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Fix parse error on some prepared statement placeholders (#604)

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sqlparser can now parse all the prepared statement placeholders supported by SQLite:

 - ?
 - ?NNN
 - @VVV
 - :VVV
 - $VVV

See: https://www.sqlite.org/lang_expr.html#varparam

This does not break existing support for postgresql's '@' operator

Fixes #603
This commit is contained in:
Ophir LOJKINE 2022-09-27 15:58:26 +02:00 • committed by GitHub
parent 3ac1bb5b80
commit 604f755a59
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4 changed files with 45 additions and 12 deletions
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12
tests/sqlparser_common.rs
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@ -22,6 +22,7 @@
mod test_utils;
use matches::assert_matches;
use sqlparser::ast::SelectItem::UnnamedExpr;
use sqlparser::ast::*;
use sqlparser::dialect::{
AnsiDialect, BigQueryDialect, ClickHouseDialect, GenericDialect, HiveDialect, MsSqlDialect,
@ -5299,6 +5300,17 @@ fn test_placeholder() {
rows: OffsetRows::None,
}),
);
let sql = "SELECT $fromage_français, :x, ?123";
let ast = dialects.verified_only_select(sql);
assert_eq!(
ast.projection,
vec![
UnnamedExpr(Expr::Value(Value::Placeholder("$fromage_français".into()))),
UnnamedExpr(Expr::Value(Value::Placeholder(":x".into()))),
UnnamedExpr(Expr::Value(Value::Placeholder("?123".into()))),
]
);
}
#[test]