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Ndb.hpp, Ndb.cpp, ha_ndbcluster.cc:

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Add a check if setting an auto_increment field will change it's next value before retrieving tuple_id_range lock. This avoids hitting locks when updating auto_increment values to a lower value than the current maximum. This is useful in loading a table with auto_increment where one loads the highest numbered pk's first and then proceeds backwards to the first. This can then be achieved with the same performance as a normal insert without auto_increment.
ndb_restore.result:
  Updated result file


mysql-test/suite/ndb/r/ndb_restore.result:
  Updated result file
sql/ha_ndbcluster.cc:
  Add a check if setting an auto_increment field will change it's next value before retrieving tuple_id_range lock. This avoids hitting locks when updating auto_increment values to a lower value than the current maximum. This is useful in loading a table with auto_increment where one loads the highest numbered pk's first and then proceeds backwards to the first. This can then be achieved with the same performance as a normal insert without auto_increment.
storage/ndb/include/ndbapi/Ndb.hpp:
  Add a check if setting an auto_increment field will change it's next value before retrieving tuple_id_range lock. This avoids hitting locks when updating auto_increment values to a lower value than the current maximum. This is useful in loading a table with auto_increment where one loads the highest numbered pk's first and then proceeds backwards to the first. This can then be achieved with the same performance as a normal insert without auto_increment.
storage/ndb/src/ndbapi/Ndb.cpp:
  Add a check if setting an auto_increment field will change it's next value before retrieving tuple_id_range lock. This avoids hitting locks when updating auto_increment values to a lower value than the current maximum. This is useful in loading a table with auto_increment where one loads the highest numbered pk's first and then proceeds backwards to the first. This can then be achieved with the same performance as a normal insert without auto_increment.
This commit is contained in:
unknown
2008-01-23 11:40:06 +01:00
parent 57cea8f663
commit 7e6ab3a006
4 changed files with 179 additions and 298 deletions
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23
storage/ndb/include/ndbapi/Ndb.hpp
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@ -1515,37 +1515,40 @@ public:
TupleIdRange() {}
Uint64 m_first_tuple_id;
Uint64 m_last_tuple_id;
Uint64 m_highest_seen;
void reset() {
m_first_tuple_id = ~(Uint64)0;
m_last_tuple_id = ~(Uint64)0;
m_highest_seen = 0;
};
};
int initAutoIncrement();
int getAutoIncrementValue(const char* aTableName,
Uint64 & tupleId, Uint32 cacheSize,
Uint64 & autoValue, Uint32 cacheSize,
Uint64 step = 1, Uint64 start = 1);
int getAutoIncrementValue(const NdbDictionary::Table * aTable,
Uint64 & tupleId, Uint32 cacheSize,
Uint64 & autoValue, Uint32 cacheSize,
Uint64 step = 1, Uint64 start = 1);
int getAutoIncrementValue(const NdbDictionary::Table * aTable,
TupleIdRange & range, Uint64 & tupleId,
TupleIdRange & range, Uint64 & autoValue,
Uint32 cacheSize,
Uint64 step = 1, Uint64 start = 1);
int readAutoIncrementValue(const char* aTableName,
Uint64 & tupleId);
Uint64 & autoValue);
int readAutoIncrementValue(const NdbDictionary::Table * aTable,
Uint64 & tupleId);
Uint64 & autoValue);
int readAutoIncrementValue(const NdbDictionary::Table * aTable,
TupleIdRange & range, Uint64 & tupleId);
TupleIdRange & range, Uint64 & autoValue);
int setAutoIncrementValue(const char* aTableName,
Uint64 tupleId, bool modify);
Uint64 autoValue, bool modify);
int setAutoIncrementValue(const NdbDictionary::Table * aTable,
Uint64 tupleId, bool modify);
Uint64 autoValue, bool modify);
int setAutoIncrementValue(const NdbDictionary::Table * aTable,
TupleIdRange & range, Uint64 tupleId,
TupleIdRange & range, Uint64 autoValue,
bool modify);
bool checkUpdateAutoIncrementValue(TupleIdRange & range, Uint64 autoValue);
private:
int getTupleIdFromNdb(const NdbTableImpl* table,
TupleIdRange & range, Uint64 & tupleId,
@ -1554,6 +1557,8 @@ private:
TupleIdRange & range, Uint64 & tupleId);
int setTupleIdInNdb(const NdbTableImpl* table,
TupleIdRange & range, Uint64 tupleId, bool modify);
int checkTupleIdInNdb(TupleIdRange & range,
Uint64 tupleId);
int opTupleIdOnNdb(const NdbTableImpl* table,
TupleIdRange & range, Uint64 & opValue, Uint32 op);
public: