[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_extract_value.cpp
+++ b/src/sql/engine/expr/ob_expr_extract_value.cpp
@ -0,0 +1,88 @@
+/**
+ * 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 extractval.
+ */
+
+#include "ob_expr_extract_value.h"
+#include "ob_expr_lob_utils.h"
+#include "lib/utility/utility.h"
+#include "ob_expr_xml_func_helper.h"
+#include "sql/session/ob_sql_session_info.h"
+#include "sql/engine/ob_exec_context.h"
+
+#define USING_LOG_PREFIX SQL_ENG
+
+
+using namespace oceanbase::common;
+
+namespace oceanbase
+{
+namespace sql
+{
+
+ObExprExtractValue::ObExprExtractValue(common::ObIAllocator &alloc)
+  : ObFuncExprOperator(alloc, T_FUN_SYS_XML_EXTRACTVALUE, N_EXTRACTVALUE, MORE_THAN_ONE, VALID_FOR_GENERATED_COL, NOT_ROW_DIMENSION)
+{
+}
+
+ObExprExtractValue::~ObExprExtractValue() {}
+
+int ObExprExtractValue::calc_result_typeN(ObExprResType &type,
+                                          ObExprResType *types,
+                                          int64_t param_num,
+                                          common::ObExprTypeCtx &type_ctx) const
+{
+  int ret = OB_SUCCESS;
+  if (OB_UNLIKELY(param_num != 2 && param_num != 3)) {
+    ret = OB_ERR_PARAM_SIZE;
+    LOG_WARN("invalid argument number", K(ret), K(param_num));
+  } else {
+    ObObjType in_type = types[0].get_type();
+    if (types[0].is_ext() && types[0].get_udt_id() == T_OBJ_XML) {
+      types[0].get_calc_meta().set_sql_udt(ObXMLSqlType);
+    } else if (!ob_is_xml_sql_type(in_type, types[0].get_subschema_id())) {
+      ret = OB_ERR_INVALID_TYPE_FOR_OP;
+      LOG_USER_ERROR(OB_ERR_INVALID_TYPE_FOR_OP, "-", "-");
+      LOG_WARN("inconsistent datatypes", K(ret), K(ob_obj_type_str(in_type)));
+    } else {
+      for (int8_t i = 1; i < param_num && OB_SUCC(ret); i++) {
+        ObObjType param_type = types[i].get_type();
+        if (param_type == ObNullType) {
+        } else if (ob_is_string_type(param_type)) {
+          if (types[i].get_charset_type() != CHARSET_UTF8MB4) {
+            types[i].set_calc_collation_type(CS_TYPE_UTF8MB4_BIN);
+          }
+        } else {
+          types[i].set_calc_type(ObVarcharType);
+          types[i].set_calc_collation_type(CS_TYPE_UTF8MB4_BIN);
+        }
+      }
+    }
+
+    if (OB_SUCC(ret)) {
+      type.set_type(ObVarcharType);
+      type.set_collation_type(CS_TYPE_UTF8MB4_BIN);
+    }
+  }
+  return ret;
+}
+
+
+int ObExprExtractValue::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_extract_value;
+  return OB_SUCCESS;
+}
+
+} // sql
+} // oceanbase