[FEAT MERGE]: online optimizer stats gather.

Co-authored-by: obdev <obdev@oceanbase.com>
2023-01-28 13:54:38 +08:00
parent 735401c8d7
commit 9484175163
74 changed files with 3416 additions and 85 deletions
--- a/src/sql/optimizer/ob_log_optimizer_stats_gathering.h
+++ b/src/sql/optimizer/ob_log_optimizer_stats_gathering.h
@ -0,0 +1,117 @@
+/**
+ * (C) 2016-2022 Alibaba Group Holding Limited.
+ *
+ *  ob_log_optimizer_stats_gathering.h
+ *
+ *  Author:
+ *    liuqifan.lqf@oceanbase.com
+ *
+ *  Created Time: Fri 12 Aug 2022 10:01:10 AM CST
+ *
+ */
+
+#ifndef OB_LOG_OPTIMIZER_STAT_GATHERING_H_
+#define OB_LOG_OPTIMIZER_STAT_GATHERING_H_
+
+#include "sql/optimizer/ob_logical_operator.h"
+#include "sql/resolver/dml/ob_del_upd_stmt.h"
+#include "share/stat/ob_stat_define.h"
+
+namespace oceanbase
+{
+namespace sql
+{
+
+struct OSGShareInfo {
+  OSGShareInfo() :
+  table_id_(common::OB_INVALID_ID),
+  calc_part_id_expr_(NULL),
+  part_level_(share::schema::PARTITION_LEVEL_ZERO),
+  col_conv_exprs_(),
+  generated_column_exprs_(),
+  column_ids_() {};
+  ~OSGShareInfo() = default;
+
+  uint64_t table_id_;
+  ObRawExpr *calc_part_id_expr_;
+  share::schema::ObPartitionLevel part_level_;
+  common::ObSEArray<ObRawExpr *, 4, common::ModulePageAllocator, true> col_conv_exprs_;
+  common::ObSEArray<ObRawExpr *, 4, common::ModulePageAllocator, true> generated_column_exprs_;
+  common::ObSEArray<uint64_t, 4, common::ModulePageAllocator, true> column_ids_;
+};
+
+class ObLogOptimizerStatsGathering : public ObLogicalOperator
+{
+public:
+  ObLogOptimizerStatsGathering(ObLogPlan &plan) :
+  ObLogicalOperator(plan),
+  table_id_(common::OB_INVALID_ID),
+  calc_part_id_expr_(NULL),
+  part_level_(share::schema::PARTITION_LEVEL_ZERO),
+  osg_type_(OSG_TYPE::GATHER_OSG),
+  col_conv_exprs_(),
+  generated_column_exprs_(),
+  column_ids_()
+  {}
+
+  virtual ~ObLogOptimizerStatsGathering() = default;
+  const char *get_name() const;
+  virtual int est_cost() override;
+  virtual int get_op_exprs(ObIArray<ObRawExpr*> &all_exprs) override;
+
+  int inner_replace_generated_agg_expr(
+      const common::ObIArray<std::pair<ObRawExpr *, ObRawExpr *> > &to_replace_exprs) override;
+
+  inline void set_table_id(uint64_t table_id) { table_id_ = table_id; };
+  inline uint64_t get_table_id() { return table_id_; };
+  inline void set_osg_type(OSG_TYPE type) { osg_type_ = type; };
+  inline OSG_TYPE get_osg_type () { return osg_type_; };
+  inline bool is_merge_osg() {return osg_type_ == OSG_TYPE::MERGE_OSG; };
+  inline bool is_gather_osg() { return osg_type_ == OSG_TYPE::GATHER_OSG; };
+  inline share::schema::ObPartitionLevel get_part_level() { return part_level_; };
+  inline void set_part_level(share::schema::ObPartitionLevel level) { part_level_ = level; };
+  inline ObRawExpr *&get_calc_part_id_expr() { return calc_part_id_expr_; };
+  int init_calc_part_id_expr();
+  int get_target_osg_id(uint64_t &target_id);
+  int add_col_conv_expr(ObRawExpr *expr) {
+    return col_conv_exprs_.push_back(expr);
+  }
+  int add_generated_column_expr(ObRawExpr *expr) {
+    return generated_column_exprs_.push_back(expr);
+  }
+  int add_column_id(uint64_t column_id) {
+    return column_ids_.push_back(column_id);
+  }
+  int set_col_conv_exprs(const common::ObIArray<ObRawExpr *> &col_conv_exprs) {
+    return col_conv_exprs_.assign(col_conv_exprs);
+  }
+  int set_generated_column_exprs(const common::ObIArray<ObRawExpr *> &generated_column_exprs) {
+    return generated_column_exprs_.assign(generated_column_exprs);
+  }
+  int set_column_ids(const common::ObIArray<uint64_t> &column_ids) {
+    return column_ids_.assign(column_ids);
+  }
+  void set_calc_part_id_expr(ObRawExpr *calc_part_id_expr) {
+    calc_part_id_expr_ = calc_part_id_expr;
+  }
+  common::ObIArray<ObRawExpr*>& get_col_conv_exprs() { return col_conv_exprs_; };
+  common::ObIArray<ObRawExpr*>& get_generated_column_exprs() { return generated_column_exprs_; };
+  common::ObIArray<uint64_t>& get_column_ids() { return column_ids_; };
+private:
+  int inner_get_table_schema(const ObTableSchema *&table_schema);
+  int inner_get_stat_part_cnt(const ObTableSchema *table_schema, uint64_t &part_num);
+  uint64_t table_id_;
+  ObRawExpr *calc_part_id_expr_;
+  share::schema::ObPartitionLevel part_level_;
+  OSG_TYPE osg_type_;
+  common::ObSEArray<ObRawExpr *, 4, common::ModulePageAllocator, true> col_conv_exprs_;
+  common::ObSEArray<ObRawExpr *, 4, common::ModulePageAllocator, true> generated_column_exprs_;
+  common::ObSEArray<uint64_t, 4, common::ModulePageAllocator, true> column_ids_;
+
+  DISALLOW_COPY_AND_ASSIGN(ObLogOptimizerStatsGathering);
+};
+
+}
+}
+
+#endif