Module spacetimedb_lib::relation

Structs

• Column
• ColumnOnlyField
• DbTable
  A stored table from [RelationalDB]
• Header
• HeaderOnlyField
• MemTable
  An in-memory table
• MemTableWithoutTableName
  An in-memory table
• RelIter
  Common wrapper for relational iterators that work like cursors.
• RelValue
  RelValue represents a materialized row during query execution. In particular it is the type generated/consumed by a Relation operator. This is in contrast to a DataRef which represents a row belonging to a table. The difference being that a RelValue’s DataKey is optional since relational operators can modify their input rows.
• RelValueRef
  A borrowed version of RelValue.
• RowCount
  An estimate for the range of rows in the Relation
• TableField

Enums

• FieldExpr
• FieldName
• FieldOnly
• Table

Traits

• Relation
  A Relation is anything that could be represented as a Header of [ColumnName:ColumnType] that generates rows/tuples of AlgebraicValue that exactly match that Header.

Functions

• calculate_hash
• extract_table_field