wugeer commented on code in PR #1472:
URL:
https://github.com/apache/datafusion-sqlparser-rs/pull/1472#discussion_r1825464111
##########
src/parser/mod.rs:
##########
@@ -2799,12 +2806,33 @@ impl<'a> Parser<'a> {
data_type: self.parse_data_type()?,
format: None,
})
- } else if Token::ExclamationMark == tok {
- // PostgreSQL factorial operation
+ } else if Token::ExclamationMark == tok &&
self.dialect.supports_factorial_operator() {
Ok(Expr::UnaryOp {
op: UnaryOperator::PGPostfixFactorial,
expr: Box::new(expr),
})
+ } else if Token::ExclamationMark == tok &&
self.dialect.supports_bang_not_operator() {
+ let token = self.next_token();
+ match token.token {
+ Token::Word(_) | Token::Number(..)
+ if !matches!(
+ expr,
+ Expr::Value(_)
+ | Expr::Identifier(_)
+ | Expr::Nested(_)
+ | Expr::BinaryOp { .. }
+ ) =>
+ {
+ Ok(Expr::UnaryOp {
+ op: UnaryOperator::BangNot,
+ expr: Box::new(expr),
+ })
+ }
+ _ => parser_err!(
+ "current dialect support bang not operator, but with wrong
syntax",
+ tok.location
+ ),
Review Comment:
@iffyio Let’s remove this complex context validation logic in this part
for now to keep the original logic simple. I've pushed the updated code. Thank
you for review! :)
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