diff options
Diffstat (limited to 'src/sqliteLimit.h')
| -rw-r--r-- | src/sqliteLimit.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/sqliteLimit.h b/src/sqliteLimit.h index 0d15b3182..ec774889b 100644 --- a/src/sqliteLimit.h +++ b/src/sqliteLimit.h @@ -41,6 +41,12 @@ ** not have more than a dozen or so columns in any table. And if ** that is the case, there is no point in having more than a few ** dozen values in any of the other situations described above. +** +** An index can only have SQLITE_MAX_COLUMN columns from the user +** point of view, but the underlying b-tree that implements the index +** might have up to twice as many columns in a WITHOUT ROWID table, +** since must also store the primary key at the end. Hence the +** column count for Index is u16 instead of i16. */ #if !defined(SQLITE_MAX_COLUMN) # define SQLITE_MAX_COLUMN 2000 |