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fix: positional params #473

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fix: positional params #473

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psteinroe
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@psteinroe psteinroe commented Aug 12, 2025

pre-processes the query string to replace named params like @name with positional params like $1, because only the latter is supported by the postgres parser.

not super happy with the way it is used for the type checker but also did not want to put that function in another crate.

also removed a println! statement leftover from a previous pr of me.

also fixed a bug in the lexer that tokenized a cast as a named parameter.

fixes #405, #454

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@juleswritescode juleswritescode left a comment

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just wondering about parameter reusage?

";
test_db.execute(setup_sql).await.expect("setup sql failed");

let content = r#"select * from users where id = @one and name = :two and email = :'three';"#;
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:'three' – i want to meet the person who writes syntax like this haha

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haha yeah I did for some time two years ago :D

#[cfg(test)]
mod tests {
use super::*;

#[test]
fn test_convert_to_positional_params() {
let input = "select * from users where id = @one and name = :two and email = :'three';";
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what about duplicate identifier names?:

select * from users 
where first_name = @one 
and starts_with(email, @one) 
and created_at > @two;

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good catch! fixed it

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Disable pg: Invalid statement: syntax error at or near ":" [syntax] rule
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