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Overview
Comment:Minor simplification to the changes from check-in [36c11ad51f].
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SHA3-256: 7bc8205dd9c1657c736a9c6a1a90dd9dad442accfbb77d296eaae2c09ab46bd1
User & Date: mistachkin 2019-11-06 19:25:45
Context
2019-11-06
22:19
Change the way generated columns are computed so that no column is computed inside branch code that might not be taken. Ticket [4fc08501f4e56692] check-in: 9e07b48934 user: drh tags: trunk
19:25
Minor simplification to the changes from check-in [36c11ad51f]. check-in: 7bc8205dd9 user: mistachkin tags: trunk
17:31
Fix the OP_DeferredSeek index-to-table column map in P4 so that it works with generated columns. Ticket [ce22a07731530118] check-in: 36c11ad51f user: drh tags: trunk
Changes
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Changes to src/wherecode.c.

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      ai[0] = pTab->nCol;
      for(i=0; i<pIdx->nColumn-1; i++){
        int x1, x2;
        assert( pIdx->aiColumn[i]<pTab->nCol );
        x1 = pIdx->aiColumn[i];
        x2 = sqlite3TableColumnToStorage(pTab, x1);
        testcase( x1!=x2 );
        if( pIdx->aiColumn[i]>=0 ) ai[x2+1] = i+1;
      }
      sqlite3VdbeChangeP4(v, -1, (char*)ai, P4_INTARRAY);
    }
  }
}

/*







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      ai[0] = pTab->nCol;
      for(i=0; i<pIdx->nColumn-1; i++){
        int x1, x2;
        assert( pIdx->aiColumn[i]<pTab->nCol );
        x1 = pIdx->aiColumn[i];
        x2 = sqlite3TableColumnToStorage(pTab, x1);
        testcase( x1!=x2 );
        if( x1>=0 ) ai[x2+1] = i+1;
      }
      sqlite3VdbeChangeP4(v, -1, (char*)ai, P4_INTARRAY);
    }
  }
}

/*