[fix](Nereids) fix insert into table with null literal default value (a…

…pache#39122)

Problem:
when use insert with default value null, it can not be insert
successfully
Solved:
when column is allow to be null, it can be null in create table with
null default value

fe/fe-core/src/main/java/org/apache/doris/analysis/NativeInsertStmt.java

@@ -923,11 +923,15 @@ private void analyzeRow(Analyzer analyzer, List<Column> targetColumns, List<Arra
             Column col = targetColumns.get(i);
 
             if (expr instanceof DefaultValueExpr) {
-                if (targetColumns.get(i).getDefaultValue() == null) {
+                if (targetColumns.get(i).getDefaultValue() == null && !targetColumns.get(i).isAllowNull()) {
                     throw new AnalysisException("Column has no default value, column="
                             + targetColumns.get(i).getName());
                 }
-                expr = new StringLiteral(targetColumns.get(i).getDefaultValue());
+                if (targetColumns.get(i).getDefaultValue() == null) {
+                    expr = new NullLiteral();
+                } else {
+                    expr = new StringLiteral(targetColumns.get(i).getDefaultValue());
+                }
             }
             if (expr instanceof Subquery) {
                 throw new AnalysisException("Insert values can not be query");

fe/fe-core/src/main/java/org/apache/doris/catalog/Column.java

@@ -518,6 +518,9 @@ public String getDefaultValue() {
     }
 
     public Expr getDefaultValueExpr() throws AnalysisException {
+        if (defaultValue == null) {
+            return null;
+        }
         StringLiteral defaultValueLiteral = new StringLiteral(defaultValue);
         if (getDataType() == PrimitiveType.VARCHAR) {
             return defaultValueLiteral;

fe/fe-core/src/main/java/org/apache/doris/nereids/rules/analysis/BindSink.java

@@ -337,7 +337,7 @@ private static Map<String, NamedExpression> getColumnToOutput(
                 } else if (column.getDefaultValue() == null) {
                     // throw exception if explicitly use Default value but no default value present
                     // insert into table t values(DEFAULT)
-                    if (columnToChildOutput.get(column) instanceof DefaultValueSlot) {
+                    if (columnToChildOutput.get(column) instanceof DefaultValueSlot && !column.isAllowNull()) {
                         throw new AnalysisException("Column has no default value,"
                                 + " column=" + column.getName());
                     }

fe/fe-core/src/main/java/org/apache/doris/nereids/trees/plans/commands/insert/InsertUtils.java

@@ -427,7 +427,9 @@ private static NamedExpression generateDefaultExpression(Column column) {
                 return new Alias(new NullLiteral(DataType.fromCatalogType(column.getType())), column.getName());
             }
             if (column.getDefaultValue() == null) {
-                throw new AnalysisException("Column has no default value, column=" + column.getName());
+                if (!column.isAllowNull()) {
+                    throw new AnalysisException("Column has no default value, column=" + column.getName());
+                }
             }
             if (column.getDefaultValueExpr() != null) {
                 Expression defualtValueExpression = new NereidsParser().parseExpression(

regression-test/data/load_p0/insert/test_insert_default_value.out

@@ -1,8 +1,15 @@
 -- This file is automatically generated. You should know what you did if you want to edit this
 -- !select1 --
-10	10000	10000000	92233720368547758	19223372036854775807	10.3	10.3
-10	10000	10000000	92233720368547758	19223372036854775807	10.3	10.3
+10	10000	10000000	92233720368547758	19223372036854775807	10.30	10.3
+10	10000	10000000	92233720368547758	19223372036854775807	10.30	10.3
 
 -- !select2 --
-true	10	10000	10000000	92233720368547758	19223372036854775807	3.14159	hello world, today is 15/06/2023	2023-06-15	2023-06-15T16:10:15	10.3
-true	10	10000	10000000	92233720368547758	19223372036854775807	3.14159	hello world, today is 15/06/2023	2023-06-15	2023-06-15T16:10:15	10.3
+true	10	10000	10000000	92233720368547758	19223372036854775807	3.14159	hello world, today is 15/06/2023	2023-06-15	2023-06-15T16:10:15	10.30
+true	10	10000	10000000	92233720368547758	19223372036854775807	3.14159	hello world, today is 15/06/2023	2023-06-15	2023-06-15T16:10:15	10.30
+
+-- !select3 --
+1	2	test			0	0	0		\N		0.0		0		0	0	\N	\N
+
+-- !select4 --
+1	2	test			0	0	0		\N		0.0		0		0	0	\N	\N
+

regression-test/suites/load_p0/insert/test_insert_default_value.groovy

@@ -82,4 +82,50 @@ suite("test_insert_default_value") {
     qt_select2 """ select k1, k2, k3, k4, k5, k6, k7, k8, k9, k10, k11 from test_insert_dft_tbl """
 
     sql "drop table test_insert_dft_tbl"
-}
+
+    sql "drop table if exists test_insert_default_null"
+    sql """
+        CREATE TABLE `test_insert_default_null` (
+                `gz_organization_id` int(11) DEFAULT '1',
+                `company_id` int(11) NOT NULL,
+                `material_id` varchar(120) NOT NULL COMMENT '素材id',
+                `material_info_type` varchar(40) DEFAULT '',
+                `signature` varchar(260) DEFAULT '' COMMENT 'md5',
+                `size` int(11) DEFAULT '0' COMMENT '大小',
+                `width` int(11) DEFAULT '0' COMMENT '宽',
+                `height` int(11) DEFAULT '0' COMMENT '高',
+                `format` varchar(80) DEFAULT '' COMMENT '格式',
+                `upload_time` datetime DEFAULT NULL COMMENT '上传时间',
+                `filename` varchar(500) DEFAULT '' COMMENT '名字',
+                `duration` decimal(10,1) DEFAULT '0' COMMENT '视频时长',
+                `producer_name` varchar(200) DEFAULT '',
+                `producer_id` int(11) DEFAULT '0',
+                `producer_department_path` varchar(100) DEFAULT '',
+                `producer_special_id` int(11) DEFAULT '0',
+                `producer_node_id` int(11) DEFAULT '0',
+                `update_time` datetime DEFAULT null,
+                `create_time` datetime DEFAULT null,
+            INDEX idx_filename(filename) USING INVERTED PROPERTIES("parser" = "chinese"),
+            ) ENGINE=OLAP
+            UNIQUE KEY(`gz_organization_id`, `company_id`, `material_id`)
+            DISTRIBUTED BY HASH(`material_id`) BUCKETS 3
+            PROPERTIES (
+            "store_row_column" = "true",
+            "enable_unique_key_merge_on_write" = "true",
+            "replication_num" = "1"
+        ); 
+        """
+
+    sql """ set enable_nereids_planner=true """
+    sql """ set enable_nereids_dml=true """
+    sql """ INSERT INTO `test_insert_default_null` (gz_organization_id, `company_id`, `material_id`, create_time) VALUES ('1', '2', 'test', DEFAULT); """
+    qt_select3 """ select * from test_insert_default_null;"""
+    sql """ truncate table test_insert_default_null;"""
+
+    sql """ set enable_nereids_planner=false """
+    sql """ set enable_nereids_dml=false """
+    sql """ INSERT INTO `test_insert_default_null` (gz_organization_id, `company_id`, `material_id`, create_time) VALUES ('1', '2', 'test', DEFAULT); """
+
+    qt_select4 """ select * from test_insert_default_null;"""
+    sql "drop table if exists test_insert_default_null"
+}