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MDEV-16351 JSON_OBJECT() treats hybrid functions with boolean arguments as numbers

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Now the boolean data type is preserved in hybrid functions and MIN/MAX,
so COALESCE(bool_expr,bool_expr) and MAX(bool_expr) are correctly
detected by JSON_OBJECT() as being boolean rather than numeric expressions.
This commit is contained in:
Alexander Barkov
2018-05-31 18:52:32 +04:00
parent 3ceb4a54a1
commit ffe83e8e7b
15 changed files with 277 additions and 14 deletions
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2
sql/item_jsonfunc.cc
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@ -1397,7 +1397,7 @@ null_return:
static int append_json_value(String *str, Item *item, String *tmp_val)
{
if (item->is_bool_type())
if (item->type_handler()->is_bool_type())
{
longlong v_int= item->val_int();
const char *t_f;