[Feature](schema change) Support add column bitmap with default value bitmap_empty

fe/fe-core/src/main/cup/sql_parser.cup

@@ -285,6 +285,7 @@ terminal String
     KW_BIN,
     KW_BINLOG,
     KW_BITMAP,
+    KW_BITMAP_EMPTY,
     KW_BITMAP_UNION,
     KW_BLOB,
     KW_BOOLEAN,
@@ -3972,6 +3973,10 @@ opt_default_value ::=
     {:
         RESULT = ColumnDef.DefaultValue.currentTimeStampDefaultValueWithPrecision(precision);
     :}
+    | KW_DEFAULT KW_BITMAP_EMPTY
+    {:
+        RESULT = ColumnDef.DefaultValue.BITMAP_EMPTY_DEFAULT_VALUE;
+    :}
     | KW_DEFAULT INTEGER_LITERAL:value
     {:
         RESULT = new ColumnDef.DefaultValue(true, value);
@@ -8102,6 +8107,8 @@ keyword ::=
     {: RESULT = id; :}
     | KW_BITMAP:id
     {: RESULT = id; :}
+    | KW_BITMAP_EMPTY:id
+    {: RESULT = id; :}
     | KW_QUANTILE_STATE:id
     {: RESULT = id; :}
     | KW_AGG_STATE:id

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

@@ -996,6 +996,11 @@ public String toSql(boolean isUniqueTable, boolean isCompatible) {
                 sb.append(" DEFAULT \"").append(defaultValue).append("\"");
             }
         }
+        if (getDataType() == PrimitiveType.BITMAP && defaultValue != null) {
+            if (defaultValueExprDef != null) {
+                sb.append(" DEFAULT ").append(defaultValueExprDef.getExprName()).append("");
+            }
+        }
         if (hasOnUpdateDefaultValue) {
             sb.append(" ON UPDATE ").append(defaultValue).append("");
         }

fe/fe-core/src/main/jflex/sql_scanner.flex

@@ -123,6 +123,7 @@ import org.apache.doris.qe.SqlModeHelper;
         keywordMap.put("binlog", new Integer(SqlParserSymbols.KW_BINLOG));
         keywordMap.put("bitmap", new Integer(SqlParserSymbols.KW_BITMAP));
         keywordMap.put("inverted", new Integer(SqlParserSymbols.KW_INVERTED));
+        keywordMap.put("bitmap_empty", new Integer(SqlParserSymbols.KW_BITMAP_EMPTY));
         keywordMap.put("bitmap_union", new Integer(SqlParserSymbols.KW_BITMAP_UNION));
         keywordMap.put("ngram_bf", new Integer(SqlParserSymbols.KW_NGRAM_BF));
         keywordMap.put("blob", new Integer(SqlParserSymbols.KW_BLOB));

regression-test/data/alter_p0/test_alter_add_column_default_value.out

@@ -0,0 +1,14 @@
+-- This file is automatically generated. You should know what you did if you want to edit this
+-- !select1 --
+1	1	1
+2	2	2
+3	3	3
+
+-- !select4 --
+1	1	1	
+2	2	2	
+3	3	3	
+4	4	4	444
+5	5	5	
+6	6	6	
+

regression-test/suites/alter_p0/test_alter_add_column_default_value.groovy

@@ -0,0 +1,66 @@
+// Licensed to the Apache Software Foundation (ASF) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The ASF licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+
+suite('test_alter_add_column_default_value') {
+    def tbl = 'test_alter_add_column_default_value'
+    sql "DROP TABLE IF EXISTS ${tbl} FORCE"
+    sql """
+        CREATE TABLE ${tbl} (
+            `k1` BIGINT NOT NULL,
+            `v1` BIGINT NULL,
+            `v2` INT NULL,
+        ) ENGINE=OLAP
+        UNIQUE KEY(`k1`)
+        DISTRIBUTED BY HASH(`k1`) BUCKETS 1
+        PROPERTIES (
+            "replication_allocation" = "tag.location.default: 1"
+        );
+    """
+
+    sql """
+        INSERT INTO ${tbl} VALUES (1,1,1),(2,2,2),(3,3,3)
+    """
+
+    sql """ SYNC """
+
+    // Check data before ALTER TABLE
+    qt_select1 """ SELECT * FROM ${tbl} ORDER BY k1 """
+    def tb1 = sql """ show create table ${tbl}"""
+    logger.info("tb1:{}", tb1[0][1])
+    assertFalse(tb1[0][1].contains("bitmap NOT NULL DEFAULT BITMAP_EMPTY"))
+
+    sql """
+        ALTER TABLE ${tbl} add column v3 bitmap default bitmap_empty;
+    """
+
+    waitForSchemaChangeDone {
+        sql """ SHOW ALTER TABLE COLUMN WHERE TableName='${tbl}' ORDER BY createtime DESC LIMIT 1 """
+        time 600
+    }
+
+    // Check table structure after ALTER TABLE
+    def tb2 = sql """ show create table ${tbl}"""
+    logger.info("tb2:{}", tb2[0][1])
+    assertTrue(tb2[0][1].contains("bitmap NOT NULL DEFAULT BITMAP_EMPTY"))
+    def resultCreate = sql """ SHOW CREATE TABLE ${tbl} """
+    sql """insert into ${tbl} values (4,4,4,to_bitmap(444))"""
+    sql """insert into ${tbl} (k1,v1,v2) values (5,5,5)"""
+    sql """insert into ${tbl} (k1,v1,v2) values (6,6,6)"""
+    qt_select4 """ SELECT k1,v1,v1,bitmap_to_string(v3) FROM ${tbl} ORDER BY k1 """
+
+    sql "DROP TABLE IF EXISTS ${tbl} FORCE"
+}