diff --git a/Src/Asp.Net/SqlSugar/Abstract/SugarProvider/SqlSugarAccessory.cs b/Src/Asp.Net/SqlSugar/Abstract/SugarProvider/SqlSugarAccessory.cs
index 3ebfdc6df..6b38b51f7 100644
--- a/Src/Asp.Net/SqlSugar/Abstract/SugarProvider/SqlSugarAccessory.cs
+++ b/Src/Asp.Net/SqlSugar/Abstract/SugarProvider/SqlSugarAccessory.cs
@@ -352,6 +352,14 @@ namespace SqlSugar
             ILambdaExpressions expressionContext = sqlBuilder.QueryBuilder.LambdaExpressions;
             expressionContext.MappingColumns = this.MappingColumns;
             expressionContext.MappingTables = this.MappingTables;
+            if (this.Context.CurrentConnectionConfig.MoreSettings != null)
+            {
+                expressionContext.PgSqlIsAutoToLower = this.Context.CurrentConnectionConfig.MoreSettings.PgSqlIsAutoToLower;
+            }
+            else
+            {
+                expressionContext.PgSqlIsAutoToLower = true;
+            }
             if (this.Context.CurrentConnectionConfig.ConfigureExternalServices != null)
                 expressionContext.SqlFuncServices = this.Context.CurrentConnectionConfig.ConfigureExternalServices.SqlFuncServices;
             expressionContext.Resolve(joinExpression, ResolveExpressType.Join);
diff --git a/Src/Asp.Net/SqlSugar/ExpressionsToSql/ExpressionContext.cs b/Src/Asp.Net/SqlSugar/ExpressionsToSql/ExpressionContext.cs
index 11181bb1c..40fc5a367 100644
--- a/Src/Asp.Net/SqlSugar/ExpressionsToSql/ExpressionContext.cs
+++ b/Src/Asp.Net/SqlSugar/ExpressionsToSql/ExpressionContext.cs
@@ -126,6 +126,7 @@ namespace SqlSugar
             copyContext.InitMappingInfo = this.InitMappingInfo;
             copyContext.RefreshMapping = this.RefreshMapping;
             copyContext.ParameterIndex = this.ParameterIndex;
+            copyContext.PgSqlIsAutoToLower = this.PgSqlIsAutoToLower;
             return copyContext;
         }
         public ExpressionContext GetCopyContextWithMapping()