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Overview
| Comment: | Fix a display issue with EXPLAIN QUERY PLAN. |
|---|---|
| Downloads: | Tarball | ZIP archive |
| Timelines: | family | ancestors | descendants | both | nextgen-query-plan-exp |
| Files: | files | file ages | folders |
| SHA1: |
ff2fa407558360f2499b6df0392ab3cd |
| User & Date: | drh 2013-06-04 12:58:02.050 |
Context
|
2013-06-04
| ||
| 13:07 | Increase the estimated full-scan cost for an FTS3 table. (check-in: 8d9f29f847 user: drh tags: nextgen-query-plan-exp) | |
| 12:58 | Fix a display issue with EXPLAIN QUERY PLAN. (check-in: ff2fa40755 user: drh tags: nextgen-query-plan-exp) | |
| 12:42 | Refactor the ORDER BY optimizer in the NGQP so that it is easier to maintain and so that it can support optimizing out GROUP BY and DISTINCT clauses. (check-in: e605c468e3 user: drh tags: nextgen-query-plan-exp) | |
Changes
Changes to src/where.c.
| ︙ | ︙ | |||
315 316 317 318 319 320 321 322 323 324 325 326 327 328 | ** WhereLevel.wsFlags. These flags determine which search ** strategies are appropriate. */ #define WHERE_COLUMN_EQ 0x00000001 /* x=EXPR or x IN (...) or x IS NULL */ #define WHERE_COLUMN_RANGE 0x00000002 /* x<EXPR and/or x>EXPR */ #define WHERE_COLUMN_IN 0x00000004 /* x IN (...) */ #define WHERE_COLUMN_NULL 0x00000008 /* x IS NULL */ #define WHERE_TOP_LIMIT 0x00000010 /* x<EXPR or x<=EXPR constraint */ #define WHERE_BTM_LIMIT 0x00000020 /* x>EXPR or x>=EXPR constraint */ #define WHERE_BOTH_LIMIT 0x00000030 /* Both x>EXPR and x<EXPR */ #define WHERE_IDX_ONLY 0x00000040 /* Use index only - omit table */ #define WHERE_IPK 0x00000100 /* x is the INTEGER PRIMARY KEY */ #define WHERE_INDEXED 0x00000200 /* WhereLoop.u.btree.pIndex is valid */ #define WHERE_VIRTUALTABLE 0x00000400 /* WhereLoop.u.vtab is valid */ | > | 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 | ** WhereLevel.wsFlags. These flags determine which search ** strategies are appropriate. */ #define WHERE_COLUMN_EQ 0x00000001 /* x=EXPR or x IN (...) or x IS NULL */ #define WHERE_COLUMN_RANGE 0x00000002 /* x<EXPR and/or x>EXPR */ #define WHERE_COLUMN_IN 0x00000004 /* x IN (...) */ #define WHERE_COLUMN_NULL 0x00000008 /* x IS NULL */ #define WHERE_CONSTRAINT 0x0000000f /* Any of the WHERE_COLUMN_xxx values */ #define WHERE_TOP_LIMIT 0x00000010 /* x<EXPR or x<=EXPR constraint */ #define WHERE_BTM_LIMIT 0x00000020 /* x>EXPR or x>=EXPR constraint */ #define WHERE_BOTH_LIMIT 0x00000030 /* Both x>EXPR and x<EXPR */ #define WHERE_IDX_ONLY 0x00000040 /* Use index only - omit table */ #define WHERE_IPK 0x00000100 /* x is the INTEGER PRIMARY KEY */ #define WHERE_INDEXED 0x00000200 /* WhereLoop.u.btree.pIndex is valid */ #define WHERE_VIRTUALTABLE 0x00000400 /* WhereLoop.u.vtab is valid */ |
| ︙ | ︙ | |||
2901 2902 2903 2904 2905 2906 2907 |
((flags & WHERE_TEMP_INDEX)?"AUTOMATIC ":""),
((flags & WHERE_IDX_ONLY)?"COVERING ":""),
((flags & WHERE_TEMP_INDEX)?"":" "),
((flags & WHERE_TEMP_INDEX)?"": pLoop->u.btree.pIndex->zName),
zWhere
);
sqlite3DbFree(db, zWhere);
| | | 2902 2903 2904 2905 2906 2907 2908 2909 2910 2911 2912 2913 2914 2915 2916 |
((flags & WHERE_TEMP_INDEX)?"AUTOMATIC ":""),
((flags & WHERE_IDX_ONLY)?"COVERING ":""),
((flags & WHERE_TEMP_INDEX)?"":" "),
((flags & WHERE_TEMP_INDEX)?"": pLoop->u.btree.pIndex->zName),
zWhere
);
sqlite3DbFree(db, zWhere);
}else if( (flags & WHERE_IPK)!=0 && (flags & WHERE_CONSTRAINT)!=0 ){
zMsg = sqlite3MAppendf(db, zMsg, "%s USING INTEGER PRIMARY KEY", zMsg);
if( flags&WHERE_COLUMN_EQ ){
zMsg = sqlite3MAppendf(db, zMsg, "%s (rowid=?)", zMsg);
}else if( (flags&WHERE_BOTH_LIMIT)==WHERE_BOTH_LIMIT ){
zMsg = sqlite3MAppendf(db, zMsg, "%s (rowid>? AND rowid<?)", zMsg);
}else if( flags&WHERE_BTM_LIMIT ){
|
| ︙ | ︙ |