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-rw-r--r--src/build.c19
1 files changed, 11 insertions, 8 deletions
diff --git a/src/build.c b/src/build.c
index e23aab6b1..46512f8e3 100644
--- a/src/build.c
+++ b/src/build.c
@@ -2661,19 +2661,22 @@ Index *sqlite3CreateIndex(
nName = sqlite3Strlen30(zName);
nCol = pList->nExpr;
pIndex = sqlite3DbMallocZero(db,
- sizeof(Index) + /* Index structure */
- sizeof(tRowcnt)*(nCol+1) + /* Index.aiRowEst */
- sizeof(int)*nCol + /* Index.aiColumn */
- sizeof(char *)*nCol + /* Index.azColl */
- sizeof(u8)*nCol + /* Index.aSortOrder */
- nName + 1 + /* Index.zName */
- nExtra /* Collation sequence names */
+ sizeof(Index) + /* Index structure */
+ ROUND8(sizeof(tRowcnt)*(nCol+1)) + /* Index.aiRowEst */
+ sizeof(char *)*nCol + /* Index.azColl */
+ sizeof(int)*nCol + /* Index.aiColumn */
+ sizeof(u8)*nCol + /* Index.aSortOrder */
+ nName + 1 + /* Index.zName */
+ nExtra /* Collation sequence names */
);
if( db->mallocFailed ){
goto exit_create_index;
}
pIndex->aiRowEst = (tRowcnt*)(&pIndex[1]);
- pIndex->azColl = (char**)(&pIndex->aiRowEst[nCol+1]);
+ pIndex->azColl = (char**)
+ ((char*)pIndex->aiRowEst + ROUND8(sizeof(tRowcnt)*nCol+1));
+ assert( EIGHT_BYTE_ALIGNMENT(pIndex->aiRowEst) );
+ assert( EIGHT_BYTE_ALIGNMENT(pIndex->azColl) );
pIndex->aiColumn = (int *)(&pIndex->azColl[nCol]);
pIndex->aSortOrder = (u8 *)(&pIndex->aiColumn[nCol]);
pIndex->zName = (char *)(&pIndex->aSortOrder[nCol]);