Alex Merced Tutorialshandbook

775 tutorials · free to read

A working handbook for data and software engineering.

Hands-on tutorials by Alex Merced on Apache Iceberg, the data lakehouse, pipelines, agentic AI, and the languages and tools that hold it all together.

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  1. 01Cross-Cloud Credential Vending in Apache Polaris and the End of Permanent Storage KeysHow Apache Polaris vends short-lived, prefix-scoped storage credentials across AWS, Azure, and GCP, and how to retire permanent storage keys for good.Apache PolarisAug 04, 2026
  2. 02Designing Policy-Aware Telemetry Tables for AI Systems in Apache IcebergDesigning policy-aware AI telemetry tables in Apache Iceberg: what to log, tamper evidence, retention against conflicting deletion requirements, and tracing agent decisions.AI & AgentsAug 04, 2026
  3. 03Defending the Lakehouse Gateway Against Prompt Injection and Data ExfiltrationDefending the lakehouse gateway against prompt injection and data exfiltration: per-user identity, no-SQL tool surfaces, volume bounds, and detection in query behavior.AI & AgentsAug 04, 2026
  4. 04How the Iceberg REST Catalog Turned Into the Lakehouse Control PlaneHow the Iceberg REST catalog became the lakehouse control plane: multi-table atomic commits, credential vending, capability negotiation, and what still breaks.Apache IcebergAug 04, 2026
  5. 05A Migration Playbook for Moving Legacy Warehouses onto Apache IcebergA dependency-first playbook for migrating legacy warehouses onto Apache Iceberg: snapshot vs migrate vs add_files, four-level parity validation, and federation-based cutover.Data LakehouseAug 04, 2026
  6. 06What Zero-Copy Data Sharing Actually Does Between Salesforce, Snowflake, and DatabricksWhat zero-copy data sharing actually does across Salesforce, Snowflake, and Databricks: query federation, file federation, catalog federation, and when copying still wins.Apache IcebergAug 04, 2026