IncQL language docs

This section documents the current IncQL package surface.

• Use reference/ for API shape, signatures, and current behavior contracts.
• Use how-to/ for concrete task workflows.
• Use explanation/ for mental models, usage framing, and tradeoffs.

Current entry points

Core carriers

• Build deferred dataset transformations (How-to)
• Expand rows with generators (How-to)
• Normalize semi-structured fields (How-to)
• Work with nested row values (How-to)
• Dataset carriers (Reference)
• Dataset carriers (Explanation)
• Dataset methods (Reference)
• Query blocks (Reference)

Execution and materialization

• Capture execution observations and adapter coverage (How-to)
• Inspect governed evidence (How-to)
• Observe data quality checks (How-to)
• Execution context (Reference)
• Execution context (Explanation)

Analytical functions

• Add window columns (How-to)
• Estimate approximate metrics (How-to)
• Build typed HyperLogLog sketches (How-to)
• Inspect typed variant payloads (How-to)

Substrait boundary

• Substrait read-root and binding contract
• Substrait conformance
• Substrait operator catalog
• Substrait revision and extension policy

Local evidence

• Inspect a plan and lineage graph (How-to)
• Local inspection
• Governed attributes and policy checkpoints
• Quality assertions and observations