[FEAT MERGE] OB Support XMLType

Co-authored-by: simonjoylet <simonjoylet@gmail.com>
2023-04-28 03:45:10 +00:00
parent 58bb3d34b7
commit 17abf2818a
405 changed files with 18839 additions and 1573 deletions
--- a/src/sql/engine/expr/ob_expr_xml_serialize.cpp
+++ b/src/sql/engine/expr/ob_expr_xml_serialize.cpp
@ -0,0 +1,122 @@
+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase CE is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ * This file is for func xmlserialize.
+ */
+
+#define USING_LOG_PREFIX SQL_ENG
+#include "ob_expr_xml_serialize.h"
+#include "ob_expr_xml_func_helper.h"
+#include "sql/session/ob_sql_session_info.h"
+#include "sql/engine/ob_exec_context.h"
+
+using namespace oceanbase::common;
+using namespace oceanbase::sql;
+
+namespace oceanbase
+{
+namespace sql
+{
+ObExprXmlSerialize::ObExprXmlSerialize(ObIAllocator &alloc)
+    : ObFuncExprOperator(alloc, T_FUN_SYS_XML_SERIALIZE, N_XMLSERIALIZE, MORE_THAN_TWO, VALID_FOR_GENERATED_COL, NOT_ROW_DIMENSION)
+{
+}
+
+ObExprXmlSerialize::~ObExprXmlSerialize()
+{
+}
+
+int ObExprXmlSerialize::calc_result_typeN(ObExprResType& type,
+                                      ObExprResType* types,
+                                      int64_t param_num,
+                                      ObExprTypeCtx& type_ctx) const
+{
+  int ret = OB_SUCCESS;
+  ObExprResType dst_type;
+  if (OB_UNLIKELY(param_num != 10)) {
+    ret = OB_ERR_PARAM_SIZE;
+    LOG_WARN("invalid param number", K(ret), K(param_num));
+  } else {
+    if (!ob_is_integer_type(types[0].get_type())) {
+      ret = OB_ERR_UNEXPECTED;
+      LOG_WARN("invalid xml doc type", K(ret), K(types[0].get_type()));
+    } else if (types[1].is_ext() && types[1].get_udt_id() == T_OBJ_XML) {
+      types[1].get_calc_meta().set_sql_udt(ObXMLSqlType);
+    }
+    if (OB_SUCC(ret) && OB_FAIL(get_dest_type(types[2], dst_type))) {
+      LOG_WARN("fail to get return datatype", K(ret), K(dst_type));
+    }
+    // opt encoding and version
+    for (int32_t i = 3; i < 7 && OB_SUCC(ret); i += 2) {
+      if (!ob_is_integer_type(types[i].get_type())) {
+        ret = OB_ERR_UNEXPECTED;
+        LOG_WARN("invalid opt type", K(ob_obj_type_str(types[i].get_type())), K(ret));
+      } else if (!ob_is_string_type(types[i+1].get_type())) {
+        types[i+1].set_calc_type(ObVarcharType);
+        types[i+1].set_calc_collation_type(ObCharset::get_system_collation());
+      }
+    }
+
+    // set return type
+    if (OB_SUCC(ret)) {
+      type.set_type(dst_type.get_type());
+      if (dst_type.get_collation_type() == CS_TYPE_INVALID) {
+        type.set_collation_type(CS_TYPE_UTF8MB4_BIN);
+      } else {
+        type.set_collation_type(dst_type.get_collation_type());
+      }
+      type.set_full_length(dst_type.get_length(), dst_type.get_length_semantics());
+    }
+  }
+  return ret;
+}
+
+int ObExprXmlSerialize::get_dest_type(const ObExprResType as_type, ObExprResType &dst_type) const
+{
+  int ret = OB_SUCCESS;
+  if (!as_type.is_int() && !as_type.get_param().is_int()) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("cast param type is unexpected", K(as_type));
+  } else {
+    const ObObj &param = as_type.get_param();
+    ParseNode parse_node;
+    parse_node.value_ = param.get_int();
+    ObObjType obj_type = static_cast<ObObjType>(parse_node.int16_values_[OB_NODE_CAST_TYPE_IDX]);
+    ObCollationType cs_type = static_cast<ObCollationType>(parse_node.int16_values_[OB_NODE_CAST_COLL_IDX]);
+    dst_type.set_type(obj_type);
+    dst_type.set_collation_type(cs_type);
+    if (ob_is_varchar_type(dst_type.get_type(), dst_type.get_collation_type())) {
+      dst_type.set_full_length(parse_node.int32_values_[1], as_type.get_accuracy().get_length_semantics());
+    } else if (ob_is_clob(dst_type.get_type(), dst_type.get_collation_type()) ||
+               ob_is_blob(dst_type.get_type(), dst_type.get_collation_type())) {
+      int64_t text_length = parse_node.int32_values_[1];
+      dst_type.set_length(text_length < 0 ? ObAccuracy::DDL_DEFAULT_ACCURACY[obj_type].get_length() : text_length);
+    } else {
+      ret = OB_ERR_INVALID_DATATYPE;
+      LOG_WARN("invalid datatype", K(ret), K(dst_type.get_type()), K(dst_type.get_collation_type()));
+    }
+  }
+  return ret;
+}
+
+
+
+int ObExprXmlSerialize::cg_expr(ObExprCGCtx &expr_cg_ctx,
+                                const ObRawExpr &raw_expr,
+                                ObExpr &rt_expr) const
+{
+  UNUSED(expr_cg_ctx);
+  UNUSED(raw_expr);
+  rt_expr.eval_func_ = eval_xml_serialize;
+  return OB_SUCCESS;
+}
+
+}
+}