Enhance the query planner with the ability to discern when an index is

covering even when it indexes columns well beyond the 63rd column.

FossilOrigin-Name: 1390417be45dd84e9118f6e761f23b8ff7476d26411e165bbaab678881e4eadd

1 files changed, 2 insertions, 1 deletions

diff --git a/src/sqliteInt.h b/src/sqliteInt.h
index ea75eb276..04f8204d2 100644
--- a/src/sqliteInt.h
+++ b/src/sqliteInt.h
@@ -1255,6 +1255,7 @@ typedef struct With With;
 #define MASKBIT32(n)  (((unsigned int)1)<<(n))
 #define SMASKBIT32(n) ((n)<=31?((unsigned int)1)<<(n):0)
 #define ALLBITS       ((Bitmask)-1)
+#define TOPBIT        (((Bitmask)1)<<(BMS-1))
 
 /* A VList object records a mapping between parameters/variables/wildcards
 ** in the SQL statement (such as $abc, @pqr, or :xyz) and the integer
@@ -4091,13 +4092,13 @@ struct Walker {
     struct RefSrcList *pRefSrcList;           /* sqlite3ReferencesSrcList() */
     int *aiCol;                               /* array of column indexes */
     struct IdxCover *pIdxCover;               /* Check for index coverage */
-    struct IdxExprTrans *pIdxTrans;           /* Convert idxed expr to column */
     ExprList *pGroupBy;                       /* GROUP BY clause */
     Select *pSelect;                          /* HAVING to WHERE clause ctx */
     struct WindowRewrite *pRewrite;           /* Window rewrite context */
     struct WhereConst *pConst;                /* WHERE clause constants */
     struct RenameCtx *pRename;                /* RENAME COLUMN context */
     struct Table *pTab;                       /* Table of generated column */
+    struct CoveringIndexCheck *pCovIdxCk;     /* Check for covering index */
     SrcItem *pSrcItem;                        /* A single FROM clause item */
     DbFixer *pFix;
   } u;