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Proposed fix for the row-value TRIGGER UPDATE problem described in

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ticket [8c9458e7].

FossilOrigin-Name: 61a442ea2ceec2cbd327dae0ff5214e1f3c69ec0
This commit is contained in:
drh
2017-01-02 22:36:32 +00:00
parent 63a49ce0b2
commit 47073f62bf
3 changed files with 26 additions and 8 deletions
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15
manifest
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@@ -1,5 +1,5 @@
C Increase\sthe\sversion\snumber\sto\s3.17.0\sfor\sthe\snext\srelease\scycle.
D 2017-01-02T19:10:14.396
C Proposed\sfix\sfor\sthe\srow-value\sTRIGGER\sUPDATE\sproblem\sdescribed\sin\s\nticket\s[8c9458e7].
D 2017-01-02T22:36:32.292
F Makefile.in 41bd4cad981487345c4a84081074bcdb876e4b2e
F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
F Makefile.msc b8ca53350ae545e3562403d5da2a69cec79308da
@@ -341,7 +341,7 @@ F src/ctime.c 9f2296a4e5d26ebf0e0d95a0af4628f1ea694e7a
F src/date.c dc3f1391d9297f8c748132813aaffcb117090d6e
F src/dbstat.c 19ee7a4e89979d4df8e44cfac7a8f905ec89b77d
F src/delete.c c8bc10d145c9666a34ae906250326fdaa8d58fa5
F src/expr.c 3b662f58b50ba12c004b2d9bd8d3ff5fddbbae7f
F src/expr.c d438df533ef4dc803260527cee353d3d7df89ba3
F src/fault.c 460f3e55994363812d9d60844b2a6de88826e007
F src/fkey.c 2e9aabe1aee76273aff8a84ee92c464e095400ae
F src/func.c d8582ee91975975645f206db332c38f534b783ad
@@ -1541,7 +1541,10 @@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a91a7acc6293828957a386a8a93
F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
P 584da48f9e818f25134e0a62fb7e84f07019511f
R d97b559f497d0a265e23fba942228550
P 16415b5aad445c9e4e849018b48538d74eec8944
R 0fc45eecde9c7ee8bfeff4a5566dee47
T *branch * rowvalue-update-trigger
T *sym-rowvalue-update-trigger *
T -sym-trunk *
U drh
Z 24a7fb491cd5a499becb9d53b759e62e
Z 681d88dc64ba5dba1f04ffca46eb2b75

2
manifest.uuid
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@@ -1 +1 @@
16415b5aad445c9e4e849018b48538d74eec8944
61a442ea2ceec2cbd327dae0ff5214e1f3c69ec0

17
src/expr.c
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@@ -1088,7 +1088,7 @@ static int dupedExprStructSize(Expr *p, int flags){
assert( flags==EXPRDUP_REDUCE || flags==0 ); /* Only one flag value allowed */
assert( EXPR_FULLSIZE<=0xfff );
assert( (0xfff & (EP_Reduced|EP_TokenOnly))==0 );
if( 0==flags ){
if( 0==flags || p->op==TK_SELECT_COLUMN ){
nSize = EXPR_FULLSIZE;
}else{
assert( !ExprHasProperty(p, EP_TokenOnly|EP_Reduced) );
@@ -1231,6 +1231,8 @@ static Expr *exprDup(sqlite3 *db, Expr *p, int dupFlags, u8 **pzBuffer){
if( !ExprHasProperty(p, EP_TokenOnly|EP_Leaf) ){
if( pNew->op==TK_SELECT_COLUMN ){
pNew->pLeft = p->pLeft;
assert( p->iColumn==0 || p->pRight==0 );
assert( p->pRight==0 || p->pRight==p->pLeft );
}else{
pNew->pLeft = sqlite3ExprDup(db, p->pLeft, 0);
}
@@ -1307,7 +1309,20 @@ ExprList *sqlite3ExprListDup(sqlite3 *db, ExprList *p, int flags){
pOldItem = p->a;
for(i=0; i<p->nExpr; i++, pItem++, pOldItem++){
Expr *pOldExpr = pOldItem->pExpr;
Expr *pNewExpr;
pItem->pExpr = sqlite3ExprDup(db, pOldExpr, flags);
if( pOldExpr
&& pOldExpr->op==TK_SELECT_COLUMN
&& (pNewExpr = pItem->pExpr)!=0
){
assert( pNewExpr->iColumn==0 || i>0 );
if( pNewExpr->iColumn==0 ){
assert( pOldExpr->pLeft==pOldExpr->pRight );
pNewExpr->pLeft = pNewExpr->pRight;
}else if( pItem[-1].pExpr!=0 ){
pNewExpr->pLeft = pItem[-1].pExpr->pLeft;
}
}
pItem->zName = sqlite3DbStrDup(db, pOldItem->zName);
pItem->zSpan = sqlite3DbStrDup(db, pOldItem->zSpan);
pItem->sortOrder = pOldItem->sortOrder;