Update iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/relational/function/tvf/ForecastTableFunction.java

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/relational/function/tvf/ForecastTableFunction.java

diff --git a/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/relational/function/tvf/ForecastTableFunction.java b/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/relational/function/tvf/ForecastTableFunction.java
index af09dbf..442359a 100644
--- a/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/relational/function/tvf/ForecastTableFunction.java
+++ b/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/queryengine/plan/relational/function/tvf/ForecastTableFunction.java
@@ -158,7 +158,7 @@
       int size = ReadWriteIOUtils.readInt(buffer);
       this.inputColumnTypes = new ArrayList<>(size);
       for (int i = 0; i < size; i++) {
-        inputColumnTypes.add(Type.valueOf(ReadWriteIOUtils.readString(buffer)));
+        inputColumnTypes.add(Type.valueOf(ReadWriteIOUtils.readByte(buffer)));
       }
       size = ReadWriteIOUtils.readInt(buffer);
       this.predicatedColumnTypes = new ArrayList<>(size);