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Overview
| Comment: | Improvements to the documentation for the xAccess method of the VFS. Ticket [5e0423b058fa5adf] |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
7078d77effc296c63c91ec032c866e2b |
| User & Date: | drh 2019-06-10 19:07:15 |
Context
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2019-06-10
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| 19:17 | Have ALTER TABLE commands ignore the lhs of "expr IN ()" and "expr NOT IN ()" expressions, just as other queries do. Fix for [533010b8ca]. (check-in: 71643deb user: dan tags: trunk) | |
| 19:07 | Improvements to the documentation for the xAccess method of the VFS. Ticket [5e0423b058fa5adf] (check-in: 7078d77e user: drh tags: trunk) | |
| 18:33 | Make sure a CAST to "NUMERIC" results in an integer if the value can be losslessly expressed as an integer, as the documentation requires. Ticket [dd6bffbfb6e61db9]. (check-in: c0c90961 user: drh tags: trunk) | |
Changes
Changes to src/sqlite.h.in.
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** element will be valid after xOpen returns regardless of the success ** or failure of the xOpen call. ** ** [[sqlite3_vfs.xAccess]] ** ^The flags argument to xAccess() may be [SQLITE_ACCESS_EXISTS] ** to test for the existence of a file, or [SQLITE_ACCESS_READWRITE] to ** test whether a file is readable and writable, or [SQLITE_ACCESS_READ] ** to test whether a file is at least readable. The file can be a ** directory. ** ** ^SQLite will always allocate at least mxPathname+1 bytes for the ** output buffer xFullPathname. The exact size of the output buffer ** is also passed as a parameter to both methods. If the output buffer ** is not large enough, [SQLITE_CANTOPEN] should be returned. Since this is ** handled as a fatal error by SQLite, vfs implementations should endeavor ** to prevent this by setting mxPathname to a sufficiently large value. |
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** element will be valid after xOpen returns regardless of the success ** or failure of the xOpen call. ** ** [[sqlite3_vfs.xAccess]] ** ^The flags argument to xAccess() may be [SQLITE_ACCESS_EXISTS] ** to test for the existence of a file, or [SQLITE_ACCESS_READWRITE] to ** test whether a file is readable and writable, or [SQLITE_ACCESS_READ] ** to test whether a file is at least readable. The SQLITE_ACCESS_READ ** flag is never actually used and is not implemented in the built-in ** VFSes of SQLite. The file is named by the second argument and can be a ** directory. The xAccess method returns [SQLITE_OK] on success or some ** non-zero error code if there is an I/O error or if the name of ** the file given in the second argument is illegal. If SQLITE_OK ** is returned, then non-zero or zero is written into *pResOut to indicate ** whether or not the file is accessible. ** ** ^SQLite will always allocate at least mxPathname+1 bytes for the ** output buffer xFullPathname. The exact size of the output buffer ** is also passed as a parameter to both methods. If the output buffer ** is not large enough, [SQLITE_CANTOPEN] should be returned. Since this is ** handled as a fatal error by SQLite, vfs implementations should endeavor ** to prevent this by setting mxPathname to a sufficiently large value. |