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Overview
| Comment: | Add the SQLITE_DEFAULT_ROWEST compile-time option for changing the estimated number of rows in tables that lack sqlite_stat1 entries. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: |
234ede26e30f20e6c33002739ed8be35 |
| User & Date: | drh 2017-06-06 18:20:43 |
Context
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2017-06-07
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| 22:32 | In SQLITE_DEBUG mode, attempt to log the page number of the database that contained the problem when SQLITE_CORRUPT errors are seen. (check-in: e39795d7 user: drh tags: trunk) | |
| 16:25 | Merge in trunk enhancements. (check-in: f8bbb608 user: drh tags: prepare_v3) | |
| 10:55 | Cause the ANALYZE command to build sqlite_stat1 table entries for empty tables with the assumption that such tables really contain 10 elements. This gives better query plans for tables that are truely empty, but is likely to cause problems in legacy systems, so the change is kept off trunk. Some TCL tests fail on this check-in due to the new stat1 entries. (Leaf check-in: c81f260c user: drh tags: analyze-empty-tables) | |
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2017-06-06
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| 18:22 | Add the SQLITE_DEFAULT_ROWEST compile-time option for changing the estimated number of rows in tables that lack sqlite_stat1 entries. (check-in: 802b82f3 user: drh tags: branch-3.8.9) | |
| 18:20 | Add the SQLITE_DEFAULT_ROWEST compile-time option for changing the estimated number of rows in tables that lack sqlite_stat1 entries. (check-in: 234ede26 user: drh tags: trunk) | |
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2017-06-05
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| 19:20 | Fix a subtle bug in the remember UDF of the kvtest.exe utility program. (check-in: 9eea3670 user: drh tags: trunk) | |
Changes
Changes to src/build.c.
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pParse->nErr++;
goto begin_table_error;
}
pTable->zName = zName;
pTable->iPKey = -1;
pTable->pSchema = db->aDb[iDb].pSchema;
pTable->nTabRef = 1;
pTable->nRowLogEst = 200; assert( 200==sqlite3LogEst(1048576) );
assert( pParse->pNewTable==0 );
pParse->pNewTable = pTable;
/* If this is the magic sqlite_sequence table used by autoincrement,
** then record a pointer to this table in the main database structure
** so that INSERT can find the table easily.
*/
|
> > > > |
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pParse->nErr++;
goto begin_table_error;
}
pTable->zName = zName;
pTable->iPKey = -1;
pTable->pSchema = db->aDb[iDb].pSchema;
pTable->nTabRef = 1;
#ifdef SQLITE_DEFAULT_ROWEST
pTable->nRowLogEst = sqlite3LogEst(SQLITE_DEFAULT_ROWEST);
#else
pTable->nRowLogEst = 200; assert( 200==sqlite3LogEst(1048576) );
#endif
assert( pParse->pNewTable==0 );
pParse->pNewTable = pTable;
/* If this is the magic sqlite_sequence table used by autoincrement,
** then record a pointer to this table in the main database structure
** so that INSERT can find the table easily.
*/
|