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patch 4.0

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This commit is contained in:
wangzelin.wzl
2022-10-24 10:34:53 +08:00
parent 4ad6e00ec3
commit 93a1074b0c
10533 changed files with 2588271 additions and 2299373 deletions
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81
src/sql/code_generator/ob_code_generator.h
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@ -16,12 +16,16 @@
#include "sql/engine/expr/ob_expr.h"
#include "lib/container/ob_iarray.h"
namespace oceanbase {
namespace common {
namespace oceanbase
{
namespace common
{
class ObIAllocator;
}
namespace sql {
namespace sql
{
class ObCodeGeneratorImpl;
class ObPhysicalPlan;
class ObLogPlan;
@ -29,59 +33,50 @@ class ObRawExpr;
class ObLogicalOperator;
class ObRawExprUniqueSet;
class ObCodeGenerator {
class ObCodeGenerator
{
public:
ObCodeGenerator(
bool use_jit, bool use_static_typing_engine, uint64_t min_cluster_version, DatumParamStore* param_store)
: use_jit_(use_jit),
use_static_typing_engine_(use_static_typing_engine),
min_cluster_version_(min_cluster_version),
param_store_(param_store)
{}
virtual ~ObCodeGenerator()
ObCodeGenerator(bool use_jit,
uint64_t min_cluster_version,
DatumParamStore *param_store)
: use_jit_(use_jit),
min_cluster_version_(min_cluster_version),
param_store_(param_store)
{}
virtual ~ObCodeGenerator() {}
int generate(const ObLogPlan& log_plan, ObPhysicalPlan& phy_plan);
//生成执行计划
//@param [in] log_plan 逻辑执行计划
//@param [out] phy_plan 物理执行计划
int generate(const ObLogPlan &log_plan, ObPhysicalPlan &phy_plan);
// detect batch row count for vectorized execution.
static int detect_batch_size(const ObLogPlan &log_plan, int64_t &batch_size);
private:
int generate_old_plan(const ObLogPlan& log_plan, ObPhysicalPlan& phy_plan);
int generate_exprs(const ObLogPlan& log_plan, ObPhysicalPlan& phy_plan);
//生成表达式
//@param [in] log_plan 逻辑执行计划
//@param [out] phy_plan 物理执行计划, 会初始化物理对象中rt_exprs_, 和frame_info_
int generate_exprs(const ObLogPlan &log_plan,
ObPhysicalPlan &phy_plan);
int generate_operators(const ObLogPlan& log_plan, ObPhysicalPlan& phy_plan);
// get all raw exprs of logical plan (include the subplans)
int get_plan_all_exprs(const ObLogPlan& plan, ObRawExprUniqueSet& exprs);
// get all plans, referenced in subplan_infos_ or referenced by logical operators.
// subplans are referenced in two ways:
// 1. ObLogicalPlan::subplan_infos_:
// subplan of subquery ref is add to subplan_infos_, e.g:
// select * from t1 where c1 < (select distinct c2 from t2);
// 2. ObLogicalOperator::my_plan_:
// subplan subplan scan is referenced in this way, we traverse all logical operators
// get all subplans. e.g.:
//
// Hash Join (my_plan_: root)
// Table Scan (my_plan_: root)
// Subplan Scan (my_plan_: root)
// Table Scan (my_plan_: subplan)
//
int get_all_log_plan(const ObLogPlan* plan, common::ObIArray<const ObLogPlan*>& plans);
// traverse logical operator tree, get all plans referenced by logical operators.
int get_all_log_plan(const ObLogicalOperator* op, common::ObIArray<const ObLogPlan*>& plans);
//生成物理算子
//@param [in] log_plan 逻辑执行计划
//@param [out] phy_plan 物理执行计划
int generate_operators(const ObLogPlan &log_plan,
ObPhysicalPlan &phy_plan);
// disallow copy
DISALLOW_COPY_AND_ASSIGN(ObCodeGenerator);
private:
//TODO shengle remove
bool use_jit_;
bool use_static_typing_engine_;
uint64_t min_cluster_version_;
DatumParamStore* param_store_;
//所有参数化后的常量对象
DatumParamStore *param_store_;
};
} // end namespace sql
} // end namespace oceanbase
} // end namespace sql
} // end namespace oceanbase
#endif /* OCEANBASE_SQL_CODE_GENERATOR_OB_CODE_GENERATOR_ */