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5.5-merge

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This commit is contained in:
Sergei Golubchik
2011-07-02 22:08:51 +02:00
parent 0accbd0364 5a0e7394a5
commit 9809f05199
3220 changed files with 94894 additions and 422456 deletions
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58
sql/opt_range.h
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@ -288,6 +288,7 @@ public:
virtual bool reverse_sorted() = 0;
virtual bool unique_key_range() { return false; }
virtual bool clustered_pk_range() { return false; }
/*
Request that this quick select produces sorted output. Not all quick
@ -350,6 +351,13 @@ public:
*/
virtual bool is_keys_used(const MY_BITMAP *fields);
/**
Simple sanity check that the quick select has been set up
correctly. Function is overridden by quick selects that merge
indices.
*/
virtual bool is_valid() { return index != MAX_KEY; };
/*
rowid of last row retrieved by this quick select. This is used only when
doing ROR-index_merge selects
@ -595,6 +603,24 @@ public:
THD *thd;
int read_keys_and_merge();
bool clustered_pk_range() { return test(pk_quick_select); }
virtual bool is_valid()
{
List_iterator_fast<QUICK_RANGE_SELECT> it(quick_selects);
QUICK_RANGE_SELECT *quick;
bool valid= true;
while ((quick= it++))
{
if (!quick->is_valid())
{
valid= false;
break;
}
}
return valid;
}
/* used to get rows collected in Unique */
READ_RECORD read_record;
};
@ -648,6 +674,22 @@ public:
*/
List<QUICK_RANGE_SELECT> quick_selects;
virtual bool is_valid()
{
List_iterator_fast<QUICK_RANGE_SELECT> it(quick_selects);
QUICK_RANGE_SELECT *quick;
bool valid= true;
while ((quick= it++))
{
if (!quick->is_valid())
{
valid= false;
break;
}
}
return valid;
}
/*
Merged quick select that uses Clustered PK, if there is one. This quick
select is not used for row retrieval, it is used for row retrieval.
@ -699,6 +741,22 @@ public:
List<QUICK_SELECT_I> quick_selects; /* Merged quick selects */
virtual bool is_valid()
{
List_iterator_fast<QUICK_SELECT_I> it(quick_selects);
QUICK_SELECT_I *quick;
bool valid= true;
while ((quick= it++))
{
if (!quick->is_valid())
{
valid= false;
break;
}
}
return valid;
}
QUEUE queue; /* Priority queue for merge operation */
MEM_ROOT alloc; /* Memory pool for this and merged quick selects data. */