Module rel_common 

Nested message and enum types in RelCommon.

Modules

hint

Nested message and enum types in Hint.

Structs

Direct

Direct indicates no change on presence and ordering of fields in the output.

Emit

Remap which fields are output and in which order

Hint

Changes to the operation that can influence efficiency/performance but should not impact correctness.

Enums

EmitKind

Controls which of the relation’s columns are output and in what order. Leaving emit_kind unset is equivalent to setting Direct: the relation’s columns are output as is. An absent RelCommon on a relation is likewise treated as Direct. Producers are encouraged to set it explicitly to express the intent.