().BeEquivalentTo(["PC01", "PC02"]);
    }

    // WorkCenters
    [Fact]
    public async Task fn_GetSearchWorkCenters_ValidSearch_ReturnsCodes()
    {
        // Arrange
        var criteria = new SearchCriteria { WorkCenters = ["WC001", "WC002", "WC003"] };
        var searchId = await InsertTestSearchAsync(criteria);

        // Act
        var results = await Connection.QueryAsync<string>(
            "SELECT Code FROM dbo.fn_GetSearchWorkCenters(@SearchId)",
            new { SearchId = searchId });

        // Assert
        results.Should().BeEquivalentTo(["WC001", "WC002", "WC003"]);
    }

    // OperatorIDs
    [Fact]
    public async Task fn_GetSearchOperatorIDs_ValidSearch_ReturnsOperatorIDs()
    {
        // Arrange
        var criteria = new SearchCriteria { OperatorIDs = ["OP001", "OP002"] };
        var searchId = await InsertTestSearchAsync(criteria);

        // Act
        var results = await Connection.QueryAsync<string>(
            "SELECT OperatorID FROM dbo.fn_GetSearchOperatorIDs(@SearchId)",
            new { SearchId = searchId });

        // Assert
        results.Should().BeEquivalentTo(["OP001", "OP002"]);
    }

    // Edge cases
    [Fact]
    public async Task fn_GetSearchWorkOrders_InvalidJson_ReturnsEmpty()
    {
        // Arrange
        var searchId = await InsertTestSearchWithRawCriteriaAsync("not valid json");

        // Act
        var results = await Connection.QueryAsync<long>(
            "SELECT WorkOrderNumber FROM dbo.fn_GetSearchWorkOrders(@SearchId)",
            new { SearchId = searchId });

        // Assert
        results.Should().BeEmpty();
    }

    [Fact]
    public async Task fn_GetSearchWorkOrders_NullCriteria_ReturnsEmpty()
    {
        // Arrange
        var searchId = await InsertTestSearchWithRawCriteriaAsync(null);

        // Act
        var results = await Connection.QueryAsync<long>(
            "SELECT WorkOrderNumber FROM dbo.fn_GetSearchWorkOrders(@SearchId)",
            new { SearchId = searchId });

        // Assert
        results.Should().BeEmpty();
    }

    [Fact]
    public async Task fn_GetSearchWorkOrders_LargeArray_ReturnsAll()
    {
        // Arrange
        var workOrders = Enumerable.Range(1, 1000).Select(i => (long)i).ToList();
        var criteria = new SearchCriteria { WorkOrderNumbers = workOrders };
        var searchId = await InsertTestSearchAsync(criteria);

        // Act
        var results = await Connection.QueryAsync<long>(
            "SELECT WorkOrderNumber FROM dbo.fn_GetSearchWorkOrders(@SearchId)",
            new { SearchId = searchId });

        // Assert
        results.Should().HaveCount(1000);
        results.Should().BeEquivalentTo(workOrders);
    }
}
```

**Step 2: Run tests to verify they pass**

Run: `dotnet test tests/JdeScoping.Database.Tests --filter "FullyQualifiedName~SimpleTableFunctionTests" -v normal`
Expected: All tests pass

**Step 3: Commit**

```bash
git add tests/JdeScoping.Database.Tests/Functions/SimpleTableFunctionTests.cs
git commit -m "test(db): add simple table function tests for array extraction"
```

---

## Task 10: Write Complex Table Function Tests

**Files:**
- Create: `tests/JdeScoping.Database.Tests/Functions/ComplexTableFunctionTests.cs`

**Step 1: Write the tests**

```csharp
using Dapper;
using FluentAssertions;
using JdeScoping.Core.Models.Search;
using JdeScoping.Core.ViewModels;
using JdeScoping.Database.Tests.Infrastructure;

namespace JdeScoping.Database.Tests.Functions;

public class ComplexTableFunctionTests : DatabaseTestBase
{
    // ComponentLots
    [Fact]
    public async Task fn_GetSearchComponentLots_ValidSearch_ReturnsLots()
    {
        // Arrange
        var criteria = new SearchCriteria
        {
            ComponentLotNumbers =
            [
                new LotViewModel { LotNumber = "LOT001", ItemNumber = "ITEM001" },
                new LotViewModel { LotNumber = "LOT002", ItemNumber = "ITEM002" }
            ]
        };
        var searchId = await InsertTestSearchAsync(criteria);

        // Act
        var results = await Connection.QueryAsync<(string LotNumber, string ItemNumber)>(
            "SELECT LotNumber, ItemNumber FROM dbo.fn_GetSearchComponentLots(@SearchId)",
            new { SearchId = searchId });

        // Assert
        results.Should().HaveCount(2);
        results.Should().Contain(x => x.LotNumber == "LOT001" && x.ItemNumber == "ITEM001");
        results.Should().Contain(x => x.LotNumber == "LOT002" && x.ItemNumber == "ITEM002");
    }

    [Fact]
    public async Task fn_GetSearchComponentLots_EmptyArray_ReturnsEmpty()
    {
        // Arrange
        var criteria = new SearchCriteria { ComponentLotNumbers = [] };
        var searchId = await InsertTestSearchAsync(criteria);

        // Act
        var results = await Connection.QueryAsync<(string LotNumber, string ItemNumber)>(
            "SELECT LotNumber, ItemNumber FROM dbo.fn_GetSearchComponentLots(@SearchId)",
            new { SearchId = searchId });

        // Assert
        results.Should().BeEmpty();
    }

    [Fact]
    public async Task fn_GetSearchComponentLots_SearchNotFound_ReturnsEmpty()
    {
        // Act
        var results = await Connection.QueryAsync<(string LotNumber, string ItemNumber)>(
            "SELECT LotNumber, ItemNumber FROM dbo.fn_GetSearchComponentLots(@SearchId)",
            new { SearchId = 99999 });

        // Assert
        results.Should().BeEmpty();
    }

    // PartOperations
    [Fact]
    public async Task fn_GetSearchPartOperations_ValidSearch_ReturnsOperations()
    {
        // Arrange
        var criteria = new SearchCriteria
        {
            PartOperations =
            [
                new PartOperationViewModel
                {
                    ItemNumber = "ITEM001",
                    OperationNumber = "10",
                    MisNumber = "MIS001",
                    MisRevision = "A"
                },
                new PartOperationViewModel
                {
                    ItemNumber = "ITEM002",
                    OperationNumber = "20",
                    MisNumber = "MIS002",
                    MisRevision = "B"
                }
            ]
        };
        var searchId = await InsertTestSearchAsync(criteria);

        // Act
        var results = await Connection.QueryAsync<(string ItemNumber, string OperationNumber, string MisNumber, string MisRevision)>(
            "SELECT ItemNumber, OperationNumber, MisNumber, MisRevision FROM dbo.fn_GetSearchPartOperations(@SearchId)",
            new { SearchId = searchId });

        // Assert
        results.Should().HaveCount(2);
        results.Should().Contain(x => x.ItemNumber == "ITEM001" && x.OperationNumber == "10" && x.MisNumber == "MIS001" && x.MisRevision == "A");
        results.Should().Contain(x => x.ItemNumber == "ITEM002" && x.OperationNumber == "20" && x.MisNumber == "MIS002" && x.MisRevision == "B");
    }

    [Fact]
    public async Task fn_GetSearchPartOperations_NullOptionalFields_ReturnsNulls()
    {
        // Arrange
        var criteria = new SearchCriteria
        {
            PartOperations =
            [
                new PartOperationViewModel
                {
                    ItemNumber = "ITEM001",
                    OperationNumber = "10",
                    MisNumber = null,
                    MisRevision = null
                }
            ]
        };
        var searchId = await InsertTestSearchAsync(criteria);

        // Act
        var results = await Connection.QueryAsync<(string ItemNumber, string OperationNumber, string? MisNumber, string? MisRevision)>(
            "SELECT ItemNumber, OperationNumber, MisNumber, MisRevision FROM dbo.fn_GetSearchPartOperations(@SearchId)",
            new { SearchId = searchId });

        // Assert
        results.Should().HaveCount(1);
        var result = results.First();
        result.ItemNumber.Should().Be("ITEM001");
        result.OperationNumber.Should().Be("10");
        result.MisNumber.Should().BeNull();
        result.MisRevision.Should().BeNull();
    }

    [Fact]
    public async Task fn_GetSearchPartOperations_InvalidJson_ReturnsEmpty()
    {
        // Arrange
        var searchId = await InsertTestSearchWithRawCriteriaAsync("not valid json");

        // Act
        var results = await Connection.QueryAsync<(string ItemNumber, string OperationNumber, string MisNumber, string MisRevision)>(
            "SELECT ItemNumber, OperationNumber, MisNumber, MisRevision FROM dbo.fn_GetSearchPartOperations(@SearchId)",
            new { SearchId = searchId });

        // Assert
        results.Should().BeEmpty();
    }

    // Unicode test
    [Fact]
    public async Task fn_GetSearchComponentLots_UnicodeCharacters_ReturnsCorrectly()
    {
        // Arrange
        var criteria = new SearchCriteria
        {
            ComponentLotNumbers =
            [
                new LotViewModel { LotNumber = "LOT-日本語", ItemNumber = "アイテム001" }
            ]
        };
        var searchId = await InsertTestSearchAsync(criteria);

        // Act
        var results = await Connection.QueryAsync<(string LotNumber, string ItemNumber)>(
            "SELECT LotNumber, ItemNumber FROM dbo.fn_GetSearchComponentLots(@SearchId)",
            new { SearchId = searchId });

        // Assert
        results.Should().HaveCount(1);
        results.First().LotNumber.Should().Be("LOT-日本語");
        results.First().ItemNumber.Should().Be("アイテム001");
    }
}
```

**Step 2: Run tests to verify they pass**

Run: `dotnet test tests/JdeScoping.Database.Tests --filter "FullyQualifiedName~ComplexTableFunctionTests" -v normal`
Expected: All tests pass

**Step 3: Commit**

```bash
git add tests/JdeScoping.Database.Tests/Functions/ComplexTableFunctionTests.cs
git commit -m "test(db): add complex table function tests for ComponentLots and PartOperations"
```

---

## Task 11: Write Validation Procedure Tests

**Files:**
- Create: `tests/JdeScoping.Database.Tests/Procedures/ValidateSearchCriteriaProcedureTests.cs`

**Step 1: Write the tests**

```csharp
using Dapper;
using FluentAssertions;
using JdeScoping.Core.Models.Search;
using JdeScoping.Database.Tests.Infrastructure;
using Microsoft.Data.SqlClient;

namespace JdeScoping.Database.Tests.Procedures;

public class ValidateSearchCriteriaProcedureTests : DatabaseTestBase
{
    [Fact]
    public async Task usp_ValidateSearchCriteria_ValidSearch_Succeeds()
    {
        // Arrange
        var criteria = new SearchCriteria { WorkOrderNumbers = [12345] };
        var searchId = await InsertTestSearchAsync(criteria);

        // Act
        var act = async () => await Connection.ExecuteAsync(
            "EXEC dbo.usp_ValidateSearchCriteria @SearchId",
            new { SearchId = searchId });

        // Assert
        await act.Should().NotThrowAsync();
    }

    [Fact]
    public async Task usp_ValidateSearchCriteria_SearchNotFound_ThrowsError50001()
    {
        // Act
        var act = async () => await Connection.ExecuteAsync(
            "EXEC dbo.usp_ValidateSearchCriteria @SearchId",
            new { SearchId = 99999 });

        // Assert
        var ex = await act.Should().ThrowAsync<SqlException>();
        ex.Which.Number.Should().Be(50001);
        ex.Which.Message.Should().Contain("Search ID 99999 not found");
    }

    [Fact]
    public async Task usp_ValidateSearchCriteria_NullCriteria_ThrowsError50002()
    {
        // Arrange
        var searchId = await InsertTestSearchWithRawCriteriaAsync(null);

        // Act
        var act = async () => await Connection.ExecuteAsync(
            "EXEC dbo.usp_ValidateSearchCriteria @SearchId",
            new { SearchId = searchId });

        // Assert
        var ex = await act.Should().ThrowAsync<SqlException>();
        ex.Which.Number.Should().Be(50002);
        ex.Which.Message.Should().Contain("has no criteria");
    }

    [Fact]
    public async Task usp_ValidateSearchCriteria_EmptyCriteria_ThrowsError50002()
    {
        // Arrange
        var searchId = await InsertTestSearchWithRawCriteriaAsync("");

        // Act
        var act = async () => await Connection.ExecuteAsync(
            "EXEC dbo.usp_ValidateSearchCriteria @SearchId",
            new { SearchId = searchId });

        // Assert
        var ex = await act.Should().ThrowAsync<SqlException>();
        ex.Which.Number.Should().Be(50002);
        ex.Which.Message.Should().Contain("has no criteria");
    }

    [Fact]
    public async Task usp_ValidateSearchCriteria_InvalidJson_ThrowsError50003()
    {
        // Arrange
        var searchId = await InsertTestSearchWithRawCriteriaAsync("not valid json {{{");

        // Act
        var act = async () => await Connection.ExecuteAsync(
            "EXEC dbo.usp_ValidateSearchCriteria @SearchId",
            new { SearchId = searchId });

        // Assert
        var ex = await act.Should().ThrowAsync<SqlException>();
        ex.Which.Number.Should().Be(50003);
        ex.Which.Message.Should().Contain("has invalid JSON");
    }

    [Fact]
    public async Task usp_ValidateSearchCriteria_EmptyJsonObject_Succeeds()
    {
        // Arrange - empty JSON object is valid
        var searchId = await InsertTestSearchWithRawCriteriaAsync("{}");

        // Act
        var act = async () => await Connection.ExecuteAsync(
            "EXEC dbo.usp_ValidateSearchCriteria @SearchId",
            new { SearchId = searchId });

        // Assert
        await act.Should().NotThrowAsync();
    }
}
```

**Step 2: Run tests to verify they pass**

Run: `dotnet test tests/JdeScoping.Database.Tests --filter "FullyQualifiedName~ValidateSearchCriteriaProcedureTests" -v normal`
Expected: All tests pass

**Step 3: Commit**

```bash
git add tests/JdeScoping.Database.Tests/Procedures/ValidateSearchCriteriaProcedureTests.cs
git commit -m "test(db): add validation procedure tests for error handling"
```

---

## Task 12: Run All Database Tests

**Step 1: Run all tests**

Run: `dotnet test tests/JdeScoping.Database.Tests -v normal`
Expected: All tests pass

**Step 2: If any failures, fix and re-run**

---

## Task 13: Update ISearchQueryBuilder Interface

**Files:**
- Modify: `src/JdeScoping.DataAccess/Interfaces/ISearchQueryBuilder.cs`

**Step 1: Read current interface**

**Step 2: Update to use searchId parameter**

```csharp
using JdeScoping.DataAccess.Models;

namespace JdeScoping.DataAccess.Interfaces;

/// <summary>
/// Builds SQL queries for search operations.
/// </summary>
public interface ISearchQueryBuilder
{
    /// <summary>
    /// Builds the main search query using extraction functions.
    /// </summary>
    /// <param name="searchId">The search ID to extract criteria from.</param>
    /// <returns>Query result with SQL and parameters.</returns>
    SearchQueryResult BuildSearchQuery(int searchId);

    /// <summary>
    /// Builds the MIS data extraction query.
    /// </summary>
    /// <param name="searchId">The search ID to extract criteria from.</param>
    /// <returns>Query result with SQL and parameters.</returns>
    SearchQueryResult BuildMisQuery(int searchId);

    /// <summary>
    /// Builds the MIS non-match extraction query.
    /// </summary>
    /// <param name="searchId">The search ID.</param>
    /// <returns>Query result with SQL and parameters.</returns>
    SearchQueryResult BuildMisNonMatchQuery(int searchId);
}
```

**Step 3: Commit**

```bash
git add src/JdeScoping.DataAccess/Interfaces/ISearchQueryBuilder.cs
git commit -m "refactor(data-access): update ISearchQueryBuilder to use searchId parameter"
```

---

## Task 14: Update SqlKataSearchQueryBuilder

**Files:**
- Modify: `src/JdeScoping.DataAccess/QueryBuilders/SqlKataSearchQueryBuilder.cs`

**Step 1: Read current implementation**

**Step 2: Update to use extraction functions**

Replace TVP temp table population with function calls. The key change is in filter handler setup:

Instead of:
```sql
INSERT INTO #P_WorkOrders SELECT * FROM @p_WorkOrders
```

Now generates:
```sql
INSERT INTO #P_WorkOrders SELECT WorkOrderNumber FROM dbo.fn_GetSearchWorkOrders(@SearchId)
```

**Step 3: Remove filter handler dependencies**

The query builder no longer needs filter handlers that populate from SearchModel.

**Step 4: Commit**

```bash
git add src/JdeScoping.DataAccess/QueryBuilders/SqlKataSearchQueryBuilder.cs
git commit -m "refactor(data-access): update SqlKataSearchQueryBuilder to use extraction functions"
```

---

## Task 15: Update SearchProcessor

**Files:**
- Modify: `src/JdeScoping.DataAccess/Services/SearchProcessor.cs`

**Step 1: Read current implementation**

**Step 2: Simplify to pass searchId only**

Remove code that:
- Deserializes SearchCriteria
- Populates SearchModel filter lists
- Creates TVP parameters

Replace with:
- Pass searchId to query builder
- Query builder generates SQL that calls extraction functions

**Step 3: Commit**

```bash
git add src/JdeScoping.DataAccess/Services/SearchProcessor.cs
git commit -m "refactor(data-access): simplify SearchProcessor to pass searchId only"
```

---

## Task 16: Simplify SearchModel

**Files:**
- Modify: `src/JdeScoping.DataAccess/Models/SearchModel.cs`

**Step 1: Remove filter properties**

Remove:
- `WorkOrderFilter` and `WorkOrderFilterEnabled`
- `ItemNumberFilter` and `ItemNumberFilterEnabled`
- `ProfitCenterFilter` and `ProfitCenterFilterEnabled`
- `WorkCenterFilter` and `WorkCenterFilterEnabled`
- `OperatorFilter` and `OperatorFilterEnabled`
- `ComponentLotFilter` and `ComponentLotFilterEnabled`
- `ItemOperationMisFilter` and `ItemOperationMisFilterEnabled`
- `MinimumDt`, `MaximumDt`, `TimespanFilterEnabled`
- `ExtractMisData`

Keep:
- `Id`, `UserName`, `Name`
- `SubmitDt`, `StartDt`, `EndDt`
- `Results`, `MisResults`, `MisNonMatchResults`

**Step 2: Commit**

```bash
git add src/JdeScoping.DataAccess/Models/SearchModel.cs
git commit -m "refactor(data-access): simplify SearchModel by removing filter properties"
```

---

## Task 17: Delete TableValuedParameterExtensions

**Files:**
- Delete: `src/JdeScoping.DataAccess/Extensions/TableValuedParameterExtensions.cs`

**Step 1: Delete the file**

```bash
rm src/JdeScoping.DataAccess/Extensions/TableValuedParameterExtensions.cs
```

**Step 2: Commit**

```bash
git add -A
git commit -m "chore(data-access): delete obsolete TableValuedParameterExtensions"
```

---

## Task 18: Delete FilterEntries

**Files:**
- Delete: `src/JdeScoping.DataAccess/Models/FilterEntries/` directory

**Step 1: List files to delete**

```bash
ls src/JdeScoping.DataAccess/Models/FilterEntries/
```

**Step 2: Delete the directory**

```bash
rm -rf src/JdeScoping.DataAccess/Models/FilterEntries/
```

**Step 3: Commit**

```bash
git add -A
git commit -m "chore(data-access): delete obsolete FilterEntries models"
```

---

## Task 19: Update Related Tests

**Files:**
- Modify/Delete tests that use old SearchModel or TVP code

**Step 1: Find affected tests**

```bash
grep -r "WorkOrderFilter\|TableValuedParameter\|FilterEntry" tests/
```

**Step 2: Update or delete affected tests**

- `TableValuedParameterExtensionsTests.cs` - DELETE
- `WorkOrderFilterHandlerTests.cs` - DELETE or UPDATE
- `SqlKataSearchQueryBuilderTests.cs` - UPDATE to use new signature

**Step 3: Run all tests to verify**

```bash
dotnet test
```

**Step 4: Commit**

```bash
git add -A
git commit -m "test: update tests for new SearchQueryBuilder signature"
```

---

## Task 20: Run Full Test Suite

**Step 1: Build solution**

```bash
dotnet build
```

**Step 2: Run all tests**

```bash
dotnet test
```

**Step 3: Fix any failures**

---

## Task 21: Manual End-to-End Verification

**Step 1: Start the application**

**Step 2: Create a search with various criteria**

**Step 3: Submit the search and verify it processes correctly**

**Step 4: Check the results are correct**

---

## Task 22: Update OpenSpec Specifications

**Files:**
- Modify: `openspec/specs/data-access/spec.md`
- Modify: `openspec/specs/search-processing/spec.md`
- Modify: `openspec/specs/database-schema/spec.md`

**Step 1: Update data-access spec**

Remove TVP references, add extraction function requirements.

**Step 2: Update search-processing spec**

Update query generation requirements.

**Step 3: Update database-schema spec**

Document the 11 extraction functions and validation procedure.

**Step 4: Run validation**

```bash
openspec validate --specs
```

**Step 5: Commit**

```bash
git add openspec/
git commit -m "docs(specs): update specifications for extraction functions"
```

---

## Task 23: Update Architecture Documentation

**Files:**
- Modify: `DOCUMENTATION/Architecture/` (if exists)

**Step 1: Update data flow diagrams**

Remove TVP step, add SQL extraction step.

**Step 2: Commit**

```bash
git add DOCUMENTATION/
git commit -m "docs: update architecture documentation for extraction functions"
```

---

## Task 24: Add Database Tests Documentation

**Files:**
- Create: `DOCUMENTATION/Testing/DatabaseTests.md`

**Step 1: Document test infrastructure**

- DatabaseTestBase usage
- Connection string configuration
- Test categories

**Step 2: Commit**

```bash
git add DOCUMENTATION/
git commit -m "docs: add Database.Tests documentation"
```

---

## Task 25: Create ExtractionFunctions Reference

**Files:**
- Create: `DOCUMENTATION/Database/ExtractionFunctions.md`

**Step 1: Document all functions**

- Function signatures
- Parameters
- Return types
- Examples
- Error handling behavior

**Step 2: Commit**

```bash
git add DOCUMENTATION/
git commit -m "docs: add ExtractionFunctions reference documentation"
```

---

## Task 26: Final Verification and Cleanup

**Step 1: Run full test suite one more time**

```bash
dotnet test
```

**Step 2: Verify all acceptance criteria are met**

**Step 3: Create summary commit if needed**

```bash
git log --oneline -20
```