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various cleanups

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This commit is contained in:
Michael Widenius 2016-06-25 20:55:43 +02:00 • committed by Sergei Golubchik
commit 2fe8dd0f90
22 changed files with 148 additions and 159 deletions
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6
sql/sql_update.cc
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@ -95,8 +95,8 @@ bool compare_record(const TABLE *table)
/*
The storage engine has read all columns, so it's safe to compare all bits
including those not in the write_set. This is cheaper than the field-by-field
comparison done above.
including those not in the write_set. This is cheaper than the
field-by-field comparison done above.
*/
if (table->s->can_cmp_whole_record)
return cmp_record(table,record[1]);
@ -371,7 +371,7 @@ int mysql_update(THD *thd,
switch_to_nullable_trigger_fields(fields, table);
switch_to_nullable_trigger_fields(values, table);
/* Apply the IN=>EXISTS transformation to all subqueries and optimize them. */
/* Apply the IN=>EXISTS transformation to all subqueries and optimize them */
if (select_lex->optimize_unflattened_subqueries(false))
DBUG_RETURN(TRUE);