Fix some spelling problems

core/trino-main/src/main/java/io/trino/cost/CostCalculatorWithEstimatedExchanges.java

@@ -166,7 +166,7 @@ public LocalCostEstimate visitSpatialJoin(SpatialJoinNode node, Void context)
         public LocalCostEstimate visitUnion(UnionNode node, Void context)
         {
             // this assumes that all union inputs will be gathered over the network
-            // that is not aways true
+            // that is not always true
             // but this estimate is better that returning UNKNOWN, as it sets
             // cumulative cost to unknown
             double inputSizeInBytes = getStats(node).getOutputSizeInBytes(node.getOutputSymbols(), types);

core/trino-main/src/main/java/io/trino/cost/SimpleFilterProjectSemiJoinStatsRule.java

@@ -145,9 +145,9 @@ private Optional<SemiJoinOutputFilter> extractSemiJoinOutputFilter(Expression pr
 
     private static boolean isSemiJoinOutputReference(Expression conjunct, Symbol semiJoinOutput)
     {
-        SymbolReference semiJoinOuputSymbolReference = semiJoinOutput.toSymbolReference();
-        return conjunct.equals(semiJoinOuputSymbolReference) ||
-                (conjunct instanceof NotExpression && ((NotExpression) conjunct).getValue().equals(semiJoinOuputSymbolReference));
+        SymbolReference semiJoinOutputSymbolReference = semiJoinOutput.toSymbolReference();
+        return conjunct.equals(semiJoinOutputSymbolReference) ||
+                (conjunct instanceof NotExpression && ((NotExpression) conjunct).getValue().equals(semiJoinOutputSymbolReference));
     }
 
     private static class SemiJoinOutputFilter

core/trino-main/src/main/java/io/trino/execution/scheduler/BinPackingNodeAllocatorService.java

@@ -350,7 +350,7 @@ SettableFuture<InternalNode> getNodeSettableFuture()
         public void attachTaskId(TaskId taskId)
         {
             if (!this.taskId.compareAndSet(null, taskId)) {
-                throw new IllegalStateException("cannot attach taskId " + taskId + "; alrady attached to " + this.taskId.get());
+                throw new IllegalStateException("cannot attach taskId " + taskId + "; already attached to " + this.taskId.get());
             }
         }