mirror of
https://github.com/php/php-src.git
synced 2025-08-20 09:24:05 +02:00
Update bundled library to version 2.8.2.
Make OnUpdateInt compatible with ZE2. Fix the makefile fragment for non-gnu makes
This commit is contained in:
Wez Furlong
parent
82a1818fde
commit
80e7f7001d
42 changed files with 11143 additions and 7558 deletions
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@ -16,53 +16,38 @@
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*/
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#include "sqliteInt.h"
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/*
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** Given a table name, find the corresponding table and make sure the
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** table is writeable. Generate an error and return NULL if not. If
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** everything checks out, return a pointer to the Table structure.
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** Look up every table that is named in pSrc. If any table is not found,
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** add an error message to pParse->zErrMsg and return NULL. If all tables
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** are found, return a pointer to the last table.
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*/
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Table *sqliteTableNameToTable(Parse *pParse, const char *zTab){
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Table *pTab;
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pTab = sqliteFindTable(pParse->db, zTab);
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if( pTab==0 ){
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sqliteSetString(&pParse->zErrMsg, "no such table: ", zTab, 0);
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pParse->nErr++;
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return 0;
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}
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if( pTab->readOnly || pTab->pSelect ){
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sqliteSetString(&pParse->zErrMsg,
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pTab->pSelect ? "view " : "table ",
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zTab,
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" may not be modified", 0);
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pParse->nErr++;
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return 0;
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Table *sqliteSrcListLookup(Parse *pParse, SrcList *pSrc){
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Table *pTab = 0;
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int i;
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for(i=0; i<pSrc->nSrc; i++){
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const char *zTab = pSrc->a[i].zName;
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const char *zDb = pSrc->a[i].zDatabase;
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pTab = sqliteLocateTable(pParse, zTab, zDb);
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pSrc->a[i].pTab = pTab;
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}
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return pTab;
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}
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/*
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** Given a table name, check to make sure the table exists, is writable
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** and is not a view. If everything is OK, construct an SrcList holding
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** the table and return a pointer to the SrcList. The calling function
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** is responsible for freeing the SrcList when it has finished with it.
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** If there is an error, leave a message on pParse->zErrMsg and return
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** NULL.
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** Check to make sure the given table is writable. If it is not
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** writable, generate an error message and return 1. If it is
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** writable return 0;
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*/
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SrcList *sqliteTableTokenToSrcList(Parse *pParse, Token *pTableName){
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Table *pTab;
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SrcList *pTabList;
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pTabList = sqliteSrcListAppend(0, pTableName);
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if( pTabList==0 ) return 0;
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assert( pTabList->nSrc==1 );
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pTab = sqliteTableNameToTable(pParse, pTabList->a[0].zName);
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if( pTab==0 ){
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sqliteSrcListDelete(pTabList);
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return 0;
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int sqliteIsReadOnly(Parse *pParse, Table *pTab, int viewOk){
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if( pTab->readOnly ){
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sqliteErrorMsg(pParse, "table %s may not be modified", pTab->zName);
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return 1;
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}
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pTabList->a[0].pTab = pTab;
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return pTabList;
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if( !viewOk && pTab->pSelect ){
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sqliteErrorMsg(pParse, "cannot modify %s because it is a view",pTab->zName);
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return 1;
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}
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return 0;
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}
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/*
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@ -70,62 +55,59 @@ SrcList *sqliteTableTokenToSrcList(Parse *pParse, Token *pTableName){
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*/
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void sqliteDeleteFrom(
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Parse *pParse, /* The parser context */
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Token *pTableName, /* The table from which we should delete things */
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SrcList *pTabList, /* The table from which we should delete things */
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Expr *pWhere /* The WHERE clause. May be null */
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){
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Vdbe *v; /* The virtual database engine */
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Table *pTab; /* The table from which records will be deleted */
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char *zTab; /* Name of the table from which we are deleting */
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SrcList *pTabList; /* A fake FROM clause holding just pTab */
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const char *zDb; /* Name of database holding pTab */
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int end, addr; /* A couple addresses of generated code */
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int i; /* Loop counter */
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WhereInfo *pWInfo; /* Information about the WHERE clause */
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Index *pIdx; /* For looping over indices of the table */
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int base; /* Index of the first available table cursor */
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int iCur; /* VDBE Cursor number for pTab */
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sqlite *db; /* Main database structure */
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int openOp; /* Opcode used to open a cursor to the table */
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int isView; /* True if attempting to delete from a view */
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AuthContext sContext; /* Authorization context */
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int row_triggers_exist = 0;
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int oldIdx = -1;
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int row_triggers_exist = 0; /* True if any triggers exist */
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int before_triggers; /* True if there are BEFORE triggers */
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int after_triggers; /* True if there are AFTER triggers */
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int oldIdx = -1; /* Cursor for the OLD table of AFTER triggers */
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sContext.pParse = 0;
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if( pParse->nErr || sqlite_malloc_failed ){
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pTabList = 0;
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goto delete_from_cleanup;
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}
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db = pParse->db;
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/* Check for the special case of a VIEW with one or more ON DELETE triggers
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** defined
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*/
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zTab = sqliteTableNameFromToken(pTableName);
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if( zTab != 0 ){
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pTab = sqliteFindTable(pParse->db, zTab);
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if( pTab ){
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row_triggers_exist =
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sqliteTriggersExist(pParse, pTab->pTrigger,
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TK_DELETE, TK_BEFORE, TK_ROW, 0) ||
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sqliteTriggersExist(pParse, pTab->pTrigger,
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TK_DELETE, TK_AFTER, TK_ROW, 0);
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}
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sqliteFree(zTab);
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if( row_triggers_exist && pTab->pSelect ){
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/* Just fire VIEW triggers */
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sqliteViewTriggers(pParse, pTab, pWhere, OE_Replace, 0);
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return;
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}
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}
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assert( pTabList->nSrc==1 );
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/* Locate the table which we want to delete. This table has to be
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** put in an SrcList structure because some of the subroutines we
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** will be calling are designed to work with multiple tables and expect
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** an SrcList* parameter instead of just a Table* parameter.
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*/
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pTabList = sqliteTableTokenToSrcList(pParse, pTableName);
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if( pTabList==0 ) goto delete_from_cleanup;
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assert( pTabList->nSrc==1 );
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pTab = pTabList->a[0].pTab;
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assert( pTab->pSelect==0 ); /* This table is not a view */
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if( sqliteAuthCheck(pParse, SQLITE_DELETE, pTab->zName, 0) ){
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pTab = sqliteSrcListLookup(pParse, pTabList);
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if( pTab==0 ) goto delete_from_cleanup;
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before_triggers = sqliteTriggersExist(pParse, pTab->pTrigger,
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TK_DELETE, TK_BEFORE, TK_ROW, 0);
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after_triggers = sqliteTriggersExist(pParse, pTab->pTrigger,
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TK_DELETE, TK_AFTER, TK_ROW, 0);
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row_triggers_exist = before_triggers || after_triggers;
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isView = pTab->pSelect!=0;
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if( sqliteIsReadOnly(pParse, pTab, before_triggers) ){
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goto delete_from_cleanup;
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}
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assert( pTab->iDb<db->nDb );
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zDb = db->aDb[pTab->iDb].zName;
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if( sqliteAuthCheck(pParse, SQLITE_DELETE, pTab->zName, 0, zDb) ){
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goto delete_from_cleanup;
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}
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/* If pTab is really a view, make sure it has been initialized.
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*/
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if( isView && sqliteViewGetColumnNames(pParse, pTab) ){
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goto delete_from_cleanup;
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}
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@ -137,9 +119,10 @@ void sqliteDeleteFrom(
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/* Resolve the column names in all the expressions.
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*/
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base = pParse->nTab++;
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assert( pTabList->nSrc==1 );
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iCur = pTabList->a[0].iCursor = pParse->nTab++;
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if( pWhere ){
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if( sqliteExprResolveIds(pParse, base, pTabList, 0, pWhere) ){
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if( sqliteExprResolveIds(pParse, pTabList, 0, pWhere) ){
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goto delete_from_cleanup;
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}
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if( sqliteExprCheck(pParse, pWhere, 0, 0) ){
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@ -147,14 +130,28 @@ void sqliteDeleteFrom(
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}
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}
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/* Start the view context
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*/
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if( isView ){
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sqliteAuthContextPush(pParse, &sContext, pTab->zName);
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}
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/* Begin generating code.
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*/
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v = sqliteGetVdbe(pParse);
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if( v==0 ){
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goto delete_from_cleanup;
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}
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sqliteBeginWriteOperation(pParse, row_triggers_exist,
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!row_triggers_exist && pTab->isTemp);
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sqliteBeginWriteOperation(pParse, row_triggers_exist, pTab->iDb);
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/* If we are trying to delete from a view, construct that view into
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** a temporary table.
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*/
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if( isView ){
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Select *pView = sqliteSelectDup(pTab->pSelect);
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sqliteSelect(pParse, pView, SRT_TempTable, iCur, 0, 0, 0);
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sqliteSelectDelete(pView);
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}
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/* Initialize the counter of the number of rows deleted, if
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** we are counting rows.
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@ -173,17 +170,21 @@ void sqliteDeleteFrom(
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** entries in the table. */
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int endOfLoop = sqliteVdbeMakeLabel(v);
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int addr;
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openOp = pTab->isTemp ? OP_OpenAux : OP_Open;
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sqliteVdbeAddOp(v, openOp, base, pTab->tnum);
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sqliteVdbeAddOp(v, OP_Rewind, base, sqliteVdbeCurrentAddr(v)+2);
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if( !isView ){
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sqliteVdbeAddOp(v, OP_Integer, pTab->iDb, 0);
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sqliteVdbeAddOp(v, OP_OpenRead, iCur, pTab->tnum);
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}
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sqliteVdbeAddOp(v, OP_Rewind, iCur, sqliteVdbeCurrentAddr(v)+2);
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addr = sqliteVdbeAddOp(v, OP_AddImm, 1, 0);
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sqliteVdbeAddOp(v, OP_Next, base, addr);
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sqliteVdbeAddOp(v, OP_Next, iCur, addr);
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sqliteVdbeResolveLabel(v, endOfLoop);
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sqliteVdbeAddOp(v, OP_Close, base, 0);
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sqliteVdbeAddOp(v, OP_Close, iCur, 0);
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}
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sqliteVdbeAddOp(v, OP_Clear, pTab->tnum, pTab->isTemp);
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for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
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sqliteVdbeAddOp(v, OP_Clear, pIdx->tnum, pTab->isTemp);
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if( !isView ){
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sqliteVdbeAddOp(v, OP_Clear, pTab->tnum, pTab->iDb);
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for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
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sqliteVdbeAddOp(v, OP_Clear, pIdx->tnum, pIdx->iDb);
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}
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}
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}
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@ -193,7 +194,7 @@ void sqliteDeleteFrom(
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else{
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/* Begin the database scan
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*/
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pWInfo = sqliteWhereBegin(pParse, base, pTabList, pWhere, 1, 0);
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pWInfo = sqliteWhereBegin(pParse, pTabList, pWhere, 1, 0);
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if( pWInfo==0 ) goto delete_from_cleanup;
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/* Remember the key of every item to be deleted.
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@ -207,6 +208,12 @@ void sqliteDeleteFrom(
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*/
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sqliteWhereEnd(pWInfo);
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/* Open the pseudo-table used to store OLD if there are triggers.
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*/
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if( row_triggers_exist ){
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sqliteVdbeAddOp(v, OP_OpenPseudo, oldIdx, 0);
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}
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/* Delete every item whose key was written to the list during the
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** database scan. We have to delete items after the scan is complete
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** because deleting an item can change the scan order.
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@ -220,60 +227,59 @@ void sqliteDeleteFrom(
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if( row_triggers_exist ){
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addr = sqliteVdbeAddOp(v, OP_ListRead, 0, end);
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sqliteVdbeAddOp(v, OP_Dup, 0, 0);
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openOp = pTab->isTemp ? OP_OpenAux : OP_Open;
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sqliteVdbeAddOp(v, openOp, base, pTab->tnum);
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sqliteVdbeAddOp(v, OP_MoveTo, base, 0);
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sqliteVdbeAddOp(v, OP_OpenTemp, oldIdx, 0);
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sqliteVdbeAddOp(v, OP_Integer, 13, 0);
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for(i = 0; i<pTab->nCol; i++){
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if( i==pTab->iPKey ){
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sqliteVdbeAddOp(v, OP_Recno, base, 0);
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} else {
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sqliteVdbeAddOp(v, OP_Column, base, i);
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}
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if( !isView ){
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sqliteVdbeAddOp(v, OP_Integer, pTab->iDb, 0);
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sqliteVdbeAddOp(v, OP_OpenRead, iCur, pTab->tnum);
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}
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sqliteVdbeAddOp(v, OP_MakeRecord, pTab->nCol, 0);
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sqliteVdbeAddOp(v, OP_MoveTo, iCur, 0);
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sqliteVdbeAddOp(v, OP_Recno, iCur, 0);
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sqliteVdbeAddOp(v, OP_RowData, iCur, 0);
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sqliteVdbeAddOp(v, OP_PutIntKey, oldIdx, 0);
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sqliteVdbeAddOp(v, OP_Close, base, 0);
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sqliteVdbeAddOp(v, OP_Rewind, oldIdx, 0);
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if( !isView ){
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sqliteVdbeAddOp(v, OP_Close, iCur, 0);
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}
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sqliteCodeRowTrigger(pParse, TK_DELETE, 0, TK_BEFORE, pTab, -1,
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oldIdx, (pParse->trigStack)?pParse->trigStack->orconf:OE_Default,
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addr);
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}
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/* Open cursors for the table we are deleting from and all its
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** indices. If there are row triggers, this happens inside the
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** OP_ListRead loop because the cursor have to all be closed
|
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** before the trigger fires. If there are no row triggers, the
|
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** cursors are opened only once on the outside the loop.
|
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*/
|
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pParse->nTab = base + 1;
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openOp = pTab->isTemp ? OP_OpenWrAux : OP_OpenWrite;
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sqliteVdbeAddOp(v, openOp, base, pTab->tnum);
|
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for(i=1, pIdx=pTab->pIndex; pIdx; i++, pIdx=pIdx->pNext){
|
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sqliteVdbeAddOp(v, openOp, pParse->nTab++, pIdx->tnum);
|
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}
|
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if( !isView ){
|
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/* Open cursors for the table we are deleting from and all its
|
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** indices. If there are row triggers, this happens inside the
|
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** OP_ListRead loop because the cursor have to all be closed
|
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** before the trigger fires. If there are no row triggers, the
|
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** cursors are opened only once on the outside the loop.
|
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*/
|
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pParse->nTab = iCur + 1;
|
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sqliteVdbeAddOp(v, OP_Integer, pTab->iDb, 0);
|
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sqliteVdbeAddOp(v, OP_OpenWrite, iCur, pTab->tnum);
|
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for(i=1, pIdx=pTab->pIndex; pIdx; i++, pIdx=pIdx->pNext){
|
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sqliteVdbeAddOp(v, OP_Integer, pIdx->iDb, 0);
|
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sqliteVdbeAddOp(v, OP_OpenWrite, pParse->nTab++, pIdx->tnum);
|
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}
|
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|
||||
/* This is the beginning of the delete loop when there are no
|
||||
** row triggers */
|
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if( !row_triggers_exist ){
|
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addr = sqliteVdbeAddOp(v, OP_ListRead, 0, end);
|
||||
}
|
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/* This is the beginning of the delete loop when there are no
|
||||
** row triggers */
|
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if( !row_triggers_exist ){
|
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addr = sqliteVdbeAddOp(v, OP_ListRead, 0, end);
|
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}
|
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|
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/* Delete the row */
|
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sqliteGenerateRowDelete(db, v, pTab, base, pParse->trigStack==0);
|
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/* Delete the row */
|
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sqliteGenerateRowDelete(db, v, pTab, iCur, pParse->trigStack==0);
|
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}
|
||||
|
||||
/* If there are row triggers, close all cursors then invoke
|
||||
** the AFTER triggers
|
||||
*/
|
||||
if( row_triggers_exist ){
|
||||
for(i=1, pIdx=pTab->pIndex; pIdx; i++, pIdx=pIdx->pNext){
|
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sqliteVdbeAddOp(v, OP_Close, base + i, pIdx->tnum);
|
||||
if( !isView ){
|
||||
for(i=1, pIdx=pTab->pIndex; pIdx; i++, pIdx=pIdx->pNext){
|
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sqliteVdbeAddOp(v, OP_Close, iCur + i, pIdx->tnum);
|
||||
}
|
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sqliteVdbeAddOp(v, OP_Close, iCur, 0);
|
||||
}
|
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sqliteVdbeAddOp(v, OP_Close, base, 0);
|
||||
sqliteCodeRowTrigger(pParse, TK_DELETE, 0, TK_AFTER, pTab, -1,
|
||||
oldIdx, (pParse->trigStack)?pParse->trigStack->orconf:OE_Default,
|
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addr);
|
||||
|
|
@ -287,10 +293,10 @@ void sqliteDeleteFrom(
|
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/* Close the cursors after the loop if there are no row triggers */
|
||||
if( !row_triggers_exist ){
|
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for(i=1, pIdx=pTab->pIndex; pIdx; i++, pIdx=pIdx->pNext){
|
||||
sqliteVdbeAddOp(v, OP_Close, base + i, pIdx->tnum);
|
||||
sqliteVdbeAddOp(v, OP_Close, iCur + i, pIdx->tnum);
|
||||
}
|
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sqliteVdbeAddOp(v, OP_Close, base, 0);
|
||||
pParse->nTab = base;
|
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sqliteVdbeAddOp(v, OP_Close, iCur, 0);
|
||||
pParse->nTab = iCur;
|
||||
}
|
||||
}
|
||||
sqliteEndWriteOperation(pParse);
|
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|
|
@ -305,6 +311,7 @@ void sqliteDeleteFrom(
|
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}
|
||||
|
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delete_from_cleanup:
|
||||
sqliteAuthContextPop(&sContext);
|
||||
sqliteSrcListDelete(pTabList);
|
||||
sqliteExprDelete(pWhere);
|
||||
return;
|
||||
|
|
@ -334,13 +341,13 @@ void sqliteGenerateRowDelete(
|
|||
sqlite *db, /* The database containing the index */
|
||||
Vdbe *v, /* Generate code into this VDBE */
|
||||
Table *pTab, /* Table containing the row to be deleted */
|
||||
int base, /* Cursor number for the table */
|
||||
int iCur, /* Cursor number for the table */
|
||||
int count /* Increment the row change counter */
|
||||
){
|
||||
int addr;
|
||||
addr = sqliteVdbeAddOp(v, OP_NotExists, base, 0);
|
||||
sqliteGenerateRowIndexDelete(db, v, pTab, base, 0);
|
||||
sqliteVdbeAddOp(v, OP_Delete, base, count);
|
||||
addr = sqliteVdbeAddOp(v, OP_NotExists, iCur, 0);
|
||||
sqliteGenerateRowIndexDelete(db, v, pTab, iCur, 0);
|
||||
sqliteVdbeAddOp(v, OP_Delete, iCur, count);
|
||||
sqliteVdbeChangeP2(v, addr, sqliteVdbeCurrentAddr(v));
|
||||
}
|
||||
|
||||
|
|
@ -352,19 +359,19 @@ void sqliteGenerateRowDelete(
|
|||
** These are the requirements:
|
||||
**
|
||||
** 1. A read/write cursor pointing to pTab, the table containing the row
|
||||
** to be deleted, must be opened as cursor number "base".
|
||||
** to be deleted, must be opened as cursor number "iCur".
|
||||
**
|
||||
** 2. Read/write cursors for all indices of pTab must be open as
|
||||
** cursor number base+i for the i-th index.
|
||||
** cursor number iCur+i for the i-th index.
|
||||
**
|
||||
** 3. The "base" cursor must be pointing to the row that is to be
|
||||
** 3. The "iCur" cursor must be pointing to the row that is to be
|
||||
** deleted.
|
||||
*/
|
||||
void sqliteGenerateRowIndexDelete(
|
||||
sqlite *db, /* The database containing the index */
|
||||
Vdbe *v, /* Generate code into this VDBE */
|
||||
Table *pTab, /* Table containing the row to be deleted */
|
||||
int base, /* Cursor number for the table */
|
||||
int iCur, /* Cursor number for the table */
|
||||
char *aIdxUsed /* Only delete if aIdxUsed!=0 && aIdxUsed[i]!=0 */
|
||||
){
|
||||
int i;
|
||||
|
|
@ -373,17 +380,17 @@ void sqliteGenerateRowIndexDelete(
|
|||
for(i=1, pIdx=pTab->pIndex; pIdx; i++, pIdx=pIdx->pNext){
|
||||
int j;
|
||||
if( aIdxUsed!=0 && aIdxUsed[i-1]==0 ) continue;
|
||||
sqliteVdbeAddOp(v, OP_Recno, base, 0);
|
||||
sqliteVdbeAddOp(v, OP_Recno, iCur, 0);
|
||||
for(j=0; j<pIdx->nColumn; j++){
|
||||
int idx = pIdx->aiColumn[j];
|
||||
if( idx==pTab->iPKey ){
|
||||
sqliteVdbeAddOp(v, OP_Dup, j, 0);
|
||||
}else{
|
||||
sqliteVdbeAddOp(v, OP_Column, base, idx);
|
||||
sqliteVdbeAddOp(v, OP_Column, iCur, idx);
|
||||
}
|
||||
}
|
||||
sqliteVdbeAddOp(v, OP_MakeIdxKey, pIdx->nColumn, 0);
|
||||
if( db->file_format>=4 ) sqliteAddIdxKeyType(v, pIdx);
|
||||
sqliteVdbeAddOp(v, OP_IdxDelete, base+i, 0);
|
||||
sqliteVdbeAddOp(v, OP_IdxDelete, iCur+i, 0);
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue