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Fix valgrind failure caused by calling c_ptr() of an empty StringBuffer<N>.

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This commit is contained in:
Sergey Petrunya
2013-10-15 19:24:43 +04:00
parent c0a741f005
commit 207f008220
1 changed files with 1 additions and 1 deletions
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2
sql/sql_explain.cc
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@@ -903,7 +903,7 @@ int Explain_update::print_explain(Explain_query *query,
key_len_buf.length() ? key_len_buf.c_ptr() : NULL,
NULL, /* 'ref' is always NULL in single-table EXPLAIN DELETE */
&rows,
extra_str.c_ptr());
extra_str.c_ptr_safe());
return print_explain_for_children(query, output, explain_flags);
}