Merge BUG#36639 into 5.1
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commit
6df6aeca4c
@ -8564,6 +8564,13 @@ QUICK_SELECT_DESC::QUICK_SELECT_DESC(QUICK_RANGE_SELECT *q,
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used_key_parts (used_key_parts_arg)
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used_key_parts (used_key_parts_arg)
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{
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{
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QUICK_RANGE *r;
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QUICK_RANGE *r;
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/*
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Use default MRR implementation for reverse scans. No table engine
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currently can do an MRR scan with output in reverse index order.
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*/
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multi_range_length= 0;
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multi_range= NULL;
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multi_range_buff= NULL;
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QUICK_RANGE **pr= (QUICK_RANGE**)ranges.buffer;
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QUICK_RANGE **pr= (QUICK_RANGE**)ranges.buffer;
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QUICK_RANGE **end_range= pr + ranges.elements;
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QUICK_RANGE **end_range= pr + ranges.elements;
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@ -345,14 +345,7 @@ public:
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void dbug_dump(int indent, bool verbose);
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void dbug_dump(int indent, bool verbose);
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#endif
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#endif
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private:
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private:
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/* Used only by QUICK_SELECT_DESC */
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/* Default copy ctor used by QUICK_SELECT_DESC */
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QUICK_RANGE_SELECT(const QUICK_RANGE_SELECT& org) : QUICK_SELECT_I()
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{
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bcopy(&org, this, sizeof(*this));
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multi_range_length= 0;
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multi_range= NULL;
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multi_range_buff= NULL;
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}
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};
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};
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