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Changes In Branch covering-index Excluding Merge-Ins
This is equivalent to a diff from 0064a8c77b to 71d488b599
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2016-02-24
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| 17:18 | When an index completely covers a table, it can be used as a covering index even if columns past the 63rd column are indexed and accessed. (check-in: 3e9ed1aea4 user: drh tags: trunk) | |
| 16:14 | Fix a problem with handling identifiers that start with "x" if SQLITE_OMIT_BLOB_LITERAL is defined. (check-in: b65217c69c user: dan tags: trunk) | |
| 15:43 | Identify indexes that completely cover their table. (Closed-Leaf check-in: 71d488b599 user: drh tags: covering-index) | |
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2016-02-23
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| 16:28 | Add the SQLITE_BITMASK_TYPE compile-time option. (check-in: 0064a8c77b user: drh tags: trunk) | |
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2016-02-22
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| 23:44 | Remove code not needed now that synchronous=OFF database files no longer trigger the use of a master journal. (check-in: aa9f4c622a user: drh tags: trunk) | |
Changes to src/build.c.
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3188 3189 3190 3191 3192 3193 3194 3195 3196 3197 3198 3199 3200 3201 | 3188 3189 3190 3191 3192 3193 3194 3195 3196 3197 3198 3199 3200 3201 3202 3203 3204 3205 3206 3207 3208 3209 3210 3211 3212 | + + + + + + + + + + + |
i++;
}
}
assert( i==pIndex->nColumn );
}else{
pIndex->aiColumn[i] = XN_ROWID;
pIndex->azColl[i] = sqlite3StrBINARY;
/* If this index contains every column of its table, then mark
** it as a covering index */
if( pTblName!=0 && pIndex->nColumn>=pTab->nCol ){
pIndex->isCovering = 1;
for(j=0; j<pTab->nCol; j++){
if( j==pTab->iPKey ) continue;
if( sqlite3ColumnOfIndex(pIndex,j)>=0 ) continue;
pIndex->isCovering = 0;
break;
}
}
}
sqlite3DefaultRowEst(pIndex);
if( pParse->pNewTable==0 ) estimateIndexWidth(pIndex);
if( pTab==pParse->pNewTable ){
/* This routine has been called to create an automatic index as a
** result of a PRIMARY KEY or UNIQUE clause on a column definition, or
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