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Support array literal with scalar function #8884

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merged 3 commits into from
Jan 18, 2024
Merged

Support array literal with scalar function #8884

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93ff212
fix struct
jayzhan211 Jan 16, 2024
c884be1
add test
jayzhan211 Jan 17, 2024
d257269
support functions
jayzhan211 Jan 17, 2024
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28 changes: 14 additions & 14 deletions datafusion/sql/src/expr/value.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -20,7 +20,7 @@ use arrow::compute::kernels::cast_utils::parse_interval_month_day_nano;
use arrow::datatypes::DECIMAL128_MAX_PRECISION;
use arrow_schema::DataType;
use datafusion_common::{
not_impl_err, plan_err, DFSchema, DataFusionError, Result, ScalarValue,
internal_err, not_impl_err, plan_err, DFSchema, DataFusionError, Result, ScalarValue,
};
use datafusion_expr::expr::ScalarFunction;
use datafusion_expr::expr::{BinaryExpr, Placeholder};
Expand Down Expand Up @@ -145,23 +145,23 @@ impl<'a, S: ContextProvider> SqlToRel<'a, S> {
)?;

match value {
Expr::Literal(_) => {
values.push(value);
}
Expr::ScalarFunction(ScalarFunction {
func_def: ScalarFunctionDefinition::BuiltIn(fun),
Expr::Literal(_)
// Array literal
| Expr::ScalarFunction(ScalarFunction {
func_def:
ScalarFunctionDefinition::BuiltIn(BuiltinScalarFunction::MakeArray),
..
})
// Struct literal
| Expr::ScalarFunction(ScalarFunction {
func_def:
ScalarFunctionDefinition::BuiltIn(BuiltinScalarFunction::Struct),
..
}) => {
if fun == BuiltinScalarFunction::MakeArray {
values.push(value);
} else {
return not_impl_err!(
"ScalarFunctions without MakeArray are not supported: {value}"
);
}
values.push(value);
}
_ => {
return not_impl_err!(
return internal_err!(
"Arrays with elements other than literal are not supported: {value}"
);
}
Expand Down
2 changes: 1 addition & 1 deletion datafusion/sqllogictest/test_files/array.slt
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Expand Up @@ -459,7 +459,7 @@ AS
query error
select [1, true, null]

query error DataFusion error: This feature is not implemented: ScalarFunctions without MakeArray are not supported: now()
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Can we add more to covert Struct?

query error
SELECT [now()]

query TTT
Expand Down