diff --git a/milvus-plus-core/src/main/java/org/dromara/milvus/plus/builder/CollectionSchemaBuilder.java b/milvus-plus-core/src/main/java/org/dromara/milvus/plus/builder/CollectionSchemaBuilder.java
index 03d8403..7b33750 100644
--- a/milvus-plus-core/src/main/java/org/dromara/milvus/plus/builder/CollectionSchemaBuilder.java
+++ b/milvus-plus-core/src/main/java/org/dromara/milvus/plus/builder/CollectionSchemaBuilder.java
@@ -54,7 +54,7 @@ public class CollectionSchemaBuilder {
     }
 
     public void addNumPartitions(Integer numPartitions){
-        if (numPartitions < 1) {
+        if (numPartitions == null || numPartitions < 1) {
             return;
         }
         this.numPartitions=numPartitions;
diff --git a/milvus-plus-core/src/main/java/org/dromara/milvus/plus/core/conditions/LambdaQueryWrapper.java b/milvus-plus-core/src/main/java/org/dromara/milvus/plus/core/conditions/LambdaQueryWrapper.java
index 23222b0..2eee1a2 100644
--- a/milvus-plus-core/src/main/java/org/dromara/milvus/plus/core/conditions/LambdaQueryWrapper.java
+++ b/milvus-plus-core/src/main/java/org/dromara/milvus/plus/core/conditions/LambdaQueryWrapper.java
@@ -859,6 +859,9 @@ public class LambdaQueryWrapper<T> extends AbstractChainWrapper<T> implements Wr
             Collection<String> values = conversionCache.getPropertyCache().functionToPropertyMap.values();
             builder.outputFields(new ArrayList<>(values));
         }
+        if (CollectionUtils.isEmpty(outputMetaFields) && !CollectionUtils.isEmpty(conversionCache.getPropertyCache().metaFunctionSet)) {
+            outputMetaFields = new ArrayList<>(conversionCache.getPropertyCache().metaFunctionSet);
+        }
         if (!searchParams.isEmpty()) {
             builder.searchParams(searchParams);
         }
@@ -915,6 +918,9 @@ public class LambdaQueryWrapper<T> extends AbstractChainWrapper<T> implements Wr
             Collection<String> values = conversionCache.getPropertyCache().functionToPropertyMap.values();
             builder.outputFields(new ArrayList<>(values));
         }
+        if (CollectionUtils.isEmpty(outputMetaFields) && !CollectionUtils.isEmpty(conversionCache.getPropertyCache().metaFunctionSet)) {
+            outputMetaFields = new ArrayList<>(conversionCache.getPropertyCache().metaFunctionSet);
+        }
         return builder.build();
     }
     private HybridSearchReq buildHybrid(){
@@ -956,6 +962,9 @@ public class LambdaQueryWrapper<T> extends AbstractChainWrapper<T> implements Wr
             Collection<String> values = conversionCache.getPropertyCache().functionToPropertyMap.values();
             reqBuilder.outFields(new ArrayList<>(values));
         }
+        if (CollectionUtils.isEmpty(outputMetaFields) && !CollectionUtils.isEmpty(conversionCache.getPropertyCache().metaFunctionSet)) {
+            outputMetaFields = new ArrayList<>(conversionCache.getPropertyCache().metaFunctionSet);
+        }
         if (!CollectionUtils.isEmpty(partitionNames)) {
             reqBuilder.partitionNames(partitionNames);
         }