patch 4.0

2022-10-24 10:34:53 +08:00
parent 4ad6e00ec3
commit 93a1074b0c
10533 changed files with 2588271 additions and 2299373 deletions
--- a/src/sql/engine/expr/ob_expr_dml_event.cpp
+++ b/src/sql/engine/expr/ob_expr_dml_event.cpp
@ -0,0 +1,93 @@
+/**
+ * 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_EXE
+#include "sql/engine/expr/ob_expr_dml_event.h"
+#include "sql/session/ob_sql_session_info.h"
+#include "sql/engine/ob_exec_context.h"
+#include "sql/engine/expr/ob_datum_cast.h"
+#include "sql/engine/dml/ob_table_modify_op.h"
+
+namespace oceanbase
+{
+namespace sql
+{
+ObExprDmlEvent::ObExprDmlEvent(ObIAllocator& alloc)
+    : ObFuncExprOperator(alloc,
+                         T_FUN_SYS_DML_EVENT,
+                         N_DML_EVENT,
+                         ONE_OR_TWO,
+                         NOT_ROW_DIMENSION,
+                         false,
+                         INTERNAL_IN_ORACLE_MODE)
+{
+}
+ObExprDmlEvent::~ObExprDmlEvent(){}
+
+int ObExprDmlEvent::calc_result_typeN(ObExprResType &type,
+                                      ObExprResType *dml,
+                                      int64_t param_num,
+                                      common::ObExprTypeCtx &type_ctx) const
+{
+  UNUSEDx(dml, type_ctx, param_num);
+  int ret = OB_SUCCESS;
+  type.set_tinyint();
+  type.set_precision(DEFAULT_PRECISION_FOR_BOOL);
+  type.set_scale(DEFAULT_SCALE_FOR_INTEGER);
+  type.set_result_flag(NOT_NULL_FLAG);
+  return ret;
+}
+
+int ObExprDmlEvent::cg_expr(ObExprCGCtx &op_cg_ctx,
+                            const ObRawExpr &raw_expr,
+                            ObExpr &rt_expr) const
+{
+  int ret = OB_SUCCESS;
+  UNUSEDx(op_cg_ctx, raw_expr);
+  rt_expr.eval_func_ = &calc_dml_event;
+  return ret;
+}
+
+int ObExprDmlEvent::calc_dml_event(const ObExpr &expr,
+                                   ObEvalCtx &ctx,
+                                   ObDatum &expr_datum)
+{
+  int ret = OB_SUCCESS;
+  ObDatum *dml = NULL;
+  ObDatum *update_col = NULL;
+  OZ (expr.args_[0]->eval(ctx, dml));
+  OV (OB_NOT_NULL(dml));
+  if (2 == expr.arg_cnt_) {
+    OZ (expr.args_[1]->eval(ctx, update_col));
+    OV (OB_NOT_NULL(update_col) && !update_col->is_null(), OB_INVALID_ARGUMENT);
+  }
+  OX (expr_datum.set_bool(false));
+  if (OB_SUCC(ret)) {
+    if (dml->get_int() == static_cast<int64_t>(ctx.exec_ctx_.get_dml_event())) {
+      if (static_cast<int64_t>(DE_UPDATING) == dml->get_int() && NULL != update_col) {
+        bool find = false;
+        const ObString &col = update_col->get_string();
+        const ColContentFixedArray *update_cols = ctx.exec_ctx_.get_update_columns();
+        for (int64_t i = 0; OB_SUCC(ret) && !find && i < update_cols->count(); i++) {
+          find = (!update_cols->at(i).is_implicit_ && 0 == col.case_compare(update_cols->at(i).column_name_));
+        }
+        expr_datum.set_bool(find);
+      } else {
+        expr_datum.set_bool(true); // success
+      }
+    }
+  }
+  return ret;
+}
+
+} // end namespace sql
+} // end namespace oceanbase