init push

2021-05-31 22:56:52 +08:00
commit cea7de1475
7020 changed files with 5689869 additions and 0 deletions
--- a/src/sql/engine/expr/ob_expr_to_days.cpp
+++ b/src/sql/engine/expr/ob_expr_to_days.cpp
@ -0,0 +1,119 @@
+/**
+ * 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 "ob_expr_to_days.h"
+#include "lib/timezone/ob_time_convert.h"
+#include "share/object/ob_obj_cast.h"
+#include "sql/session/ob_sql_session_info.h"
+#include "sql/engine/expr/ob_expr_util.h"
+using namespace oceanbase::common;
+using namespace oceanbase::sql;
+
+namespace oceanbase {
+namespace sql {
+
+ObExprToDays::ObExprToDays(ObIAllocator& alloc)
+    : ObFuncExprOperator(alloc, T_FUN_SYS_TO_DAYS, N_TO_DAYS, 1, NOT_ROW_DIMENSION){};
+
+ObExprToDays::~ObExprToDays()
+{}
+
+int ObExprToDays::calc_result_type1(ObExprResType& type, ObExprResType& date, common::ObExprTypeCtx& type_ctx) const
+{
+  int ret = OB_SUCCESS;
+  type.set_int();
+  type.set_scale(common::ObAccuracy::DDL_DEFAULT_ACCURACY[common::ObIntType].scale_);
+  type.set_precision(common::ObAccuracy::DDL_DEFAULT_ACCURACY[common::ObIntType].precision_);
+  if (ob_is_enumset_tc(date.get_type())) {
+    date.set_calc_type(ObVarcharType);
+  } else {
+    const ObSQLSessionInfo* session = dynamic_cast<const ObSQLSessionInfo*>(type_ctx.get_session());
+    if (OB_ISNULL(session)) {
+      ret = OB_ERR_UNEXPECTED;
+      LOG_WARN("cast basic session to sql session info failed", K(ret));
+    } else if (session->use_static_typing_engine()) {
+      date.set_calc_type(ObDateType);
+    }
+  }
+  return ret;
+}
+
+int ObExprToDays::calc_result1(ObObj& result, const ObObj& date, ObExprCtx& expr_ctx) const
+{
+  int ret = OB_SUCCESS;
+  EXPR_DEFINE_CAST_CTX(expr_ctx, CM_NONE);
+  const ObObj* p_obj = NULL;
+  EXPR_CAST_OBJ_V2(ObDateType, date, p_obj);
+
+  if (OB_SUCC(ret)) {
+    if (OB_ISNULL(p_obj)) {
+      ret = OB_ERR_UNEXPECTED;
+      LOG_WARN("p_obj is null", K(ret));
+    } else if (p_obj->is_null() || OB_INVALID_DATE_VALUE == cast_ctx.warning_) {
+      result.set_null();
+    } else {
+      int64_t value = p_obj->get_date() + DAYS_FROM_ZERO_TO_BASE;
+      if (value < 0) {
+        result.set_null();
+      } else {
+        result.set_int(value);
+      }
+    }
+  } else {
+    LOG_WARN("cast obj failed", K(ret));
+  }
+  return ret;
+}
+
+int calc_todays_expr(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& res_datum)
+{
+  int ret = OB_SUCCESS;
+  ObDatum* day_datum = NULL;
+  // Unlike non-static engine which check whether return value is OB_INVLIAD_DATE_VALUE.
+  // If convert failed, result is set to ZERO_DATE(default cast mode is ZERO_ON_WARN)
+  // According to MySQL, when result is zero date, return value is NULL.
+  if (OB_FAIL(expr.args_[0]->eval(ctx, day_datum))) {
+    LOG_WARN("eval arg failed", K(ret));
+  } else if (day_datum->is_null()) {
+    res_datum.set_null();
+  } else {
+    int64_t day_int = day_datum->get_date() + DAYS_FROM_ZERO_TO_BASE;
+    if (day_int < 0 || ObTimeConverter::ZERO_DATE == day_int) {
+      res_datum.set_null();
+    } else {
+      res_datum.set_int(day_int);
+    }
+  }
+  return ret;
+}
+
+int ObExprToDays::cg_expr(ObExprCGCtx& expr_cg_ctx, const ObRawExpr& raw_expr, ObExpr& rt_expr) const
+{
+  int ret = OB_SUCCESS;
+  UNUSED(expr_cg_ctx);
+  if (OB_UNLIKELY(1 != raw_expr.get_param_count())) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("raw_expr should got one child", K(ret), K(raw_expr));
+  } else if (ObDateType != rt_expr.args_[0]->datum_meta_.type_) {
+    // TODO: support enum/set type parameter
+    // enum/set->varchar->date
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("param type should be date", K(ret), K(rt_expr));
+  } else {
+    rt_expr.eval_func_ = calc_todays_expr;
+  }
+  return ret;
+}
+
+}  // namespace sql
+}  // namespace oceanbase