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Jul 10th, 2015
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  1. case OP_CustomResultRow:
  2. {
  3.  
  4. .
  5. .
  6. .
  7. copied from op_resultrow
  8. .
  9. .
  10. .
  11. .
  12.  
  13. custom_pResultSet = (Mem*) malloc(sizeof (Mem) * (custom_numElements));
  14.  
  15. for(i = 0;i < custom_numElements;i++)
  16. {
  17. sqlite3VdbeMemInit(&custom_pResultSet[i], p->db, MEM_Null);
  18. }
  19.  
  20. custom_pResultSet[0].z = zColumnSelector;
  21. custom_pResultSet[0].flags = MEM_Str;
  22. custom_pResultSet[0].n = strlen(zColumnSelector);
  23. custom_pResultSet[0].zMalloc = zColumnSelector;
  24. custom_pResultSet[0].enc = SQLITE_UTF8;
  25.  
  26. k = 1;
  27.  
  28. for (i = 0, j = 0; i < p->custom_iNumTables; i++)
  29. {
  30. if (p->custom_pAllRows[i] == 1)
  31. {
  32. l = 0;
  33. while (l < p->custom_piColumnCount[i])
  34. {
  35. custom_pResultSet[k++] = aMem[pOp->p1 + j]; // copy every column into the result set
  36. l++;
  37. j++;
  38. }
  39. }
  40. else
  41. {
  42. j += p->custom_piPriKey[i];
  43. custom_pResultSet[k++] = aMem[pOp->p1 + j]; // copy only primary key into the result set
  44. j += p->custom_piColumnCount[i];
  45. j -= p->custom_piPriKey[i];
  46. }
  47. }
  48.  
  49.  
  50. pMem = p->pResultSet = custom_pResultSet;
  51.  
  52. for (i = 0; i < custom_numElements ; i++)
  53. {
  54. char zBuf[200];
  55. assert(memIsValid(&pMem[i]));
  56. Deephemeralize(&pMem[i]);
  57. assert((pMem[i].flags & MEM_Ephem) == 0
  58. || (pMem[i].flags & (MEM_Str | MEM_Blob)) == 0);
  59.  
  60. sqlite3VdbeMemNulTerminate(&pMem[i]);
  61. REGISTER_TRACE(pOp->p1 + i, &pMem[i]);
  62. }
  63.  
  64. if (db->mallocFailed) goto no_mem;
  65.  
  66. p->pc = pc + 1;
  67. rc = SQLITE_ROW;
  68. goto vdbe_return;
  69. }
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