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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 18:07:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 18:07:14 +0000
commita175314c3e5827eb193872241446f2f8f5c9d33c (patch)
treecd3d60ca99ae00829c52a6ca79150a5b6e62528b /storage/connect/taboccur.h
parentInitial commit. (diff)
downloadmariadb-10.5-a175314c3e5827eb193872241446f2f8f5c9d33c.tar.xz
mariadb-10.5-a175314c3e5827eb193872241446f2f8f5c9d33c.zip
Adding upstream version 1:10.5.12.upstream/1%10.5.12upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'storage/connect/taboccur.h')
-rw-r--r--storage/connect/taboccur.h142
1 files changed, 142 insertions, 0 deletions
diff --git a/storage/connect/taboccur.h b/storage/connect/taboccur.h
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+// TABOCCUR.H Olivier Bertrand 2013
+// Defines the OCCUR tables
+
+#include "tabutil.h"
+
+typedef class OCCURDEF *POCCURDEF;
+typedef class TDBOCCUR *PTDBOCCUR;
+typedef class OCCURCOL *POCCURCOL;
+typedef class RANKCOL *PRANKCOL;
+
+/* -------------------------- OCCUR classes -------------------------- */
+
+/***********************************************************************/
+/* OCCUR: Table that provides a view of a source table where the */
+/* contain of several columns of the source table is placed in only */
+/* one column, the OCCUR column, this resulting into several rows. */
+/***********************************************************************/
+
+/***********************************************************************/
+/* OCCUR table. */
+/***********************************************************************/
+class OCCURDEF : public PRXDEF { /* Logical table description */
+ friend class TDBOCCUR;
+ public:
+ // Constructor
+ OCCURDEF(void) {Pseudo = 3; Colist = Xcol = NULL;}
+
+ // Implementation
+ virtual const char *GetType(void) {return "OCCUR";}
+
+ // Methods
+ virtual bool DefineAM(PGLOBAL g, LPCSTR am, int poff);
+ virtual PTDB GetTable(PGLOBAL g, MODE m);
+
+ protected:
+ // Members
+ char *Colist; /* The source column list */
+ char *Xcol; /* The multiple occurrence column */
+ char *Rcol; /* The rank column */
+ }; // end of OCCURDEF
+
+/***********************************************************************/
+/* This is the class declaration for the OCCUR table. */
+/***********************************************************************/
+class TDBOCCUR : public TDBPRX {
+ friend class OCCURCOL;
+ friend class RANKCOL;
+ public:
+ // Constructor
+ TDBOCCUR(POCCURDEF tdp);
+
+ // Implementation
+ virtual AMT GetAmType(void) {return TYPE_AM_OCCUR;}
+ void SetTdbp(PTDBASE tdbp) {Tdbp = tdbp;}
+
+ // Methods
+ virtual void ResetDB(void) {N = 0; Tdbp->ResetDB();}
+ virtual int RowNumber(PGLOBAL g, bool b = FALSE);
+ bool MakeColumnList(PGLOBAL g);
+ bool ViewColumnList(PGLOBAL g);
+
+ // Database routines
+ virtual PCOL MakeCol(PGLOBAL g, PCOLDEF cdp, PCOL cprec, int n);
+ virtual bool InitTable(PGLOBAL g);
+ virtual int GetMaxSize(PGLOBAL g);
+ virtual bool OpenDB(PGLOBAL g);
+ virtual int ReadDB(PGLOBAL g);
+
+ protected:
+ // Members
+ LPCSTR Tabname; // Name of source table
+ char *Colist; // Source column list
+ char *Xcolumn; // Occurence column name
+ char *Rcolumn; // Rank column name
+ POCCURCOL Xcolp; // To the OCCURCOL column
+ PCOL *Col; // To source multiple columns
+ int Mult; // Multiplication factor
+ int N; // The current table index
+ int M; // The occurrence rank
+ BYTE RowFlag; // 0: Ok, 1: Same, 2: Skip
+ }; // end of class TDBOCCUR
+
+/***********************************************************************/
+/* Class OCCURCOL: for the multiple occurrence column. */
+/***********************************************************************/
+class OCCURCOL : public COLBLK {
+ public:
+ // Constructors
+ OCCURCOL(PCOLDEF cdp, PTDBOCCUR tdbp, int n);
+
+ // Implementation
+ virtual int GetAmType(void) {return TYPE_AM_OCCUR;}
+ int GetI(void) {return I;}
+
+ // Methods
+ virtual void Reset(void) {} // Evaluated only by TDBOCCUR
+ virtual void ReadColumn(PGLOBAL g);
+ void Xreset(void) {I = 0;};
+
+ protected:
+ // Default constructor not to be used
+ OCCURCOL(void) {}
+
+ // Members
+ int I;
+ }; // end of class OCCURCOL
+
+/***********************************************************************/
+/* Class RANKCOL: for the multiple occurrence column ranking. */
+/***********************************************************************/
+class RANKCOL : public COLBLK {
+ public:
+ // Constructors
+ RANKCOL(PCOLDEF cdp, PTDBOCCUR tdbp, int n) : COLBLK(cdp, tdbp, n) {}
+
+ // Implementation
+ virtual int GetAmType(void) {return TYPE_AM_OCCUR;}
+
+ // Methods
+ virtual void ReadColumn(PGLOBAL g);
+
+ protected:
+ // Default constructor not to be used
+ RANKCOL(void) {}
+
+ // Members
+ }; // end of class RANKCOL
+
+/***********************************************************************/
+/* Definition of class XCOLDEF. */
+/* This class purpose is just to access COLDEF protected items! */
+/***********************************************************************/
+class XCOLDEF: public COLDEF {
+ friend class TDBOCCUR;
+ }; // end of class XCOLDEF
+
+
+bool OcrColumns(PGLOBAL g, PQRYRES qrp, const char *col,
+ const char *ocr, const char *rank);
+
+bool OcrSrcCols(PGLOBAL g, PQRYRES qrp, const char *col,
+ const char *ocr, const char *rank);