milenkovicm commented on code in PR #9333:
URL: https://github.com/apache/arrow-datafusion/pull/9333#discussion_r1509953513
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datafusion/expr/src/logical_plan/ddl.rs:
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@@ -303,3 +321,66 @@ pub struct DropCatalogSchema {
/// Dummy schema
pub schema: DFSchemaRef,
}
+
+#[derive(Clone, PartialEq, Eq, Hash, Debug)]
+pub struct CreateFunction {
+ // TODO: There is open question should we expose sqlparser types or
redefine them here?
+ // At the moment it make more sense to expose sqlparser types and
leave
+ // user to convert them as needed
+ pub or_replace: bool,
+ pub temporary: bool,
+ pub name: String,
+ pub args: Option<Vec<OperateFunctionArg>>,
+ pub return_type: Option<DataType>,
+ // TODO: move this to new struct here
+ pub params: CreateFunctionBody,
+ //pub body: String,
+ /// Dummy schema
+ pub schema: DFSchemaRef,
+}
+#[derive(Clone, PartialEq, Eq, Hash, Debug)]
+pub struct OperateFunctionArg {
+ // it is not really supported so no need to have it here
+ // currently
+ // pub mode: Option<ArgMode>,
+ pub name: Option<Ident>,
+ pub data_type: DataType,
+ pub default_expr: Option<Expr>,
+}
+#[derive(Clone, PartialEq, Eq, Hash, Debug)]
+pub struct CreateFunctionBody {
+ /// LANGUAGE lang_name
+ pub language: Option<Ident>,
+ /// IMMUTABLE | STABLE | VOLATILE
+ pub behavior: Option<Volatility>,
+ /// AS 'definition'
+ pub as_: Option<DefinitionStatement>,
+ /// RETURN expression
+ pub return_: Option<Expr>,
+}
+
+#[derive(Clone, PartialEq, Eq, Hash, Debug)]
+pub enum DefinitionStatement {
+ SingleQuotedDef(String),
+ DoubleDollarDef(String),
+}
+
+impl From<sqlparser::ast::FunctionDefinition> for DefinitionStatement {
+ fn from(value: sqlparser::ast::FunctionDefinition) -> Self {
+ match value {
+ sqlparser::ast::FunctionDefinition::SingleQuotedDef(s) => {
+ Self::SingleQuotedDef(s)
+ }
+ sqlparser::ast::FunctionDefinition::DoubleDollarDef(s) => {
+ Self::DoubleDollarDef(s)
+ }
+ }
+ }
+}
+
+#[derive(Clone, PartialEq, Eq, Hash, Debug)]
+pub struct DropFunction {
+ pub name: String,
+ pub if_exists: bool,
+ pub schema: DFSchemaRef,
Review Comment:
Has to be `pub`. Other `structs` from that package have same property
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