Metadata Design Document Noun Interpretation Overall architecture Metadata structure Data stream Implementation details Metadata catalogue Start-up process Metadata Read-Write...

GROUPING SETS DESIGN 1. GROUPING SETS Background 1.1 GROUPING SETS Syntax 1.2 ROLLUP Syntax 1.3 CUBE Syntax 1.4 GROUPING and GROUPING_ID Function 1.5 Composition and nesting of...

Schema design tips Druid’s data model If you’re coming from a… Relational model Time series model Log aggregation model General tips and best practices Rollup Partitioning an...

Schema design tips Druid’s data model If you’re coming from a… Relational model Time series model Log aggregation model General tips and best practices Rollup Partitioning an...

Design database schema Create hypertable Design database schema When you design a database schema, you need to think about what kind of data it stores. This tutorial is about ...

ORC Design and Implementation Introduction Use-cases Features LLJIT and LLLazyJIT Design Overview Top Level APIs Absolute Symbols, Aliases, and Reexports Absolute Symbols Al...

UX Research & Design How to contribute Participate in UX research Report UX issues Work on UX issues Test new features Next steps UX Research & Design Over the course of ...

Template Design Philosophy 1. Separate logic from presentation 2. Discourage redundancy 3. Be decoupled from HTML 4. XML should not be used for template languages 5. Assume des...

Sequences, Abstraction Design Sequences, Abstraction Design Understanding asynquence begins with understanding a fundamental abstraction: any series of steps for a task, whethe...

Two phase config changes keep the cluster safe Permanent loss of quorum requires new cluster Do not use public discovery service for runtime reconfiguration Runtime reconfigura...