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Return proper error message for ill formed variable reference #3162

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merged 1 commit into from Aug 16, 2022
Merged

Return proper error message for ill formed variable reference #3162

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18 changes: 17 additions & 1 deletion datafusion/core/src/execution/context.rs
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Expand Up @@ -1561,7 +1561,8 @@ impl ContextProvider for SessionState {
return None;
}

let provider_type = if &variable_names[0][0..2] == "@@" {
let first_variable = &variable_names[0];
let provider_type = if first_variable.len() > 1 && &first_variable[0..2] == "@@" {
VarType::System
} else {
VarType::UserDefined
Expand Down Expand Up @@ -1857,6 +1858,21 @@ mod tests {
Ok(())
}

#[tokio::test]
async fn create_variable_err() -> Result<()> {
let ctx = SessionContext::new();

let err = plan_and_collect(&ctx, "SElECT @= X#=?!~ 5")
.await
.unwrap_err();

assert_eq!(
err.to_string(),
"Execution error: variable [\"@\"] has no type information"
);
Ok(())
}

#[tokio::test]
async fn register_deregister() -> Result<()> {
let tmp_dir = TempDir::new()?;
Expand Down