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Support $$ as placeholder name in SQLite dialect #1

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Support $$ as placeholder name in SQLite dialect #1

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c92f2fa
Support $$ as placeholder name in SQLite dialect
hansott Dec 26, 2024
d2d9c40
Don't support quoted strings for SQLite
hansott Dec 26, 2024
296d3d4
Merge branch 'update' of github.com:AikidoSec/datafusion-sqlparser-rs…
hansott Dec 26, 2024
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8 changes: 7 additions & 1 deletion src/tokenizer.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -43,7 +43,7 @@ use sqlparser_derive::{Visit, VisitMut};
use crate::ast::DollarQuotedString;
use crate::dialect::Dialect;
use crate::dialect::{
BigQueryDialect, DuckDbDialect, GenericDialect, MySqlDialect, PostgreSqlDialect,
BigQueryDialect, DuckDbDialect, GenericDialect, MySqlDialect, PostgreSqlDialect, SQLiteDialect,
SnowflakeDialect,
};
use crate::keywords::{Keyword, ALL_KEYWORDS, ALL_KEYWORDS_INDEX};
Expand Down Expand Up @@ -1281,6 +1281,12 @@ impl<'a> Tokenizer<'a> {
if let Some('$') = chars.peek() {
chars.next();

// Treat `$$` as a placeholder for SQLite
// See https://www.sqlite.org/lang_expr.html#varparam
if self.dialect.is::<SQLiteDialect>() {
return Ok(Token::Placeholder("$$".to_string()));
}

let mut is_terminated = false;
let mut prev: Option<char> = None;

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9 changes: 9 additions & 0 deletions tests/sqlparser_sqlite.rs
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Expand Up @@ -568,6 +568,15 @@ fn test_dollar_identifier_as_placeholder() {
}
_ => unreachable!(),
}

match sqlite().verified_expr("id = $$") {
Expr::BinaryOp { op, left, right } => {
assert_eq!(op, BinaryOperator::Eq);
assert_eq!(left, Box::new(Expr::Identifier(Ident::new("id"))));
assert_eq!(right, Box::new(Expr::Value(Placeholder("$$".to_string()))));
}
_ => unreachable!(),
}
}

fn sqlite() -> TestedDialects {
Expand Down