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// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
//! DataFusion error types
#[cfg(feature = "backtrace")]
use std::backtrace::{Backtrace, BacktraceStatus};
use std::borrow::Cow;
use std::error::Error;
use std::fmt::{Display, Formatter};
use std::io;
use std::result;
use std::sync::Arc;
use crate::utils::quote_identifier;
use crate::{Column, DFSchema, TableReference};
#[cfg(feature = "avro")]
use apache_avro::Error as AvroError;
use arrow::error::ArrowError;
#[cfg(feature = "parquet")]
use parquet::errors::ParquetError;
use sqlparser::parser::ParserError;
/// Result type for operations that could result in an [DataFusionError]
pub type Result<T, E = DataFusionError> = result::Result<T, E>;
/// Result type for operations that could result in an [DataFusionError] and needs to be shared (wrapped into `Arc`).
pub type SharedResult<T> = result::Result<T, Arc<DataFusionError>>;
/// Error type for generic operations that could result in DataFusionError::External
pub type GenericError = Box<dyn Error + Send + Sync>;
/// DataFusion error
#[derive(Debug)]
pub enum DataFusionError {
/// Error returned by arrow.
///
/// 2nd argument is for optional backtrace
ArrowError(ArrowError, Option<String>),
/// Error when reading / writing Parquet data.
#[cfg(feature = "parquet")]
ParquetError(ParquetError),
/// Error when reading Avro data.
#[cfg(feature = "avro")]
AvroError(AvroError),
/// Error when reading / writing to / from an object_store (e.g. S3 or LocalFile)
#[cfg(feature = "object_store")]
ObjectStore(object_store::Error),
/// Error when an I/O operation fails
IoError(io::Error),
/// Error when SQL is syntactically incorrect.
///
/// 2nd argument is for optional backtrace
SQL(ParserError, Option<String>),
/// Error when a feature is not yet implemented.
///
/// These errors are sometimes returned for features that are still in
/// development and are not entirely complete. Often, these errors are
/// tracked in our issue tracker.
NotImplemented(String),
/// Error due to bugs in DataFusion
///
/// This error should not happen in normal usage of DataFusion. It results
/// from something that wasn't expected/anticipated by the implementation
/// and that is most likely a bug (the error message even encourages users
/// to open a bug report). A user should not be able to trigger internal
/// errors under normal circumstances by feeding in malformed queries, bad
/// data, etc.
///
/// Note that I/O errors (or any error that happens due to external systems)
/// do NOT fall under this category. See other variants such as
/// [`Self::IoError`] and [`Self::External`].
///
/// DataFusions has internal invariants that the compiler is not always able
/// to check. This error is raised when one of those invariants does not
/// hold for some reason.
Internal(String),
/// Error during planning of the query.
///
/// This error happens when the user provides a bad query or plan, for
/// example the user attempts to call a function that doesn't exist, or if
/// the types of a function call are not supported.
Plan(String),
/// Error for invalid or unsupported configuration options.
Configuration(String),
/// Error when there is a problem with the query related to schema.
///
/// This error can be returned in cases such as when schema inference is not
/// possible and when column names are not unique.
///
/// 2nd argument is for optional backtrace
/// Boxing the optional backtrace to prevent <https://rust-lang.github.io/rust-clippy/master/index.html#/result_large_err>
SchemaError(SchemaError, Box<Option<String>>),
/// Error during execution of the query.
///
/// This error is returned when an error happens during execution due to a
/// malformed input. For example, the user passed malformed arguments to a
/// SQL method, opened a CSV file that is broken, or tried to divide an
/// integer by zero.
Execution(String),
/// Error when resources (such as memory of scratch disk space) are exhausted.
///
/// This error is thrown when a consumer cannot acquire additional memory
/// or other resources needed to execute the query from the Memory Manager.
ResourcesExhausted(String),
/// Errors originating from outside DataFusion's core codebase.
///
/// For example, a custom S3Error from the crate datafusion-objectstore-s3
External(GenericError),
/// Error with additional context
Context(String, Box<DataFusionError>),
/// Errors from either mapping LogicalPlans to/from Substrait plans
/// or serializing/deserializing protobytes to Substrait plans
Substrait(String),
}
#[macro_export]
macro_rules! context {
($desc:expr, $err:expr) => {
$err.context(format!("{} at {}:{}", $desc, file!(), line!()))
};
}
/// Schema-related errors
#[derive(Debug)]
pub enum SchemaError {
/// Schema contains a (possibly) qualified and unqualified field with same unqualified name
AmbiguousReference { field: Column },
/// Schema contains duplicate qualified field name
DuplicateQualifiedField {
qualifier: Box<TableReference>,
name: String,
},
/// Schema contains duplicate unqualified field name
DuplicateUnqualifiedField { name: String },
/// No field with this name
FieldNotFound {
field: Box<Column>,
valid_fields: Vec<Column>,
},
}
impl Display for SchemaError {
fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
match self {
Self::FieldNotFound {
field,
valid_fields,
} => {
write!(f, "No field named {}", field.quoted_flat_name())?;
if !valid_fields.is_empty() {
write!(
f,
". Valid fields are {}",
valid_fields
.iter()
.map(|field| field.quoted_flat_name())
.collect::<Vec<String>>()
.join(", ")
)?;
}
write!(f, ".")
}
Self::DuplicateQualifiedField { qualifier, name } => {
write!(
f,
"Schema contains duplicate qualified field name {}.{}",
qualifier.to_quoted_string(),
quote_identifier(name)
)
}
Self::DuplicateUnqualifiedField { name } => {
write!(
f,
"Schema contains duplicate unqualified field name {}",
quote_identifier(name)
)
}
Self::AmbiguousReference { field } => {
if field.relation.is_some() {
write!(
f,
"Schema contains qualified field name {} and unqualified field name {} which would be ambiguous",
field.quoted_flat_name(),
quote_identifier(&field.name)
)
} else {
write!(
f,
"Ambiguous reference to unqualified field {}",
field.quoted_flat_name()
)
}
}
}
}
}
impl Error for SchemaError {}
impl From<std::fmt::Error> for DataFusionError {
fn from(_e: std::fmt::Error) -> Self {
DataFusionError::Execution("Fail to format".to_string())
}
}
impl From<io::Error> for DataFusionError {
fn from(e: io::Error) -> Self {
DataFusionError::IoError(e)
}
}
impl From<ArrowError> for DataFusionError {
fn from(e: ArrowError) -> Self {
DataFusionError::ArrowError(e, None)
}
}
impl From<DataFusionError> for ArrowError {
fn from(e: DataFusionError) -> Self {
match e {
DataFusionError::ArrowError(e, _) => e,
DataFusionError::External(e) => ArrowError::ExternalError(e),
other => ArrowError::ExternalError(Box::new(other)),
}
}
}
#[cfg(feature = "parquet")]
impl From<ParquetError> for DataFusionError {
fn from(e: ParquetError) -> Self {
DataFusionError::ParquetError(e)
}
}
#[cfg(feature = "avro")]
impl From<AvroError> for DataFusionError {
fn from(e: AvroError) -> Self {
DataFusionError::AvroError(e)
}
}
#[cfg(feature = "object_store")]
impl From<object_store::Error> for DataFusionError {
fn from(e: object_store::Error) -> Self {
DataFusionError::ObjectStore(e)
}
}
#[cfg(feature = "object_store")]
impl From<object_store::path::Error> for DataFusionError {
fn from(e: object_store::path::Error) -> Self {
DataFusionError::ObjectStore(e.into())
}
}
impl From<ParserError> for DataFusionError {
fn from(e: ParserError) -> Self {
DataFusionError::SQL(e, None)
}
}
impl From<GenericError> for DataFusionError {
fn from(err: GenericError) -> Self {
DataFusionError::External(err)
}
}
impl Display for DataFusionError {
fn fmt(&self, f: &mut Formatter) -> std::fmt::Result {
let error_prefix = self.error_prefix();
let message = self.message();
write!(f, "{error_prefix}{message}")
}
}
impl Error for DataFusionError {
fn source(&self) -> Option<&(dyn Error + 'static)> {
match self {
DataFusionError::ArrowError(e, _) => Some(e),
#[cfg(feature = "parquet")]
DataFusionError::ParquetError(e) => Some(e),
#[cfg(feature = "avro")]
DataFusionError::AvroError(e) => Some(e),
#[cfg(feature = "object_store")]
DataFusionError::ObjectStore(e) => Some(e),
DataFusionError::IoError(e) => Some(e),
DataFusionError::SQL(e, _) => Some(e),
DataFusionError::NotImplemented(_) => None,
DataFusionError::Internal(_) => None,
DataFusionError::Configuration(_) => None,
DataFusionError::Plan(_) => None,
DataFusionError::SchemaError(e, _) => Some(e),
DataFusionError::Execution(_) => None,
DataFusionError::ResourcesExhausted(_) => None,
DataFusionError::External(e) => Some(e.as_ref()),
DataFusionError::Context(_, e) => Some(e.as_ref()),
DataFusionError::Substrait(_) => None,
}
}
}
impl From<DataFusionError> for io::Error {
fn from(e: DataFusionError) -> Self {
io::Error::new(io::ErrorKind::Other, e)
}
}
impl DataFusionError {
/// The separator between the error message and the backtrace
pub const BACK_TRACE_SEP: &'static str = "\n\nbacktrace: ";
/// Get deepest underlying [`DataFusionError`]
///
/// [`DataFusionError`]s sometimes form a chain, such as `DataFusionError::ArrowError()` in order to conform
/// to the correct error signature. Thus sometimes there is a chain several layers deep that can obscure the
/// original error. This function finds the lowest level DataFusionError possible.
///
/// For example, `find_root` will return`DataFusionError::ResourceExhausted` given the input
/// ```text
/// DataFusionError::ArrowError
/// ArrowError::External
/// Box(DataFusionError::Context)
/// DataFusionError::ResourceExhausted
/// ```
///
/// This may be the same as `self`.
pub fn find_root(&self) -> &Self {
// Note: This is a non-recursive algorithm so we do not run
// out of stack space, even for long error chains.
let mut last_datafusion_error = self;
let mut root_error: &dyn Error = self;
while let Some(source) = root_error.source() {
// walk the next level
root_error = source;
// remember the lowest datafusion error so far
if let Some(e) = root_error.downcast_ref::<DataFusionError>() {
last_datafusion_error = e;
} else if let Some(e) = root_error.downcast_ref::<Arc<DataFusionError>>() {
// As `Arc<T>::source()` calls through to `T::source()` we need to
// explicitly match `Arc<DataFusionError>` to capture it
last_datafusion_error = e.as_ref();
}
}
// return last checkpoint (which may be the original error)
last_datafusion_error
}
/// wraps self in Self::Context with a description
pub fn context(self, description: impl Into<String>) -> Self {
Self::Context(description.into(), Box::new(self))
}
/// Strips backtrace out of the error message
/// If backtrace enabled then error has a format "message" [`Self::BACK_TRACE_SEP`] "backtrace"
/// The method strips the backtrace and outputs "message"
pub fn strip_backtrace(&self) -> String {
self.to_string()
.split(Self::BACK_TRACE_SEP)
.collect::<Vec<&str>>()
.first()
.unwrap_or(&"")
.to_string()
}
/// To enable optional rust backtrace in DataFusion:
/// - [`Setup Env Variables`]<https://doc.rust-lang.org/std/backtrace/index.html#environment-variables>
/// - Enable `backtrace` cargo feature
///
/// Example:
/// cargo build --features 'backtrace'
/// RUST_BACKTRACE=1 ./app
#[inline(always)]
pub fn get_back_trace() -> String {
#[cfg(feature = "backtrace")]
{
let back_trace = Backtrace::capture();
if back_trace.status() == BacktraceStatus::Captured {
return format!("{}{}", Self::BACK_TRACE_SEP, back_trace);
}
"".to_owned()
}
#[cfg(not(feature = "backtrace"))]
"".to_owned()
}
fn error_prefix(&self) -> &'static str {
match self {
DataFusionError::ArrowError(_, _) => "Arrow error: ",
#[cfg(feature = "parquet")]
DataFusionError::ParquetError(_) => "Parquet error: ",
#[cfg(feature = "avro")]
DataFusionError::AvroError(_) => "Avro error: ",
#[cfg(feature = "object_store")]
DataFusionError::ObjectStore(_) => "Object Store error: ",
DataFusionError::IoError(_) => "IO error: ",
DataFusionError::SQL(_, _) => "SQL error: ",
DataFusionError::NotImplemented(_) => "This feature is not implemented: ",
DataFusionError::Internal(_) => "Internal error: ",
DataFusionError::Plan(_) => "Error during planning: ",
DataFusionError::Configuration(_) => "Invalid or Unsupported Configuration: ",
DataFusionError::SchemaError(_, _) => "Schema error: ",
DataFusionError::Execution(_) => "Execution error: ",
DataFusionError::ResourcesExhausted(_) => "Resources exhausted: ",
DataFusionError::External(_) => "External error: ",
DataFusionError::Context(_, _) => "",
DataFusionError::Substrait(_) => "Substrait error: ",
}
}
pub fn message(&self) -> Cow<str> {
match *self {
DataFusionError::ArrowError(ref desc, ref backtrace) => {
let backtrace = backtrace.clone().unwrap_or("".to_owned());
Cow::Owned(format!("{desc}{backtrace}"))
}
#[cfg(feature = "parquet")]
DataFusionError::ParquetError(ref desc) => Cow::Owned(desc.to_string()),
#[cfg(feature = "avro")]
DataFusionError::AvroError(ref desc) => Cow::Owned(desc.to_string()),
DataFusionError::IoError(ref desc) => Cow::Owned(desc.to_string()),
DataFusionError::SQL(ref desc, ref backtrace) => {
let backtrace: String = backtrace.clone().unwrap_or("".to_owned());
Cow::Owned(format!("{desc:?}{backtrace}"))
}
DataFusionError::Configuration(ref desc) => Cow::Owned(desc.to_string()),
DataFusionError::NotImplemented(ref desc) => Cow::Owned(desc.to_string()),
DataFusionError::Internal(ref desc) => Cow::Owned(format!(
"{desc}.\nThis was likely caused by a bug in DataFusion's \
code and we would welcome that you file an bug report in our issue tracker"
)),
DataFusionError::Plan(ref desc) => Cow::Owned(desc.to_string()),
DataFusionError::SchemaError(ref desc, ref backtrace) => {
let backtrace: &str =
&backtrace.as_ref().clone().unwrap_or("".to_owned());
Cow::Owned(format!("{desc}{backtrace}"))
}
DataFusionError::Execution(ref desc) => Cow::Owned(desc.to_string()),
DataFusionError::ResourcesExhausted(ref desc) => Cow::Owned(desc.to_string()),
DataFusionError::External(ref desc) => Cow::Owned(desc.to_string()),
#[cfg(feature = "object_store")]
DataFusionError::ObjectStore(ref desc) => Cow::Owned(desc.to_string()),
DataFusionError::Context(ref desc, ref err) => {
Cow::Owned(format!("{desc}\ncaused by\n{}", *err))
}
DataFusionError::Substrait(ref desc) => Cow::Owned(desc.to_string()),
}
}
}
/// Unwrap an `Option` if possible. Otherwise return an `DataFusionError::Internal`.
/// In normal usage of DataFusion the unwrap should always succeed.
///
/// Example: `let values = unwrap_or_internal_err!(values)`
#[macro_export]
macro_rules! unwrap_or_internal_err {
($Value: ident) => {
$Value.ok_or_else(|| {
DataFusionError::Internal(format!(
"{} should not be None",
stringify!($Value)
))
})?
};
}
macro_rules! with_dollar_sign {
($($body:tt)*) => {
macro_rules! __with_dollar_sign { $($body)* }
__with_dollar_sign!($);
}
}
/// Add a macros for concise DataFusionError::* errors declaration
/// supports placeholders the same way as `format!`
/// Examples:
/// plan_err!("Error")
/// plan_err!("Error {}", val)
/// plan_err!("Error {:?}", val)
/// plan_err!("Error {val}")
/// plan_err!("Error {val:?}")
///
/// `NAME_ERR` - macro name for wrapping Err(DataFusionError::*)
/// `NAME_DF_ERR` - macro name for wrapping DataFusionError::*. Needed to keep backtrace opportunity
/// in construction where DataFusionError::* used directly, like `map_err`, `ok_or_else`, etc
macro_rules! make_error {
($NAME_ERR:ident, $NAME_DF_ERR: ident, $ERR:ident) => {
with_dollar_sign! {
($d:tt) => {
/// Macro wraps `$ERR` to add backtrace feature
#[macro_export]
macro_rules! $NAME_DF_ERR {
($d($d args:expr),*) => {
$crate::DataFusionError::$ERR(
format!(
"{}{}",
format!($d($d args),*),
$crate::DataFusionError::get_back_trace(),
).into()
)
}
}
/// Macro wraps Err(`$ERR`) to add backtrace feature
#[macro_export]
macro_rules! $NAME_ERR {
($d($d args:expr),*) => {
Err($crate::DataFusionError::$ERR(
format!(
"{}{}",
format!($d($d args),*),
$crate::DataFusionError::get_back_trace(),
).into()
))
}
}
}
}
};
}
// Exposes a macro to create `DataFusionError::Plan` with optional backtrace
make_error!(plan_err, plan_datafusion_err, Plan);
// Exposes a macro to create `DataFusionError::Internal` with optional backtrace
make_error!(internal_err, internal_datafusion_err, Internal);
// Exposes a macro to create `DataFusionError::NotImplemented` with optional backtrace
make_error!(not_impl_err, not_impl_datafusion_err, NotImplemented);
// Exposes a macro to create `DataFusionError::Execution` with optional backtrace
make_error!(exec_err, exec_datafusion_err, Execution);
// Exposes a macro to create `DataFusionError::Configuration` with optional backtrace
make_error!(config_err, config_datafusion_err, Configuration);
// Exposes a macro to create `DataFusionError::Substrait` with optional backtrace
make_error!(substrait_err, substrait_datafusion_err, Substrait);
// Exposes a macro to create `DataFusionError::ResourcesExhausted` with optional backtrace
make_error!(resources_err, resources_datafusion_err, ResourcesExhausted);
// Exposes a macro to create `DataFusionError::SQL` with optional backtrace
#[macro_export]
macro_rules! sql_datafusion_err {
($ERR:expr) => {
DataFusionError::SQL($ERR, Some(DataFusionError::get_back_trace()))
};
}
// Exposes a macro to create `Err(DataFusionError::SQL)` with optional backtrace
#[macro_export]
macro_rules! sql_err {
($ERR:expr) => {
Err(datafusion_common::sql_datafusion_err!($ERR))
};
}
// Exposes a macro to create `DataFusionError::ArrowError` with optional backtrace
#[macro_export]
macro_rules! arrow_datafusion_err {
($ERR:expr) => {
DataFusionError::ArrowError($ERR, Some(DataFusionError::get_back_trace()))
};
}
// Exposes a macro to create `Err(DataFusionError::ArrowError)` with optional backtrace
#[macro_export]
macro_rules! arrow_err {
($ERR:expr) => {
Err(datafusion_common::arrow_datafusion_err!($ERR))
};
}
// Exposes a macro to create `DataFusionError::SchemaError` with optional backtrace
#[macro_export]
macro_rules! schema_datafusion_err {
($ERR:expr) => {
DataFusionError::SchemaError(
$ERR,
Box::new(Some(DataFusionError::get_back_trace())),
)
};
}
// Exposes a macro to create `Err(DataFusionError::SchemaError)` with optional backtrace
#[macro_export]
macro_rules! schema_err {
($ERR:expr) => {
Err(DataFusionError::SchemaError(
$ERR,
Box::new(Some(DataFusionError::get_back_trace())),
))
};
}
// To avoid compiler error when using macro in the same crate:
// macros from the current crate cannot be referred to by absolute paths
pub use config_err as _config_err;
pub use internal_datafusion_err as _internal_datafusion_err;
pub use internal_err as _internal_err;
pub use not_impl_err as _not_impl_err;
pub use plan_datafusion_err as _plan_datafusion_err;
pub use plan_err as _plan_err;
pub use schema_err as _schema_err;
/// Create a "field not found" DataFusion::SchemaError
pub fn field_not_found<R: Into<TableReference>>(
qualifier: Option<R>,
name: &str,
schema: &DFSchema,
) -> DataFusionError {
schema_datafusion_err!(SchemaError::FieldNotFound {
field: Box::new(Column::new(qualifier, name)),
valid_fields: schema.columns().to_vec(),
})
}
/// Convenience wrapper over [`field_not_found`] for when there is no qualifier
pub fn unqualified_field_not_found(name: &str, schema: &DFSchema) -> DataFusionError {
schema_datafusion_err!(SchemaError::FieldNotFound {
field: Box::new(Column::new_unqualified(name)),
valid_fields: schema.columns().to_vec(),
})
}
#[cfg(test)]
mod test {
use std::sync::Arc;
use crate::error::DataFusionError;
use arrow::error::ArrowError;
#[test]
fn datafusion_error_to_arrow() {
let res = return_arrow_error().unwrap_err();
assert!(res
.to_string()
.starts_with("External error: Error during planning: foo"));
}
#[test]
fn arrow_error_to_datafusion() {
let res = return_datafusion_error().unwrap_err();
assert_eq!(res.strip_backtrace(), "Arrow error: Schema error: bar");
}
// To pass the test the environment variable RUST_BACKTRACE should be set to 1 to enforce backtrace
#[cfg(feature = "backtrace")]
#[test]
#[allow(clippy::unnecessary_literal_unwrap)]
fn test_enabled_backtrace() {
match std::env::var("RUST_BACKTRACE") {
Ok(val) if val == "1" => {}
_ => panic!("Environment variable RUST_BACKTRACE must be set to 1"),
};
let res: Result<(), DataFusionError> = plan_err!("Err");
let err = res.unwrap_err().to_string();
assert!(err.contains(DataFusionError::BACK_TRACE_SEP));
assert_eq!(
err.split(DataFusionError::BACK_TRACE_SEP)
.collect::<Vec<&str>>()
.first()
.unwrap(),
&"Error during planning: Err"
);
assert!(!err
.split(DataFusionError::BACK_TRACE_SEP)
.collect::<Vec<&str>>()
.get(1)
.unwrap()
.is_empty());
}
#[cfg(not(feature = "backtrace"))]
#[test]
#[allow(clippy::unnecessary_literal_unwrap)]
fn test_disabled_backtrace() {
let res: Result<(), DataFusionError> = plan_err!("Err");
let res = res.unwrap_err().to_string();
assert!(!res.contains(DataFusionError::BACK_TRACE_SEP));
assert_eq!(res, "Error during planning: Err");
}
#[test]
fn test_find_root_error() {
do_root_test(
DataFusionError::Context(
"it happened!".to_string(),
Box::new(DataFusionError::ResourcesExhausted("foo".to_string())),
),
DataFusionError::ResourcesExhausted("foo".to_string()),
);
do_root_test(
DataFusionError::ArrowError(
ArrowError::ExternalError(Box::new(DataFusionError::ResourcesExhausted(
"foo".to_string(),
))),
None,
),
DataFusionError::ResourcesExhausted("foo".to_string()),
);
do_root_test(
DataFusionError::External(Box::new(DataFusionError::ResourcesExhausted(
"foo".to_string(),
))),
DataFusionError::ResourcesExhausted("foo".to_string()),
);
do_root_test(
DataFusionError::External(Box::new(ArrowError::ExternalError(Box::new(
DataFusionError::ResourcesExhausted("foo".to_string()),
)))),
DataFusionError::ResourcesExhausted("foo".to_string()),
);
do_root_test(
DataFusionError::ArrowError(
ArrowError::ExternalError(Box::new(ArrowError::ExternalError(Box::new(
DataFusionError::ResourcesExhausted("foo".to_string()),
)))),
None,
),
DataFusionError::ResourcesExhausted("foo".to_string()),
);
do_root_test(
DataFusionError::External(Box::new(Arc::new(
DataFusionError::ResourcesExhausted("foo".to_string()),
))),
DataFusionError::ResourcesExhausted("foo".to_string()),
);
do_root_test(
DataFusionError::External(Box::new(Arc::new(ArrowError::ExternalError(
Box::new(DataFusionError::ResourcesExhausted("foo".to_string())),
)))),
DataFusionError::ResourcesExhausted("foo".to_string()),
);
}
#[test]
#[allow(clippy::unnecessary_literal_unwrap)]
fn test_make_error_parse_input() {
let res: Result<(), DataFusionError> = plan_err!("Err");
let res = res.unwrap_err();
assert_eq!(res.strip_backtrace(), "Error during planning: Err");
let extra1 = "extra1";
let extra2 = "extra2";
let res: Result<(), DataFusionError> = plan_err!("Err {} {}", extra1, extra2);
let res = res.unwrap_err();
assert_eq!(
res.strip_backtrace(),
"Error during planning: Err extra1 extra2"
);
let res: Result<(), DataFusionError> =
plan_err!("Err {:?} {:#?}", extra1, extra2);
let res = res.unwrap_err();
assert_eq!(
res.strip_backtrace(),
"Error during planning: Err \"extra1\" \"extra2\""
);
let res: Result<(), DataFusionError> = plan_err!("Err {extra1} {extra2}");
let res = res.unwrap_err();
assert_eq!(
res.strip_backtrace(),
"Error during planning: Err extra1 extra2"
);
let res: Result<(), DataFusionError> = plan_err!("Err {extra1:?} {extra2:#?}");
let res = res.unwrap_err();
assert_eq!(
res.strip_backtrace(),
"Error during planning: Err \"extra1\" \"extra2\""
);
}
/// Model what happens when implementing SendableRecordBatchStream:
/// DataFusion code needs to return an ArrowError
fn return_arrow_error() -> arrow::error::Result<()> {
// Expect the '?' to work
Err(DataFusionError::Plan("foo".to_string()).into())
}
/// Model what happens when using arrow kernels in DataFusion
/// code: need to turn an ArrowError into a DataFusionError
fn return_datafusion_error() -> crate::error::Result<()> {
// Expect the '?' to work
Err(ArrowError::SchemaError("bar".to_string()).into())
}
fn do_root_test(e: DataFusionError, exp: DataFusionError) {
let e = e.find_root();
// DataFusionError does not implement Eq, so we use a string comparison + some cheap "same variant" test instead
assert_eq!(e.strip_backtrace(), exp.strip_backtrace());
assert_eq!(std::mem::discriminant(e), std::mem::discriminant(&exp),)
}
}