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feat: add arg placeholder (#420)

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Co-authored-by: gamife <gamife9886@gmail.com>
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gamife 2022-02-17 20:55:21 +08:00 • committed by GitHub
parent 1da49c15c7
commit 899f91b1f6
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4 changed files with 60 additions and 1 deletions
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3
src/ast/value.rs
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@ -59,6 +59,8 @@ pub enum Value {
},
/// `NULL` value
Null,
/// `?` or `$` Prepared statement arg placeholder
Placeholder(String),
}
impl fmt::Display for Value {
@ -111,6 +113,7 @@ impl fmt::Display for Value {
Ok(())
}
Value::Null => write!(f, "NULL"),
Value::Placeholder(v) => write!(f, "{}", v),
}
}
}