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author | Oleksandr Byelkin <sanja@mariadb.com> | 2023-01-28 18:22:55 +0100 |
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committer | Oleksandr Byelkin <sanja@mariadb.com> | 2023-01-28 18:22:55 +0100 |
commit | a977054ee0bd1601a5252ec02459bac0241d9bfc (patch) | |
tree | fa5d780bbdcd977294e519e6890fa2ea48436f8c /sql/item_sum.h | |
parent | 765291d63e0c2a10c513a354e9ecb2e905570775 (diff) | |
parent | c73985f2ce8a391582787f3e310a011c1a712bec (diff) | |
download | mariadb-git-a977054ee0bd1601a5252ec02459bac0241d9bfc.tar.gz |
Merge branch '10.3' into 10.4
Diffstat (limited to 'sql/item_sum.h')
-rw-r--r-- | sql/item_sum.h | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/sql/item_sum.h b/sql/item_sum.h index 724581fc6ec..38a59ccae82 100644 --- a/sql/item_sum.h +++ b/sql/item_sum.h @@ -366,7 +366,14 @@ public: int8 aggr_level; /* nesting level of the aggregating subquery */ int8 max_arg_level; /* max level of unbound column references */ int8 max_sum_func_level;/* max level of aggregation for embedded functions */ - bool quick_group; /* If incremental update of fields */ + + /* + true (the default value) means this aggregate function can be computed + with TemporaryTableWithPartialSums algorithm (see end_update()). + false means this aggregate function needs OrderedGroupBy algorithm (see + end_write_group()). + */ + bool quick_group; /* This list is used by the check for mixing non aggregated fields and sum functions in the ONLY_FULL_GROUP_BY_MODE. We save all outer fields |