Module mz_sql::plan

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Expand description

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

AlterIndexResetOptionsPlan

AlterIndexSetOptionsPlan

AlterItemRenamePlan

Generated by ALTER ... IF EXISTS if the named object did not exist.

AlterSecretPlan

ComputeInstanceIntrospectionConfig

Configuration of introspection for a compute instance.

CreateComputeInstancePlan

CreateComputeInstanceReplicaPlan

CreateConnectionPlan

CreateDatabasePlan

CreateIndexPlan

CreateSchemaPlan

CreateSecretPlan

CreateSourcePlan

CreateTablePlan

CreateViewsPlan

DropComputeInstanceReplicaPlan

DropComputeInstancesPlan

DropDatabasePlan

An Explanation facilitates pretty-printing of a HirRelationExpr.

OptimizerConfig

Feature flags for the HirRelationExpr::optimize_and_lower() logic.

A vector of values to which parameter references should be bound.

Controls planning of a SQL query.

The state required when planning a Query.

ReadThenWritePlan

ResetVariablePlan

SetVariablePlan

ShowVariablePlan

StartTransactionPlan

StatementContext

Immutable state that applies to the planning of an entire Statement.

Describes the output of a SQL statement.

Enums

HirRelationExpr

Just like MirRelationExpr, except where otherwise noted below.

Just like mz_expr::MirScalarExpr, except where otherwise noted below.

Instructions for executing a SQL query.

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.

Specifies when a Peek or Tail should occur.

Functions

Creates a description of the purified statement stmt.

Produces a Plan from the purified statement stmt.