Module scalar_subquery_to_join 

ScalarSubqueryToJoin rewriting scalar subquery filters to JOINs

Structs

ExtractScalarSubQuery 🔒

ScalarSubqueryToJoin

Optimizer rule for rewriting subquery filters to joins and places additional projection on top of the filter, to preserve original schema.

Functions

build_join 🔒

Takes a query like:

contains_scalar_subquery 🔒

Returns true if the expression has a scalar subquery somewhere in it false otherwise