database/mariadb-columnstore-engine
1
0
Fork 0
mirror of https://github.com/mariadb-corporation/mariadb-columnstore-engine.git synced 2025-07-30 19:23:07 +03:00
Code Activity

MCOL-641 Refactor initial extent elimination support.

Browse Source 
This commit also adds support in TupleHashJoinStep::forwardCPData,
although we currently do not support wide decimals as join keys.

Row estimation to determine large-side of the join is also updated.
This commit is contained in:
Gagan Goel
2020-07-24 19:04:25 -04:00
committed by Roman Nozdrin
parent ca53b6348a
commit d3bc68b02f
32 changed files with 1221 additions and 386 deletions
Download Patch File Download Diff File Expand all files Collapse all files

74
dbcon/mysql/is_columnstore_extents.cpp
View File

@ -27,6 +27,9 @@
#include "dbrm.h"
#include "objectidmanager.h"
#include "is_columnstore.h"
#include "mcs_decimal.h"
#include "widedecimalutils.h"
#include "dataconvert.h"
// Required declaration as it isn't in a MairaDB include
bool schema_table_store_record(THD* thd, TABLE* table);
@ -37,8 +40,10 @@ ST_FIELD_INFO is_columnstore_extents_fields[] =
Show::Column("OBJECT_TYPE", Show::Varchar(64), NOT_NULL), // 1
Show::Column("LOGICAL_BLOCK_START", Show::SLonglong(0), NOT_NULL), // 2
Show::Column("LOGICAL_BLOCK_END", Show::SLonglong(0), NOT_NULL), // 3
Show::Column("MIN_VALUE", Show::SLonglong(0), NULLABLE), // 4
Show::Column("MAX_VALUE", Show::SLonglong(0), NULLABLE), // 5
// length=3800 here because sql/sql_i_s.h sets
// decimal_precision() as (length / 100) % 100). Not sure why.
Show::Column("MIN_VALUE", Show::Decimal(3800), NULLABLE), // 4
Show::Column("MAX_VALUE", Show::Decimal(3800), NULLABLE), // 5
Show::Column("WIDTH", Show::ULong(0), NOT_NULL), // 6
Show::Column("DBROOT", Show::ULong(0), NOT_NULL), // 7
Show::Column("PARTITION_ID", Show::ULong(0), NOT_NULL), // 8
@ -75,26 +80,61 @@ static int generate_result(BRM::OID_t oid, BRM::DBRM* emp, TABLE* table, THD* th
{
table->field[1]->store("Column", strlen("Column"), cs);
if (iter->partition.cprange.lo_val == std::numeric_limits<int64_t>::max() ||
iter->partition.cprange.lo_val <= (std::numeric_limits<int64_t>::min() + 2))
if (iter->colWid != datatypes::MAXDECIMALWIDTH)
{
table->field[4]->set_null();
}
else
{
table->field[4]->set_notnull();
table->field[4]->store(iter->partition.cprange.lo_val);
}
if (iter->partition.cprange.lo_val == std::numeric_limits<int64_t>::max() ||
iter->partition.cprange.lo_val <= (std::numeric_limits<int64_t>::min() + 1))
{
table->field[4]->set_null();
}
else
{
table->field[4]->set_notnull();
table->field[4]->store(iter->partition.cprange.lo_val);
}
if (iter->partition.cprange.hi_val == std::numeric_limits<int64_t>::max() ||
iter->partition.cprange.hi_val <= (std::numeric_limits<int64_t>::min() + 2))
{
table->field[5]->set_null();
if (iter->partition.cprange.hi_val <= (std::numeric_limits<int64_t>::min() + 1))
{
table->field[5]->set_null();
}
else
{
table->field[5]->set_notnull();
table->field[5]->store(iter->partition.cprange.hi_val);
}
}
else
{
table->field[5]->set_notnull();
table->field[5]->store(iter->partition.cprange.hi_val);
if (iter->partition.cprange.bigLoVal == utils::maxInt128 ||
iter->partition.cprange.bigLoVal <= (utils::minInt128 + 1))
{
table->field[4]->set_null();
}
else
{
table->field[4]->set_notnull();
char buf[utils::MAXLENGTH16BYTES];
dataconvert::DataConvert::decimalToString(
&iter->partition.cprange.bigLoVal,
0, buf, sizeof(buf), execplan::CalpontSystemCatalog::DECIMAL);
table->field[4]->store(buf, strlen(buf), table->field[4]->charset());
}
if (iter->partition.cprange.bigHiVal <= (utils::minInt128 + 1))
{
table->field[5]->set_null();
}
else
{
table->field[5]->set_notnull();
char buf[utils::MAXLENGTH16BYTES];
dataconvert::DataConvert::decimalToString(
&iter->partition.cprange.bigHiVal,
0, buf, sizeof(buf), execplan::CalpontSystemCatalog::DECIMAL);
table->field[5]->store(buf, strlen(buf), table->field[5]->charset());
}
}
table->field[6]->store(iter->colWid);