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Annotate Expr::get_type() with recursive #13376

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Nov 13, 2024
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Annotate Expr::get_type() with recursive #13376

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2 changes: 2 additions & 0 deletions datafusion/expr/src/expr_schema.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,7 @@ use datafusion_common::{
TableReference,
};
use datafusion_functions_window_common::field::WindowUDFFieldArgs;
use recursive::recursive;
use std::collections::HashMap;
use std::sync::Arc;

Expand Down Expand Up @@ -99,6 +100,7 @@ impl ExprSchemable for Expr {
/// expression refers to a column that does not exist in the
/// schema, or when the expression is incorrectly typed
/// (e.g. `[utf8] + [bool]`).
#[recursive]
fn get_type(&self, schema: &dyn ExprSchema) -> Result<DataType> {
match self {
Expr::Alias(Alias { expr, name, .. }) => match &**expr {
Expand Down