Function value_to_string

datafusion/sql/src/utils.rs:327–352

(value: &Value)

}

pub(crate) fn value_to_string(value: &Value) -> Option<String> {
    match value {
        Value::SingleQuotedString(s) => Some(s.to_string()),
        Value::DollarQuotedString(s) => Some(s.to_string()),
        Value::Number(_, _) | Value::Boolean(_) => Some(value.to_string()),
        Value::UnicodeStringLiteral(s) => Some(s.to_string()),
        Value::EscapedStringLiteral(s) => Some(s.to_string()),
        Value::QuoteDelimitedStringLiteral(s)
        | Value::NationalQuoteDelimitedStringLiteral(s) => Some(s.value.to_string()),
        Value::DoubleQuotedString(_)
        | Value::NationalStringLiteral(_)
        | Value::SingleQuotedByteStringLiteral(_)
        | Value::DoubleQuotedByteStringLiteral(_)
        | Value::TripleSingleQuotedString(_)
        | Value::TripleDoubleQuotedString(_)
        | Value::TripleSingleQuotedByteStringLiteral(_)
        | Value::TripleDoubleQuotedByteStringLiteral(_)
        | Value::SingleQuotedRawStringLiteral(_)
        | Value::DoubleQuotedRawStringLiteral(_)
        | Value::TripleSingleQuotedRawStringLiteral(_)
        | Value::TripleDoubleQuotedRawStringLiteral(_)
        | Value::HexStringLiteral(_)
        | Value::Null
        | Value::Placeholder(_) => None,
    }
}

pub(crate) fn rewrite_recursive_unnests_bottom_up(
    input: &LogicalPlan,