1. Practical MongoDB Aggregations
2. Credits
3. Advert
4. Foreword
5. Who This Book Is For
6. 1. Introduction
7. 1. 1.1. Introducing MongoDB Aggregations
   2. 1.2. History of MongoDB Aggregations
   3. 1.3. Getting Started
   4. 1.4. Getting Help
8. 2. Guiding Tips & Principles
9. 1. 2.1. Embrace Composability For Increased Productivity
   2. 2.2. Better Alternatives To A Project Stage
   3. 2.3. Using Explain Plans
   4. 2.4. Pipeline Performance Considerations
   5. 2.5. Expressions Explained
   6. 2.6. Sharding Considerations
   7. 2.7. Advanced Use Of Expressions For Array Processing
10. 3. Aggregations By Example
11. 1. 3.1. Foundational Examples
    2. 1. 3.1.1. Filtered Top Subset
       2. 3.1.2. Group & Total
       3. 3.1.3. Unpack Arrays & Group Differently
       4. 3.1.4. Distinct List Of Values
    3. 3.2. Joining Data Examples
    4. 1. 3.2.1. One-to-One Join
       2. 3.2.2. Multi-Field Join & One-to-Many
    5. 3.3. Data Types Conversion Examples
    6. 1. 3.3.1. Strongly-Typed Conversion
       2. 3.3.2. Convert Incomplete Date Strings
    7. 3.4. Trend Analysis Examples
    8. 1. 3.4.1. Faceted Classification
       2. 3.4.2. Largest Graph Network
       3. 3.4.3. Incremental Analytics
    9. 3.5. Securing Data Examples
    10. 1. 3.5.1. Redacted View
        2. 3.5.2. Mask Sensitive Fields
        3. 3.5.3. Role Programmatic Restricted View
    11. 3.6. Time-Series Examples
    12. 1. 3.6.1. IoT Power Consumption
        2. 3.6.2. State Change Boundaries
    13. 3.7. Array Manipulation Examples
    14. 1. 3.7.1. Summarising Arrays For First, Last, Min, Max & Average
        2. 3.7.2. Pivot Array Items By A Key
        3. 3.7.3. Array Sorting & Percentiles
        4. 3.7.4. Array Element Grouping
        5. 3.7.5. Array Fields Joining
        6. 3.7.6. Comparison Of Two Arrays
    15. 3.8. Full Text Search Examples
    16. 1. 3.8.1. Compound Text Search Criteria
        2. 3.8.2. Facets And Counts Text Search
12. 4. Appendices
13. 1. 4.1. Appendix: Stages Cheatsheet
    2. 4.2. Appendix: Stages Cheatsheet Source
    3. 4.3. Appendix: Create Atlas Search Index
    4. 4.4. Appendix: Book Version History