MiniOB 1
MiniOB is one mini database, helping developers to learn how database works.
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Public 成员函数 | |
CalcPhysicalOperator (vector< unique_ptr< Expression > > &&expressions) | |
PhysicalOperatorType | type () const override |
OpType | get_op_type () const override |
string | name () const override |
string | param () const override |
RC | open (Trx *trx) override |
RC | next () override |
RC | close () override |
int | cell_num () const |
Tuple * | current_tuple () override |
const vector< unique_ptr< Expression > > & | expressions () const |
RC | tuple_schema (TupleSchema &schema) const override |
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virtual string | name () const |
virtual string | param () const |
bool | is_physical () const override |
bool | is_logical () const override |
virtual PhysicalOperatorType | type () const =0 |
virtual RC | open (Trx *trx)=0 |
virtual RC | next () |
virtual RC | next (Chunk &chunk) |
virtual RC | close ()=0 |
virtual Tuple * | current_tuple () |
virtual RC | tuple_schema (TupleSchema &schema) const |
void | add_child (unique_ptr< PhysicalOperator > oper) |
vector< unique_ptr< PhysicalOperator > > & | children () |
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virtual OpType | get_op_type () const |
virtual bool | is_physical () const =0 |
virtual bool | is_logical () const =0 |
virtual uint64_t | hash () const |
virtual bool | operator== (const OperatorNode &other) const |
virtual unique_ptr< LogicalProperty > | find_log_prop (const vector< LogicalProperty * > &log_props) |
Generate the logical property of the operator node using the input logical properties. 更多... | |
virtual double | calculate_cost (LogicalProperty *prop, const vector< LogicalProperty * > &child_log_props, CostModel *cm) |
Calculates the cost of a logical operation. 更多... | |
void | add_general_child (OperatorNode *child) |
vector< OperatorNode * > & | get_general_children () |
Private 属性 | |
vector< unique_ptr< Expression > > | expressions_ |
ExpressionTuple< unique_ptr< Expression > > | tuple_ |
bool | emitted_ = false |
额外继承的成员函数 | |
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vector< unique_ptr< PhysicalOperator > > | children_ |
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vector< OperatorNode * > | general_children_ |
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inlineoverridevirtual |
实现了 PhysicalOperator.
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inlineoverridevirtual |
重载 PhysicalOperator .
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inlineoverridevirtual |
TODO: add this function TODO: unify logical and physical OpType
重载 OperatorNode .
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inlineoverridevirtual |
这两个函数是为了打印时使用的,比如在explain中
重载 PhysicalOperator .
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inlineoverridevirtual |
重载 PhysicalOperator .
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inlineoverridevirtual |
实现了 PhysicalOperator.
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inlineoverridevirtual |
重载 PhysicalOperator .
|
inlineoverridevirtual |
重载 PhysicalOperator .
|
inlineoverridevirtual |
实现了 PhysicalOperator.