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Implemented general purpose psuedo columns: row_count & fragment

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Implemented new interpreter instruction: exit_ok_last

This two new features combined can be used to make fast select count
 


ndb/include/kernel/AttributeHeader.hpp:
  Psuedo columns fragment & row_count
ndb/include/kernel/GlobalSignalNumbers.h:
  Impl. READ_ROWCOUNT
ndb/include/kernel/signaldata/TupKey.hpp:
  Remove unused pageId pageIndex and replace with lastRow flag
ndb/include/ndbapi/NdbOperation.hpp:
  New instruction for last_row
ndb/src/kernel/blocks/dbacc/Dbacc.hpp:
  REQ_ROWCOUNT
ndb/src/kernel/blocks/dbacc/DbaccInit.cpp:
  REQ_ROWCOUNT
ndb/src/kernel/blocks/dbacc/DbaccMain.cpp:
  REQ_ROWCOUNT
ndb/src/kernel/blocks/dblqh/Dblqh.hpp:
  REQ_ROWCOUNT + last row
ndb/src/kernel/blocks/dblqh/DblqhInit.cpp:
  REQ_ROWCOUNT
ndb/src/kernel/blocks/dblqh/DblqhMain.cpp:
  REQ_ROWCOUNT + last row
ndb/src/kernel/blocks/dbtup/Dbtup.hpp:
  Add readers for new psuedo columns
ndb/src/kernel/blocks/dbtup/DbtupExecQuery.cpp:
  Add readers for new psuedo columns
ndb/src/kernel/blocks/dbtup/DbtupRoutines.cpp:
  Add readers for new psuedo columns
ndb/src/ndbapi/NdbOperationDefine.cpp:
  Use exit ok (not ok_last)
ndb/src/ndbapi/NdbOperationExec.cpp:
  Use exit ok (not ok_last)
ndb/src/ndbapi/NdbOperationInt.cpp:
  New instruction
This commit is contained in:
unknown
2004-08-24 23:27:32 +02:00
parent 1e91f015ca
commit d2c8f1a762
16 changed files with 128 additions and 34 deletions
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6
ndb/include/kernel/AttributeHeader.hpp
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@ -30,6 +30,12 @@ class AttributeHeader {
friend class Suma;
public:
/**
* Psuedo columns
*/
STATIC_CONST( FRAGMENT = 0xFFFE );
STATIC_CONST( ROW_COUNT = 0xFFFD );
/** Initialize AttributeHeader at location aHeaderPtr */
static AttributeHeader& init(void* aHeaderPtr, Uint32 anAttributeId,
Uint32 aDataSize);