MiniOB 1
MiniOB is one mini database, helping developers to learn how database works.
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Public 成员函数 | |
ExpressionTuple (const vector< ExprPointerType > &expressions) | |
void | set_tuple (const Tuple *tuple) |
int | cell_num () const override |
获取元组中的Cell的个数 更多... | |
RC | cell_at (int index, Value &cell) const override |
获取指定位置的Cell 更多... | |
RC | spec_at (int index, TupleCellSpec &spec) const override |
RC | find_cell (const TupleCellSpec &spec, Value &cell) const override |
根据cell的描述,获取cell的值 更多... | |
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virtual int | cell_num () const =0 |
获取元组中的Cell的个数 更多... | |
virtual RC | cell_at (int index, Value &cell) const =0 |
获取指定位置的Cell 更多... | |
virtual RC | spec_at (int index, TupleCellSpec &spec) const =0 |
virtual RC | find_cell (const TupleCellSpec &spec, Value &cell) const =0 |
根据cell的描述,获取cell的值 更多... | |
virtual string | to_string () const |
virtual RC | compare (const Tuple &other, int &result) const |
Private 成员函数 | |
RC | get_value (const ExprPointerType &expression, Value &value) const |
Private 属性 | |
const vector< ExprPointerType > & | expressions_ |
const Tuple * | child_tuple_ = nullptr |
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inlineoverridevirtual |
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inlineoverridevirtual |
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inlineoverridevirtual |
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inlineoverridevirtual |
实现了 Tuple.