Method initLocalStateInternal

src/processor/operator/filter.cpp:15–24

}

void Filter::initLocalStateInternal(ResultSet* resultSet, ExecutionContext* context) {
    expressionEvaluator->init(*resultSet, context->clientContext);
    if (dataChunkToSelectPos == INVALID_DATA_CHUNK_POS) {
        // Filter a constant expression. Ideally we should fold all such expression at compile time.
        // But there are many edge cases, so we keep this code path for robustness.
        state = DataChunkState::getSingleValueDataChunkState();
    } else {
        state = resultSet->dataChunks[dataChunkToSelectPos]->state;
    }
}

bool Filter::getNextTuplesInternal(ExecutionContext* context) {
    bool hasAtLeastOneSelectedValue = false;