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Commit 2b60525d authored by Olivier Bertrand's avatar Olivier Bertrand
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- Add support to NULL values. This concern the MYSQL 

  and ODBC table types. Not supported yet for indexes.

modified:
  storage/connect/colblk.cpp
  storage/connect/colblk.h
  storage/connect/connect.cc
  storage/connect/ha_connect.cc
  storage/connect/tabmysql.cpp
  storage/connect/tabodbc.cpp
  storage/connect/valblk.cpp
  storage/connect/valblk.h
  storage/connect/value.cpp
  storage/connect/value.h
  storage/connect/xindex.cpp
parent a769cb2f
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Showing with 571 additions and 249 deletions
storage/connect/colblk.cpp
View file @ 2b60525d
/************* Colblk C++ Functions Source Code File (.CPP) ************/
/* Name: COLBLK.CPP Version 1.9 */
/* Name: COLBLK.CPP Version 2.0 */
/* */
/* (C) Copyright to the author Olivier BERTRAND 1998-2012 */
/* (C) Copyright to the author Olivier BERTRAND 1998-2013 */
/* */
/* This file contains the COLBLK class functions. */
/***********************************************************************/
......@@ -49,6 +49,7 @@ COLBLK::COLBLK(PCOLDEF cdp, PTDB tdbp, int i)
} // endif cdp
To_Tdb = tdbp;
Nullable = false;
Status = BUF_NO;
//Value = NULL; done in XOBJECT constructor
To_Kcol = NULL;
......@@ -190,6 +191,7 @@ bool COLBLK::InitValue(PGLOBAL g)
return true;
Status = BUF_READY;
Value->SetNullable(Nullable);
#ifdef DEBTRACE
htrc(" colp=%p type=%d value=%p coluse=%.4X status=%.4X\n",
......
storage/connect/colblk.h
View file @ 2b60525d
/*************** Colblk H Declares Source Code File (.H) ***************/
/* Name: COLBLK.H Version 1.5 */
/* Name: COLBLK.H Version 1.6 */
/* */
/* (C) Copyright to the author Olivier BERTRAND 2005-2012 */
/* (C) Copyright to the author Olivier BERTRAND 2005-2013 */
/* */
/* This file contains the COLBLK and derived classes declares. */
/***********************************************************************/
......@@ -53,6 +53,8 @@ class DllExport COLBLK : public XOBJECT {
PSZ GetDomain(void) {return (Cdp) ? Cdp->Decode : NULL;}
PSZ GetDesc(void) {return (Cdp) ? Cdp->Desc : NULL;}
PSZ GetFmt(void) {return (Cdp) ? Cdp->Fmt : NULL;}
bool IsNullable(void) {return Nullable;}
void SetNullable(bool b) {Nullable = b;}
// Methods
virtual void Reset(void);
......@@ -81,6 +83,7 @@ class DllExport COLBLK : public XOBJECT {
PCOLDEF Cdp; // To column definition block
PTDB To_Tdb; // Points to Table Descriptor Block
PXCOL To_Kcol; // Points to Xindex matching column
bool Nullable; // True if nullable
int Index; // Column number in table
int Opt; // Cluster/sort information
int Buf_Type; // Data type
......
storage/connect/connect.cc
View file @ 2b60525d
......@@ -273,8 +273,10 @@ bool CntOpenTable(PGLOBAL g, PTDB tdbp, MODE mode, char *c1, char *c2,
cp= new(g) COLUMN(p + 1);
cp->SetTo_Table(tdbp->GetTable());
colp= ((PTDBASE)tdbp)->InsertSpcBlk(g, cp);
} else
colp= tdbp->ColDB(g, p, 0);
} else {
colp= tdbp->ColDB(g, p + 1, 0);
colp->SetNullable(*p == '1');
} // endif p
if (!colp) {
sprintf(g->Message, "Column %s not found in %s", p, tdbp->GetName());
......@@ -338,7 +340,8 @@ bool CntOpenTable(PGLOBAL g, PTDB tdbp, MODE mode, char *c1, char *c2,
utp->ColDB(g, NULL, 0);
else for (p= c2; *p; p+= n) {
// Allocate only used column blocks
utp->ColDB(g, p, 0);
colp= utp->ColDB(g, p + 1, 0);
colp->SetNullable(*p == '1');
n= strlen(p) + 1;
} // endfor p
......
storage/connect/ha_connect.cc
View file @ 2b60525d
......@@ -1211,7 +1211,7 @@ int ha_connect::GetColNameLen(Field *fp)
if (fop && fop->special)
n= strlen(fop->special) + 1;
else
n= strlen(fp->field_name);
n= strlen(fp->field_name) + 1;
return n;
} // end of GetColNameLen
......@@ -1238,7 +1238,7 @@ void ha_connect::AddColName(char *cp, Field *fp)
// The prefix * mark the column as "special"
strcat(strcpy(cp, "*"), strupr(fop->special));
else
strcpy(cp, (char*)fp->field_name);
strcat(strcpy(cp, fp->maybe_null() ? "1" : "0"), (char*)fp->field_name);
} // end of AddColName
......@@ -1456,6 +1456,7 @@ int ha_connect::MakeRecord(char *buf)
value= colp->GetValue();
// All this could be better optimized
if (!value->IsNull()) {
switch (value->GetType()) {
case TYPE_DATE:
if (!sdval)
......@@ -1500,6 +1501,10 @@ int ha_connect::MakeRecord(char *buf)
DBUG_PRINT("MakeRecord", (value->GetCharString(val)));
} // endif store
fp->set_notnull();
} else
fp->set_null();
} // endif bitmap
} // endfor field
......@@ -1552,7 +1557,12 @@ int ha_connect::ScanRecord(PGLOBAL g, uchar *buf)
// This is a used field, fill the value from the row buffer
// All this could be better optimized
switch (value->GetType()) {
if (fp->is_null()) {
if (colp->IsNullable())
value->SetNull(true);
value->Reset();
} else switch (value->GetType()) {
case TYPE_FLOAT:
value->SetValue(fp->val_real());
break;
......@@ -3306,7 +3316,7 @@ bool ha_connect::add_fields(THD *thd, void *alt_info,
alter_info->create_list.push_back(new_field);
//lex->last_field=new_field;
DBUG_RETURN(0);
}
} // end of add_fields
/**
@brief
......
storage/connect/tabmysql.cpp
View file @ 2b60525d
......@@ -109,14 +109,15 @@ MYSQLDEF::MYSQLDEF(void)
/* An Example: */
/* */
/* CREATE TABLE t1 (id int(32)) */
/* ENGINE="FEDERATEDX" */
/* ENGINE="CONNECT" TABLE_TYPE="MYSQL" */
/* CONNECTION="mysql://joe:pwd@192.168.1.111:9308/dbname/tabname"; */
/* */
/* CREATE TABLE t2 ( */
/* id int(4) NOT NULL auto_increment, */
/* name varchar(32) NOT NULL, */
/* PRIMARY KEY(id) */
/* ) ENGINE="FEDERATEDX" CONNECTION="my_conn"; (NIY) */
/* ) ENGINE="CONNECT" TABLE_TYPE="MYSQL" */
/* CONNECTION="my_conn"; (NIY) */
/* */
/* 'password' and 'port' are both optional. */
/* */
......@@ -1040,8 +1041,12 @@ void MYSQLCOL::ReadColumn(PGLOBAL g)
if ((buf = ((PTDBMY)To_Tdb)->Myc.GetCharField(Rank)))
Value->SetValue_char(buf, Long);
else
else {
if (Nullable)
Value->SetNull(true);
Value->Reset(); // Null value
} // endelse
} // end of ReadColumn
......
storage/connect/tabodbc.cpp
View file @ 2b60525d
......@@ -796,9 +796,13 @@ void ODBCCOL::ReadColumn(PGLOBAL g)
if (StrLen[n] == SQL_NULL_DATA) {
// Null value
if (Nullable)
Value->SetNull(true);
Value->Reset();
return;
} // endif StrLen
} else
Value->SetNull(false);
if (Bufp && tdbp->Rows)
if (Buf_Type == TYPE_DATE)
......
storage/connect/valblk.cpp
View file @ 2b60525d
This diff is collapsed.
storage/connect/valblk.h
View file @ 2b60525d
......@@ -27,8 +27,7 @@ class VALBLK : public BLOCK {
//friend void SemColData(PGLOBAL g, PSEM semp);
public:
// Constructors
VALBLK(void *mp, int type, int nval)
{Blkp = mp; Type = type; Nval = nval; Check = true;}
VALBLK(void *mp, int type, int nval);
// Implementation
int GetNval(void) {return Nval;}
......@@ -37,6 +36,12 @@ class VALBLK : public BLOCK {
void SetValPointer(void *mp) {Blkp = mp;}
int GetType(void) {return Type;}
void SetCheck(bool b) {Check = b;}
void MoveNull(int i, int j)
{if (To_Nulls) To_Nulls[j] = To_Nulls[j];}
virtual void SetNull(int n, bool b)
{if (To_Nulls) {To_Nulls[n] = (b) ? '*' : 0;}}
virtual bool IsNull(int n) {return To_Nulls && To_Nulls[n];}
virtual void SetNullable(bool b);
virtual void Init(PGLOBAL g, bool check) = 0;
virtual int GetVlen(void) = 0;
virtual PSZ GetCharValue(int n);
......@@ -56,11 +61,13 @@ class VALBLK : public BLOCK {
virtual void SetValue(longlong lval, int n) {assert(false);}
virtual void SetValue(PSZ sp, int n) {assert(false);}
virtual void SetValue(PVAL valp, int n) = 0;
virtual void SetValue(PVBLK pv, int n1, int n2) = 0;
#if 0
virtual void SetMin(PVAL valp, int n) = 0;
virtual void SetMax(PVAL valp, int n) = 0;
virtual void SetValue(PVBLK pv, int n1, int n2) = 0;
virtual void SetValues(PVBLK pv, int i, int n) = 0;
virtual void AddMinus1(PVBLK pv, int n1, int n2) {assert(false);}
#endif // 0
virtual void Move(int i, int j) = 0;
virtual int CompVal(PVAL vp, int n) = 0;
virtual int CompVal(int i1, int i2) = 0;
......@@ -80,10 +87,12 @@ class VALBLK : public BLOCK {
// Members
PGLOBAL Global; // Used for messages and allocation
char *To_Nulls; // Null values array
void *Blkp; // To value block
int Type; // Type of individual values
int Nval; // Max number of values in block
bool Check; // If true SetValue types must match
bool Nullable; // True if values can be null
}; // end of class VALBLK
/***********************************************************************/
......@@ -109,10 +118,12 @@ class CHRBLK : public VALBLK {
// Methods
virtual void SetValue(PSZ sp, int n);
virtual void SetValue(PVAL valp, int n);
virtual void SetValue(PVBLK pv, int n1, int n2);
#if 0
virtual void SetMin(PVAL valp, int n);
virtual void SetMax(PVAL valp, int n);
virtual void SetValue(PVBLK pv, int n1, int n2);
virtual void SetValues(PVBLK pv, int k, int n);
#endif // 0
virtual void Move(int i, int j);
virtual int CompVal(PVAL vp, int n);
virtual int CompVal(int i1, int i2);
......@@ -141,6 +152,9 @@ class STRBLK : public VALBLK {
STRBLK(PGLOBAL g, void *mp, int size);
// Implementation
virtual void SetNull(int n, bool b) {if (b) {Strp[n] = NULL;}}
virtual bool IsNull(int n) {return Strp[n] == NULL;}
virtual void SetNullable(bool b) {} // Always nullable
virtual void Init(PGLOBAL g, bool check);
virtual int GetVlen(void) {return sizeof(PSZ);}
virtual PSZ GetCharValue(int n) {return Strp[n];}
......@@ -153,10 +167,12 @@ class STRBLK : public VALBLK {
// Methods
virtual void SetValue(PSZ sp, int n);
virtual void SetValue(PVAL valp, int n);
virtual void SetValue(PVBLK pv, int n1, int n2);
#if 0
virtual void SetMin(PVAL valp, int n);
virtual void SetMax(PVAL valp, int n);
virtual void SetValue(PVBLK pv, int n1, int n2);
virtual void SetValues(PVBLK pv, int k, int n);
#endif // 0
virtual void Move(int i, int j);
virtual int CompVal(PVAL vp, int n);
virtual int CompVal(int i1, int i2);
......@@ -190,15 +206,20 @@ class SHRBLK : public VALBLK {
// Methods
virtual void SetValue(PSZ sp, int n);
virtual void SetValue(short sval, int n) {Shrp[n] = sval;}
virtual void SetValue(int lval, int n) {Shrp[n] = (short)lval;}
virtual void SetValue(longlong lval, int n) {Shrp[n] = (short)lval;}
virtual void SetValue(short sval, int n)
{Shrp[n] = sval; SetNull(n, false);}
virtual void SetValue(int lval, int n)
{Shrp[n] = (short)lval; SetNull(n, false);}
virtual void SetValue(longlong lval, int n)
{Shrp[n] = (short)lval; SetNull(n, false);}
virtual void SetValue(PVAL valp, int n);
virtual void SetValue(PVBLK pv, int n1, int n2);
#if 0
virtual void SetMin(PVAL valp, int n);
virtual void SetMax(PVAL valp, int n);
virtual void SetValue(PVBLK pv, int n1, int n2);
virtual void SetValues(PVBLK pv, int k, int n);
virtual void AddMinus1(PVBLK pv, int n1, int n2);
#endif // 0
virtual void Move(int i, int j);
virtual int CompVal(PVAL vp, int n);
virtual int CompVal(int i1, int i2);
......@@ -232,15 +253,20 @@ class LNGBLK : public VALBLK {
// Methods
virtual void SetValue(PSZ sp, int n);
virtual void SetValue(short sval, int n) {Lngp[n] = (int)sval;}
virtual void SetValue(int lval, int n) {Lngp[n] = lval;}
virtual void SetValue(longlong lval, int n) {Lngp[n] = (int)lval;}
virtual void SetValue(short sval, int n)
{Lngp[n] = (int)sval; SetNull(n, false);}
virtual void SetValue(int lval, int n)
{Lngp[n] = lval; SetNull(n, false);}
virtual void SetValue(longlong lval, int n)
{Lngp[n] = (int)lval; SetNull(n, false);}
virtual void SetValue(PVAL valp, int n);
virtual void SetValue(PVBLK pv, int n1, int n2);
#if 0
virtual void SetMin(PVAL valp, int n);
virtual void SetMax(PVAL valp, int n);
virtual void SetValue(PVBLK pv, int n1, int n2);
virtual void SetValues(PVBLK pv, int k, int n);
virtual void AddMinus1(PVBLK pv, int n1, int n2);
#endif // 0
virtual void Move(int i, int j);
virtual int CompVal(PVAL vp, int n);
virtual int CompVal(int i1, int i2);
......@@ -293,15 +319,20 @@ class BIGBLK : public VALBLK {
// Methods
virtual void SetValue(PSZ sp, int n);
virtual void SetValue(short sval, int n) {Lngp[n] = (longlong)sval;}
virtual void SetValue(int lval, int n) {Lngp[n] = (longlong)lval;}
virtual void SetValue(longlong lval, int n) {Lngp[n] = lval;}
virtual void SetValue(short sval, int n)
{Lngp[n] = (longlong)sval; SetNull(n, false);}
virtual void SetValue(int lval, int n)
{Lngp[n] = (longlong)lval; SetNull(n, false);}
virtual void SetValue(longlong lval, int n)
{Lngp[n] = lval; SetNull(n, false);}
virtual void SetValue(PVAL valp, int n);
virtual void SetValue(PVBLK pv, int n1, int n2);
#if 0
virtual void SetMin(PVAL valp, int n);
virtual void SetMax(PVAL valp, int n);
virtual void SetValue(PVBLK pv, int n1, int n2);
virtual void SetValues(PVBLK pv, int k, int n);
virtual void AddMinus1(PVBLK pv, int n1, int n2);
#endif // 0
virtual void Move(int i, int j);
virtual int CompVal(PVAL vp, int n);
virtual int CompVal(int i1, int i2);
......@@ -337,10 +368,12 @@ class DBLBLK : public VALBLK {
// Methods
virtual void SetValue(PSZ sp, int n);
virtual void SetValue(PVAL valp, int n);
virtual void SetValue(PVBLK pv, int n1, int n2);
#if 0
virtual void SetMin(PVAL valp, int n);
virtual void SetMax(PVAL valp, int n);
virtual void SetValue(PVBLK pv, int n1, int n2);
virtual void SetValues(PVBLK pv, int k, int n);
#endif // 0
virtual void Move(int i, int j);
virtual int CompVal(PVAL vp, int n);
virtual int CompVal(int i1, int i2);
......
storage/connect/value.cpp
View file @ 2b60525d
This diff is collapsed.
storage/connect/value.h
View file @ 2b60525d
This diff is collapsed.
storage/connect/xindex.cpp
View file @ 2b60525d
......@@ -2861,6 +2861,12 @@ bool KXYCOL::Init(PGLOBAL g, PCOL colp, int n, bool sm, int kln)
{
int len = colp->GetLength(), prec = colp->GetPrecision();
// Currently no indexing on NULL columns
if (colp->IsNullable()) {
sprintf(g->Message, "Cannot index nullable column %s", colp->GetName());
return true;
} // endif nullable
if (kln && len > kln && colp->GetResultType() == TYPE_STRING) {
len = kln;
Prefix = true;
......
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