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_from_days.cpp
+++ b/src/sql/engine/expr/ob_expr_from_days.cpp
@ -0,0 +1,86 @@
+/**
+ * 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_from_days.h"
+#include "sql/session/ob_sql_session_info.h"
+using namespace oceanbase::common;
+using namespace oceanbase::sql;
+
+namespace oceanbase {
+namespace sql {
+
+ObExprFromDays::ObExprFromDays(ObIAllocator& alloc)
+    : ObFuncExprOperator(alloc, T_FUN_SYS_FROM_DAYS, N_FROM_DAYS, 1, NOT_ROW_DIMENSION){};
+
+ObExprFromDays::~ObExprFromDays()
+{}
+
+int ObExprFromDays::calc_result1(ObObj& result, const ObObj& text, ObExprCtx& expr_ctx) const
+{
+  int ret = OB_SUCCESS;
+  if (text.is_null()) {
+    result.set_null();
+  } else {
+    TYPE_CHECK(text, ObInt32Type);
+    // max: 9999-12-31 min:0000-00-00
+    int32_t value = text.get_int32();
+    if (value >= MIN_DAYS_OF_DATE && value <= MAX_DAYS_OF_DATE) {
+      result.set_date(value - DAYS_FROM_ZERO_TO_BASE);
+    } else {
+      result.set_date(ObTimeConverter::ZERO_DATE);
+    }
+  }
+  UNUSED(expr_ctx);
+  return ret;
+}
+
+int ObExprFromDays::cg_expr(ObExprCGCtx& op_cg_ctx, const ObRawExpr& raw_expr, ObExpr& rt_expr) const
+{
+  UNUSED(op_cg_ctx);
+  UNUSED(raw_expr);
+  int ret = OB_SUCCESS;
+  if (rt_expr.arg_cnt_ != 1) {
+    ret = OB_INVALID_ARGUMENT;
+    LOG_WARN("fromdays expr should have one param", K(ret), K(rt_expr.arg_cnt_));
+  } else if (OB_ISNULL(rt_expr.args_) || OB_ISNULL(rt_expr.args_[0])) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("children of fromdays expr is null", K(ret), K(rt_expr.args_));
+  } else {
+    CK(ObInt32Type == rt_expr.args_[0]->datum_meta_.type_);
+    rt_expr.eval_func_ = ObExprFromDays::calc_fromdays;
+  }
+  return ret;
+}
+
+int ObExprFromDays::calc_fromdays(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& expr_datum)
+{
+  int ret = OB_SUCCESS;
+  ObDatum* param_datum = NULL;
+  if (OB_FAIL(expr.args_[0]->eval(ctx, param_datum))) {
+    LOG_WARN("eval param value failed", K(ret));
+  } else if (OB_UNLIKELY(param_datum->is_null())) {
+    expr_datum.set_null();
+  } else {
+    // max: 9999-12-31 min:0000-00-00
+    int32_t value = param_datum->get_int32();
+    if (value >= MIN_DAYS_OF_DATE && value <= MAX_DAYS_OF_DATE) {
+      expr_datum.set_date(value - DAYS_FROM_ZERO_TO_BASE);
+    } else {
+      expr_datum.set_date(ObTimeConverter::ZERO_DATE);
+    }
+  }
+  return ret;
+}
+
+}  // namespace sql
+}  // namespace oceanbase