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author | 2015-09-12 02:08:34 +0000 | |
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committer | 2015-09-12 02:08:34 +0000 | |
commit | 9002a9ec67ed1654a017252f6e4bc93deef91d2a (patch) | |
tree | 775f5d1fe0cf77f56c7617f4e867764206a537c7 /lib/libsqlite3/src/insert.c | |
parent | add missing functions to NAME; (diff) | |
download | wireguard-openbsd-9002a9ec67ed1654a017252f6e4bc93deef91d2a.tar.xz wireguard-openbsd-9002a9ec67ed1654a017252f6e4bc93deef91d2a.zip |
Update sqlite3 to 3.8.11.1. Bump major, regen .pc and header. Changes
available here: http://sqlite.org/changes.html
Tested in bulk by aja@. ok landry@ "Please crank sqlite when you get
this mail." deraadt@
Diffstat (limited to 'lib/libsqlite3/src/insert.c')
-rw-r--r-- | lib/libsqlite3/src/insert.c | 103 |
1 files changed, 71 insertions, 32 deletions
diff --git a/lib/libsqlite3/src/insert.c b/lib/libsqlite3/src/insert.c index a5c3f3e92d4..05d84df844f 100644 --- a/lib/libsqlite3/src/insert.c +++ b/lib/libsqlite3/src/insert.c @@ -42,7 +42,7 @@ void sqlite3OpenTable( }else{ Index *pPk = sqlite3PrimaryKeyIndex(pTab); assert( pPk!=0 ); - assert( pPk->tnum=pTab->tnum ); + assert( pPk->tnum==pTab->tnum ); sqlite3VdbeAddOp3(v, opcode, iCur, pPk->tnum, iDb); sqlite3VdbeSetP4KeyInfo(pParse, pPk); VdbeComment((v, "%s", pTab->zName)); @@ -56,7 +56,7 @@ void sqlite3OpenTable( ** ** Character Column affinity ** ------------------------------ -** 'A' NONE +** 'A' BLOB ** 'B' TEXT ** 'C' NUMERIC ** 'D' INTEGER @@ -99,9 +99,9 @@ const char *sqlite3IndexAffinityStr(Vdbe *v, Index *pIdx){ /* ** Compute the affinity string for table pTab, if it has not already been -** computed. As an optimization, omit trailing SQLITE_AFF_NONE affinities. +** computed. As an optimization, omit trailing SQLITE_AFF_BLOB affinities. ** -** If the affinity exists (if it is no entirely SQLITE_AFF_NONE values) and +** If the affinity exists (if it is no entirely SQLITE_AFF_BLOB values) and ** if iReg>0 then code an OP_Affinity opcode that will set the affinities ** for register iReg and following. Or if affinities exists and iReg==0, ** then just set the P4 operand of the previous opcode (which should be @@ -111,7 +111,7 @@ const char *sqlite3IndexAffinityStr(Vdbe *v, Index *pIdx){ ** ** Character Column affinity ** ------------------------------ -** 'A' NONE +** 'A' BLOB ** 'B' TEXT ** 'C' NUMERIC ** 'D' INTEGER @@ -133,7 +133,7 @@ void sqlite3TableAffinity(Vdbe *v, Table *pTab, int iReg){ } do{ zColAff[i--] = 0; - }while( i>=0 && zColAff[i]==SQLITE_AFF_NONE ); + }while( i>=0 && zColAff[i]==SQLITE_AFF_BLOB ); pTab->zColAff = zColAff; } i = sqlite3Strlen30(zColAff); @@ -342,20 +342,23 @@ static int xferOptimization( /* ** This routine is called to handle SQL of the following forms: ** -** insert into TABLE (IDLIST) values(EXPRLIST) +** insert into TABLE (IDLIST) values(EXPRLIST),(EXPRLIST),... ** insert into TABLE (IDLIST) select +** insert into TABLE (IDLIST) default values ** ** The IDLIST following the table name is always optional. If omitted, -** then a list of all columns for the table is substituted. The IDLIST -** appears in the pColumn parameter. pColumn is NULL if IDLIST is omitted. +** then a list of all (non-hidden) columns for the table is substituted. +** The IDLIST appears in the pColumn parameter. pColumn is NULL if IDLIST +** is omitted. ** -** The pList parameter holds EXPRLIST in the first form of the INSERT -** statement above, and pSelect is NULL. For the second form, pList is -** NULL and pSelect is a pointer to the select statement used to generate -** data for the insert. +** For the pSelect parameter holds the values to be inserted for the +** first two forms shown above. A VALUES clause is really just short-hand +** for a SELECT statement that omits the FROM clause and everything else +** that follows. If the pSelect parameter is NULL, that means that the +** DEFAULT VALUES form of the INSERT statement is intended. ** ** The code generated follows one of four templates. For a simple -** insert with data coming from a VALUES clause, the code executes +** insert with data coming from a single-row VALUES clause, the code executes ** once straight down through. Pseudo-code follows (we call this ** the "1st template"): ** @@ -462,7 +465,7 @@ void sqlite3Insert( u8 useTempTable = 0; /* Store SELECT results in intermediate table */ u8 appendFlag = 0; /* True if the insert is likely to be an append */ u8 withoutRowid; /* 0 for normal table. 1 for WITHOUT ROWID table */ - u8 bIdListInOrder = 1; /* True if IDLIST is in table order */ + u8 bIdListInOrder; /* True if IDLIST is in table order */ ExprList *pList = 0; /* List of VALUES() to be inserted */ /* Register allocations */ @@ -487,8 +490,8 @@ void sqlite3Insert( } /* If the Select object is really just a simple VALUES() list with a - ** single row values (the common case) then keep that one row of values - ** and go ahead and discard the Select object + ** single row (the common case) then keep that one row of values + ** and discard the other (unused) parts of the pSelect object */ if( pSelect && (pSelect->selFlags & SF_Values)!=0 && pSelect->pPrior==0 ){ pList = pSelect->pEList; @@ -596,6 +599,7 @@ void sqlite3Insert( ** is appears in the original table. (The index of the INTEGER ** PRIMARY KEY in the original table is pTab->iPKey.) */ + bIdListInOrder = (pTab->tabFlags & TF_OOOHidden)==0; if( pColumn ){ for(i=0; i<pColumn->nId; i++){ pColumn->a[i].idx = -1; @@ -631,7 +635,8 @@ void sqlite3Insert( ** co-routine is the common header to the 3rd and 4th templates. */ if( pSelect ){ - /* Data is coming from a SELECT. Generate a co-routine to run the SELECT */ + /* Data is coming from a SELECT or from a multi-row VALUES clause. + ** Generate a co-routine to run the SELECT. */ int regYield; /* Register holding co-routine entry-point */ int addrTop; /* Top of the co-routine */ int rc; /* Result code */ @@ -644,8 +649,7 @@ void sqlite3Insert( dest.nSdst = pTab->nCol; rc = sqlite3Select(pParse, pSelect, &dest); regFromSelect = dest.iSdst; - assert( pParse->nErr==0 || rc ); - if( rc || db->mallocFailed ) goto insert_cleanup; + if( rc || db->mallocFailed || pParse->nErr ) goto insert_cleanup; sqlite3VdbeAddOp1(v, OP_EndCoroutine, regYield); sqlite3VdbeJumpHere(v, addrTop - 1); /* label B: */ assert( pSelect->pEList ); @@ -693,8 +697,8 @@ void sqlite3Insert( sqlite3ReleaseTempReg(pParse, regTempRowid); } }else{ - /* This is the case if the data for the INSERT is coming from a VALUES - ** clause + /* This is the case if the data for the INSERT is coming from a + ** single-row VALUES clause */ NameContext sNC; memset(&sNC, 0, sizeof(sNC)); @@ -1377,8 +1381,8 @@ void sqlite3GenerateConstraintChecks( if( pIdx->pPartIdxWhere ){ sqlite3VdbeAddOp2(v, OP_Null, 0, aRegIdx[ix]); pParse->ckBase = regNewData+1; - sqlite3ExprIfFalse(pParse, pIdx->pPartIdxWhere, addrUniqueOk, - SQLITE_JUMPIFNULL); + sqlite3ExprIfFalseDup(pParse, pIdx->pPartIdxWhere, addrUniqueOk, + SQLITE_JUMPIFNULL); pParse->ckBase = 0; } @@ -1765,6 +1769,7 @@ static int xferOptimization( int onError, /* How to handle constraint errors */ int iDbDest /* The database of pDest */ ){ + sqlite3 *db = pParse->db; ExprList *pEList; /* The result set of the SELECT */ Table *pSrc; /* The table in the FROM clause of SELECT */ Index *pSrcIdx, *pDestIdx; /* Source and destination indices */ @@ -1912,11 +1917,11 @@ static int xferOptimization( ** the extra complication to make this rule less restrictive is probably ** not worth the effort. Ticket [6284df89debdfa61db8073e062908af0c9b6118e] */ - if( (pParse->db->flags & SQLITE_ForeignKeys)!=0 && pDest->pFKey!=0 ){ + if( (db->flags & SQLITE_ForeignKeys)!=0 && pDest->pFKey!=0 ){ return 0; } #endif - if( (pParse->db->flags & SQLITE_CountRows)!=0 ){ + if( (db->flags & SQLITE_CountRows)!=0 ){ return 0; /* xfer opt does not play well with PRAGMA count_changes */ } @@ -1927,7 +1932,7 @@ static int xferOptimization( #ifdef SQLITE_TEST sqlite3_xferopt_count++; #endif - iDbSrc = sqlite3SchemaToIndex(pParse->db, pSrc->pSchema); + iDbSrc = sqlite3SchemaToIndex(db, pSrc->pSchema); v = sqlite3GetVdbe(pParse); sqlite3CodeVerifySchema(pParse, iDbSrc); iSrc = pParse->nTab++; @@ -1937,14 +1942,18 @@ static int xferOptimization( regRowid = sqlite3GetTempReg(pParse); sqlite3OpenTable(pParse, iDest, iDbDest, pDest, OP_OpenWrite); assert( HasRowid(pDest) || destHasUniqueIdx ); - if( (pDest->iPKey<0 && pDest->pIndex!=0) /* (1) */ + if( (db->flags & SQLITE_Vacuum)==0 && ( + (pDest->iPKey<0 && pDest->pIndex!=0) /* (1) */ || destHasUniqueIdx /* (2) */ || (onError!=OE_Abort && onError!=OE_Rollback) /* (3) */ - ){ + )){ /* In some circumstances, we are able to run the xfer optimization - ** only if the destination table is initially empty. This code makes - ** that determination. Conditions under which the destination must - ** be empty: + ** only if the destination table is initially empty. Unless the + ** SQLITE_Vacuum flag is set, this block generates code to make + ** that determination. If SQLITE_Vacuum is set, then the destination + ** table is always empty. + ** + ** Conditions under which the destination must be empty: ** ** (1) There is no INTEGER PRIMARY KEY but there are indices. ** (If the destination is not initially empty, the rowid fields @@ -1987,6 +1996,7 @@ static int xferOptimization( sqlite3TableLock(pParse, iDbSrc, pSrc->tnum, 0, pSrc->zName); } for(pDestIdx=pDest->pIndex; pDestIdx; pDestIdx=pDestIdx->pNext){ + u8 idxInsFlags = 0; for(pSrcIdx=pSrc->pIndex; ALWAYS(pSrcIdx); pSrcIdx=pSrcIdx->pNext){ if( xferCompatibleIndex(pDestIdx, pSrcIdx) ) break; } @@ -2000,7 +2010,36 @@ static int xferOptimization( VdbeComment((v, "%s", pDestIdx->zName)); addr1 = sqlite3VdbeAddOp2(v, OP_Rewind, iSrc, 0); VdbeCoverage(v); sqlite3VdbeAddOp2(v, OP_RowKey, iSrc, regData); + if( db->flags & SQLITE_Vacuum ){ + /* This INSERT command is part of a VACUUM operation, which guarantees + ** that the destination table is empty. If all indexed columns use + ** collation sequence BINARY, then it can also be assumed that the + ** index will be populated by inserting keys in strictly sorted + ** order. In this case, instead of seeking within the b-tree as part + ** of every OP_IdxInsert opcode, an OP_Last is added before the + ** OP_IdxInsert to seek to the point within the b-tree where each key + ** should be inserted. This is faster. + ** + ** If any of the indexed columns use a collation sequence other than + ** BINARY, this optimization is disabled. This is because the user + ** might change the definition of a collation sequence and then run + ** a VACUUM command. In that case keys may not be written in strictly + ** sorted order. */ + for(i=0; i<pSrcIdx->nColumn; i++){ + char *zColl = pSrcIdx->azColl[i]; + assert( zColl!=0 ); + if( sqlite3_stricmp("BINARY", zColl) ) break; + } + if( i==pSrcIdx->nColumn ){ + idxInsFlags = OPFLAG_USESEEKRESULT; + sqlite3VdbeAddOp3(v, OP_Last, iDest, 0, -1); + } + } + if( !HasRowid(pSrc) && pDestIdx->idxType==2 ){ + idxInsFlags |= OPFLAG_NCHANGE; + } sqlite3VdbeAddOp3(v, OP_IdxInsert, iDest, regData, 1); + sqlite3VdbeChangeP5(v, idxInsFlags); sqlite3VdbeAddOp2(v, OP_Next, iSrc, addr1+1); VdbeCoverage(v); sqlite3VdbeJumpHere(v, addr1); sqlite3VdbeAddOp2(v, OP_Close, iSrc, 0); |