patch 4.0

src/sql/engine/expr/ob_expr_char_to_rowid.cpp

@@ -0,0 +1,72 @@
+/**
+ * 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.
+ */
+
+#define USING_LOG_PREFIX SQL_ENG
+
+#include "lib/oblog/ob_log.h"
+#include "sql/engine/expr/ob_expr_char_to_rowid.h"
+#include "objit/common/ob_item_type.h"
+#include "sql/session/ob_sql_session_info.h"
+
+namespace oceanbase
+{
+using namespace common;
+namespace sql
+{
+
+ObExprCharToRowID::ObExprCharToRowID(ObIAllocator &alloc)
+    : ObStringExprOperator(alloc, T_FUN_SYS_CHAR_TO_ROWID, N_CHAR_TO_ROWID, 1)
+{
+}
+
+ObExprCharToRowID::~ObExprCharToRowID()
+{
+}
+
+int ObExprCharToRowID::calc_result_type1(ObExprResType &type,
+                                     ObExprResType &type1,
+                                     ObExprTypeCtx &type_ctx) const
+{
+  int ret = OB_SUCCESS;
+  UNUSED(type_ctx);
+  type.set_urowid();
+  type.set_length(type1.get_length());
+  type1.set_calc_meta(type.get_obj_meta());
+  return ret;
+}
+
+int ObExprCharToRowID::cg_expr(ObExprCGCtx &expr_cg_ctx, const ObRawExpr &raw_expr,
+                               ObExpr &rt_expr) const
+{
+  int ret = OB_SUCCESS;
+  UNUSED(expr_cg_ctx);
+  UNUSED(raw_expr);
+  CK(1 == rt_expr.arg_cnt_);
+  rt_expr.eval_func_ = eval_char_to_rowid;
+  return ret;
+}
+
+int ObExprCharToRowID::eval_char_to_rowid(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &expr_datum)
+{
+  int ret = OB_SUCCESS;
+  ObDatum *arg = NULL;
+  if (OB_FAIL(expr.eval_param_value(ctx, arg))) {
+    LOG_WARN("evaluate parameters failed", K(ret));
+  } else {
+    expr_datum = *arg;
+    LOG_DEBUG("calc char to rowid done", KPC(arg), K(expr_datum));
+  }
+  return ret;
+}
+
+} /* sql */
+} /* oceanbase */