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| author | drh <> | 2025-02-21 20:35:37 +0000 |
|---|---|---|
| committer | drh <> | 2025-02-21 20:35:37 +0000 |
| commit | cc803b209f2ffa9dcaad43c37eb8ccafaed199bd (patch) | |
| tree | d58455eecf8e403f2ecf00a75fb28a22f8d23a2d /src/where.c | |
| parent | d9959bf48b13bffda4c073de17eb13752b9cb5c9 (diff) | |
| download | sqlite-cc803b209f2ffa9dcaad43c37eb8ccafaed199bd.tar.gz sqlite-cc803b209f2ffa9dcaad43c37eb8ccafaed199bd.zip | |
The number of declared columns in an index is limited to SQLITE_LIMIT_COLUMN.
But the actual number of columns in the implementation might need to be
twice as much to account for the primary key at the end. Ensure that the
code is able to deal with this. This is a correction to
check-in [d7729dbbf231d57c].
FossilOrigin-Name: 5822feec43be9352fd87bf9968c39c0218e01ab5fe3ba50431ae21cba79e6c89
Diffstat (limited to 'src/where.c')
| -rw-r--r-- | src/where.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/where.c b/src/where.c index 5cb52b8ad..127525006 100644 --- a/src/where.c +++ b/src/where.c @@ -1104,6 +1104,8 @@ static SQLITE_NOINLINE void constructAutomaticIndex( } /* Construct the Index object to describe this index */ + assert( nKeyCol <= pTable->nCol + MAX(0, pTable->nCol - BMS + 1) ); + /* ^-- This guarantees that the number of index columns will fit in the u16 */ pIdx = sqlite3AllocateIndexObject(pParse->db, nKeyCol+HasRowid(pTable), 0, &zNotUsed); if( pIdx==0 ) goto end_auto_index_create; |