Struct TableAliasRewriter 

pub struct TableAliasRewriter<'a> {
    pub table_schema: &'a Schema,
    pub alias_name: TableReference,
}

A TreeNodeRewriter implementation that rewrites Expr::Column expressions by replacing the column’s name with an alias if the column exists in the provided schema.

This is typically used to apply table aliases in query plans, ensuring that the column references in the expressions use the correct table alias.

Fields

• table_schema: The schema (SchemaRef) representing the table structure from which the columns are referenced. This is used to look up columns by their names.
• alias_name: The alias (TableReference) that will replace the table name in the column references when applicable.

Fields

table_schema: &'a Schema

alias_name: TableReference

Trait Implementations

impl TreeNodeRewriterWithPayload for TableAliasRewriter<'_>

type Node = Expr

type Payload<'a> = &'a HashSet<String>

fn f_down( &mut self, expr: Expr, lambdas_params: &HashSet<String>, ) -> Result<Transformed<Expr>>

Invoked while traversing down the tree before any children are rewritten. Default implementation returns the node as is and continues recursion.

fn f_up<'a>( &mut self, node: Self::Node, _payload: Self::Payload<'a>, ) -> Result<Transformed<Self::Node>, DataFusionError>

Invoked while traversing up the tree after all children have been rewritten. Default implementation returns the node as is and continues recursion.