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fold_unknown_literal

uqa_sql::expr::enums

Function fold_unknown_literal 

Source 
pub fn fold_unknown_literal(
    catalog: Option<&dyn EnumLabelCatalog>,
    value: &Value,
    target: &ColumnType,
) -> Result<Option<Value>>
Expand description

Convert an unknown literal to an enum or enum-array type with the type’s input function, as PostgreSQL does when it coerces an untyped constant during parse analysis. Returns None for any other target.