diff options
Diffstat (limited to 'src/sqliteInt.h')
| -rw-r--r-- | src/sqliteInt.h | 169 |
1 files changed, 127 insertions, 42 deletions
diff --git a/src/sqliteInt.h b/src/sqliteInt.h index 79a36e060..d1ffce6d8 100644 --- a/src/sqliteInt.h +++ b/src/sqliteInt.h @@ -143,10 +143,13 @@ /* ** Macro to disable warnings about missing "break" at the end of a "case". */ -#if GCC_VERSION>=7000000 -# define deliberate_fall_through __attribute__((fallthrough)); -#else -# define deliberate_fall_through +#if defined(__has_attribute) +# if __has_attribute(fallthrough) +# define deliberate_fall_through __attribute__((fallthrough)); +# endif +#endif +#if !defined(deliberate_fall_through) +# define deliberate_fall_through #endif /* @@ -609,6 +612,8 @@ # define SQLITE_OMIT_ALTERTABLE #endif +#define SQLITE_DIGIT_SEPARATOR '_' + /* ** Return true (non-zero) if the input is an integer that is too large ** to fit in 32-bits. This macro is used inside of various testcase() @@ -886,7 +891,7 @@ typedef INT16_TYPE LogEst; # define SQLITE_PTRSIZE __SIZEOF_POINTER__ # elif defined(i386) || defined(__i386__) || defined(_M_IX86) || \ defined(_M_ARM) || defined(__arm__) || defined(__x86) || \ - (defined(__APPLE__) && defined(__POWERPC__)) || \ + (defined(__APPLE__) && defined(__ppc__)) || \ (defined(__TOS_AIX__) && !defined(__64BIT__)) # define SQLITE_PTRSIZE 4 # else @@ -1123,6 +1128,7 @@ extern u32 sqlite3TreeTrace; ** 0x00010000 Beginning of DELETE/INSERT/UPDATE processing ** 0x00020000 Transform DISTINCT into GROUP BY ** 0x00040000 SELECT tree dump after all code has been generated +** 0x00080000 NOT NULL strength reduction */ /* @@ -1153,7 +1159,7 @@ extern u32 sqlite3WhereTrace; ** 0x00000010 Display sqlite3_index_info xBestIndex calls ** 0x00000020 Range an equality scan metrics ** 0x00000040 IN operator decisions -** 0x00000080 WhereLoop cost adjustements +** 0x00000080 WhereLoop cost adjustments ** 0x00000100 ** 0x00000200 Covering index decisions ** 0x00000400 OR optimization @@ -1329,6 +1335,7 @@ typedef struct Savepoint Savepoint; typedef struct Select Select; typedef struct SQLiteThread SQLiteThread; typedef struct SelectDest SelectDest; +typedef struct Subquery Subquery; typedef struct SrcItem SrcItem; typedef struct SrcList SrcList; typedef struct sqlite3_str StrAccum; /* Internal alias for sqlite3_str */ @@ -1596,6 +1603,10 @@ struct FuncDefHash { }; #define SQLITE_FUNC_HASH(C,L) (((C)+(L))%SQLITE_FUNC_HASH_SZ) +#if defined(SQLITE_USER_AUTHENTICATION) +# warning "The SQLITE_USER_AUTHENTICATION extension is deprecated. \ + See ext/userauth/user-auth.txt for details." +#endif #ifdef SQLITE_USER_AUTHENTICATION /* ** Information held in the "sqlite3" database connection object and used @@ -1899,7 +1910,7 @@ struct sqlite3 { #define SQLITE_CursorHints 0x00000400 /* Add OP_CursorHint opcodes */ #define SQLITE_Stat4 0x00000800 /* Use STAT4 data */ /* TH3 expects this value ^^^^^^^^^^ to be 0x0000800. Don't change it */ -#define SQLITE_PushDown 0x00001000 /* The push-down optimization */ +#define SQLITE_PushDown 0x00001000 /* WHERE-clause push-down opt */ #define SQLITE_SimplifyJoin 0x00002000 /* Convert LEFT JOIN to JOIN */ #define SQLITE_SkipScan 0x00004000 /* Skip-scans */ #define SQLITE_PropagateConst 0x00008000 /* The constant propagation opt */ @@ -1917,6 +1928,7 @@ struct sqlite3 { #define SQLITE_Coroutines 0x02000000 /* Co-routines for subqueries */ #define SQLITE_NullUnusedCols 0x04000000 /* NULL unused columns in subqueries */ #define SQLITE_OnePass 0x08000000 /* Single-pass DELETE and UPDATE */ +#define SQLITE_OrderBySubq 0x10000000 /* ORDER BY in subquery helps outer */ #define SQLITE_AllOpts 0xffffffff /* All optimizations */ /* @@ -2472,8 +2484,7 @@ struct Table { #define TF_HasStored 0x00000040 /* Has one or more STORED columns */ #define TF_HasGenerated 0x00000060 /* Combo: HasVirtual + HasStored */ #define TF_WithoutRowid 0x00000080 /* No rowid. PRIMARY KEY is the key */ -#define TF_StatsUsed 0x00000100 /* Query planner decisions affected by - ** Index.aiRowLogEst[] values */ +#define TF_MaybeReanalyze 0x00000100 /* Maybe run ANALYZE on this table */ #define TF_NoVisibleRowid 0x00000200 /* No user-visible "rowid" column */ #define TF_OOOHidden 0x00000400 /* Out-of-Order hidden columns */ #define TF_HasNotNull 0x00000800 /* Contains NOT NULL constraints */ @@ -2529,6 +2540,15 @@ struct Table { #define HasRowid(X) (((X)->tabFlags & TF_WithoutRowid)==0) #define VisibleRowid(X) (((X)->tabFlags & TF_NoVisibleRowid)==0) +/* Macro is true if the SQLITE_ALLOW_ROWID_IN_VIEW (mis-)feature is +** available. By default, this macro is false +*/ +#ifndef SQLITE_ALLOW_ROWID_IN_VIEW +# define ViewCanHaveRowid 0 +#else +# define ViewCanHaveRowid (sqlite3Config.mNoVisibleRowid==0) +#endif + /* ** Each foreign key constraint is an instance of the following structure. ** @@ -2896,9 +2916,15 @@ struct AggInfo { ** assignAggregateRegisters() that computes the value of pAggInfo->iFirstReg. ** The assert()s that are part of this macro verify that constraint. */ +#ifndef NDEBUG #define AggInfoColumnReg(A,I) (assert((A)->iFirstReg),(A)->iFirstReg+(I)) #define AggInfoFuncReg(A,I) \ (assert((A)->iFirstReg),(A)->iFirstReg+(A)->nColumn+(I)) +#else +#define AggInfoColumnReg(A,I) ((A)->iFirstReg+(I)) +#define AggInfoFuncReg(A,I) \ + ((A)->iFirstReg+(A)->nColumn+(I)) +#endif /* ** The datatype ynVar is a signed integer, either 16-bit or 32-bit. @@ -3251,6 +3277,16 @@ struct IdList { #define EU4_EXPR 2 /* Uses IdList.a.u4.pExpr -- NOT CURRENTLY USED */ /* +** Details of the implementation of a subquery. +*/ +struct Subquery { + Select *pSelect; /* A SELECT statement used in place of a table name */ + int addrFillSub; /* Address of subroutine to initialize a subquery */ + int regReturn; /* Register holding return address of addrFillSub */ + int regResult; /* Registers holding results of a co-routine */ +}; + +/* ** The SrcItem object represents a single term in the FROM clause of a query. ** The SrcList object is mostly an array of SrcItems. ** @@ -3262,27 +3298,40 @@ struct IdList { ** In the colUsed field, the high-order bit (bit 63) is set if the table ** contains more than 63 columns and the 64-th or later column is used. ** -** Union member validity: +** Aggressive use of "union" helps keep the size of the object small. This +** has been shown to boost performance, in addition to saving memory. +** Access to union elements is gated by the following rules which should +** always be checked, either by an if-statement or by an assert(). ** -** u1.zIndexedBy fg.isIndexedBy && !fg.isTabFunc -** u1.pFuncArg fg.isTabFunc && !fg.isIndexedBy -** u2.pIBIndex fg.isIndexedBy && !fg.isCte -** u2.pCteUse fg.isCte && !fg.isIndexedBy +** Field Only access if this is true +** --------------- ----------------------------------- +** u1.zIndexedBy fg.isIndexedBy +** u1.pFuncArg fg.isTabFunc +** u1.nRow !fg.isTabFunc && !fg.isIndexedBy +** +** u2.pIBIndex fg.isIndexedBy +** u2.pCteUse fg.isCte +** +** u3.pOn !fg.isUsing +** u3.pUsing fg.isUsing +** +** u4.zDatabase !fg.fixedSchema && !fg.isSubquery +** u4.pSchema fg.fixedSchema +** u4.pSubq fg.isSubquery +** +** See also the sqlite3SrcListDelete() routine for assert() statements that +** check invariants on the fields of this object, especially the flags +** inside the fg struct. */ struct SrcItem { - Schema *pSchema; /* Schema to which this item is fixed */ - char *zDatabase; /* Name of database holding this table */ char *zName; /* Name of the table */ char *zAlias; /* The "B" part of a "A AS B" phrase. zName is the "A" */ - Table *pTab; /* An SQL table corresponding to zName */ - Select *pSelect; /* A SELECT statement used in place of a table name */ - int addrFillSub; /* Address of subroutine to manifest a subquery */ - int regReturn; /* Register holding return address of addrFillSub */ - int regResult; /* Registers holding results of a co-routine */ + Table *pSTab; /* Table object for zName. Mnemonic: Srcitem-TABle */ struct { u8 jointype; /* Type of join between this table and the previous */ unsigned notIndexed :1; /* True if there is a NOT INDEXED clause */ unsigned isIndexedBy :1; /* True if there is an INDEXED BY clause */ + unsigned isSubquery :1; /* True if this term is a subquery */ unsigned isTabFunc :1; /* True if table-valued-function syntax */ unsigned isCorrelated :1; /* True if sub-query is correlated */ unsigned isMaterialized:1; /* This is a materialized view */ @@ -3295,21 +3344,30 @@ struct SrcItem { unsigned isOn :1; /* u3.pOn was once valid and non-NULL */ unsigned isSynthUsing :1; /* u3.pUsing is synthesized from NATURAL */ unsigned isNestedFrom :1; /* pSelect is a SF_NestedFrom subquery */ + unsigned rowidUsed :1; /* The ROWID of this table is referenced */ + unsigned fixedSchema :1; /* Uses u4.pSchema, not u4.zDatabase */ + unsigned hadSchema :1; /* Had u4.zDatabase before u4.pSchema */ } fg; int iCursor; /* The VDBE cursor number used to access this table */ - union { - Expr *pOn; /* fg.isUsing==0 => The ON clause of a join */ - IdList *pUsing; /* fg.isUsing==1 => The USING clause of a join */ - } u3; Bitmask colUsed; /* Bit N set if column N used. Details above for N>62 */ union { char *zIndexedBy; /* Identifier from "INDEXED BY <zIndex>" clause */ ExprList *pFuncArg; /* Arguments to table-valued-function */ + u32 nRow; /* Number of rows in a VALUES clause */ } u1; union { Index *pIBIndex; /* Index structure corresponding to u1.zIndexedBy */ CteUse *pCteUse; /* CTE Usage info when fg.isCte is true */ } u2; + union { + Expr *pOn; /* fg.isUsing==0 => The ON clause of a join */ + IdList *pUsing; /* fg.isUsing==1 => The USING clause of a join */ + } u3; + union { + Schema *pSchema; /* Schema to which this item is fixed */ + char *zDatabase; /* Name of database holding this table */ + Subquery *pSubq; /* Description of a subquery */ + } u4; }; /* @@ -3369,7 +3427,7 @@ struct SrcList { #define WHERE_AGG_DISTINCT 0x0400 /* Query is "SELECT agg(DISTINCT ...)" */ #define WHERE_ORDERBY_LIMIT 0x0800 /* ORDERBY+LIMIT on the inner loop */ #define WHERE_RIGHT_JOIN 0x1000 /* Processing a RIGHT JOIN */ - /* 0x2000 not currently used */ +#define WHERE_KEEP_ALL_JOINS 0x2000 /* Do not do the omit-noop-join opt */ #define WHERE_USE_LIMIT 0x4000 /* Use the LIMIT in cost estimates */ /* 0x8000 not currently used */ @@ -3441,13 +3499,14 @@ struct NameContext { #define NC_UUpsert 0x000200 /* True if uNC.pUpsert is used */ #define NC_UBaseReg 0x000400 /* True if uNC.iBaseReg is used */ #define NC_MinMaxAgg 0x001000 /* min/max aggregates seen. See note above */ -#define NC_Complex 0x002000 /* True if a function or subquery seen */ +/* 0x002000 // available for reuse */ #define NC_AllowWin 0x004000 /* Window functions are allowed here */ #define NC_HasWin 0x008000 /* One or more window functions seen */ #define NC_IsDDL 0x010000 /* Resolving names in a CREATE statement */ #define NC_InAggFunc 0x020000 /* True if analyzing arguments to an agg func */ #define NC_FromDDL 0x040000 /* SQL text comes from sqlite_schema */ #define NC_NoSelect 0x080000 /* Do not descend into sub-selects */ +#define NC_Where 0x100000 /* Processing WHERE clause of a SELECT */ #define NC_OrderAgg 0x8000000 /* Has an aggregate other than count/min/max */ /* @@ -3471,6 +3530,7 @@ struct Upsert { Expr *pUpsertWhere; /* WHERE clause for the ON CONFLICT UPDATE */ Upsert *pNextUpsert; /* Next ON CONFLICT clause in the list */ u8 isDoUpdate; /* True for DO UPDATE. False for DO NOTHING */ + u8 isDup; /* True if 2nd or later with same pUpsertIdx */ /* Above this point is the parse tree for the ON CONFLICT clauses. ** The next group of fields stores intermediate data. */ void *pToFree; /* Free memory when deleting the Upsert object */ @@ -3560,14 +3620,17 @@ struct Select { #define SF_View 0x0200000 /* SELECT statement is a view */ #define SF_NoopOrderBy 0x0400000 /* ORDER BY is ignored for this query */ #define SF_UFSrcCheck 0x0800000 /* Check pSrc as required by UPDATE...FROM */ -#define SF_PushDown 0x1000000 /* SELECT has be modified by push-down opt */ +#define SF_PushDown 0x1000000 /* Modified by WHERE-clause push-down opt */ #define SF_MultiPart 0x2000000 /* Has multiple incompatible PARTITIONs */ #define SF_CopyCte 0x4000000 /* SELECT statement is a copy of a CTE */ #define SF_OrderByReqd 0x8000000 /* The ORDER BY clause may not be omitted */ #define SF_UpdateFrom 0x10000000 /* Query originates with UPDATE FROM */ +#define SF_Correlated 0x20000000 /* True if references the outer context */ -/* True if S exists and has SF_NestedFrom */ -#define IsNestedFrom(S) ((S)!=0 && ((S)->selFlags&SF_NestedFrom)!=0) +/* True if SrcItem X is a subquery that has SF_NestedFrom */ +#define IsNestedFrom(X) \ + ((X)->fg.isSubquery && \ + ((X)->u4.pSubq->pSelect->selFlags&SF_NestedFrom)!=0) /* ** The results of a SELECT can be distributed in several ways, as defined @@ -3597,7 +3660,11 @@ struct Select { ** SRT_Set The result must be a single column. Store each ** row of result as the key in table pDest->iSDParm. ** Apply the affinity pDest->affSdst before storing -** results. Used to implement "IN (SELECT ...)". +** results. if pDest->iSDParm2 is positive, then it is +** a regsiter holding a Bloom filter for the IN operator +** that should be populated in addition to the +** pDest->iSDParm table. This SRT is used to +** implement "IN (SELECT ...)". ** ** SRT_EphemTab Create an temporary table pDest->iSDParm and store ** the result there. The cursor is left open after @@ -3804,6 +3871,8 @@ struct Parse { u8 disableLookaside; /* Number of times lookaside has been disabled */ u8 prepFlags; /* SQLITE_PREPARE_* flags */ u8 withinRJSubrtn; /* Nesting level for RIGHT JOIN body subroutines */ + u8 bHasWith; /* True if statement contains WITH */ + u8 mSubrtnSig; /* mini Bloom filter on available SubrtnSig.selId */ #if defined(SQLITE_DEBUG) || defined(SQLITE_COVERAGE_TEST) u8 earlyCleanup; /* OOM inside sqlite3ParserAddCleanup() */ #endif @@ -4099,7 +4168,7 @@ struct Returning { }; /* -** An objected used to accumulate the text of a string where we +** An object used to accumulate the text of a string where we ** do not necessarily know how big the string will be in the end. */ struct sqlite3_str { @@ -4113,7 +4182,7 @@ struct sqlite3_str { }; #define SQLITE_PRINTF_INTERNAL 0x01 /* Internal-use-only converters allowed */ #define SQLITE_PRINTF_SQLFUNC 0x02 /* SQL function arguments to VXPrintf */ -#define SQLITE_PRINTF_MALLOCED 0x04 /* True if xText is allocated space */ +#define SQLITE_PRINTF_MALLOCED 0x04 /* True if zText is allocated space */ #define isMalloced(X) (((X)->printfFlags & SQLITE_PRINTF_MALLOCED)!=0) @@ -4242,6 +4311,11 @@ struct Sqlite3Config { #ifndef SQLITE_UNTESTABLE int (*xTestCallback)(int); /* Invoked by sqlite3FaultSim() */ #endif +#ifdef SQLITE_ALLOW_ROWID_IN_VIEW + u32 mNoVisibleRowid; /* TF_NoVisibleRowid if the ROWID_IN_VIEW + ** feature is disabled. 0 if rowids can + ** occur in views. */ +#endif int bLocaltimeFault; /* True to fail localtime() calls */ int (*xAltLocaltime)(const void*,void*); /* Alternative localtime() routine */ int iOnceResetThreshold; /* When to reset OP_Once counters */ @@ -4478,6 +4552,9 @@ struct Window { ** due to the SQLITE_SUBTYPE flag */ }; +Select *sqlite3MultiValues(Parse *pParse, Select *pLeft, ExprList *pRow); +void sqlite3MultiValuesEnd(Parse *pParse, Select *pVal); + #ifndef SQLITE_OMIT_WINDOWFUNC void sqlite3WindowDelete(sqlite3*, Window*); void sqlite3WindowUnlinkFromSelect(Window*); @@ -4697,10 +4774,13 @@ void sqlite3MutexWarnOnContention(sqlite3_mutex*); # define EXP754 (((u64)0x7ff)<<52) # define MAN754 ((((u64)1)<<52)-1) # define IsNaN(X) (((X)&EXP754)==EXP754 && ((X)&MAN754)!=0) +# define IsOvfl(X) (((X)&EXP754)==EXP754) int sqlite3IsNaN(double); + int sqlite3IsOverflow(double); #else -# define IsNaN(X) 0 -# define sqlite3IsNaN(X) 0 +# define IsNaN(X) 0 +# define sqlite3IsNaN(X) 0 +# define sqlite3IsOVerflow(X) 0 #endif /* @@ -4792,6 +4872,7 @@ int sqlite3ErrorToParser(sqlite3*,int); void sqlite3Dequote(char*); void sqlite3DequoteExpr(Expr*); void sqlite3DequoteToken(Token*); +void sqlite3DequoteNumber(Parse*, Expr*); void sqlite3TokenInit(Token*,char*); int sqlite3KeywordCode(const unsigned char*, int); int sqlite3RunParser(Parse*, const char*); @@ -4822,7 +4903,7 @@ void sqlite3ExprFunctionUsable(Parse*,const Expr*,const FuncDef*); void sqlite3ExprAssignVarNumber(Parse*, Expr*, u32); void sqlite3ExprDelete(sqlite3*, Expr*); void sqlite3ExprDeleteGeneric(sqlite3*,void*); -void sqlite3ExprDeferredDelete(Parse*, Expr*); +int sqlite3ExprDeferredDelete(Parse*, Expr*); void sqlite3ExprUnmapAndDelete(Parse*, Expr*); ExprList *sqlite3ExprListAppend(Parse*,ExprList*,Expr*); ExprList *sqlite3ExprListAppendVector(Parse*,ExprList*,IdList*,Expr*); @@ -4941,6 +5022,9 @@ int sqlite3IdListIndex(IdList*,const char*); SrcList *sqlite3SrcListEnlarge(Parse*, SrcList*, int, int); SrcList *sqlite3SrcListAppendList(Parse *pParse, SrcList *p1, SrcList *p2); SrcList *sqlite3SrcListAppend(Parse*, SrcList*, Token*, Token*); +void sqlite3SubqueryDelete(sqlite3*,Subquery*); +Select *sqlite3SubqueryDetach(sqlite3*,SrcItem*); +int sqlite3SrcItemAttachSubquery(Parse*, SrcItem*, Select*, int); SrcList *sqlite3SrcListAppendFromTerm(Parse*, SrcList*, Token*, Token*, Token*, Select*, OnOrUsing*); void sqlite3SrcListIndexedBy(Parse *, SrcList *, Token *); @@ -4990,6 +5074,7 @@ void sqlite3ExprCodeLoadIndexColumn(Parse*, Index*, 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 sqlite3ExprToRegister(Expr *pExpr, int iReg); void sqlite3ExprCode(Parse*, Expr*, int); #ifndef SQLITE_OMIT_GENERATED_COLUMNS void sqlite3ExprCodeGeneratedColumn(Parse*, Table*, Column*, int); @@ -5045,16 +5130,14 @@ void sqlite3LeaveMutexAndCloseZombie(sqlite3*); u32 sqlite3IsTrueOrFalse(const char*); int sqlite3ExprIdToTrueFalse(Expr*); int sqlite3ExprTruthValue(const Expr*); -int sqlite3ExprIsConstant(Expr*); -int sqlite3ExprIsConstantNotJoin(Expr*); +int sqlite3ExprIsConstant(Parse*,Expr*); int sqlite3ExprIsConstantOrFunction(Expr*, u8); int sqlite3ExprIsConstantOrGroupBy(Parse*, Expr*, ExprList*); -int sqlite3ExprIsTableConstant(Expr*,int); -int sqlite3ExprIsSingleTableConstraint(Expr*,const SrcList*,int); +int sqlite3ExprIsSingleTableConstraint(Expr*,const SrcList*,int,int); #ifdef SQLITE_ENABLE_CURSOR_HINTS int sqlite3ExprContainsSubquery(Expr*); #endif -int sqlite3ExprIsInteger(const Expr*, int*); +int sqlite3ExprIsInteger(const Expr*, int*, Parse*); int sqlite3ExprCanBeNull(const Expr*); int sqlite3ExprNeedsNoAffinityChange(const Expr*, char); int sqlite3IsRowid(const char*); @@ -5235,7 +5318,9 @@ void sqlite3ErrorWithMsg(sqlite3*, int, const char*,...); void sqlite3Error(sqlite3*,int); void sqlite3ErrorClear(sqlite3*); void sqlite3SystemError(sqlite3*,int); +#if !defined(SQLITE_OMIT_BLOB_LITERAL) void *sqlite3HexToBlob(sqlite3*, const char *z, int n); +#endif u8 sqlite3HexToInt(int h); int sqlite3TwoPartName(Parse *, Token *, Token *, Token **); @@ -5546,7 +5631,7 @@ const char *sqlite3JournalModename(int); Upsert *sqlite3UpsertNew(sqlite3*,ExprList*,Expr*,ExprList*,Expr*,Upsert*); void sqlite3UpsertDelete(sqlite3*,Upsert*); Upsert *sqlite3UpsertDup(sqlite3*,Upsert*); - int sqlite3UpsertAnalyzeTarget(Parse*,SrcList*,Upsert*); + int sqlite3UpsertAnalyzeTarget(Parse*,SrcList*,Upsert*,Upsert*); void sqlite3UpsertDoUpdate(Parse*,Upsert*,Table*,Index*,int); Upsert *sqlite3UpsertOfIndex(Upsert*,Index*); int sqlite3UpsertNextIsIPK(Upsert*); |