init push

2021-05-31 22:56:52 +08:00
commit cea7de1475
7020 changed files with 5689869 additions and 0 deletions
--- a/src/sql/optimizer/ob_log_sequence.cpp
+++ b/src/sql/optimizer/ob_log_sequence.cpp
@ -0,0 +1,109 @@
+/**
+ * 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_OPT
+#include "ob_log_sequence.h"
+#include "ob_log_operator_factory.h"
+#include "ob_optimizer_util.h"
+#include "sql/optimizer/ob_opt_est_cost.h"
+using namespace oceanbase::sql;
+using namespace oceanbase::common;
+using namespace oceanbase::sql::log_op_def;
+
+int ObLogSequence::allocate_exchange_post(AllocExchContext* ctx)
+{
+  int ret = OB_SUCCESS;
+  ObLogicalOperator* child = NULL;
+  ObDMLStmt* stmt = NULL;
+  ObExchangeInfo exch_info;
+  if (OB_ISNULL(ctx) || OB_ISNULL(stmt = get_stmt())) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("get unexpected null", K(ctx), K(stmt), K(ret));
+  } else if (stmt::T_INSERT == stmt->get_stmt_type() && 0 == get_num_of_child()) {
+  } else if (OB_ISNULL(child = get_child(first_child))) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("get unexpected null", K(ret));
+  } else if (child->get_sharding_info().is_local() || child->get_sharding_info().is_match_all()) {
+    if (OB_FAIL(sharding_info_.copy_with_part_keys(child->get_sharding_info()))) {
+      LOG_WARN("failed to deep copy sharding info from first child", K(ret));
+    } else { /*do nothing*/
+    }
+  } else {
+    // remote or distribution
+    if (OB_FAIL(child->allocate_exchange(ctx, exch_info))) {
+      LOG_WARN("failed to allocate exchange", K(ret));
+    } else {
+      sharding_info_.set_location_type(ObTableLocationType::OB_TBL_LOCATION_LOCAL);
+    }
+  }
+  return ret;
+}
+
+int ObLogSequence::copy_without_child(ObLogicalOperator*& out)
+{
+  int ret = OB_SUCCESS;
+  out = NULL;
+  ObLogicalOperator* op = NULL;
+  ObLogSequence* sequence = NULL;
+  if (OB_FAIL(clone(op))) {
+    LOG_WARN("failed to clone ObLogSequence", K(ret));
+  } else if (OB_ISNULL(sequence = static_cast<ObLogSequence*>(op))) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("failed to cast ObLogicalOperator * to ObLogSequence *", K(ret));
+  } else {
+    ARRAY_FOREACH_X(nextval_seq_ids_, idx, cnt, OB_SUCC(ret))
+    {
+      ret = sequence->nextval_seq_ids_.push_back(nextval_seq_ids_.at(idx));
+    }
+    out = sequence;
+  }
+  return ret;
+}
+
+uint64_t ObLogSequence::hash(uint64_t seed) const
+{
+  uint64_t hash_value = seed;
+  hash_value = ObOptimizerUtil::hash_array(hash_value, nextval_seq_ids_);
+  hash_value = ObLogicalOperator::hash(hash_value);
+  return hash_value;
+}
+
+int ObLogSequence::print_my_plan_annotation(char* buf, int64_t& buf_len, int64_t& pos, ExplainType type)
+{
+  int ret = OB_SUCCESS;
+  UNUSED(buf);
+  UNUSED(buf_len);
+  UNUSED(pos);
+  UNUSED(type);
+  return ret;
+}
+
+int ObLogSequence::est_cost()
+{
+  int ret = OB_SUCCESS;
+  ObLogicalOperator* child = NULL;
+  if (0 == get_num_of_child()) {
+    op_cost_ = ObOptEstCost::cost_sequence(0, nextval_seq_ids_.count());
+    cost_ = op_cost_;
+    card_ = 0.0;
+    width_ = 0.0;
+  } else if (OB_ISNULL(child = get_child(first_child))) {
+    ret = OB_ERR_UNEXPECTED;
+    LOG_WARN("get unexpected null", K(ret));
+  } else {
+    op_cost_ = ObOptEstCost::cost_sequence(child->get_card(), nextval_seq_ids_.count());
+    cost_ = op_cost_ + child->get_cost();
+    card_ = child->get_card();
+    width_ = child->get_width() + nextval_seq_ids_.count() * 8;
+  }
+  return ret;
+}