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Fixed build failure

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This commit is contained in:
Sergey Vojtovich 2019-03-23 17:12:23 +04:00
parent 901e3ddf79
commit c0ba036b77
1 changed files with 1 additions and 1 deletions
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2
sql/item_sum.cc
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@ -2042,7 +2042,7 @@ double Item_sum_std::val_real()
{
DBUG_ASSERT(fixed == 1);
double nr= Item_sum_variance::val_real();
if (isnan(nr))
if (std::isnan(nr))
{
/*
variance_fp_recurrence_next() can overflow in some cases and return "nan":