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Add code to handle non-recursive CTEs in the same way as SQL views.

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FossilOrigin-Name: a26f399ba485e8127c276c5f103ec6c555e11734
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dan
2014-01-13 15:12:23 +00:00
parent 7d562dbe02
commit 4e9119d9e8
12 changed files with 345 additions and 37 deletions
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14
src/sqliteInt.h
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@@ -2144,6 +2144,7 @@ struct Select {
Select *pRightmost; /* Right-most select in a compound select statement */
Expr *pLimit; /* LIMIT expression. NULL means not used. */
Expr *pOffset; /* OFFSET expression. NULL means not used. */
With *pWith; /* WITH clause attached to this select. Or NULL. */
};
/*
@@ -2365,6 +2366,8 @@ struct Parse {
#endif
Table *pZombieTab; /* List of Table objects to delete after code gen */
TriggerPrg *pTriggerPrg; /* Linked list of coded triggers */
With *pWith; /* Current WITH clause, or NULL */
struct Cte *pCte; /* Current CTE, or NULL */
};
/*
@@ -2638,10 +2641,12 @@ int sqlite3WalkSelectFrom(Walker*, Select*);
*/
struct With {
int nCte; /* Number of CTEs */
With *pOuter; /* Containing WITH clause, or NULL */
struct Cte {
const char *zName; /* Name of this CTE */
IdList *pCol; /* List of explicit column names, or NULL */
char *zName; /* Name of this CTE */
ExprList *pCols; /* List of explicit column names, or NULL */
Select *pSelect; /* The contents of the CTE */
struct Cte *pOuterCte;
} a[1];
};
@@ -3344,8 +3349,11 @@ const char *sqlite3JournalModename(int);
int sqlite3WalDefaultHook(void*,sqlite3*,const char*,int);
#endif
#ifndef SQLITE_OMIT_CTE
With *sqlite3WithAdd(Parse*,With*,Token*,IdList*,Select*);
With *sqlite3WithAdd(Parse*,With*,Token*,ExprList*,Select*);
void sqlite3WithDelete(sqlite3*,With*);
void sqlite3WithPush(Parse*, With*);
#else
#define sqlite3WithPush(x,y)
#endif
/* Declarations for functions in fkey.c. All of these are replaced by