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Added support of null keys in HEAP tables

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Added ORDER BY optimization
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monty@tik.mysql.fi
2002-01-12 15:42:54 +02:00
parent 47408baac6
commit 7dd4eb71fe
31 changed files with 547 additions and 148 deletions
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5
sql/sql_select.h
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@@ -127,12 +127,13 @@ class TMP_TABLE_PARAM {
ha_rows end_write_records;
uint field_count,sum_func_count,func_count;
uint hidden_field_count;
uint group_parts,group_length;
uint group_parts,group_length,group_null_parts;
uint quick_group;
bool using_indirect_summary_function;
TMP_TABLE_PARAM()
:copy_funcs_it(copy_funcs), copy_field(0), group_parts(0), group_length(0)
:copy_funcs_it(copy_funcs), copy_field(0), group_parts(0),
group_length(0), group_null_parts(0)
{}
~TMP_TABLE_PARAM()
{