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Use JSON_NAME, not the "histogram_hb_v2" constant

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This commit is contained in:
Sergei Petrunia 2021-09-14 20:18:07 +03:00
parent 702f4efcd9
commit d03daaf8a8
2 changed files with 3 additions and 3 deletions
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2
sql/opt_histogram_json.cc
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@ -285,7 +285,7 @@ bool Histogram_json_hb::parse(MEM_ROOT *mem_root, Field *field,
const char *hist_array;
int hist_array_len;
if (JSV_ARRAY != json_get_object_key(obj1, obj1 + obj1_len,
"histogram_hb_v2", &hist_array,
JSON_NAME, &hist_array,
&hist_array_len))
{
err_pos= obj1;

4
sql/opt_histogram_json.h
View File

@ -31,8 +31,8 @@
]
}
The histogram is an object with single member named "histogram_hb_v2".
The value of that member is an array of buckets.
The histogram is an object with single member named Histogram_json_hb::
JSON_NAME. The value of that member is an array of buckets.
Each bucket is an object with these members:
"start" - the first value in the bucket.
"size" - fraction of table rows that is contained in the bucket.