#include "storage/predicate/null_predicate.h"
#include "storage/table/column_chunk_stats.h"
namespace lbug::storage {
common::ZoneMapCheckResult ColumnNullPredicate::checkZoneMap(
const MergedColumnChunkStats& mergedStats) const {
const bool statToCheck = (expressionType == common::ExpressionType::IS_NULL) ?
mergedStats.guaranteedNoNulls :
mergedStats.guaranteedAllNulls;
return statToCheck ? common::ZoneMapCheckResult::SKIP_SCAN :
common::ZoneMapCheckResult::ALWAYS_SCAN;
}
}