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Overview
Comment: | Beginning to clean up the trigger code. Still lots of work to do. (CVS 566) |
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Downloads: | Tarball | ZIP archive | SQL archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
b10346818b25940c6dc85e94de8e36d2 |
User & Date: | drh 2002-05-15 12:45:43 |
Context
2002-05-15
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14:17 | Fix for ticket #41: Better handling of CREATE TRIGGER in the sqlite_complete() function. (CVS 567) check-in: f45c4b76 user: drh tags: trunk | |
12:45 | Beginning to clean up the trigger code. Still lots of work to do. (CVS 566) check-in: b1034681 user: drh tags: trunk | |
11:44 | Remove all tabs from the beginning of source code lines. Replace tabs with the appropriate number of spaces. (CVS 565) check-in: 690f9a16 user: drh tags: trunk | |
Changes
Changes to Makefile.template.
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# TCCX = $(TCC) $(OPTS) $(THREADSAFE) $(USLEEP) -I. -I$(TOP)/src # Object files for the SQLite library. # LIBOBJ = btree.o build.o delete.o expr.o func.o hash.o insert.o \ main.o os.o pager.o parse.o printf.o random.o select.o table.o \ tokenize.o update.o util.o vdbe.o where.o tclsqlite.o # All of the source code files. # SRC = \ $(TOP)/src/btree.c \ $(TOP)/src/btree.h \ $(TOP)/src/build.c \ ................................................................................ $(TOP)/src/select.c \ $(TOP)/src/shell.c \ $(TOP)/src/sqlite.h.in \ $(TOP)/src/sqliteInt.h \ $(TOP)/src/table.c \ $(TOP)/src/tclsqlite.c \ $(TOP)/src/tokenize.c \ $(TOP)/src/update.c \ $(TOP)/src/util.c \ $(TOP)/src/vdbe.c \ $(TOP)/src/vdbe.h \ $(TOP)/src/where.c # Source code to the test files. ................................................................................ sqlite.h: $(TOP)/src/sqlite.h.in sed -e s/--VERS--/`cat ${TOP}/VERSION`/ \ -e s/--ENCODING--/$(ENCODING)/ \ $(TOP)/src/sqlite.h.in >sqlite.h tokenize.o: $(TOP)/src/tokenize.c $(HDR) $(TCCX) -c $(TOP)/src/tokenize.c util.o: $(TOP)/src/util.c $(HDR) $(TCCX) -c $(TOP)/src/util.c vdbe.o: $(TOP)/src/vdbe.c $(HDR) $(TCCX) -c $(TOP)/src/vdbe.c |
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# TCCX = $(TCC) $(OPTS) $(THREADSAFE) $(USLEEP) -I. -I$(TOP)/src # Object files for the SQLite library. # LIBOBJ = btree.o build.o delete.o expr.o func.o hash.o insert.o \ main.o os.o pager.o parse.o printf.o random.o select.o table.o \ tokenize.o trigger.o update.o util.o vdbe.o where.o tclsqlite.o # All of the source code files. # SRC = \ $(TOP)/src/btree.c \ $(TOP)/src/btree.h \ $(TOP)/src/build.c \ ................................................................................ $(TOP)/src/select.c \ $(TOP)/src/shell.c \ $(TOP)/src/sqlite.h.in \ $(TOP)/src/sqliteInt.h \ $(TOP)/src/table.c \ $(TOP)/src/tclsqlite.c \ $(TOP)/src/tokenize.c \ $(TOP)/src/trigger.c \ $(TOP)/src/update.c \ $(TOP)/src/util.c \ $(TOP)/src/vdbe.c \ $(TOP)/src/vdbe.h \ $(TOP)/src/where.c # Source code to the test files. ................................................................................ sqlite.h: $(TOP)/src/sqlite.h.in sed -e s/--VERS--/`cat ${TOP}/VERSION`/ \ -e s/--ENCODING--/$(ENCODING)/ \ $(TOP)/src/sqlite.h.in >sqlite.h tokenize.o: $(TOP)/src/tokenize.c $(HDR) $(TCCX) -c $(TOP)/src/tokenize.c trigger.o: $(TOP)/src/trigger.c $(HDR) $(TCCX) -c $(TOP)/src/trigger.c util.o: $(TOP)/src/util.c $(HDR) $(TCCX) -c $(TOP)/src/util.c vdbe.o: $(TOP)/src/vdbe.c $(HDR) $(TCCX) -c $(TOP)/src/vdbe.c |
Changes to src/build.c.
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** COPY ** VACUUM ** BEGIN TRANSACTION ** COMMIT ** ROLLBACK ** PRAGMA ** ** $Id: build.c,v 1.89 2002/05/15 11:44:14 drh Exp $ */ #include "sqliteInt.h" #include <ctype.h> /* ** This routine is called after a single SQL statement has been ** parsed and we want to execute the VDBE code to implement ................................................................................ /* Any triggers that were dropped - put 'em back in place */ for(pElem = sqliteHashFirst(&db->trigDrop); pElem; pElem = sqliteHashNext(pElem)) { Trigger * pTrigger = sqliteHashData(pElem); Table * tab = sqliteFindTable(db, pTrigger->table); sqliteHashInsert(&db->trigHash, pTrigger->name, strlen(pTrigger->name) + 1, pTrigger); pTrigger->pNext = tab->pTrigger; tab->pTrigger = pTrigger; } sqliteHashClear(&db->trigDrop); db->flags &= ~SQLITE_InternChanges; } ................................................................................ ** ** This plan is not completely bullet-proof. It is possible for ** the schema to change multiple times and for the cookie to be ** set back to prior value. But schema changes are infrequent ** and the probability of hitting the same cookie value is only ** 1 chance in 2^32. So we're safe enough. */ void changeCookie(sqlite *db){ if( db->next_cookie==db->schema_cookie ){ db->next_cookie = db->schema_cookie + sqliteRandomByte() + 1; db->flags |= SQLITE_InternChanges; } } /* ................................................................................ }else{ assert( pEnd!=0 ); n = Addr(pEnd->z) - Addr(pParse->sFirstToken.z) + 1; sqliteVdbeChangeP3(v, -1, pParse->sFirstToken.z, n); } sqliteVdbeAddOp(v, OP_MakeRecord, 5, 0); sqliteVdbeAddOp(v, OP_PutIntKey, 0, 0); changeCookie(db); sqliteVdbeAddOp(v, OP_Integer, db->next_cookie, 0); sqliteVdbeAddOp(v, OP_SetCookie, 0, 0); sqliteVdbeAddOp(v, OP_Close, 0, 0); } if( pSelect ){ int op = p->isTemp ? OP_OpenWrAux : OP_OpenWrite; sqliteVdbeAddOp(v, op, 1, 0); ................................................................................ { OP_Integer, 0, 0, 0}, /* 9 */ { OP_SetCookie, 0, 0, 0}, { OP_Close, 0, 0, 0}, }; Index *pIdx; sqliteBeginWriteOperation(pParse); /* Drop all triggers associated with the table being dropped */ while (pTable->pTrigger) { Token tt; tt.z = pTable->pTrigger->name; tt.n = strlen(pTable->pTrigger->name); sqliteDropTrigger(pParse, &tt, 1); } if( !pTable->isTemp ){ base = sqliteVdbeAddOpList(v, ArraySize(dropTable), dropTable); sqliteVdbeChangeP3(v, base+2, pTable->zName, 0); changeCookie(db); sqliteVdbeChangeP1(v, base+9, db->next_cookie); } if( !isView ){ sqliteVdbeAddOp(v, OP_Destroy, pTable->tnum, pTable->isTemp); for(pIdx=pTable->pIndex; pIdx; pIdx=pIdx->pNext){ sqliteVdbeAddOp(v, OP_Destroy, pIdx->tnum, pTable->isTemp); } ................................................................................ sqliteVdbeAddOp(v, OP_Next, 2, lbl1); sqliteVdbeResolveLabel(v, lbl2); sqliteVdbeAddOp(v, OP_Close, 2, 0); sqliteVdbeAddOp(v, OP_Close, 1, 0); } if( pTable!=0 ){ if( !isTemp ){ changeCookie(db); sqliteVdbeAddOp(v, OP_Integer, db->next_cookie, 0); sqliteVdbeAddOp(v, OP_SetCookie, 0, 0); sqliteVdbeAddOp(v, OP_Close, 0, 0); } sqliteEndWriteOperation(pParse); } } ................................................................................ int base; Table *pTab = pIndex->pTable; sqliteBeginWriteOperation(pParse); if( !pTab->isTemp ){ base = sqliteVdbeAddOpList(v, ArraySize(dropIndex), dropIndex); sqliteVdbeChangeP3(v, base+2, pIndex->zName, P3_STATIC); changeCookie(db); sqliteVdbeChangeP1(v, base+10, db->next_cookie); } sqliteVdbeAddOp(v, OP_Destroy, pIndex->tnum, pTab->isTemp); sqliteEndWriteOperation(pParse); } /* Move the index onto the pending DROP queue. Or, if the index was ................................................................................ db->onError = OE_Default; } /* ** Generate VDBE code that prepares for doing an operation that ** might change the database. The operation will be atomic in the ** sense that it will either do its changes completely or not at ** all. So there is not need to set a checkpoint is a transaction ** is already in effect. */ void sqliteBeginWriteOperation(Parse *pParse){ Vdbe *v; v = sqliteGetVdbe(pParse); if( v==0 ) return; if (pParse->trigStack) return; /* if this is in a trigger */ if( (pParse->db->flags & SQLITE_InTrans)==0 ){ sqliteVdbeAddOp(v, OP_Transaction, 0, 0); sqliteVdbeAddOp(v, OP_VerifyCookie, pParse->db->schema_cookie, 0); pParse->schemaVerified = 1; } } ................................................................................ ** of a transaction, then this sets a checkpoint. If we are not in ** a transaction, then start a transaction. */ void sqliteBeginMultiWriteOperation(Parse *pParse){ Vdbe *v; v = sqliteGetVdbe(pParse); if( v==0 ) return; if (pParse->trigStack) return; /* if this is in a trigger */ if( (pParse->db->flags & SQLITE_InTrans)==0 ){ sqliteVdbeAddOp(v, OP_Transaction, 0, 0); sqliteVdbeAddOp(v, OP_VerifyCookie, pParse->db->schema_cookie, 0); pParse->schemaVerified = 1; }else{ sqliteVdbeAddOp(v, OP_Checkpoint, 0, 0); } |
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** COPY ** VACUUM ** BEGIN TRANSACTION ** COMMIT ** ROLLBACK ** PRAGMA ** ** $Id: build.c,v 1.90 2002/05/15 12:45:43 drh Exp $ */ #include "sqliteInt.h" #include <ctype.h> /* ** This routine is called after a single SQL statement has been ** parsed and we want to execute the VDBE code to implement ................................................................................ /* Any triggers that were dropped - put 'em back in place */ for(pElem = sqliteHashFirst(&db->trigDrop); pElem; pElem = sqliteHashNext(pElem)) { Trigger * pTrigger = sqliteHashData(pElem); Table * tab = sqliteFindTable(db, pTrigger->table); sqliteHashInsert(&db->trigHash, pTrigger->name, strlen(pTrigger->name) + 1, pTrigger); pTrigger->pNext = tab->pTrigger; tab->pTrigger = pTrigger; } sqliteHashClear(&db->trigDrop); db->flags &= ~SQLITE_InternChanges; } ................................................................................ ** ** This plan is not completely bullet-proof. It is possible for ** the schema to change multiple times and for the cookie to be ** set back to prior value. But schema changes are infrequent ** and the probability of hitting the same cookie value is only ** 1 chance in 2^32. So we're safe enough. */ void sqliteChangeCookie(sqlite *db){ if( db->next_cookie==db->schema_cookie ){ db->next_cookie = db->schema_cookie + sqliteRandomByte() + 1; db->flags |= SQLITE_InternChanges; } } /* ................................................................................ }else{ assert( pEnd!=0 ); n = Addr(pEnd->z) - Addr(pParse->sFirstToken.z) + 1; sqliteVdbeChangeP3(v, -1, pParse->sFirstToken.z, n); } sqliteVdbeAddOp(v, OP_MakeRecord, 5, 0); sqliteVdbeAddOp(v, OP_PutIntKey, 0, 0); sqliteChangeCookie(db); sqliteVdbeAddOp(v, OP_Integer, db->next_cookie, 0); sqliteVdbeAddOp(v, OP_SetCookie, 0, 0); sqliteVdbeAddOp(v, OP_Close, 0, 0); } if( pSelect ){ int op = p->isTemp ? OP_OpenWrAux : OP_OpenWrite; sqliteVdbeAddOp(v, op, 1, 0); ................................................................................ { OP_Integer, 0, 0, 0}, /* 9 */ { OP_SetCookie, 0, 0, 0}, { OP_Close, 0, 0, 0}, }; Index *pIdx; sqliteBeginWriteOperation(pParse); /* Drop all triggers associated with the table being dropped */ while( pTable->pTrigger ){ Token tt; tt.z = pTable->pTrigger->name; tt.n = strlen(pTable->pTrigger->name); sqliteDropTrigger(pParse, &tt, 1); } if( !pTable->isTemp ){ base = sqliteVdbeAddOpList(v, ArraySize(dropTable), dropTable); sqliteVdbeChangeP3(v, base+2, pTable->zName, 0); sqliteChangeCookie(db); sqliteVdbeChangeP1(v, base+9, db->next_cookie); } if( !isView ){ sqliteVdbeAddOp(v, OP_Destroy, pTable->tnum, pTable->isTemp); for(pIdx=pTable->pIndex; pIdx; pIdx=pIdx->pNext){ sqliteVdbeAddOp(v, OP_Destroy, pIdx->tnum, pTable->isTemp); } ................................................................................ sqliteVdbeAddOp(v, OP_Next, 2, lbl1); sqliteVdbeResolveLabel(v, lbl2); sqliteVdbeAddOp(v, OP_Close, 2, 0); sqliteVdbeAddOp(v, OP_Close, 1, 0); } if( pTable!=0 ){ if( !isTemp ){ sqliteChangeCookie(db); sqliteVdbeAddOp(v, OP_Integer, db->next_cookie, 0); sqliteVdbeAddOp(v, OP_SetCookie, 0, 0); sqliteVdbeAddOp(v, OP_Close, 0, 0); } sqliteEndWriteOperation(pParse); } } ................................................................................ int base; Table *pTab = pIndex->pTable; sqliteBeginWriteOperation(pParse); if( !pTab->isTemp ){ base = sqliteVdbeAddOpList(v, ArraySize(dropIndex), dropIndex); sqliteVdbeChangeP3(v, base+2, pIndex->zName, P3_STATIC); sqliteChangeCookie(db); sqliteVdbeChangeP1(v, base+10, db->next_cookie); } sqliteVdbeAddOp(v, OP_Destroy, pIndex->tnum, pTab->isTemp); sqliteEndWriteOperation(pParse); } /* Move the index onto the pending DROP queue. Or, if the index was ................................................................................ db->onError = OE_Default; } /* ** Generate VDBE code that prepares for doing an operation that ** might change the database. The operation will be atomic in the ** sense that it will either do its changes completely or not at ** all. So there is no need to set a checkpoint is a transaction ** is already in effect. */ void sqliteBeginWriteOperation(Parse *pParse){ Vdbe *v; v = sqliteGetVdbe(pParse); if( v==0 ) return; if( pParse->trigStack ) return; /* if this is in a trigger */ if( (pParse->db->flags & SQLITE_InTrans)==0 ){ sqliteVdbeAddOp(v, OP_Transaction, 0, 0); sqliteVdbeAddOp(v, OP_VerifyCookie, pParse->db->schema_cookie, 0); pParse->schemaVerified = 1; } } ................................................................................ ** of a transaction, then this sets a checkpoint. If we are not in ** a transaction, then start a transaction. */ void sqliteBeginMultiWriteOperation(Parse *pParse){ Vdbe *v; v = sqliteGetVdbe(pParse); if( v==0 ) return; if( pParse->trigStack ) return; /* if this is in a trigger */ if( (pParse->db->flags & SQLITE_InTrans)==0 ){ sqliteVdbeAddOp(v, OP_Transaction, 0, 0); sqliteVdbeAddOp(v, OP_VerifyCookie, pParse->db->schema_cookie, 0); pParse->schemaVerified = 1; }else{ sqliteVdbeAddOp(v, OP_Checkpoint, 0, 0); } |
Changes to src/sqliteInt.h.
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** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** Internal interface definitions for SQLite. ** ** @(#) $Id: sqliteInt.h,v 1.108 2002/05/15 08:30:14 danielk1977 Exp $ */ #include "sqlite.h" #include "hash.h" #include "vdbe.h" #include "parse.h" #include "btree.h" #include <stdio.h> ................................................................................ int nSet; /* Number of sets used so far */ int nAgg; /* Number of aggregate expressions */ AggExpr *aAgg; /* An array of aggregate expressions */ int useAgg; /* If true, extract field values from the aggregator ** while generating expressions. Normally false */ int schemaVerified; /* True if an OP_VerifySchema has been coded someplace ** other than after an OP_Transaction */ TriggerStack * trigStack; }; struct TriggerStack { Trigger * pTrigger; Table * pTab; /* Table that triggers are currently being coded as */ int newIdx; /* Index of "new" temp table */ int oldIdx; /* Index of "old" temp table */ int orconf; /* Current orconf policy */ struct TriggerStack * pNext; }; struct TriggerStep { int op; /* One of TK_DELETE, TK_UPDATE, TK_INSERT, TK_SELECT */ int orconf; Select * pSelect; /* Valid for SELECT and sometimes INSERT steps (when pExprList == 0) */ Token target; /* Valid for DELETE, UPDATE, INSERT steps */ Expr * pWhere; /* Valid for DELETE, UPDATE steps */ ExprList * pExprList; /* Valid for UPDATE statements and sometimes INSERT steps (when pSelect == 0) */ IdList *pIdList; /* Valid for INSERT statements only */ TriggerStep * pNext; /* Next in the link-list */ }; struct Trigger { char * name; /* The name of the trigger */ char * table; /* The table or view to which the trigger applies */ int op; /* One of TK_DELETE, TK_UPDATE, TK_INSERT */ int tr_tm; /* One of TK_BEFORE, TK_AFTER, TK_INSTEAD */ Expr * pWhen; /* The WHEN clause of the expresion (may be NULL) */ IdList * pColumns; /* If this is an UPDATE OF <column-list> trigger, the column names are stored in this list */ int foreach; /* One of TK_ROW or TK_STATEMENT */ TriggerStep * step_list; /* Link list of trigger program steps */ char * strings; /* pointer to the allocation of Token strings */ Trigger * pNext; /* Next trigger associated with the table */ int isCommit; }; TriggerStep * sqliteTriggerSelectStep(Select *); TriggerStep * sqliteTriggerInsertStep(Token *, IdList *, ExprList *, Select *, int); TriggerStep * sqliteTriggerUpdateStep(Token *, ExprList *, Expr *, int); TriggerStep * sqliteTriggerDeleteStep(Token *, Expr *); extern int always_code_trigger_setup; void sqliteCreateTrigger(Parse * ,Token *, int, int, IdList *, Token *, int, Expr *, TriggerStep *, char const *,int); void sqliteDropTrigger(Parse *, Token *, int); int sqliteTriggersExist( Parse * , Trigger * , int , int , int, ExprList * ); int sqliteCodeRowTrigger( Parse * pParse, int op, ExprList *, int tr_tm, Table * tbl, int newTable, int oldTable, int onError); void sqliteViewTriggers(Parse *, Table *, Expr *, int, ExprList *); /* ** Internal function prototypes */ int sqliteStrICmp(const char *, const char *); int sqliteStrNICmp(const char *, const char *, int); int sqliteHashNoCase(const char *, int); ................................................................................ IdList *sqliteIdListDup(IdList*); Select *sqliteSelectDup(Select*); FuncDef *sqliteFindFunction(sqlite*,const char*,int,int,int); void sqliteRegisterBuildinFunctions(sqlite*); int sqliteSafetyOn(sqlite*); int sqliteSafetyOff(sqlite*); int sqliteSafetyCheck(sqlite*); void changeCookie(sqlite *); |
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** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** Internal interface definitions for SQLite. ** ** @(#) $Id: sqliteInt.h,v 1.109 2002/05/15 12:45:43 drh Exp $ */ #include "sqlite.h" #include "hash.h" #include "vdbe.h" #include "parse.h" #include "btree.h" #include <stdio.h> ................................................................................ int nSet; /* Number of sets used so far */ int nAgg; /* Number of aggregate expressions */ AggExpr *aAgg; /* An array of aggregate expressions */ int useAgg; /* If true, extract field values from the aggregator ** while generating expressions. Normally false */ int schemaVerified; /* True if an OP_VerifySchema has been coded someplace ** other than after an OP_Transaction */ TriggerStack *trigStack; }; struct TriggerStack { Trigger *pTrigger; Table *pTab; /* Table that triggers are currently being coded as */ int newIdx; /* Index of "new" temp table */ int oldIdx; /* Index of "old" temp table */ int orconf; /* Current orconf policy */ TriggerStack *pNext; }; struct TriggerStep { int op; /* One of TK_DELETE, TK_UPDATE, TK_INSERT, TK_SELECT */ int orconf; Select *pSelect; /* Valid for SELECT and sometimes INSERT steps (when pExprList == 0) */ Token target; /* Valid for DELETE, UPDATE, INSERT steps */ Expr *pWhere; /* Valid for DELETE, UPDATE steps */ ExprList *pExprList; /* Valid for UPDATE statements and sometimes INSERT steps (when pSelect == 0) */ IdList *pIdList; /* Valid for INSERT statements only */ TriggerStep * pNext; /* Next in the link-list */ }; struct Trigger { char *name; /* The name of the trigger */ char *table; /* The table or view to which the trigger applies */ int op; /* One of TK_DELETE, TK_UPDATE, TK_INSERT */ int tr_tm; /* One of TK_BEFORE, TK_AFTER, TK_INSTEAD */ Expr *pWhen; /* The WHEN clause of the expresion (may be NULL) */ IdList *pColumns; /* If this is an UPDATE OF <column-list> trigger, the column names are stored in this list */ int foreach; /* One of TK_ROW or TK_STATEMENT */ TriggerStep *step_list; /* Link list of trigger program steps */ char *strings; /* pointer to allocation of Token strings */ Trigger *pNext; /* Next trigger associated with the table */ int isCommit; }; extern int always_code_trigger_setup; /* ** Internal function prototypes */ int sqliteStrICmp(const char *, const char *); int sqliteStrNICmp(const char *, const char *, int); int sqliteHashNoCase(const char *, int); ................................................................................ IdList *sqliteIdListDup(IdList*); Select *sqliteSelectDup(Select*); FuncDef *sqliteFindFunction(sqlite*,const char*,int,int,int); void sqliteRegisterBuildinFunctions(sqlite*); int sqliteSafetyOn(sqlite*); int sqliteSafetyOff(sqlite*); int sqliteSafetyCheck(sqlite*); void sqliteChangeCookie(sqlite *); void sqliteCreateTrigger(Parse*, Token*, int, int, IdList*, Token*, int, Expr*, TriggerStep*, char const*,int); void sqliteDropTrigger(Parse*, Token*, int); int sqliteTriggersExist(Parse* , Trigger* , int , int , int, ExprList*); int sqliteCodeRowTrigger(Parse*, int, ExprList*, int, Table *, int, int, int); void sqliteViewTriggers(Parse*, Table*, Expr*, int, ExprList*); TriggerStep *sqliteTriggerSelectStep(Select*); TriggerStep *sqliteTriggerInsertStep(Token*, IdList*, ExprList*, Select*, int); TriggerStep *sqliteTriggerUpdateStep(Token*, ExprList*, Expr*, int); TriggerStep *sqliteTriggerDeleteStep(Token*, Expr*); |
Changes to src/trigger.c.
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sqliteVdbeAddOp(pParse->pVdbe, OP_Integer, 0, 0); sqliteVdbeAddOp(pParse->pVdbe, OP_String, 0, 0); sqliteVdbeChangeP3(pParse->pVdbe, -1, nt->strings, 0); sqliteVdbeAddOp(pParse->pVdbe, OP_MakeRecord, 5, 0); sqliteVdbeAddOp(pParse->pVdbe, OP_PutIntKey, 0, 1); /* Change the cookie, since the schema is changed */ changeCookie(pParse->db); sqliteVdbeAddOp(pParse->pVdbe, OP_Integer, pParse->db->next_cookie, 0); sqliteVdbeAddOp(pParse->pVdbe, OP_SetCookie, 0, 0); sqliteVdbeAddOp(pParse->pVdbe, OP_Close, 0, 0); sqliteEndWriteOperation(pParse); } ................................................................................ { OP_Delete, 0, 0, 0}, { OP_Next, 0, ADDR(4), 0}, /* 8 */ { OP_Integer, 0, 0, 0}, /* 9 */ { OP_SetCookie, 0, 0, 0}, { OP_Close, 0, 0, 0}, }; if (!nested) sqliteBeginWriteOperation(pParse); base = sqliteVdbeAddOpList(pParse->pVdbe, ArraySize(dropTrigger), dropTrigger); sqliteVdbeChangeP3(pParse->pVdbe, base+2, tmp_name, 0); if (!nested) changeCookie(pParse->db); sqliteVdbeChangeP1(pParse->pVdbe, base+9, pParse->db->next_cookie); if (!nested) sqliteEndWriteOperation(pParse); } sqliteFree(tmp_name); } static int checkColumnOverLap(IdList * ii, ExprList * ee) { |
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sqliteVdbeAddOp(pParse->pVdbe, OP_Integer, 0, 0); sqliteVdbeAddOp(pParse->pVdbe, OP_String, 0, 0); sqliteVdbeChangeP3(pParse->pVdbe, -1, nt->strings, 0); sqliteVdbeAddOp(pParse->pVdbe, OP_MakeRecord, 5, 0); sqliteVdbeAddOp(pParse->pVdbe, OP_PutIntKey, 0, 1); /* Change the cookie, since the schema is changed */ sqliteChangeCookie(pParse->db); sqliteVdbeAddOp(pParse->pVdbe, OP_Integer, pParse->db->next_cookie, 0); sqliteVdbeAddOp(pParse->pVdbe, OP_SetCookie, 0, 0); sqliteVdbeAddOp(pParse->pVdbe, OP_Close, 0, 0); sqliteEndWriteOperation(pParse); } ................................................................................ { OP_Delete, 0, 0, 0}, { OP_Next, 0, ADDR(4), 0}, /* 8 */ { OP_Integer, 0, 0, 0}, /* 9 */ { OP_SetCookie, 0, 0, 0}, { OP_Close, 0, 0, 0}, }; if( !nested ){ sqliteBeginWriteOperation(pParse); } base = sqliteVdbeAddOpList(pParse->pVdbe, ArraySize(dropTrigger), dropTrigger); sqliteVdbeChangeP3(pParse->pVdbe, base+2, tmp_name, 0); if( !nested ){ sqliteChangeCookie(pParse->db); } sqliteVdbeChangeP1(pParse->pVdbe, base+9, pParse->db->next_cookie); if( !nested ){ sqliteEndWriteOperation(pParse); } } sqliteFree(tmp_name); } static int checkColumnOverLap(IdList * ii, ExprList * ee) { |