Module mz_repr::relation

Re-exports

• pub use crate::relation_and_scalar::ProtoColumnMetadata;
• pub use crate::relation_and_scalar::ProtoColumnName;
• pub use crate::relation_and_scalar::ProtoColumnType;
• pub use crate::relation_and_scalar::ProtoRelationDesc;
• pub use crate::relation_and_scalar::ProtoRelationType;
• pub use crate::relation_and_scalar::ProtoRelationVersion;

Structs

• ColumnIndex
  Stable index of a column in a RelationDesc.
• ColumnMetadata 🔒
  Metadata (other than type) for a column in a RelationDesc.
• ColumnName
  The name of a column in a RelationDesc.
• ColumnType
  The type of a Datum.
• NotNullViolation
  Expression violated not-null constraint on named column
• RelationDesc
  A description of the shape of a relation.
• RelationDescBuilder
  A builder for a RelationDesc.
• RelationType
  The type of a relation.
• RelationVersion
  The version a given column was added at.
• VersionedRelationDesc
  A wrapper around RelationDesc that provides an interface for adding columns and generating new versions.

Enums

• PropRelationDescDiff
  Diffs that can be generated proptest and applied to a RelationDesc to exercise schema migrations.
• RelationVersionSelector
  Describes a RelationDesc at a specific version of a VersionedRelationDesc.

Functions

• arb_relation_desc
  Returns a Strategy that generates an arbitrary RelationDesc with a number columns within the range provided.
• arb_relation_desc_diff
  Generates a set of PropRelationDescDiffs based on some source RelationDesc.
• arb_row_for_relation
  Returns a Strategy that yields arbitrary Rows for the provided RelationDesc.
• return_true 🔒
  This method exists solely for the purpose of making ColumnType nullable by default in unit tests. The default value of a bool is false, and the only way to make an object take on any other value by default is to pass it a function that returns the desired default value. See https://github.com/serde-rs/serde/issues/1030