diff options
Diffstat (limited to 'src/sqliteInt.h')
| -rw-r--r-- | src/sqliteInt.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/sqliteInt.h b/src/sqliteInt.h index 291957db9..7a4983ad5 100644 --- a/src/sqliteInt.h +++ b/src/sqliteInt.h @@ -1464,12 +1464,16 @@ struct FKey { ** An instance of the following structure is passed as the first ** argument to sqlite3VdbeKeyCompare and is used to control the ** comparison of the two index keys. +** +** Note that aSortOrder[] and aColl[] have nField+1 slots. There +** are nField slots for the columns of an index then one extra slot +** for the rowid at the end. */ struct KeyInfo { sqlite3 *db; /* The database connection */ u8 enc; /* Text encoding - one of the SQLITE_UTF* values */ - u16 nField; /* Number of entries in aColl[] */ - u8 *aSortOrder; /* Sort order for each column. May be NULL */ + u16 nField; /* Maximum index for aColl[] and aSortOrder[] */ + u8 *aSortOrder; /* Sort order for each column. */ CollSeq *aColl[1]; /* Collating sequence for each term of the key */ }; @@ -3086,6 +3090,7 @@ void sqlite3MinimumFileFormat(Parse*, int, int); void sqlite3SchemaClear(void *); Schema *sqlite3SchemaGet(sqlite3 *, Btree *); int sqlite3SchemaToIndex(sqlite3 *db, Schema *); +KeyInfo *sqlite3KeyInfoAlloc(sqlite3*,int); KeyInfo *sqlite3IndexKeyinfo(Parse *, Index *); int sqlite3CreateFunc(sqlite3 *, const char *, int, int, void *, void (*)(sqlite3_context*,int,sqlite3_value **), |