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- Added table type PIVOT

Browse Source 
modified:
  storage/connect/filamdbf.cpp
  storage/connect/ha_connect.cc
  storage/connect/ha_connect.h
  storage/connect/mycat.cc
  storage/connect/myconn.cpp
  storage/connect/odbconn.cpp
  storage/connect/plgcnx.h
  storage/connect/plgdbsem.h
  storage/connect/plgdbutl.cpp
  storage/connect/tabfmt.cpp
  storage/connect/tabpivot.cpp
  storage/connect/tabpivot.h
  storage/connect/tabutil.cpp
  storage/connect/tabwmi.cpp
  storage/connect/tabxcl.cpp
  storage/connect/value.cpp
  storage/connect/value.h
This commit is contained in:
Olivier Bertrand
2013-05-10 20:22:21 +02:00
parent be268bed3d
commit 99d95c8a2f
17 changed files with 444 additions and 418 deletions
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596
storage/connect/tabpivot.cpp
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@@ -1,11 +1,11 @@
/************ TabPivot C++ Program Source Code File (.CPP) *************/
/* PROGRAM NAME: TABPIVOT */
/* ------------- */
/* Version 1.3 */
/* Version 1.4 */
/* */
/* COPYRIGHT: */
/* ---------- */
/* (C) Copyright to the author Olivier BERTRAND 2005-2012 */
/* (C) Copyright to the author Olivier BERTRAND 2005-2013 */
/* */
/* WHAT THIS PROGRAM DOES: */
/* ----------------------- */
@@ -41,10 +41,13 @@
#include "global.h"
#include "plgdbsem.h"
#include "xtable.h"
#include "xindex.h"
//#include "xindex.h"
#include "tabcol.h"
#include "colblk.h"
#include "tabmysql.h"
//#include "tabmysql.h"
#include "myconn.h"
#include "csort.h"
#include "tabutil.h"
#include "tabpivot.h"
#include "valblk.h"
#include "ha_connect.h"
@@ -52,111 +55,7 @@
extern "C" int trace;
/* --------------- Implementation of the PIVOT classes --------------- */
/***********************************************************************/
/* DefineAM: define specific AM block values from PIVOT table. */
/***********************************************************************/
bool PIVOTDEF::DefineAM(PGLOBAL g, LPCSTR am, int poff)
{
char *p1, *p2;
PHC hc = ((MYCAT*)Cat)->GetHandler();
Host = Cat->GetStringCatInfo(g, Name, "Host", "localhost");
User = Cat->GetStringCatInfo(g, Name, "User", "root");
Pwd = Cat->GetStringCatInfo(g, Name, "Password", NULL);
DB = Cat->GetStringCatInfo(g, Name, "Database", (PSZ)hc->GetDBName(NULL));
Tabsrc = Cat->GetStringCatInfo(g, Name, "SrcDef", NULL);
Tabname = Cat->GetStringCatInfo(g, Name, "Name", NULL);
Picol = Cat->GetStringCatInfo(g, Name, "PivotCol", NULL);
Fncol = Cat->GetStringCatInfo(g, Name, "FncCol", NULL);
// If fncol is like avg(colname), separate Fncol and Function
if (Fncol && (p1 = strchr(Fncol, '(')) && (p2 = strchr(p1, ')')) &&
(*Fncol != '"') && (!*(p2+1))) {
*p1++ = '\0'; *p2 = '\0';
Function = Fncol;
Fncol = p1;
} else
Function = Cat->GetStringCatInfo(g, Name, "Function", "SUM");
GBdone = Cat->GetIntCatInfo(Name, "Groupby", 0) ? TRUE : FALSE;
Port = Cat->GetIntCatInfo(Name, "Port", 3306);
Desc = (*Tabname) ? Tabname : Tabsrc;
return FALSE;
} // end of DefineAM
/***********************************************************************/
/* GetTable: makes a new TDB of the proper type. */
/***********************************************************************/
PTDB PIVOTDEF::GetTable(PGLOBAL g, MODE m)
{
return new(g) TDBPIVOT(this);
} // end of GetTable
/* ------------------------------------------------------------------- */
/***********************************************************************/
/* Implementation of the TDBPIVOT class. */
/***********************************************************************/
TDBPIVOT::TDBPIVOT(PPIVOTDEF tdp) : TDBASE(tdp), CSORT(FALSE)
{
Tqrp = NULL;
Host = tdp->Host;
Database = tdp->DB;
User = tdp->User;
Pwd = tdp->Pwd;
Port = tdp->Port;
Qryp = NULL;
Tabname = tdp->Tabname; // Name of source table
Tabsrc = tdp->Tabsrc; // SQL description of source table
Picol = tdp->Picol; // Pivot column name
Fncol = tdp->Fncol; // Function column name
Function = tdp->Function; // Aggregate function name
Xcolp = NULL; // To the FNCCOL column
//Xresp = NULL; // To the pivot result column
//Rblkp = NULL; // The value block of the pivot column
Fcolp = NULL; // To the function column
GBdone = tdp->GBdone;
Mult = -1; // Estimated table size
N = 0; // The current table index
M = 0; // The occurence rank
FileStatus = 0; // Logical End-of-File
RowFlag = 0; // 0: Ok, 1: Same, 2: Skip
} // end of TDBPIVOT constructor
#if 0
TDBPIVOT::TDBPIVOT(PTDBPIVOT tdbp) : TDBASE(tdbp), CSORT(FALSE)
{
Tdbp = tdbp->Tdbp;
Sqlp = tdbp->Sqlp;
Qryp = tdbp->Qryp;
Tabname = tdbp->Tabname;
Tabsrc = tdbp->Tabsrc;
Picol = tdbp->Picol;
Fncol = tdbp->Fncol;
Function = tdbp->Function;
Xcolp = tdbp->Xcolp;
Xresp = tdbp->Xresp;
Rblkp = tdbp->Rblkp;
Fcolp = tdbp->Fcolp;
Mult = tdbp->Mult;
N = tdbp->N;
M = tdbp->M;
FileStatus = tdbp->FileStatus;
RowFlag = tdbp->RowFlag;
} // end of TDBPIVOT copy constructor
// Is this really useful ???
PTDB TDBPIVOT::CopyOne(PTABS t)
{
PTDB tp = new(t->G) TDBPIVOT(this);
tp->SetColumns(Columns);
return tp;
} // end of CopyOne
#endif // 0
/***********************************************************************/
/* Prepare the source table Query. */
/***********************************************************************/
@@ -165,14 +64,17 @@ PQRYRES TDBPIVOT::GetSourceTable(PGLOBAL g)
if (Qryp)
return Qryp; // Already done
if (!Tabsrc && Tabname) {
if (Tabname) {
char *def, *colist;
size_t len = 0;
PCOL colp;
PDBUSER dup = (PDBUSER)g->Activityp->Aptr;
if (InitTable(g))
return NULL;
// Evaluate the length of the column list
for (colp = Columns; colp; colp = colp->GetNext())
for (colp = Tdbp->Columns; colp; colp = colp->GetNext())
len += (strlen(colp->GetName()) + 2);
*(colist = (char*)PlugSubAlloc(g, NULL, len)) = 0;
@@ -182,7 +84,7 @@ PQRYRES TDBPIVOT::GetSourceTable(PGLOBAL g)
strcpy(def, "SELECT ");
if (!Fncol) {
for (colp = Columns; colp; colp = colp->GetNext())
for (colp = Tdbp->Columns; colp; colp = colp->GetNext())
if (!Picol || stricmp(Picol, colp->GetName()))
Fncol = colp->GetName();
@@ -199,7 +101,7 @@ PQRYRES TDBPIVOT::GetSourceTable(PGLOBAL g)
if (!Picol) {
// Find default Picol as the last one not equal to Fncol
for (colp = Columns; colp; colp = colp->GetNext())
for (colp = Tdbp->Columns; colp; colp = colp->GetNext())
if (!Fncol || stricmp(Fncol, colp->GetName()))
Picol = colp->GetName();
@@ -357,7 +259,6 @@ int TDBPIVOT::MakePivotColumns(PGLOBAL g)
return Mult;
} // end of MakePivotColumns
#if 0
/***********************************************************************/
/* Update fields in the MySQL table structure */
/* Note: this does not work. Indeed the new rows are correctly made */
@@ -529,31 +430,257 @@ bool TDBPIVOT::UpdateTableFields(PGLOBAL g, int n)
} // end of UpdateTableFields
#endif // 0
/* --------------- Implementation of the PIVOT classes --------------- */
/***********************************************************************/
/* PIVOTDEF constructor. */
/***********************************************************************/
PIVOTDEF::PIVOTDEF(void)
{
Host = User = Pwd = DB = NULL;
Tabname = Tabsrc = Picol = Fncol = Function = NULL;
GBdone = Accept = false;
Port = 0;
} // end of PIVOTDEF constructor
/***********************************************************************/
/* DefineAM: define specific AM block values from PIVOT table. */
/***********************************************************************/
bool PIVOTDEF::DefineAM(PGLOBAL g, LPCSTR am, int poff)
{
char *p1, *p2;
PHC hc = ((MYCAT*)Cat)->GetHandler();
if (!PRXDEF::DefineAM(g, am, poff)) {
Tabname = (char*)Tablep->GetName();
DB = (char*)Tablep->GetQualifier();
} else {
DB = Cat->GetStringCatInfo(g, "Database", "*");
Tabsrc = Cat->GetStringCatInfo(g, "SrcDef", NULL);
} // endif
Host = Cat->GetStringCatInfo(g, "Host", "localhost");
User = Cat->GetStringCatInfo(g, "User", "*");
Pwd = Cat->GetStringCatInfo(g, "Password", NULL);
Picol = Cat->GetStringCatInfo(g, "PivotCol", NULL);
Fncol = Cat->GetStringCatInfo(g, "FncCol", NULL);
// If fncol is like avg(colname), separate Fncol and Function
if (Fncol && (p1 = strchr(Fncol, '(')) && (p2 = strchr(p1, ')')) &&
(*Fncol != '"') && (!*(p2+1))) {
*p1++ = '\0'; *p2 = '\0';
Function = Fncol;
Fncol = p1;
} else
Function = Cat->GetStringCatInfo(g, "Function", "SUM");
GBdone = Cat->GetBoolCatInfo("Groupby", false);
Accept = Cat->GetBoolCatInfo("Accept", false);
Port = Cat->GetIntCatInfo("Port", 3306);
Desc = (Tabname) ? Tabname : Tabsrc;
return FALSE;
} // end of DefineAM
/***********************************************************************/
/* GetTable: makes a new TDB of the proper type. */
/***********************************************************************/
PTDB PIVOTDEF::GetTable(PGLOBAL g, MODE m)
{
return new(g) TDBPIVOT(this);
} // end of GetTable
/* ------------------------------------------------------------------- */
/***********************************************************************/
/* Implementation of the TDBPIVOT class. */
/***********************************************************************/
TDBPIVOT::TDBPIVOT(PPIVOTDEF tdp) : TDBPRX(tdp)
{
Host = tdp->Host;
Database = tdp->DB;
User = tdp->User;
Pwd = tdp->Pwd;
Port = tdp->Port;
Tabname = tdp->Tabname; // Name of source table
Tabsrc = tdp->Tabsrc; // SQL description of source table
Picol = tdp->Picol; // Pivot column name
Fncol = tdp->Fncol; // Function column name
Function = tdp->Function; // Aggregate function name
Xcolp = NULL; // To the FNCCOL column
//Xresp = NULL; // To the pivot result column
//Rblkp = NULL; // The value block of the pivot column
Fcolp = NULL; // To the function column
Dcolp = NULL; // To the dump column
GBdone = tdp->GBdone;
Accept = tdp->Accept;
Mult = -1; // Estimated table size
N = 0; // The current table index
M = 0; // The occurence rank
FileStatus = 0; // Logical End-of-File
RowFlag = 0; // 0: Ok, 1: Same, 2: Skip
} // end of TDBPIVOT constructor
/***********************************************************************/
/* Prepare the source table Query. */
/***********************************************************************/
bool TDBPIVOT::GetSourceTable(PGLOBAL g)
{
if (Tdbp)
return false; // Already done
if (Tabname) {
PTABDEF defp;
PCOLDEF cdp;
if (InitTable(g))
return true;
else
defp = Tdbp->GetDef();
if (!Fncol) {
for (cdp = defp->GetCols(); cdp; cdp = cdp->GetNext())
if (!Picol || stricmp(Picol, cdp->GetName()))
Fncol = cdp->GetName();
if (!Fncol) {
strcpy(g->Message, MSG(NO_DEF_FNCCOL));
return true;
} // endif Fncol
} // endif Fncol
if (!Picol) {
// Find default Picol as the last one not equal to Fncol
for (cdp = defp->GetCols(); cdp; cdp = cdp->GetNext())
if (!Fncol || stricmp(Fncol, cdp->GetName()))
Picol = cdp->GetName();
if (!Picol) {
strcpy(g->Message, MSG(NO_DEF_PIVOTCOL));
return true;
} // endif Picol
} // endif Picol
if (!GBdone) {
char *colist;
// Locate the suballocated colist (size is not known yet)
*(colist = (char*)PlugSubAlloc(g, NULL, 0)) = 0;
// Make the column list
for (cdp = To_Def->GetCols(); cdp; cdp = cdp->GetNext())
if (!cdp->GetOffset())
strcat(strcat(colist, cdp->GetName()), ", ");
// Add the Pivot column at the end of the list
strcat(colist, Picol);
// Now we know how much was suballocated
PlugSubAlloc(g, NULL, strlen(colist));
// Locate the source string (size is not known yet)
Tabsrc = (char*)PlugSubAlloc(g, NULL, 0);
// Start making the definition
strcat(strcat(strcpy(Tabsrc, "SELECT "), colist), ", ");
// Make it suitable for Pivot by doing the group by
strcat(strcat(Tabsrc, Function), "(");
strcat(strcat(strcat(Tabsrc, Fncol), ") "), Fncol);
strcat(strcat(Tabsrc, " FROM "), Tabname);
strcat(strcat(Tabsrc, " GROUP BY "), colist);
// Now we know how much was suballocated
PlugSubAlloc(g, NULL, strlen(Tabsrc));
} // endif !GBdone
} else if (!Tabsrc) {
strcpy(g->Message, MSG(SRC_TABLE_UNDEF));
return true;
} // endif
if (Tabsrc) {
MYSQLC myc; // MySQL connection class
PQRYRES qryp;
PCOLRES crp;
int w;
// Open a MySQL connection for this table
if (myc.Open(g, Host, Database, User, Pwd, Port))
return true;
// Send the source command to MySQL
if (myc.ExecSQL(g, Tabsrc, &w) == RC_FX) {
myc.Close();
return true;
} // endif Exec
// We must have a storage query to get pivot column values
qryp = myc.GetResult(g);
myc.Close();
Tdbp = new(g) TDBQRS(qryp);
if (!Fncol) {
for (crp = qryp->Colresp; crp; crp = crp->Next)
if (!Picol || stricmp(Picol, crp->Name))
Fncol = crp->Name;
if (!Fncol) {
strcpy(g->Message, MSG(NO_DEF_FNCCOL));
return true;
} // endif Fncol
} // endif Fncol
if (!Picol) {
// Find default Picol as the last one not equal to Fncol
for (crp = qryp->Colresp; crp; crp = crp->Next)
if (!Fncol || stricmp(Fncol, crp->Name))
Picol = crp->Name;
if (!Picol) {
strcpy(g->Message, MSG(NO_DEF_PIVOTCOL));
return true;
} // endif Picol
} // endif Picol
} // endif Tabsrc
// Now it is time to allocate the pivot and function columns
if (!(Fcolp = Tdbp->ColDB(g, Fncol, 0))) {
// Function column not found in table
sprintf(g->Message, MSG(COL_ISNOT_TABLE), Fncol, Tabname);
return true;
} else if (Fcolp->InitValue(g))
return true;
if (!(Xcolp = Tdbp->ColDB(g, Picol, 0))) {
// Pivot column not found in table
sprintf(g->Message, MSG(COL_ISNOT_TABLE), Picol, Tabname);
return true;
} else if (Xcolp->InitValue(g))
return true;
return false;
} // end of GetSourceTable
/***********************************************************************/
/* Allocate source column description block. */
/***********************************************************************/
PCOL TDBPIVOT::MakeCol(PGLOBAL g, PCOLDEF cdp, PCOL cprec, int n)
{
PCOL colp = NULL;
PCOL colp;
//if (stricmp(cdp->GetName(), Picol) && stricmp(cdp->GetName(), Fncol)) {
colp = new(g) COLBLK(cdp, this, n);
if (cdp->GetOffset()) {
colp = new(g) FNCCOL(cdp, this, cprec, n);
// if (((PSRCCOL)colp)->Init(g, this))
// return NULL;
if (cdp->GetOffset() > 1)
Dcolp = colp;
//} else {
// sprintf(g->Message, MSG(NO_MORE_COL), cdp->GetName());
// return NULL;
//} // endif Name
if (cprec) {
colp->SetNext(cprec->GetNext());
cprec->SetNext(colp);
} else {
colp->SetNext(Columns);
Columns = colp;
} // endif cprec
} else
colp = new(g) SRCCOL(cdp, this, cprec, n);
return colp;
} // end of MakeCol
@@ -598,13 +725,6 @@ bool TDBPIVOT::OpenDB(PGLOBAL g)
return FALSE;
} // endif use
/*********************************************************************/
/* Do it here if not done yet (should not be the case). */
/*********************************************************************/
//if (MakePivotColumns(g) < 0)
if (!(Qryp = GetSourceTable(g)))
return TRUE;
if (Mode != MODE_READ) {
/*******************************************************************/
/* Currently PIVOT tables cannot be modified. */
@@ -621,6 +741,30 @@ bool TDBPIVOT::OpenDB(PGLOBAL g)
return TRUE;
} // endif To_Key_Col
/*********************************************************************/
/* Do it here if not done yet (should not be the case). */
/*********************************************************************/
if (GetSourceTable(g))
return TRUE;
/*********************************************************************/
/* Check and initialize the subtable columns. */
/*********************************************************************/
for (PCOL cp = Columns; cp; cp = cp->GetNext())
if (cp->GetAmType() == TYPE_AM_SRC) {
if (((PPRXCOL)cp)->Init(g))
return TRUE;
} else if (cp->GetAmType() == TYPE_AM_FNC)
if (((PFNCCOL)cp)->InitColumn(g))
return TRUE;
/*********************************************************************/
/* Physically open the object table. */
/*********************************************************************/
if (Tdbp->OpenDB(g))
return TRUE;
return FALSE;
} // end of OpenDB
@@ -632,7 +776,6 @@ int TDBPIVOT::ReadDB(PGLOBAL g)
int rc = RC_OK;
bool newrow = FALSE;
PCOL colp;
PVAL vp1, vp2;
if (FileStatus == 2)
return RC_EF;
@@ -652,7 +795,7 @@ int TDBPIVOT::ReadDB(PGLOBAL g)
/*********************************************************************/
do {
if (RowFlag != 1) {
if ((rc = Tqrp->ReadDB(g)) != RC_OK) {
if ((rc = Tdbp->ReadDB(g)) != RC_OK) {
if (FileStatus && rc == RC_EF) {
// A prepared row remains to be sent
FileStatus = 2;
@@ -662,14 +805,16 @@ int TDBPIVOT::ReadDB(PGLOBAL g)
break;
} // endif rc
for (colp = Tqrp->GetColumns(); colp; colp = colp->GetNext())
for (colp = Tdbp->GetColumns(); colp; colp = colp->GetNext())
colp->ReadColumn(g);
for (colp = Columns; colp; colp = colp->GetNext())
if (colp->GetAmType() == TYPE_AM_SRC)
if (FileStatus) {
if (((PSRCCOL)colp)->CompareColumn())
if (((PSRCCOL)colp)->CompareLast()) {
newrow = (RowFlag) ? TRUE : FALSE;
break;
} // endif CompareLast
} else
((PSRCCOL)colp)->SetColumn();
@@ -683,21 +828,21 @@ int TDBPIVOT::ReadDB(PGLOBAL g)
} else
RowFlag = 2;
vp1 = Xcolp->GetValue();
// Look for the column having this header
for (colp = Columns; colp; colp = colp->GetNext())
if (colp->GetAmType() == TYPE_AM_FNC) {
vp2 = ((PFNCCOL)colp)->Hval;
if (!vp1->CompareValue(vp2))
if (((PFNCCOL)colp)->CompareColumn())
break;
} // endif AmType
if (!colp) {
strcpy(g->Message, MSG(NO_MATCH_COL));
return RC_FX;
if (!colp && !(colp = Dcolp)) {
if (!Accept) {
strcpy(g->Message, MSG(NO_MATCH_COL));
return RC_FX;
} else
continue;
} // endif colp
// Set the value of the matching column from the fonction value
@@ -734,6 +879,7 @@ void TDBPIVOT::CloseDB(PGLOBAL g)
//Tdbp->CloseDB(g);
} // end of CloseDB
#if 0
/***********************************************************************/
/* TDBPIVOT: Compare routine for sorting pivot column values. */
/***********************************************************************/
@@ -742,120 +888,81 @@ int TDBPIVOT::Qcompare(int *i1, int *i2)
// TODO: the actual comparison between pivot column result values.
return Rblkp->CompVal(*i1, *i2);
} // end of Qcompare
#endif // 0
// ------------------------ FNCCOL functions ----------------------------
/***********************************************************************/
/* FNCCOL public constructor. */
/***********************************************************************/
FNCCOL::FNCCOL(PCOL col1, PTDBPIVOT tdbp)
: COLBLK(col1, tdbp)
FNCCOL::FNCCOL(PCOLDEF cdp, PTDB tdbp, PCOL cprec, int i)
: COLBLK(cdp, tdbp, i)
{
if (cprec) {
Next = cprec->GetNext();
cprec->SetNext(this);
} else {
Next = tdbp->GetColumns();
tdbp->SetColumns(this);
} // endif cprec
Value = NULL; // We'll get a new one later
Hval = NULL; // The unconverted header value
Hval = NULL; // The unconverted header value
Xcolp = NULL;
} // end of FNCCOL constructor
/***********************************************************************/
/* FNCCOL initialization function. */
/* FNCCOL initialization function. */
/***********************************************************************/
bool FNCCOL::InitColumn(PGLOBAL g, PVAL valp)
bool FNCCOL::InitColumn(PGLOBAL g)
{
char *p, buf[128];
int len;
// Must have its own value block
if (InitValue(g))
return TRUE;
// Convert header value to a null terminated character string
Hval = valp;
p = Hval->GetCharString(buf);
len = strlen(p) + 1;
// Make a value from the column name
Hval = AllocateValue(g, Name, TYPE_STRING);
Hval->SetPrec(1); // Case insensitive
if (len > (signed)sizeof(buf)) {
strcpy(g->Message, MSG(COLNAM_TOO_LONG));
return TRUE;
} // endif buf
// Set the name of the functional pivot column
Name = (PSZ)PlugSubAlloc(g, NULL, len);
strcpy(Name, p);
Xcolp = ((PTDBPIVOT)To_Tdb)->Xcolp;
AddStatus(BUF_READ); // All is done here
return FALSE;
} // end of InitColumn
/***********************************************************************/
/* CompareColumn: Compare column value with source column value. */
/***********************************************************************/
bool FNCCOL::CompareColumn(void)
{
// Compare the unconverted values
return Hval->IsEqual(Xcolp->GetValue(), false);
} // end of CompareColumn
// ------------------------ SRCCOL functions ----------------------------
#if 0
/***********************************************************************/
/* SRCCOL public constructor. */
/***********************************************************************/
SRCCOL::SRCCOL(PCOLDEF cdp, PTDBPIVOT tdbp, int n)
: COLBLK(cdp, tdbp, n)
SRCCOL::SRCCOL(PCOLDEF cdp, PTDB tdbp, PCOL cprec, int n)
: PRXCOL(cdp, tdbp, cprec, n)
{
// Set additional SRC access method information for column.
Colp = NULL;
Cnval = NULL;
//Cnval = NULL;
} // end of SRCCOL constructor
#endif // 0
/***********************************************************************/
/* SRCCOL public constructor. */
/***********************************************************************/
SRCCOL::SRCCOL(PCOL cp, PTDBPIVOT tdbp, int n)
: COLBLK(cp, tdbp)
{
Index = n;
// Set additional SRC access method information for column.
Colp = (PQRSCOL)cp;
// Don't share Value with the source column so we can compare
Cnval = Value = NULL;
} // end of SRCCOL constructor
#if 0
/***********************************************************************/
/* SRCCOL constructor used for copying columns. */
/* tdbp is the pointer to the new table descriptor. */
/***********************************************************************/
SRCCOL::SRCCOL(SRCCOL *col1, PTDB tdbp) : COLBLK(col1, tdbp)
{
Colp = col1->Colp;
} // end of SRCCOL copy constructor
#endif // 0
/***********************************************************************/
/* Initialize the column as pointing to the source column. */
/***********************************************************************/
bool SRCCOL::Init(PGLOBAL g, PTDBPIVOT tdbp)
bool SRCCOL::Init(PGLOBAL g)
{
// Currently we ignore the type of the create table column
bool conv = FALSE;
if (PRXCOL::Init(g))
return true;
#if 0
if (!Colp) {
// Column was defined in the Create Table statement
if (!(Colp = tdbp->ColDB(g, Name, 0)))
return TRUE;
// We can have a conversion problem converting from numeric to
// character because GetCharValue does not exist for numeric types.
conv = (IsTypeChar(Buf_Type) && IsTypeNum(Colp->GetResultType()));
} else
#endif // 0
conv = FALSE;
if (InitValue(g))
return TRUE;
//if (conv)
// Cnval = AllocateValue(g, Colp->GetValue());
//else
Cnval = Value;
// Will contain the last value
//Cnval = AllocateValue(g, Value, TYPE_VOID);
AddStatus(BUF_READ); // All is done here
return FALSE;
return false;
} // end of SRCCOL constructor
/***********************************************************************/
@@ -863,25 +970,18 @@ bool SRCCOL::Init(PGLOBAL g, PTDBPIVOT tdbp)
/***********************************************************************/
void SRCCOL::SetColumn(void)
{
#if defined(_DEBUG)
Cnval->SetValue_pval(Colp->GetValue(), TRUE);
#else
Cnval->SetValue_pval(Colp->GetValue());
#endif // _DEBUG
if (Value != Cnval)
// Convert value
Value->SetValue_pval(Cnval);
//Cnval->SetValue_pval(Value);
Value->SetValue_pval(To_Val);
} // end of SetColumn
/***********************************************************************/
/* SetColumn: Compare column value with source column value. */
/***********************************************************************/
bool SRCCOL::CompareColumn(void)
bool SRCCOL::CompareLast(void)
{
// Compare the unconverted values
return Cnval->CompareValue(Colp->GetValue());
//return !Cnval->IsEqual(Colp->GetValue(), true);
return !Value->IsEqual(To_Val, true);
} // end of CompareColumn
@@ -1019,18 +1119,8 @@ bool TDBQRS::OpenDB(PGLOBAL g)
CurPos = -1;
if (Use == USE_OPEN) {
/*******************************************************************/
/* Table already open, just replace it at its beginning. */
/*******************************************************************/
if (To_Kindex)
/*****************************************************************/
/* Table is to be accessed through a sorted index table. */
/*****************************************************************/
To_Kindex->Reset();
if (Use == USE_OPEN)
return FALSE;
} // endif use
/*********************************************************************/
/* Open (retrieve data from) the query if not already open. */
@@ -1059,6 +1149,7 @@ int TDBQRS::ReadDB(PGLOBAL g)
htrc("QRS ReadDB: R%d CurPos=%d key=%p link=%p Kindex=%p\n",
GetTdb_No(), CurPos, To_Key_Col, To_Link, To_Kindex);
#if 0
if (To_Kindex) {
/*******************************************************************/
/* Reading is by an index table. */
@@ -1086,6 +1177,7 @@ int TDBQRS::ReadDB(PGLOBAL g)
htrc("Position is now %d\n", CurPos);
} else
#endif // 0
/*******************************************************************/
/* !To_Kindex ---> sequential reading */
/*******************************************************************/
@@ -1117,10 +1209,10 @@ int TDBQRS::DeleteDB(PGLOBAL g, int irc)
/***********************************************************************/
void TDBQRS::CloseDB(PGLOBAL g)
{
if (To_Kindex) {
To_Kindex->Close();
To_Kindex = NULL;
} // endif
//if (To_Kindex) {
// To_Kindex->Close();
// To_Kindex = NULL;
// } // endif
if (trace)
htrc("Qryres CloseDB");