MySQL 8.0.30
Source Code Documentation
rowid_capable_row_iterator.h
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22
23#ifndef SQL_RANGE_OPTIMIZER_ROWID_CAPABLE_ROW_ITERATOR_H_
24#define SQL_RANGE_OPTIMIZER_ROWID_CAPABLE_ROW_ITERATOR_H_
25
26#include "my_inttypes.h"
28
29/**
30 An interface for RowIterators that have a given row ID, ie.,
31 they can be children in ROR (rowid-ordered) scans. The only
32 examples of this are QUICK_RANGE_SCAN_SELECT and RowIDIntersectionIterator
33 (which itself can also be a parent).
34 */
36 public:
39
40 /*
41 Row ID of last row retrieved by this quick select. This is used only when
42 doing ROR-index_merge selects. Updated on successful Read().
43 */
44 virtual uchar *last_rowid() const = 0;
45};
46
47#endif // SQL_RANGE_OPTIMIZER_ROWID_CAPABLE_ROW_ITERATOR_H_
An interface for RowIterators that have a given row ID, ie., they can be children in ROR (rowid-order...
Definition: rowid_capable_row_iterator.h:35
RowIDCapableRowIterator(THD *thd, TABLE *table)
Definition: rowid_capable_row_iterator.h:37
virtual uchar * last_rowid() const =0
THD * thd() const
Definition: row_iterator.h:227
For each client connection we create a separate thread with THD serving as a thread/connection descri...
Definition: sql_class.h:922
Definition: row_iterator.h:233
TABLE * table() const
Definition: row_iterator.h:245
Some integer typedefs for easier portability.
unsigned char uchar
Definition: my_inttypes.h:51
Definition: table.h:1394