15345 typedef struct Upsert Upsert;  typedef
19393 struct Upsert {  struct
19394   ExprList *pUpsertTarget;  /* Optional description of conflict target */  argument
19395   Expr *pUpsertTargetWhere; /* WHERE clause for partial index targets */  argument
19396   ExprList *pUpsertSet;     /* The SET clause from an ON CONFLICT UPDATE */  argument
19397   Expr *pUpsertWhere;       /* WHERE clause for the ON CONFLICT UPDATE */  argument
19398   Upsert *pNextUpsert;      /* Next ON CONFLICT clause in the list */  argument
19402   void *pToFree;            /* Free memory when deleting the Upsert object */  argument
19408   Index *pUpsertIdx;        /* UNIQUE constraint specified by pUpsertTarget */  argument
19409   SrcList *pUpsertSrc;      /* Table to be updated */  argument
19410   int regData;              /* First register holding array of VALUES */
19411   int iDataCur;             /* Index of the data cursor */
19412   int iIdxCur;              /* Index of the first index cursor */