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chore(QA,plugin): moving statistics code to prepare for PRIMARY KEY support in QA.

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drrtuy
2025-10-07 21:56:46 +00:00
parent 47008a2a3f
commit fb98e46bfc
10 changed files with 100 additions and 78 deletions
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30
dbcon/mysql/ha_mcs_execplan.cpp
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@@ -5267,31 +5267,11 @@ void extractColumnStatistics(TABLE_LIST* table_ptr, gp_walk_info& gwi)
Field* field = table_ptr->table->key_info[j].key_part[0].field;
if (field->read_stats)
{
auto* histogram = dynamic_cast<Histogram_json_hb*>(field->read_stats->histogram);
if (histogram)
{
SchemaAndTableName tableName = {field->table->s->db.str, field->table->s->table_name.str};
auto sc =
std::unique_ptr<execplan::SimpleColumn>(buildSimpleColumnFromFieldForStatistics(field, gwi));
auto tableStatisticsMapIt = gwi.tableStatisticsMap.find(tableName);
if (tableStatisticsMapIt == gwi.tableStatisticsMap.end())
{
gwi.tableStatisticsMap[tableName][field->field_name.str] = {*sc, {histogram}};
}
else
{
auto columnStatisticsMapIt = tableStatisticsMapIt->second.find(field->field_name.str);
if (columnStatisticsMapIt == tableStatisticsMapIt->second.end())
{
tableStatisticsMapIt->second[field->field_name.str] = {*sc, {histogram}};
}
else
{
auto& columnStatisticsVec = columnStatisticsMapIt->second.getHistograms();
columnStatisticsVec.push_back(histogram);
}
}
}
SchemaAndTableName tableName = {field->table->s->db.str, field->table->s->table_name.str};
auto sc =
std::unique_ptr<execplan::SimpleColumn>(buildSimpleColumnFromFieldForStatistics(field, gwi));
assert(field->field_name.str);
gwi.tableStatistics.createOrUpdate(tableName, field->field_name.str, *sc, field->read_stats);
}
}
}