Fix parsing of negative values

Author: Agaev Huseyn

src/parser/mod.rs

@@ -7274,6 +7274,16 @@ impl<'a> Parser<'a> {
                 let placeholder = tok.to_string() + &ident.value;
                 Ok(Value::Placeholder(placeholder))
             }
+            tok @ Token::Minus => {
+                let next_token = self.next_token();
+                match next_token.token {
+                    Token::Number(n, l) => Ok(Value::Number(
+                        Self::parse::<String>(tok.to_string() + &n, location)?,
+                        l,
+                    )),
+                    _ => self.expected("number", next_token),
+                }
+            }
             unexpected => self.expected(
                 "a value",
                 TokenWithLocation {

tests/sqlparser_postgres.rs

@@ -277,6 +277,16 @@ fn parse_create_sequence() {
         "CREATE TEMPORARY SEQUENCE IF NOT EXISTS name3 INCREMENT 1 NO MINVALUE MAXVALUE 20 OWNED BY NONE",
     );
 
+    let sql7 = "CREATE SEQUENCE name4
+    AS BIGINT
+    INCREMENT   -10
+    MINVALUE - 2000  MAXVALUE -5
+    START WITH -   20";
+    pg().one_statement_parses_to(
+        sql7,
+        "CREATE SEQUENCE name4 AS BIGINT INCREMENT -10 MINVALUE -2000 MAXVALUE -5 START WITH -20",
+    );
+
     assert!(matches!(
         pg().parse_sql_statements("CREATE SEQUENCE foo INCREMENT 1 NO MINVALUE NO"),
         Err(ParserError::ParserError(_))