Delta Lake

1. Introduction

   What Delta Lake is, ACID transactions and the transaction log.

2. Table Batch Reads and Writes

   Creating, reading, writing and time-traveling Delta tables.

3. Table Streaming Reads and Writes

   Using Delta tables as streaming sources and sinks.

4. Table Deletes, Updates and Merges

   DELETE, UPDATE and MERGE upserts.

5. Concurrency Control

   Optimistic concurrency, isolation levels and conflicts.

6. Optimizations

   OPTIMIZE compaction, Z-order and data skipping.

7. Table Utility Commands

   VACUUM, DESCRIBE HISTORY, RESTORE and CONVERT.

8. Change Data Feed

   Row-level change tracking between versions.

9. Column Mapping

   Renaming and dropping columns without rewriting data.

10. Constraints and Generated Columns

    CHECK constraints and generated columns.

11. Deletion Vectors

    Merge-on-read style deletes.

12. Liquid Clustering

    Clustering tables without static partitions.

13. Storage Configuration

    Cloud object storage support and requirements.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.