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WL 1682: Use bitvector instead of query_id to tell handler which fields

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to read and write
Changed Server code, added new interface to handler and changed the
NDB handler, InnoDB handler and Federated handler that previously used
query_id
Bug#10202 fix (one-liner fix for memory leak)
This commit is contained in:
mronstrom@mysql.com
2005-04-28 14:45:27 +02:00
parent 2ac4cf5187
commit 21347433cf
24 changed files with 299 additions and 199 deletions
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9
sql/sql_class.h
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@ -760,8 +760,15 @@ public:
/*
- if set_query_id=1, we set field->query_id for all fields. In that case
field list can not contain duplicates.
0: Means query_id is not set and no indicator to handler of fields used
is set
1: Means query_id is set for fields in list and bit in read set is set
to inform handler of that field is to be read
2: Means query is set for fields in list and bit is set in update set
to inform handler that it needs to update this field in write_row
and update_row
*/
bool set_query_id;
ulong set_query_id;
/*
This variable is used in post-parse stage to declare that sum-functions,
or functions which have sense only if GROUP BY is present, are allowed.