database/mariadb-columnstore-engine
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chore(QA): added MTR tests for TPC-H, removed printouts and added a doc on the feature.

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This commit is contained in:
drrtuy
2025-09-11 16:07:21 +00:00
parent 3f88085360
commit 3d6e2a6bd7
24 changed files with 909 additions and 1294 deletions
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12
dbcon/mysql/ha_mcs_execplan.cpp
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@@ -5265,19 +5265,14 @@ void extractColumnStatistics(TABLE_LIST* table_ptr, gp_walk_info& gwi)
{
{
Field* field = table_ptr->table->key_info[j].key_part[0].field;
std::cout << "j index " << j << " i column " << 0 << " fieldnr "
<< table_ptr->table->key_info[j].key_part[0].fieldnr << " " << field->field_name.str;
if (field->read_stats)
{
auto* histogram = dynamic_cast<Histogram_json_hb*>(field->read_stats->histogram);
if (histogram)
{
std::cout << " has stats with " << histogram->get_json_histogram().size() << " buckets";
SchemaAndTableName tableName = {field->table->s->db.str, field->table->s->table_name.str};
auto sc =
std::unique_ptr<execplan::SimpleColumn>(buildSimpleColumnFromFieldForStatistics(field, gwi));
std::cout << "sc with stats !!!!! " << sc->toString() << std::endl;
auto tableStatisticsMapIt = gwi.tableStatisticsMap.find(tableName);
if (tableStatisticsMapIt == gwi.tableStatisticsMap.end())
{
@@ -5297,12 +5292,7 @@ void extractColumnStatistics(TABLE_LIST* table_ptr, gp_walk_info& gwi)
}
}
}
else
{
std::cout << " no stats ";
}
}
std::cout << std::endl;
}
}
}
@@ -7659,7 +7649,7 @@ int cs_get_select_plan(ha_columnstore_select_handler* handler, THD* thd, SCSEP&
derivedTableOptimization(&gwi, csep);
{
optimizer::RBOptimizerContext ctx(gwi, *thd, csep->traceOn(), get_ces_optimization_parallel_factor(thd));
optimizer::RBOptimizerContext ctx(gwi, *thd, csep->traceOn(), get_query_accel_parallel_factor(thd));
// TODO RBO can crash or fail leaving CSEP in an invalid state, so there must be a valid CSEP copy
// TBD There is a tradeoff b/w copy per rule and copy per optimizer run.
bool csepWasOptimized = optimizer::optimizeCSEP(*csep, ctx, get_unstable_optimizer(&ctx.getThd()));