database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-08-01 03:47:19 +03:00
Code Activity

Implemented general purpose psuedo columns: row_count & fragment

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

14
ndb/include/ndbapi/NdbOperation.hpp
View File

@ -609,6 +609,20 @@ public:
int interpret_exit_nok(Uint32 ErrorCode);
int interpret_exit_nok();
/**
* Interpreted program instruction:
*
* For scanning transactions,
* return this row, but no more from this fragment
*
* For non-scanning transactions,
* abort the whole transaction.
*
* @return -1 if unsuccessful.
*/
int interpret_exit_last_row();
/**
* Interpreted program instruction:
* Define a subroutine in an interpreted operation.