diff options
Diffstat (limited to 'src/upsert.c')
| -rw-r--r-- | src/upsert.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/src/upsert.c b/src/upsert.c index be0d055..f74d4fa 100644 --- a/src/upsert.c +++ b/src/upsert.c @@ -90,7 +90,8 @@ Upsert *sqlite3UpsertNew( int sqlite3UpsertAnalyzeTarget( Parse *pParse, /* The parsing context */ SrcList *pTabList, /* Table into which we are inserting */ - Upsert *pUpsert /* The ON CONFLICT clauses */ + Upsert *pUpsert, /* The ON CONFLICT clauses */ + Upsert *pAll /* Complete list of all ON CONFLICT clauses */ ){ Table *pTab; /* That table into which we are inserting */ int rc; /* Result code */ @@ -193,6 +194,14 @@ int sqlite3UpsertAnalyzeTarget( continue; } pUpsert->pUpsertIdx = pIdx; + if( sqlite3UpsertOfIndex(pAll,pIdx)!=pUpsert ){ + /* Really this should be an error. The isDup ON CONFLICT clause will + ** never fire. But this problem was not discovered until three years + ** after multi-CONFLICT upsert was added, and so we silently ignore + ** the problem to prevent breaking applications that might actually + ** have redundant ON CONFLICT clauses. */ + pUpsert->isDup = 1; + } break; } if( pUpsert->pUpsertIdx==0 ){ @@ -219,9 +228,13 @@ int sqlite3UpsertNextIsIPK(Upsert *pUpsert){ Upsert *pNext; if( NEVER(pUpsert==0) ) return 0; pNext = pUpsert->pNextUpsert; - if( pNext==0 ) return 1; - if( pNext->pUpsertTarget==0 ) return 1; - if( pNext->pUpsertIdx==0 ) return 1; + while( 1 /*exit-by-return*/ ){ + if( pNext==0 ) return 1; + if( pNext->pUpsertTarget==0 ) return 1; + if( pNext->pUpsertIdx==0 ) return 1; + if( !pNext->isDup ) return 0; + pNext = pNext->pNextUpsert; + } return 0; } |