oak-core/src/main/java/org/apache/jackrabbit/oak/query/SQL2Parser.java [1179:1210]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
            case '_':
                type = CHAR_NAME;
                break;
            default:
                if (c >= 'a' && c <= 'z') {
                    type = CHAR_NAME;
                } else if (c >= 'A' && c <= 'Z') {
                    type = CHAR_NAME;
                } else if (c >= '0' && c <= '9') {
                    type = CHAR_VALUE;
                } else {
                    if (Character.isJavaIdentifierPart(c)) {
                        type = CHAR_NAME;
                    }
                }
            }
            types[i] = (byte) type;
        }
        statementChars = command;
        types[len] = CHAR_END;
        characterTypes = types;
        parseIndex = 0;
    }

    private void checkRunOver(int i, int len, int startLoop) throws ParseException {
        if (i >= len) {
            parseIndex = startLoop;
            throw getSyntaxError();
        }
    }

    private void read() throws ParseException {
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -



oak-core/src/main/java/org/apache/jackrabbit/oak/query/xpath/XPathToSQL2Converter.java [995:1026]:
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
            case '_':
                type = CHAR_NAME;
                break;
            default:
                if (c >= 'a' && c <= 'z') {
                    type = CHAR_NAME;
                } else if (c >= 'A' && c <= 'Z') {
                    type = CHAR_NAME;
                } else if (c >= '0' && c <= '9') {
                    type = CHAR_VALUE;
                } else {
                    if (Character.isJavaIdentifierPart(c)) {
                        type = CHAR_NAME;
                    }
                }
            }
            types[i] = (byte) type;
        }
        statementChars = command;
        types[len] = CHAR_END;
        characterTypes = types;
        parseIndex = 0;
    }

    private void checkRunOver(int i, int len, int startLoop) throws ParseException {
        if (i >= len) {
            parseIndex = startLoop;
            throw getSyntaxError();
        }
    }

    private void read() throws ParseException {
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -