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Overview
| Comment: | The page size becomes fixed as soon as page1 from a non-empty database file is read. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
6064584d578f0ac7aba3f67912a5d9eb |
| User & Date: | drh 2019-01-06 02:06:31 |
Context
|
2019-01-07
| ||
| 15:57 | For SQLITE_ENABLE_PREUPDATE_HOOK builds, disable the optimization for a REPLACE command on a WITHOUT ROWID table with no indexes, triggers or foreign key constraints that causes SQLite to clobber any existing row without separately checking for it. This optimization causes SQLite to omit the expected pre-update-hook callbacks. check-in: 6281ef97 user: dan tags: trunk | |
|
2019-01-06
| ||
| 02:06 | The page size becomes fixed as soon as page1 from a non-empty database file is read. check-in: 6064584d user: drh tags: trunk | |
|
2019-01-05
| ||
| 21:56 | Add the exprNodeCopy() routine that will safely memcpy() an Expr node that might be a size-reduced node. check-in: a874c649 user: drh tags: trunk | |
Changes
Changes to src/btree.c.
3096 3097 3098 3099 3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 |
** between 512 and 65536 inclusive. */
if( ((pageSize-1)&pageSize)!=0
|| pageSize>SQLITE_MAX_PAGE_SIZE
|| pageSize<=256
){
goto page1_init_failed;
}
assert( (pageSize & 7)==0 );
/* EVIDENCE-OF: R-59310-51205 The "reserved space" size in the 1-byte
** integer at offset 20 is the number of bytes of space at the end of
** each page to reserve for extensions.
**
** EVIDENCE-OF: R-37497-42412 The size of the reserved region is
** determined by the one-byte unsigned integer found at an offset of 20
|
> |
3096 3097 3098 3099 3100 3101 3102 3103 3104 3105 3106 3107 3108 3109 3110 |
** between 512 and 65536 inclusive. */
if( ((pageSize-1)&pageSize)!=0
|| pageSize>SQLITE_MAX_PAGE_SIZE
|| pageSize<=256
){
goto page1_init_failed;
}
pBt->btsFlags |= BTS_PAGESIZE_FIXED;
assert( (pageSize & 7)==0 );
/* EVIDENCE-OF: R-59310-51205 The "reserved space" size in the 1-byte
** integer at offset 20 is the number of bytes of space at the end of
** each page to reserve for extensions.
**
** EVIDENCE-OF: R-37497-42412 The size of the reserved region is
** determined by the one-byte unsigned integer found at an offset of 20
|