Module sql::plan[−][src]

SQL planning.

SQL planning is the process of taking the abstract syntax tree of a Statement and turning it into a Plan that the dataflow layer can execute.

Statements must be purified before they can be planned. See the pure module for details.

Structs

Aug
Explanation	An `Explanation` facilitates pretty-printing of a `HirRelationExpr`.
Index
Params	A vector of values to which parameter references should be bound.
PlanContext	Controls planning of a SQL query.
QueryContext	The state required when planning a `Query`.
Sink
Source
StatementContext	Immutable state that applies to the planning of an entire `Statement`.
StatementDesc	Describes the output of a SQL statement.
Table
Type
View

CopyFormat
ExecuteTimeout
HirRelationExpr	Just like MirRelationExpr, except where otherwise noted below.
IndexOption
IndexOptionName
MutationKind
PeekWhen	Specifies when a `Peek` should occur.
Plan	Instructions for executing a SQL query.
PlanError
QueryLifetime	Specifies how long a query will live. This impacts whether the query is allowed to reason about the time at which it is running, e.g., by calling the `now()` function.
TypeInner

describe	Creates a description of the purified statement `stmt`.
plan	Produces a `Plan` from the purified statement `stmt`.
plan_default_expr
resolve_names
resolve_names_data_type
scalar_type_from_sql
unwrap_numeric_typ_mod	Returns the first two values provided as typ_mods as `u8`, which are appropriate values to associate with `ScalarType::Decimal`'s values, precision and scale.