Oracle: 解决子查询也带分页导致报错，感谢 ostrichManX 的贡献 #684

https://github.com/Tencent/APIJSON/pull/684

APIJSONORM/src/main/java/apijson/orm/AbstractSQLConfig.java

@@ -4587,6 +4587,9 @@ public abstract class AbstractSQLConfig<T extends Object> implements SQLConfig<T
 	 */
 	protected String getOraclePageSql(String sql) {
 		int count = getCount();
+		if (count <= 0 || RequestMethod.isHeadMethod(getMethod(), true)) { // TODO HEAD 真的不需要 LIMIT ？
+			return sql;
+		}
 		int offset = getOffset(getPage(), count);
 		String alias = getAliasWithQuote();