Module planner

SqlToRel: SQL Query Planner (produces LogicalPlan from SQL AST)

Structs

IdentNormalizer

Ident Normalizer

ParserOptions

SQL parser options

PlannerContext

Struct to store the states used by the Planner. The Planner will leverage the states to resolve CTEs, Views, subqueries and PREPARE statements. The states include Common Table Expression (CTE) provided with WITH clause and Parameter Data Types provided with PREPARE statement and the query schema of the outer query plan.

SqlToRel

SQL query planner

Traits

ContextProvider

Provides the SQL query planner meta-data about tables and functions referenced in SQL statements, without a direct dependency on other DataFusion structures

Functions

object_name_to_qualifier

Construct a WHERE qualifier suitable for e.g. information_schema filtering from the provided object identifiers (catalog, schema and table names).

object_name_to_table_reference

Create a TableReference after normalizing the specified ObjectName