jayzhan211 commented on code in PR #12864:
URL: https://github.com/apache/datafusion/pull/12864#discussion_r1812157465
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datafusion/expr/src/logical_plan/builder.rs:
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@@ -196,16 +224,58 @@ impl LogicalPlanBuilder {
}
}
- let empty_schema = DFSchema::empty();
+ // Check the type of value against the schema
+ if let Some(schema) = schema {
+ Self::infer_values_from_schema(values, schema)
+ } else {
+ // Infer from data itself
+ Self::infer_data(values)
+ }
+ }
+
+ fn infer_values_from_schema(
+ values: Vec<Vec<Expr>>,
+ schema: &DFSchema,
+ ) -> Result<Self> {
+ let n_cols = values[0].len();
+ let mut field_types: Vec<DataType> = Vec::with_capacity(n_cols);
+ for j in 0..n_cols {
+ let field_type = schema.field(j).data_type();
+ for row in values.iter() {
+ let value = &row[j];
+ let data_type = value.get_type(schema)?;
+
+ if !data_type.equals_datatype(field_type) {
Review Comment:
I fix the regression
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