core/src/main/java/com/orientechnologies/orient/core/sql/parser/OIdentifier.java
public String getStringValue() {
    if (value == null) {
      return null;
    }
    if (value.contains("`")) {
      return value.replaceAll("\\\\`", "`");
    }
    return value;
  }
public String getStringValue() {
    if (value == null) {
      return null;
    }
    if (value.contains("`")) {
      return value.replaceAll("\\\\`", "`");
    }
    return value;
  }
returns the plain string representation of this identifier, with quoting removed from back-ticks

@return