Draft CompletionOperator.

Author: afoucret

x-pack/plugin/esql/src/main/java/org/elasticsearch/xpack/esql/inference/CompletionOperator.java

@@ -18,7 +18,6 @@
 import org.elasticsearch.compute.operator.EvalOperator.ExpressionEvaluator;
 import org.elasticsearch.compute.operator.Operator;
 import org.elasticsearch.inference.TaskType;
-import org.elasticsearch.logging.LogManager;
 import org.elasticsearch.xpack.core.inference.action.InferenceAction;
 import org.elasticsearch.xpack.core.inference.results.ChatCompletionResults;
 
@@ -89,7 +88,7 @@ protected void performAsync(Page inputPage, ActionListener<Page> listener) {
                     for (int valueIndex = 0; valueIndex < promptBlock.getValueCount(pos); valueIndex++) {
                         readBuffer = promptBlock.getBytesRef(promptBlock.getFirstValueIndex(pos) + valueIndex, readBuffer);
                         promptBuilder.append(readBuffer.utf8ToString()).append("\n");
-
+                    }
 
                     InferenceAction.Request request = InferenceAction.Request.builder(inferenceId(), TaskType.COMPLETION)
                         .setInput(List.of(promptBuilder.toString())).build();