chore(cubestore): Upgrade DF: Parse SQL in Cubestore with string literal backslash escapes

Author: srh

rust/cubestore/cubestore/src/sql/mod.rs

@@ -511,6 +511,8 @@ pub fn fully_qualified_or_lower(ident: &Ident) -> String {
 pub struct MySqlDialectWithBackTicks {}
 
 impl Dialect for MySqlDialectWithBackTicks {
+    // TODO upgrade DF: There are unimplemented functions as of sqlparser 0.50.0.
+
     fn is_delimited_identifier_start(&self, ch: char) -> bool {
         ch == '"' || ch == '`'
     }
@@ -529,6 +531,11 @@ impl Dialect for MySqlDialectWithBackTicks {
     fn is_identifier_part(&self, ch: char) -> bool {
         self.is_identifier_start(ch) || (ch >= '0' && ch <= '9')
     }
+
+    // Behavior we previously had hard-coded into sqlparser
+    fn supports_string_literal_backslash_escape(&self) -> bool {
+        true
+    }
 }
 
 #[async_trait]

rust/cubestore/cubestore/src/sql/parser.rs

@@ -27,6 +27,11 @@ impl Dialect for MySqlDialectWithBackTicks {
     fn is_identifier_part(&self, ch: char) -> bool {
         self.is_identifier_start(ch) || (ch >= '0' && ch <= '9')
     }
+
+    // Behavior we previously had hard-coded into sqlparser
+    fn supports_string_literal_backslash_escape(&self) -> bool {
+        true
+    }
 }
 
 #[derive(Debug, Clone, PartialEq)]