| 64 | } |
| 65 | |
| 66 | void Generator::preGen() { |
| 67 | int32_t channel = 0; |
| 68 | if (generateChannels_.size()) { |
| 69 | genInput_[channel] = input_->childAt(generateChannels_[channel]); |
| 70 | } else { |
| 71 | if (genInput_[channel]) { |
| 72 | genInput_[channel].reset(); |
| 73 | } |
| 74 | auto size = input_->size(); |
| 75 | EvalCtx evalCtx(operatorCtx_->execCtx(), genExprs_.get(), input_.get()); |
| 76 | LocalSelectivityVector localRows(*operatorCtx_->execCtx(), size); |
| 77 | auto* rows = localRows.get(); |
| 78 | rows->setAll(); |
| 79 | genExprs_->eval(0, 1, true, *rows, evalCtx, genInput_); |
| 80 | } |
| 81 | |
| 82 | const auto& generateVector = genInput_[channel]; |
| 83 | generateDecoded_[channel].decode(*generateVector, inputRows_); |
| 84 | } |
| 85 | |
| 86 | // explode |
| 87 | GeneratorExplode::GeneratorExplode( |