Add an explicit cast to Size to hyperloglog.c

MSVC generates a warning here; we hope this will make it happy.

Report by Michael Paquier.  Patch by David Rowley.

diff --git a/src/backend/lib/hyperloglog.c b/src/backend/lib/hyperloglog.c
index 1157e9ad76357af2baa5abd637056afbf5d1675f..4b37048c37bb47c580667ed20bae4b5c0a1ffd0a 100644 (file)
--- a/src/backend/lib/hyperloglog.c
+++ b/src/backend/lib/hyperloglog.c
@@ -70,7 +70,7 @@ initHyperLogLog(hyperLogLogState *cState, uint8 bwidth)
        elog(ERROR, "bit width must be between 4 and 16 inclusive");
 
    cState->registerWidth = bwidth;
-   cState->nRegisters = 1 << bwidth;
+   cState->nRegisters = (Size) 1 << bwidth;
    cState->arrSize = sizeof(uint8) * cState->nRegisters + 1;
 
    /*