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Record the database name in addition to the table name for DELETE, INSERT,

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and UPDATE statements. (CVS 879)

FossilOrigin-Name: a5d8fc95ee58dc3205a0bbbcadaa3b9c902a941b
This commit is contained in:
drh
2003-03-20 01:16:58 +00:00
parent 001bbcbb8f
commit 113088ec68
13 changed files with 169 additions and 138 deletions
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42
src/delete.c
View File

@@ -12,7 +12,7 @@
** This file contains C code routines that are called by the parser
** to handle DELETE FROM statements.
**
** $Id: delete.c,v 1.46 2003/03/19 03:14:01 drh Exp $
** $Id: delete.c,v 1.47 2003/03/20 01:16:59 drh Exp $
*/
#include "sqliteInt.h"
@@ -41,42 +41,17 @@ Table *sqliteTableNameToTable(Parse *pParse, const char *zTab){
return pTab;
}
/*
** Given a table name, check to make sure the table exists, is writable
** and is not a view. If everything is OK, construct an SrcList holding
** the table and return a pointer to the SrcList. The calling function
** is responsible for freeing the SrcList when it has finished with it.
** If there is an error, leave a message on pParse->zErrMsg and return
** NULL.
*/
SrcList *sqliteTableTokenToSrcList(Parse *pParse, Token *pTableName){
Table *pTab;
SrcList *pTabList;
pTabList = sqliteSrcListAppend(0, pTableName);
if( pTabList==0 ) return 0;
assert( pTabList->nSrc==1 );
pTab = sqliteTableNameToTable(pParse, pTabList->a[0].zName);
if( pTab==0 ){
sqliteSrcListDelete(pTabList);
return 0;
}
pTabList->a[0].pTab = pTab;
return pTabList;
}
/*
** Process a DELETE FROM statement.
*/
void sqliteDeleteFrom(
Parse *pParse, /* The parser context */
Token *pTableName, /* The table from which we should delete things */
SrcList *pTabList, /* The table from which we should delete things */
Expr *pWhere /* The WHERE clause. May be null */
){
Vdbe *v; /* The virtual database engine */
Table *pTab; /* The table from which records will be deleted */
char *zTab; /* Name of the table from which we are deleting */
SrcList *pTabList; /* A fake FROM clause holding just pTab */
int end, addr; /* A couple addresses of generated code */
int i; /* Loop counter */
WhereInfo *pWInfo; /* Information about the WHERE clause */
@@ -92,11 +67,12 @@ void sqliteDeleteFrom(
goto delete_from_cleanup;
}
db = pParse->db;
assert( pTabList->nSrc==1 );
/* Check for the special case of a VIEW with one or more ON DELETE triggers
** defined
*/
zTab = sqliteTableNameFromToken(pTableName);
zTab = pTabList->a[0].zName;
if( zTab != 0 ){
pTab = sqliteFindTable(pParse->db, zTab);
if( pTab ){
@@ -106,9 +82,9 @@ void sqliteDeleteFrom(
sqliteTriggersExist(pParse, pTab->pTrigger,
TK_DELETE, TK_AFTER, TK_ROW, 0);
}
sqliteFree(zTab);
if( row_triggers_exist && pTab->pSelect ){
/* Just fire VIEW triggers */
sqliteSrcListDelete(pTabList);
sqliteViewTriggers(pParse, pTab, pWhere, OE_Replace, 0);
return;
}
@@ -119,10 +95,10 @@ void sqliteDeleteFrom(
** will be calling are designed to work with multiple tables and expect
** an SrcList* parameter instead of just a Table* parameter.
*/
pTabList = sqliteTableTokenToSrcList(pParse, pTableName);
if( pTabList==0 ) goto delete_from_cleanup;
assert( pTabList->nSrc==1 );
pTab = pTabList->a[0].pTab;
pTab = pTabList->a[0].pTab = sqliteTableNameToTable(pParse, zTab);
if( pTab==0 ){
goto delete_from_cleanup;
}
assert( pTab->pSelect==0 ); /* This table is not a view */
if( sqliteAuthCheck(pParse, SQLITE_DELETE, pTab->zName, 0) ){
goto delete_from_cleanup;