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MDEV-18144 ANALYZE fixes

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Fix bugs caused by changes for ANALYZE
This commit is contained in:
Galina Shalygina 2019-02-07 13:22:07 +03:00
parent 9e114455a9
commit 6cb2ab5328
1 changed files with 18 additions and 3 deletions
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21
sql/sql_explain.cc
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@ -392,11 +392,19 @@ int print_explain_row(select_result_sink *result,
item_list.push_back(item_null, mem_root); item_list.push_back(item_null, mem_root);
/* 'r_rows' */ /* 'r_rows' */
StringBuffer<64> r_rows_str;
if (is_analyze) if (is_analyze)
{ {
if (r_rows) if (r_rows)
item_list.push_back(new (mem_root) Item_float(thd, *r_rows, 2), {
mem_root); Item_float *fl= new (mem_root) Item_float(thd, *r_rows, 2);
String tmp;
String *res= fl->val_str(&tmp);
r_rows_str.append(res->ptr());
item_list.push_back(new (mem_root)
Item_string_sys(thd, r_rows_str.ptr(),
r_rows_str.length()), mem_root);
}
else else
item_list.push_back(item_null, mem_root); item_list.push_back(item_null, mem_root);
} }
@ -529,10 +537,17 @@ int Explain_union::print_explain(Explain_query *query,
item_list.push_back(item_null, mem_root); item_list.push_back(item_null, mem_root);
/* `r_rows` */ /* `r_rows` */
StringBuffer<64> r_rows_str;
if (is_analyze) if (is_analyze)
{ {
double avg_rows= fake_select_lex_tracker.get_avg_rows(); double avg_rows= fake_select_lex_tracker.get_avg_rows();
item_list.push_back(new (mem_root) Item_float(thd, avg_rows, 2), mem_root); Item_float *fl= new (mem_root) Item_float(thd, avg_rows, 2);
String tmp;
String *res= fl->val_str(&tmp);
r_rows_str.append(res->ptr());
item_list.push_back(new (mem_root)
Item_string_sys(thd, r_rows_str.ptr(),
r_rows_str.length()), mem_root);
} }
/* `filtered` */ /* `filtered` */