Method ReadColumn

storage/connect/tabmysql.cpp:1392–1435

/ ReadColumn: */ /

/*  ReadColumn:                                                        */
/***********************************************************************/
void MYSQLCOL::ReadColumn(PGLOBAL g)
  {
  char  *p, *buf, tim[20];
  int    rc;
  PTDBMY tdbp = (PTDBMY)To_Tdb;

  /*********************************************************************/
  /*  If physical fetching of the line was deferred, do it now.        */
  /*********************************************************************/
  if (!tdbp->Fetched)
  {
    if ((rc = tdbp->Myc.Fetch(g, tdbp->N)) != RC_OK) {
      if (rc == RC_EF)
        snprintf(g->Message, sizeof(g->Message), MSG(INV_DEF_READ), rc);

			throw 11;
		} else
      tdbp->Fetched = true;
  }
  if ((buf = ((PTDBMY)To_Tdb)->Myc.GetCharField(Rank))) {
    if (trace(2))
      htrc("MySQL ReadColumn: name=%s buf=%s\n", Name, buf);

    // TODO: have a true way to differenciate temporal values
    if (Buf_Type == TYPE_DATE && strlen(buf) == 8)
      // This is a TIME value
      p = strcat(strcpy(tim, "1970-01-01 "), buf);
    else
      p = buf;

    if (Value->SetValue_char(p, strlen(p))) {
      snprintf(g->Message, sizeof(g->Message), "Out of range value for column %s at row %d",
              Name, tdbp->RowNumber(g));
      PushWarning(g, tdbp);
      } // endif SetValue_char

  } else {
    if (Nullable)
      Value->SetNull(true);

    Value->Reset();              // Null value
  } // endif buf

  } // end of ReadColumn

/***********************************************************************/
/*  WriteColumn: make sure the bind buffer is updated.                 */