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Add direct aggregates

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Spider patches 026 (MDEV-7723), 031 (MDEV-7727) and 058 (MDEV-12532)

This allows the storage engine to internally compute sum and count
operations.

- Enhance sum items to be able to store the sum value directly.
- return_record_by_parent() is enabled in spider as
  HANDLER_HAS_DIRECT_AGGREGATE is defined
- Added spd_environ.h to spider. This is loaded first to ensure that all
  MariaDB specific defines that are used by include files are properly
  defined.
- This code is tested by the existing spider tests direct_aggregate.test
  and direct_aggregate_part.test and also partition.test
This commit is contained in:
Monty
2017-09-09 16:20:55 +03:00
parent 6f5a7e9227
commit da26d16dd1
28 changed files with 383 additions and 100 deletions
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1
sql/ha_partition.cc
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@@ -4212,7 +4212,6 @@ int ha_partition::write_row(uchar * buf)
sql_mode_t saved_sql_mode= thd->variables.sql_mode;
bool saved_auto_inc_field_not_null= table->auto_increment_field_not_null;
DBUG_ENTER("ha_partition::write_row");
DBUG_ASSERT(buf == m_rec0);
/*
If we have an auto_increment column and we are writing a changed row