private SQLAlterTableItem parseAlterTableRename() {
acceptIdentifier("RENAME");
if (lexer.token() == Token.COLUMN) {
lexer.nextToken();
SQLAlterTableRenameColumn renameColumn = new SQLAlterTableRenameColumn();
renameColumn.setColumn(this.exprParser.name());
accept(Token.TO);
renameColumn.setTo(this.exprParser.name());
return renameColumn;
}
if (lexer.token() == Token.TO) {
lexer.nextToken();