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Merge branch '5.5' into 10.1

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Oleksandr Byelkin
2020-01-19 12:22:12 +01:00
parent 02af6278fb 4d1c1b23e1
commit f31bf6f094
11 changed files with 118 additions and 43 deletions
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11
sql/sql_class.h
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@@ -5161,16 +5161,21 @@ user_var_entry *get_variable(HASH *hash, LEX_STRING &name,
class Unique :public Sql_alloc
{
DYNAMIC_ARRAY file_ptrs;
ulong max_elements;
ulong max_elements; /* Total number of elements that will be stored in-memory */
ulonglong max_in_memory_size;
IO_CACHE file;
TREE tree;
uchar *record_pointers;
/* Number of elements filtered out due to min_dupl_count when storing results
to table. See Unique::get */
ulong filtered_out_elems;
bool flush();
uint size;
uint full_size;
uint min_dupl_count; /* always 0 for unions, > 0 for intersections */
uint full_size; /* Size of element + space needed to store the number of
duplicates found for the element. */
uint min_dupl_count; /* Minimum number of occurences of element required for
it to be written to record_pointers.
always 0 for unions, > 0 for intersections */
bool with_counters;
bool merge(TABLE *table, uchar *buff, bool without_last_merge);