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Fix cases where modifying bound variables using the clear_bindings() or transfer_bindings() APIs can invalidate a query plan.

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FossilOrigin-Name: e6808c988c9cd7b2db23f18b5fe2177151b6f586
This commit is contained in:
dan
2009-10-20 07:01:24 +00:00
parent b4138de448
commit c94b859560
4 changed files with 89 additions and 19 deletions
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9
src/vdbeapi.c
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@@ -99,6 +99,9 @@ int sqlite3_clear_bindings(sqlite3_stmt *pStmt){
sqlite3VdbeMemRelease(&p->aVar[i]);
p->aVar[i].flags = MEM_Null;
}
if( p->isPrepareV2 && p->expmask ){
p->expired = 1;
}
sqlite3_mutex_leave(mutex);
return rc;
}
@@ -1173,6 +1176,12 @@ int sqlite3_transfer_bindings(sqlite3_stmt *pFromStmt, sqlite3_stmt *pToStmt){
if( pFrom->nVar!=pTo->nVar ){
return SQLITE_ERROR;
}
if( pTo->isPrepareV2 && pTo->expmask ){
pTo->expired = 1;
}
if( pFrom->isPrepareV2 && pFrom->expmask ){
pFrom->expired = 1;
}
return sqlite3TransferBindings(pFromStmt, pToStmt);
}
#endif