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Overview
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SHA1: |
3e1a3f68d7457ff708222a3448404b593f018fc2 |
User & Date: |
drh
2014-02-04 15:55:25.100 |
Context
2014-02-04
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20:46 |
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(check-in: 65d5dcddbd user: drh tags: trunk)
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15:55 |
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(check-in: 3e1a3f68d7 user: drh tags: trunk)
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2014-02-03
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17:04 |
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(check-in: b60cc11ef7 user: drh tags: trunk)
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Changes
Changes to src/sqliteInt.h.
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int iRangeReg; /* First register in temporary register block */
int nErr; /* Number of errors seen */
int nTab; /* Number of previously allocated VDBE cursors */
int nMem; /* Number of memory cells used so far */
int nSet; /* Number of sets used so far */
int nOnce; /* Number of OP_Once instructions so far */
int nOpAlloc; /* Number of slots allocated for Vdbe.aOp[] */
int nLabel; /* Number of labels used */
int *aLabel; /* Space to hold the labels */
int iFixedOp; /* Never back out opcodes iFixedOp-1 or earlier */
int ckBase; /* Base register of data during check constraints */
int iPartIdxTab; /* Table corresponding to a partial index */
int iCacheLevel; /* ColCache valid when aColCache[].iLevel<=iCacheLevel */
int iCacheCnt; /* Counter used to generate aColCache[].lru values */
int nLabel; /* Number of labels used */
int *aLabel; /* Space to hold the labels */
struct yColCache {
int iTable; /* Table cursor number */
int iColumn; /* Table column number */
i16 iColumn; /* Table column number */
u8 tempReg; /* iReg is a temp register that needs to be freed */
int iLevel; /* Nesting level */
int iReg; /* Reg with value of this column. 0 means none. */
int lru; /* Least recently used entry has the smallest value */
} aColCache[SQLITE_N_COLCACHE]; /* One for each column cache entry */
ExprList *pConstExpr;/* Constant expressions */
Token constraintName;/* Name of the constraint currently being parsed */
yDbMask writeMask; /* Start a write transaction on these databases */
yDbMask cookieMask; /* Bitmask of schema verified databases */
int cookieGoto; /* Address of OP_Goto to cookie verifier subroutine */
int cookieValue[SQLITE_MAX_ATTACHED+2]; /* Values of cookies to verify */
int regRowid; /* Register holding rowid of CREATE TABLE entry */
int regRoot; /* Register holding root page number for new objects */
int nMaxArg; /* Max args passed to user function by sub-program */
Token constraintName;/* Name of the constraint currently being parsed */
#ifndef SQLITE_OMIT_SHARED_CACHE
int nTableLock; /* Number of locks in aTableLock */
TableLock *aTableLock; /* Required table locks for shared-cache mode */
#endif
AutoincInfo *pAinc; /* Information about AUTOINCREMENT counters */
/* Information used while coding trigger programs. */
Parse *pToplevel; /* Parse structure for main program (or NULL) */
Table *pTriggerTab; /* Table triggers are being coded for */
int addrCrTab; /* Address of OP_CreateTable opcode on CREATE TABLE */
int addrSkipPK; /* Address of instruction to skip PRIMARY KEY index */
u32 nQueryLoop; /* Est number of iterations of a query (10*log2(N)) */
u32 oldmask; /* Mask of old.* columns referenced */
u32 newmask; /* Mask of new.* columns referenced */
u8 eTriggerOp; /* TK_UPDATE, TK_INSERT or TK_DELETE */
u8 eOrconf; /* Default ON CONFLICT policy for trigger steps */
u8 disableTriggers; /* True to disable triggers */
/************************************************************************
/* Above is constant between recursions. Below is reset before and after
** each recursion */
** Above is constant between recursions. Below is reset before and after
** each recursion. The boundary between these two regions is determined
** using offsetof(Parse,nVar) so the nVar field must be the first field
** in the recursive region.
************************************************************************/
int nVar; /* Number of '?' variables seen in the SQL so far */
int nzVar; /* Number of available slots in azVar[] */
u8 iPkSortOrder; /* ASC or DESC for INTEGER PRIMARY KEY */
u8 bFreeWith; /* True if pWith should be freed with parser */
u8 explain; /* True if the EXPLAIN flag is found on the query */
#ifndef SQLITE_OMIT_VIRTUALTABLE
u8 declareVtab; /* True if inside sqlite3_declare_vtab() */
int nVtabLock; /* Number of virtual tables to lock */
#endif
int nAlias; /* Number of aliased result set columns */
int nHeight; /* Expression tree height of current sub-select */
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#ifndef SQLITE_OMIT_VIRTUALTABLE
Token sArg; /* Complete text of a module argument */
Table **apVtabLock; /* Pointer to virtual tables needing locking */
#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 */
u8 bFreeWith; /* True if pWith should be freed with parser */
};
/*
** Return true if currently inside an sqlite3_declare_vtab() call.
*/
#ifdef SQLITE_OMIT_VIRTUALTABLE
#define IN_DECLARE_VTAB 0
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