Module query_source

Types related to describing schema, and interactions between tables.

Most traits in this module are derived or generated by table!.

Structs

• Alias
  Represents an alias within diesel’s query builder
• AliasedField
  Represents an aliased field (column) within diesel’s query builder
• MoreThanOnce
  A table appears in the from clause two or more times.
• Never
  A table never appears in the from clause.
• Once
  A table appears in the from clause exactly one time.

Traits

• AliasSource
  Types created by the alias! macro that serve to distinguish between aliases implement this trait.
• AppearsInFromClause
  Determines how many times Self appears in QS
• Column
  A column on a database table. Types which implement this trait should have been generated by the table! macro.
• JoinTo
  Indicates that two tables can be joined without an explicit ON clause.
• Plus
  Add two peano numbers together.
• QuerySource
  Represents a type which can appear in the FROM clause. Apps should not need to concern themselves with this trait.
• SizeRestrictedColumn
  Max length for columns of type Char/Varchar…
• Table
  A SQL database table. Types which implement this trait should have been generated by the table! macro.
• TableNotEqual
  Allows Diesel to implement some internal traits for two tables that are distinct.