diff options
Diffstat (limited to 'src/sqliteInt.h')
| -rw-r--r-- | src/sqliteInt.h | 303 |
1 files changed, 159 insertions, 144 deletions
diff --git a/src/sqliteInt.h b/src/sqliteInt.h index 9e27654..953850e 100644 --- a/src/sqliteInt.h +++ b/src/sqliteInt.h @@ -126,6 +126,14 @@ #endif /* +** Powersafe overwrite is on by default. But can be turned off using +** the -DSQLITE_POWERSAFE_OVERWRITE=0 command-line option. +*/ +#ifndef SQLITE_POWERSAFE_OVERWRITE +# define SQLITE_POWERSAFE_OVERWRITE 1 +#endif + +/* ** The SQLITE_DEFAULT_MEMSTATUS macro must be defined as either 0 or 1. ** It determines whether or not the features related to ** SQLITE_CONFIG_MEMSTATUS are available by default or not. This value can @@ -346,7 +354,7 @@ */ #define SQLITE_MAX_FILE_FORMAT 4 #ifndef SQLITE_DEFAULT_FILE_FORMAT -# define SQLITE_DEFAULT_FILE_FORMAT 1 +# define SQLITE_DEFAULT_FILE_FORMAT 4 #endif /* @@ -553,9 +561,13 @@ struct BusyHandler { /* ** The following value as a destructor means to use sqlite3DbFree(). -** This is an internal extension to SQLITE_STATIC and SQLITE_TRANSIENT. +** The sqlite3DbFree() routine requires two parameters instead of the +** one parameter that destructors normally want. So we have to introduce +** this magic value that the code knows to handle differently. Any +** pointer will work here as long as it is distinct from SQLITE_STATIC +** and SQLITE_TRANSIENT. */ -#define SQLITE_DYNAMIC ((sqlite3_destructor_type)sqlite3DbFree) +#define SQLITE_DYNAMIC ((sqlite3_destructor_type)sqlite3MallocSize) /* ** When SQLITE_OMIT_WSD is defined, it means that the target platform does @@ -785,35 +797,16 @@ struct FuncDefHash { /* ** Each database connection is an instance of the following structure. -** -** The sqlite.lastRowid records the last insert rowid generated by an -** insert statement. Inserts on views do not affect its value. Each -** trigger has its own context, so that lastRowid can be updated inside -** triggers as usual. The previous value will be restored once the trigger -** exits. Upon entering a before or instead of trigger, lastRowid is no -** longer (since after version 2.8.12) reset to -1. -** -** The sqlite.nChange does not count changes within triggers and keeps no -** context. It is reset at start of sqlite3_exec. -** The sqlite.lsChange represents the number of changes made by the last -** insert, update, or delete statement. It remains constant throughout the -** length of a statement and is then updated by OP_SetCounts. It keeps a -** context stack just like lastRowid so that the count of changes -** within a trigger is not seen outside the trigger. Changes to views do not -** affect the value of lsChange. -** The sqlite.csChange keeps track of the number of current changes (since -** the last statement) and is used to update sqlite_lsChange. -** -** The member variables sqlite.errCode, sqlite.zErrMsg and sqlite.zErrMsg16 -** store the most recent error code and, if applicable, string. The -** internal function sqlite3Error() is used to set these variables -** consistently. */ struct sqlite3 { sqlite3_vfs *pVfs; /* OS Interface */ - int nDb; /* Number of backends currently in use */ + struct Vdbe *pVdbe; /* List of active virtual machines */ + CollSeq *pDfltColl; /* The default collating sequence (BINARY) */ + sqlite3_mutex *mutex; /* Connection mutex */ Db *aDb; /* All backends */ + int nDb; /* Number of backends currently in use */ int flags; /* Miscellaneous flags. See below */ + i64 lastRowid; /* ROWID of most recent insert (see above) */ unsigned int openFlags; /* Flags passed to sqlite3_vfs.xOpen() */ int errCode; /* Most recent error code (SQLITE_*) */ int errMask; /* & result codes with this before returning */ @@ -824,27 +817,23 @@ struct sqlite3 { signed char nextAutovac; /* Autovac setting after VACUUM if >=0 */ u8 suppressErr; /* Do not issue error messages if true */ u8 vtabOnConflict; /* Value to return for s3_vtab_on_conflict() */ + u8 isTransactionSavepoint; /* True if the outermost savepoint is a TS */ int nextPagesize; /* Pagesize after VACUUM if >0 */ - int nTable; /* Number of tables in the database */ - CollSeq *pDfltColl; /* The default collating sequence (BINARY) */ - i64 lastRowid; /* ROWID of most recent insert (see above) */ u32 magic; /* Magic number for detect library misuse */ int nChange; /* Value returned by sqlite3_changes() */ int nTotalChange; /* Value returned by sqlite3_total_changes() */ - sqlite3_mutex *mutex; /* Connection mutex */ int aLimit[SQLITE_N_LIMIT]; /* Limits */ struct sqlite3InitInfo { /* Information used during initialization */ - int iDb; /* When back is being initialized */ int newTnum; /* Rootpage of table being initialized */ + u8 iDb; /* Which db file is being initialized */ u8 busy; /* TRUE if currently initializing */ u8 orphanTrigger; /* Last statement is orphaned TEMP trigger */ } init; - int nExtension; /* Number of loaded extensions */ - void **aExtension; /* Array of shared library handles */ - struct Vdbe *pVdbe; /* List of active virtual machines */ int activeVdbeCnt; /* Number of VDBEs currently executing */ int writeVdbeCnt; /* Number of active VDBEs that are writing */ int vdbeExecCnt; /* Number of nested calls to VdbeExec() */ + int nExtension; /* Number of loaded extensions */ + void **aExtension; /* Array of shared library handles */ void (*xTrace)(void*,const char*); /* Trace function */ void *pTraceArg; /* Argument to the trace function */ void (*xProfile)(void*,const char*,u64); /* Profiling function */ @@ -881,21 +870,20 @@ struct sqlite3 { int nProgressOps; /* Number of opcodes for progress callback */ #endif #ifndef SQLITE_OMIT_VIRTUALTABLE + int nVTrans; /* Allocated size of aVTrans */ Hash aModule; /* populated by sqlite3_create_module() */ VtabCtx *pVtabCtx; /* Context for active vtab connect/create */ VTable **aVTrans; /* Virtual tables with open transactions */ - int nVTrans; /* Allocated size of aVTrans */ VTable *pDisconnect; /* Disconnect these in next sqlite3_prepare() */ #endif FuncDefHash aFunc; /* Hash table of connection functions */ Hash aCollSeq; /* All collating sequences */ BusyHandler busyHandler; /* Busy callback */ - int busyTimeout; /* Busy handler timeout, in msec */ Db aDbStatic[2]; /* Static space for the 2 default backends */ Savepoint *pSavepoint; /* List of active savepoints */ + int busyTimeout; /* Busy handler timeout, in msec */ int nSavepoint; /* Number of non-transaction savepoints */ int nStatement; /* Number of nested statement-transactions */ - u8 isTransactionSavepoint; /* True if the outermost savepoint is a TS */ i64 nDeferredCons; /* Net deferred constraints this transaction. */ int *pnBytesFreed; /* If not NULL, increment this in DbFree() */ @@ -938,8 +926,7 @@ struct sqlite3 { #define SQLITE_SqlTrace 0x00004000 /* Debug print SQL as it executes */ #define SQLITE_VdbeListing 0x00008000 /* Debug listings of VDBE programs */ #define SQLITE_WriteSchema 0x00010000 /* OK to update SQLITE_MASTER */ -#define SQLITE_NoReadlock 0x00020000 /* Readlocks are omitted when - ** accessing read-only databases */ + /* 0x00020000 Unused */ #define SQLITE_IgnoreChecks 0x00040000 /* Do not enforce check constraints */ #define SQLITE_ReadUncommitted 0x0080000 /* For shared-cache mode */ #define SQLITE_LegacyFileFmt 0x00100000 /* Create new databases in format 1 */ @@ -1022,15 +1009,18 @@ struct FuncDestructor { }; /* -** Possible values for FuncDef.flags +** Possible values for FuncDef.flags. Note that the _LENGTH and _TYPEOF +** values must correspond to OPFLAG_LENGTHARG and OPFLAG_TYPEOFARG. There +** are assert() statements in the code to verify this. */ #define SQLITE_FUNC_LIKE 0x01 /* Candidate for the LIKE optimization */ #define SQLITE_FUNC_CASE 0x02 /* Case-sensitive LIKE-type function */ #define SQLITE_FUNC_EPHEM 0x04 /* Ephemeral. Delete with VDBE */ #define SQLITE_FUNC_NEEDCOLL 0x08 /* sqlite3GetFuncCollSeq() might be called */ -#define SQLITE_FUNC_PRIVATE 0x10 /* Allowed for internal use only */ -#define SQLITE_FUNC_COUNT 0x20 /* Built-in count(*) aggregate */ -#define SQLITE_FUNC_COALESCE 0x40 /* Built-in coalesce() or ifnull() function */ +#define SQLITE_FUNC_COUNT 0x10 /* Built-in count(*) aggregate */ +#define SQLITE_FUNC_COALESCE 0x20 /* Built-in coalesce() or ifnull() function */ +#define SQLITE_FUNC_LENGTH 0x40 /* Built-in length() function */ +#define SQLITE_FUNC_TYPEOF 0x80 /* Built-in typeof() function */ /* ** The following three macros, FUNCTION(), LIKEFUNC() and AGGREGATE() are @@ -1058,7 +1048,10 @@ struct FuncDestructor { ** parameter. */ #define FUNCTION(zName, nArg, iArg, bNC, xFunc) \ - {nArg, SQLITE_UTF8, bNC*SQLITE_FUNC_NEEDCOLL, \ + {nArg, SQLITE_UTF8, (bNC*SQLITE_FUNC_NEEDCOLL), \ + SQLITE_INT_TO_PTR(iArg), 0, xFunc, 0, 0, #zName, 0, 0} +#define FUNCTION2(zName, nArg, iArg, bNC, xFunc, extraFlags) \ + {nArg, SQLITE_UTF8, (bNC*SQLITE_FUNC_NEEDCOLL)|extraFlags, \ SQLITE_INT_TO_PTR(iArg), 0, xFunc, 0, 0, #zName, 0, 0} #define STR_FUNCTION(zName, nArg, pArg, bNC, xFunc) \ {nArg, SQLITE_UTF8, bNC*SQLITE_FUNC_NEEDCOLL, \ @@ -1144,21 +1137,12 @@ struct Column { struct CollSeq { char *zName; /* Name of the collating sequence, UTF-8 encoded */ u8 enc; /* Text encoding handled by xCmp() */ - u8 type; /* One of the SQLITE_COLL_... values below */ void *pUser; /* First argument to xCmp() */ int (*xCmp)(void*,int, const void*, int, const void*); void (*xDel)(void*); /* Destructor for pUser */ }; /* -** Allowed values of CollSeq.type: -*/ -#define SQLITE_COLL_BINARY 1 /* The default memcmp() collating sequence */ -#define SQLITE_COLL_NOCASE 2 /* The built-in NOCASE collating sequence */ -#define SQLITE_COLL_REVERSE 3 /* The built-in REVERSE collating sequence */ -#define SQLITE_COLL_USER 0 /* Any other user-defined collating sequence */ - -/* ** A sort order can be either ASC or DESC. */ #define SQLITE_SO_ASC 0 /* Sort in ascending order */ @@ -1297,7 +1281,7 @@ struct Table { FKey *pFKey; /* Linked list of all foreign keys in this table */ char *zColAff; /* String defining the affinity of each column */ #ifndef SQLITE_OMIT_CHECK - Expr *pCheck; /* The AND of all CHECK constraints */ + ExprList *pCheck; /* All CHECK constraints */ #endif #ifndef SQLITE_OMIT_ALTERTABLE int addColOffset; /* Offset in CREATE TABLE stmt to add a new column */ @@ -1320,8 +1304,6 @@ struct Table { #define TF_HasPrimaryKey 0x04 /* Table has a primary key */ #define TF_Autoincrement 0x08 /* Integer primary key is autoincrement */ #define TF_Virtual 0x10 /* Is a virtual table */ -#define TF_NeedMetadata 0x20 /* aCol[].zType and aCol[].pColl missing */ - /* @@ -1443,7 +1425,7 @@ struct KeyInfo { struct UnpackedRecord { KeyInfo *pKeyInfo; /* Collation and sort-order information */ u16 nField; /* Number of entries in apMem[] */ - u16 flags; /* Boolean settings. UNPACKED_... below */ + u8 flags; /* Boolean settings. UNPACKED_... below */ i64 rowid; /* Used by UNPACKED_PREFIX_SEARCH */ Mem *aMem; /* Values */ }; @@ -1451,12 +1433,9 @@ struct UnpackedRecord { /* ** Allowed values of UnpackedRecord.flags */ -#define UNPACKED_NEED_FREE 0x0001 /* Memory is from sqlite3Malloc() */ -#define UNPACKED_NEED_DESTROY 0x0002 /* apMem[]s should all be destroyed */ -#define UNPACKED_IGNORE_ROWID 0x0004 /* Ignore trailing rowid on key1 */ -#define UNPACKED_INCRKEY 0x0008 /* Make this key an epsilon larger */ -#define UNPACKED_PREFIX_MATCH 0x0010 /* A prefix match is considered OK */ -#define UNPACKED_PREFIX_SEARCH 0x0020 /* A prefix match is considered OK */ +#define UNPACKED_INCRKEY 0x01 /* Make this key an epsilon larger */ +#define UNPACKED_PREFIX_MATCH 0x02 /* A prefix match is considered OK */ +#define UNPACKED_PREFIX_SEARCH 0x04 /* Ignore final (rowid) field */ /* ** Each SQL index is represented in memory by an @@ -1486,19 +1465,19 @@ struct UnpackedRecord { */ struct Index { char *zName; /* Name of this index */ - int nColumn; /* Number of columns in the table used by this index */ int *aiColumn; /* Which columns are used by this index. 1st is 0 */ tRowcnt *aiRowEst; /* Result of ANALYZE: Est. rows selected by each column */ Table *pTable; /* The SQL table being indexed */ - int tnum; /* Page containing root of this index in database file */ - u8 onError; /* OE_Abort, OE_Ignore, OE_Replace, or OE_None */ - u8 autoIndex; /* True if is automatically created (ex: by UNIQUE) */ - u8 bUnordered; /* Use this index for == or IN queries only */ char *zColAff; /* String defining the affinity of each column */ Index *pNext; /* The next index associated with the same table */ Schema *pSchema; /* Schema containing this index */ u8 *aSortOrder; /* Array of size Index.nColumn. True==DESC, False==ASC */ char **azColl; /* Array of collation sequence names for index */ + int nColumn; /* Number of columns in the table used by this index */ + int tnum; /* Page containing root of this index in database file */ + u8 onError; /* OE_Abort, OE_Ignore, OE_Replace, or OE_None */ + u8 autoIndex; /* True if is automatically created (ex: by UNIQUE) */ + u8 bUnordered; /* Use this index for == or IN queries only */ #ifdef SQLITE_ENABLE_STAT3 int nSample; /* Number of elements in aSample[] */ tRowcnt avgEq; /* Average nEq value for key values not in aSample */ @@ -1557,8 +1536,8 @@ struct AggInfo { ** than the source table */ int sortingIdx; /* Cursor number of the sorting index */ int sortingIdxPTab; /* Cursor number of pseudo-table */ - ExprList *pGroupBy; /* The group by clause */ int nSortingColumn; /* Number of columns in the sorting index */ + ExprList *pGroupBy; /* The group by clause */ struct AggInfo_col { /* For each column used in source tables */ Table *pTab; /* Source table */ int iTable; /* Cursor number of the source table */ @@ -1568,7 +1547,6 @@ struct AggInfo { Expr *pExpr; /* The original expression */ } *aCol; int nColumn; /* Number of used entries in aCol[] */ - int nColumnAlloc; /* Number of slots allocated for aCol[] */ int nAccumulator; /* Number of columns that show through to the output. ** Additional columns are used only as parameters to ** aggregate functions */ @@ -1579,7 +1557,6 @@ struct AggInfo { int iDistinct; /* Ephemeral table used to enforce DISTINCT */ } *aFunc; int nFunc; /* Number of entries in aFunc[] */ - int nFuncAlloc; /* Number of slots allocated for aFunc[] */ }; /* @@ -1697,6 +1674,7 @@ struct Expr { i16 iRightJoinTable; /* If EP_FromJoin, the right table of the join */ u8 flags2; /* Second set of flags. EP2_... */ u8 op2; /* If a TK_REGISTER, the original value of Expr.op */ + /* If TK_COLUMN, the value of p5 for OP_Column */ AggInfo *pAggInfo; /* Used by TK_AGG_COLUMN and TK_AGG_FUNCTION */ Table *pTab; /* Table for TK_COLUMN expressions. */ #if SQLITE_MAX_EXPR_DEPTH>0 @@ -1719,10 +1697,10 @@ struct Expr { #define EP_FixedDest 0x0200 /* Result needed in a specific register */ #define EP_IntValue 0x0400 /* Integer value contained in u.iValue */ #define EP_xIsSelect 0x0800 /* x.pSelect is valid (otherwise x.pList is) */ - -#define EP_Reduced 0x1000 /* Expr struct is EXPR_REDUCEDSIZE bytes only */ -#define EP_TokenOnly 0x2000 /* Expr struct is EXPR_TOKENONLYSIZE bytes only */ -#define EP_Static 0x4000 /* Held in memory not obtained from malloc() */ +#define EP_Hint 0x1000 /* Not used */ +#define EP_Reduced 0x2000 /* Expr struct is EXPR_REDUCEDSIZE bytes only */ +#define EP_TokenOnly 0x4000 /* Expr struct is EXPR_TOKENONLYSIZE bytes only */ +#define EP_Static 0x8000 /* Held in memory not obtained from malloc() */ /* ** The following are the meanings of bits in the Expr.flags2 field. @@ -1776,17 +1754,16 @@ struct Expr { */ struct ExprList { int nExpr; /* Number of expressions on the list */ - int nAlloc; /* Number of entries allocated below */ int iECursor; /* VDBE Cursor associated with this ExprList */ - struct ExprList_item { + struct ExprList_item { /* For each expression in the list */ Expr *pExpr; /* The list of expressions */ char *zName; /* Token associated with this expression */ char *zSpan; /* Original text of the expression */ u8 sortOrder; /* 1 for DESC or 0 for ASC */ u8 done; /* A flag to indicate when processing is finished */ - u16 iCol; /* For ORDER BY, column number in result set */ + u16 iOrderByCol; /* For ORDER BY, column number in result set */ u16 iAlias; /* Index into Parse.aAlias[] for zName */ - } *a; /* One entry for each expression */ + } *a; /* Alloc a power of two greater or equal to nExpr */ }; /* @@ -1821,7 +1798,6 @@ struct IdList { int idx; /* Index in some Table.aCol[] of a column named zName */ } *a; int nId; /* Number of identifiers on the list */ - int nAlloc; /* Number of entries allocated for a[] below */ }; /* @@ -2030,17 +2006,22 @@ struct NameContext { Parse *pParse; /* The parser */ SrcList *pSrcList; /* One or more tables used to resolve names */ ExprList *pEList; /* Optional list of named expressions */ - int nRef; /* Number of names resolved by this context */ - int nErr; /* Number of errors encountered while resolving names */ - u8 allowAgg; /* Aggregate functions allowed here */ - u8 hasAgg; /* True if aggregates are seen */ - u8 isCheck; /* True if resolving names in a CHECK constraint */ - int nDepth; /* Depth of subquery recursion. 1 for no recursion */ AggInfo *pAggInfo; /* Information about aggregates at this level */ NameContext *pNext; /* Next outer name context. NULL for outermost */ + int nRef; /* Number of names resolved by this context */ + int nErr; /* Number of errors encountered while resolving names */ + u8 ncFlags; /* Zero or more NC_* flags defined below */ }; /* +** Allowed values for the NameContext, ncFlags field. +*/ +#define NC_AllowAgg 0x01 /* Aggregate functions are allowed here */ +#define NC_HasAgg 0x02 /* One or more aggregate functions seen */ +#define NC_IsCheck 0x04 /* True if resolving names in a CHECK constraint */ +#define NC_InAggFunc 0x08 /* True if analyzing arguments to an agg func */ + +/* ** An instance of the following structure contains all information ** needed to generate code for a single SELECT statement. ** @@ -2065,6 +2046,9 @@ struct Select { u8 op; /* One of: TK_UNION TK_ALL TK_INTERSECT TK_EXCEPT */ char affinity; /* MakeRecord with this affinity for SRT_Set */ u16 selFlags; /* Various SF_* values */ + int iLimit, iOffset; /* Memory registers holding LIMIT & OFFSET counters */ + int addrOpenEphm[3]; /* OP_OpenEphem opcodes related to this select */ + double nSelectRow; /* Estimated number of result rows */ SrcList *pSrc; /* The FROM clause */ Expr *pWhere; /* The WHERE clause */ ExprList *pGroupBy; /* The GROUP BY clause */ @@ -2075,22 +2059,20 @@ 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. */ - int iLimit, iOffset; /* Memory registers holding LIMIT & OFFSET counters */ - int addrOpenEphm[3]; /* OP_OpenEphem opcodes related to this select */ - double nSelectRow; /* Estimated number of result rows */ }; /* ** Allowed values for Select.selFlags. The "SF" prefix stands for ** "Select Flag". */ -#define SF_Distinct 0x0001 /* Output should be DISTINCT */ -#define SF_Resolved 0x0002 /* Identifiers have been resolved */ -#define SF_Aggregate 0x0004 /* Contains aggregate functions */ -#define SF_UsesEphemeral 0x0008 /* Uses the OpenEphemeral opcode */ -#define SF_Expanded 0x0010 /* sqlite3SelectExpand() called on this */ -#define SF_HasTypeInfo 0x0020 /* FROM subqueries have Table metadata */ -#define SF_UseSorter 0x0040 /* Sort using a sorter */ +#define SF_Distinct 0x01 /* Output should be DISTINCT */ +#define SF_Resolved 0x02 /* Identifiers have been resolved */ +#define SF_Aggregate 0x04 /* Contains aggregate functions */ +#define SF_UsesEphemeral 0x08 /* Uses the OpenEphemeral opcode */ +#define SF_Expanded 0x10 /* sqlite3SelectExpand() called on this */ +#define SF_HasTypeInfo 0x20 /* FROM subqueries have Table metadata */ +#define SF_UseSorter 0x40 /* Sort using a sorter */ +#define SF_Values 0x80 /* Synthesized from VALUES clause */ /* @@ -2168,10 +2150,10 @@ struct AutoincInfo { */ struct TriggerPrg { Trigger *pTrigger; /* Trigger this program was coded from */ - int orconf; /* Default ON CONFLICT policy */ + TriggerPrg *pNext; /* Next entry in Parse.pTriggerPrg list */ SubProgram *pProgram; /* Program implementing pTrigger/orconf */ + int orconf; /* Default ON CONFLICT policy */ u32 aColmask[2]; /* Masks of old.*, new.* columns accessed */ - TriggerPrg *pNext; /* Next entry in Parse.pTriggerPrg list */ }; /* @@ -2201,16 +2183,18 @@ struct TriggerPrg { */ struct Parse { sqlite3 *db; /* The main database structure */ - int rc; /* Return code from execution */ char *zErrMsg; /* An error message */ Vdbe *pVdbe; /* An engine for executing database bytecode */ + int rc; /* Return code from execution */ u8 colNamesSet; /* TRUE after OP_ColumnName has been issued to pVdbe */ - u8 nameClash; /* A permanent table name clashes with temp table name */ u8 checkSchema; /* Causes schema cookie check after an error */ u8 nested; /* Number of nested calls to the parser/code generator */ - u8 parseError; /* True after a parsing error. Ticket #1794 */ u8 nTempReg; /* Number of temporary registers in aTempReg[] */ u8 nTempInUse; /* Number of aTempReg[] currently checked out */ + u8 nColCache; /* Number of entries in aColCache[] */ + u8 iColCache; /* Next entry in aColCache[] to replace */ + u8 isMultiWrite; /* True if statement may modify/insert multiple rows */ + u8 mayAbort; /* True if statement may throw an ABORT exception */ int aTempReg[8]; /* Holding area for temporary registers */ int nRangeReg; /* Size of the temporary register block */ int iRangeReg; /* First register in temporary register block */ @@ -2218,11 +2202,10 @@ struct Parse { 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 ckBase; /* Base register of data during check constraints */ int iCacheLevel; /* ColCache valid when aColCache[].iLevel<=iCacheLevel */ int iCacheCnt; /* Counter used to generate aColCache[].lru values */ - u8 nColCache; /* Number of entries in the column cache */ - u8 iColCache; /* Next entry of the cache to replace */ struct yColCache { int iTable; /* Table cursor number */ int iColumn; /* Table column number */ @@ -2233,62 +2216,64 @@ struct Parse { } aColCache[SQLITE_N_COLCACHE]; /* One for each column cache entry */ yDbMask writeMask; /* Start a write transaction on these databases */ yDbMask cookieMask; /* Bitmask of schema verified databases */ - u8 isMultiWrite; /* True if statement may affect/insert multiple rows */ - u8 mayAbort; /* True if statement may throw an ABORT exception */ 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 - int regRowid; /* Register holding rowid of CREATE TABLE entry */ - int regRoot; /* Register holding root page number for new objects */ AutoincInfo *pAinc; /* Information about AUTOINCREMENT counters */ - int nMaxArg; /* Max args passed to user function by sub-program */ /* Information used while coding trigger programs. */ Parse *pToplevel; /* Parse structure for main program (or NULL) */ Table *pTriggerTab; /* Table triggers are being coded for */ + double nQueryLoop; /* Estimated number of iterations of a query */ 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 */ - double nQueryLoop; /* Estimated number of iterations of a query */ /* Above is constant between recursions. Below is reset before and after ** each recursion */ - int nVar; /* Number of '?' variables seen in the SQL so far */ - int nzVar; /* Number of available slots in azVar[] */ - char **azVar; /* Pointers to names of parameters */ - Vdbe *pReprepare; /* VM being reprepared (sqlite3Reprepare()) */ - int nAlias; /* Number of aliased result set columns */ - int nAliasAlloc; /* Number of allocated slots for aAlias[] */ - int *aAlias; /* Register used to hold aliased result */ - u8 explain; /* True if the EXPLAIN flag is found on the query */ - Token sNameToken; /* Token with unqualified schema object name */ - Token sLastToken; /* The last token parsed */ - const char *zTail; /* All SQL text past the last semicolon parsed */ - Table *pNewTable; /* A table being constructed by CREATE TABLE */ - Trigger *pNewTrigger; /* Trigger under construct by a CREATE TRIGGER */ - const char *zAuthContext; /* The 6th parameter to db->xAuth callbacks */ + int nVar; /* Number of '?' variables seen in the SQL so far */ + int nzVar; /* Number of available slots in azVar[] */ + u8 explain; /* True if the EXPLAIN flag is found on the query */ #ifndef SQLITE_OMIT_VIRTUALTABLE - Token sArg; /* Complete text of a module argument */ - u8 declareVtab; /* True if inside sqlite3_declare_vtab() */ - int nVtabLock; /* Number of virtual tables to lock */ - Table **apVtabLock; /* Pointer to virtual tables needing locking */ + u8 declareVtab; /* True if inside sqlite3_declare_vtab() */ + int nVtabLock; /* Number of virtual tables to lock */ #endif - int nHeight; /* Expression tree height of current sub-select */ - Table *pZombieTab; /* List of Table objects to delete after code gen */ - TriggerPrg *pTriggerPrg; /* Linked list of coded triggers */ - + int nAlias; /* Number of aliased result set columns */ + int nHeight; /* Expression tree height of current sub-select */ #ifndef SQLITE_OMIT_EXPLAIN - int iSelectId; - int iNextSelectId; + int iSelectId; /* ID of current select for EXPLAIN output */ + int iNextSelectId; /* Next available select ID for EXPLAIN output */ +#endif + char **azVar; /* Pointers to names of parameters */ + Vdbe *pReprepare; /* VM being reprepared (sqlite3Reprepare()) */ + int *aAlias; /* Register used to hold aliased result */ + const char *zTail; /* All SQL text past the last semicolon parsed */ + Table *pNewTable; /* A table being constructed by CREATE TABLE */ + Trigger *pNewTrigger; /* Trigger under construct by a CREATE TRIGGER */ + const char *zAuthContext; /* The 6th parameter to db->xAuth callbacks */ + Token sNameToken; /* Token with unqualified schema object name */ + Token sLastToken; /* The last token parsed */ +#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 */ }; +/* +** Return true if currently inside an sqlite3_declare_vtab() call. +*/ #ifdef SQLITE_OMIT_VIRTUALTABLE #define IN_DECLARE_VTAB 0 #else @@ -2305,7 +2290,7 @@ struct AuthContext { }; /* -** Bitfield flags for P5 value in OP_Insert and OP_Delete +** Bitfield flags for P5 value in various opcodes. */ #define OPFLAG_NCHANGE 0x01 /* Set to update db->nChange */ #define OPFLAG_LASTROWID 0x02 /* Set to update db->lastRowid */ @@ -2313,6 +2298,8 @@ struct AuthContext { #define OPFLAG_APPEND 0x08 /* This is likely to be an append */ #define OPFLAG_USESEEKRESULT 0x10 /* Try to avoid a seek in BtreeInsert() */ #define OPFLAG_CLEARCACHE 0x20 /* Clear pseudo-table cache in OP_Column */ +#define OPFLAG_LENGTHARG 0x40 /* OP_Column only used for length() */ +#define OPFLAG_TYPEOFARG 0x80 /* OP_Column only used for typeof() */ /* * Each trigger present in the database schema is stored as an instance of @@ -2439,8 +2426,8 @@ struct StrAccum { */ typedef struct { sqlite3 *db; /* The database being initialized */ - int iDb; /* 0 for main database. 1 for TEMP, 2.. for ATTACHed */ char **pzErrMsg; /* Error message stored here */ + int iDb; /* 0 for main database. 1 for TEMP, 2.. for ATTACHed */ int rc; /* Result code stored here */ } InitData; @@ -2459,7 +2446,7 @@ struct Sqlite3Config { int nLookaside; /* Default lookaside buffer count */ sqlite3_mem_methods m; /* Low-level memory allocation interface */ sqlite3_mutex_methods mutex; /* Low-level mutex interface */ - sqlite3_pcache_methods pcache; /* Low-level page-cache interface */ + sqlite3_pcache_methods2 pcache2; /* Low-level page-cache interface */ void *pHeap; /* Heap storage space */ int nHeap; /* Size of pHeap[] */ int mnReq, mxReq; /* Min and max heap requests sizes */ @@ -2495,6 +2482,7 @@ struct Walker { union { /* Extra data for callback */ NameContext *pNC; /* Naming context */ int i; /* Integer value */ + SrcList *pSrcList; /* FROM clause */ } u; }; @@ -2582,7 +2570,7 @@ int sqlite3CantopenError(int); /* ** Internal function prototypes */ -int sqlite3StrICmp(const char *, const char *); +#define sqlite3StrICmp sqlite3_stricmp int sqlite3Strlen30(const char*); #define sqlite3StrNICmp sqlite3_strnicmp @@ -2665,6 +2653,29 @@ char *sqlite3MAppendf(sqlite3*,char*,const char*,...); #if defined(SQLITE_TEST) void *sqlite3TestTextToPtr(const char*); #endif + +/* Output formatting for SQLITE_TESTCTRL_EXPLAIN */ +#if defined(SQLITE_ENABLE_TREE_EXPLAIN) + void sqlite3ExplainBegin(Vdbe*); + void sqlite3ExplainPrintf(Vdbe*, const char*, ...); + void sqlite3ExplainNL(Vdbe*); + void sqlite3ExplainPush(Vdbe*); + void sqlite3ExplainPop(Vdbe*); + void sqlite3ExplainFinish(Vdbe*); + void sqlite3ExplainSelect(Vdbe*, Select*); + void sqlite3ExplainExpr(Vdbe*, Expr*); + void sqlite3ExplainExprList(Vdbe*, ExprList*); + const char *sqlite3VdbeExplanation(Vdbe*); +#else +# define sqlite3ExplainBegin(X) +# define sqlite3ExplainSelect(A,B) +# define sqlite3ExplainExpr(A,B) +# define sqlite3ExplainExprList(A,B) +# define sqlite3ExplainFinish(X) +# define sqlite3VdbeExplanation(X) 0 +#endif + + void sqlite3SetString(char **, sqlite3*, const char*, ...); void sqlite3ErrorMsg(Parse*, const char*, ...); int sqlite3Dequote(char*); @@ -2675,6 +2686,7 @@ int sqlite3GetTempReg(Parse*); void sqlite3ReleaseTempReg(Parse*,int); int sqlite3GetTempRange(Parse*,int); void sqlite3ReleaseTempRange(Parse*,int,int); +void sqlite3ClearTempRegCache(Parse*); Expr *sqlite3ExprAlloc(sqlite3*,int,const Token*,int); Expr *sqlite3Expr(sqlite3*,int,const char*); void sqlite3ExprAttachSubtrees(sqlite3*,Expr*,Expr*,Expr*); @@ -2706,6 +2718,8 @@ void sqlite3AddCollateType(Parse*, Token*); void sqlite3EndTable(Parse*,Token*,Token*,Select*); int sqlite3ParseUri(const char*,const char*,unsigned int*, sqlite3_vfs**,char**,char **); +Btree *sqlite3DbNameToBtree(sqlite3*,const char*); +int sqlite3CodeOnce(Parse *); Bitvec *sqlite3BitvecCreate(u32); int sqlite3BitvecTest(Bitvec*, u32); @@ -2740,7 +2754,7 @@ void sqlite3DeleteTable(sqlite3*, Table*); # define sqlite3AutoincrementEnd(X) #endif void sqlite3Insert(Parse*, SrcList*, ExprList*, Select*, IdList*, int); -void *sqlite3ArrayAllocate(sqlite3*,void*,int,int,int*,int*,int*); +void *sqlite3ArrayAllocate(sqlite3*,void*,int,int*,int*); IdList *sqlite3IdListAppend(sqlite3*, IdList*, Token*); int sqlite3IdListIndex(IdList*,const char*); SrcList *sqlite3SrcListEnlarge(sqlite3*, SrcList*, int, int); @@ -2770,7 +2784,7 @@ void sqlite3DeleteFrom(Parse*, SrcList*, Expr*); void sqlite3Update(Parse*, SrcList*, ExprList*, Expr*, int); WhereInfo *sqlite3WhereBegin(Parse*, SrcList*, Expr*, ExprList**,ExprList*,u16); void sqlite3WhereEnd(WhereInfo*); -int sqlite3ExprCodeGetColumn(Parse*, Table*, int, int, int); +int sqlite3ExprCodeGetColumn(Parse*, Table*, int, int, int, u8); void sqlite3ExprCodeGetColumnOfTable(Vdbe*, Table*, int, int, int); void sqlite3ExprCodeMove(Parse*, int, int, int); void sqlite3ExprCodeCopy(Parse*, int, int, int); @@ -2804,7 +2818,7 @@ Vdbe *sqlite3GetVdbe(Parse*); void sqlite3PrngSaveState(void); void sqlite3PrngRestoreState(void); void sqlite3PrngResetState(void); -void sqlite3RollbackAll(sqlite3*); +void sqlite3RollbackAll(sqlite3*,int); void sqlite3CodeVerifySchema(Parse*, int); void sqlite3CodeVerifyNamedSchema(Parse*, const char *zDb); void sqlite3BeginTransaction(Parse*, int); @@ -2837,7 +2851,7 @@ SrcList *sqlite3SrcListDup(sqlite3*,SrcList*,int); IdList *sqlite3IdListDup(sqlite3*,IdList*); Select *sqlite3SelectDup(sqlite3*,Select*,int); void sqlite3FuncDefInsert(FuncDefHash*, FuncDef*); -FuncDef *sqlite3FindFunction(sqlite3*,const char*,int,int,u8,int); +FuncDef *sqlite3FindFunction(sqlite3*,const char*,int,int,u8,u8); void sqlite3RegisterBuiltinFunctions(sqlite3*); void sqlite3RegisterDateTimeFunctions(void); void sqlite3RegisterGlobalFunctions(void); @@ -2978,7 +2992,7 @@ void sqlite3FileSuffix3(const char*, char*); #else # define sqlite3FileSuffix3(X,Y) #endif -u8 sqlite3GetBoolean(const char *z); +u8 sqlite3GetBoolean(const char *z,int); const void *sqlite3ValueText(sqlite3_value*, u8); int sqlite3ValueBytes(sqlite3_value*, u8); @@ -3044,6 +3058,7 @@ int sqlite3OpenTempDatabase(Parse *); void sqlite3StrAccumInit(StrAccum*, char*, int, int); void sqlite3StrAccumAppend(StrAccum*,const char*,int); +void sqlite3AppendSpace(StrAccum*,int); char *sqlite3StrAccumFinish(StrAccum*); void sqlite3StrAccumReset(StrAccum*); void sqlite3SelectDestInit(SelectDest*,int,int); @@ -3103,7 +3118,7 @@ void sqlite3AutoLoadExtensions(sqlite3*); # define sqlite3VtabInSync(db) ((db)->nVTrans>0 && (db)->aVTrans==0) #endif void sqlite3VtabMakeWritable(Parse*,Table*); -void sqlite3VtabBeginParse(Parse*, Token*, Token*, Token*); +void sqlite3VtabBeginParse(Parse*, Token*, Token*, Token*, int); void sqlite3VtabFinishParse(Parse*, Token*); void sqlite3VtabArgInit(Parse*); void sqlite3VtabArgExtend(Parse*, Token*); |