fix converting date in yyyyMM and yyyy formats to Unix timestamp report Invalid value for DayOfMonth (valid values 1–28/31): 0.

fe/fe-core/src/main/java/org/apache/doris/nereids/util/DateUtils.java

@@ -370,8 +370,8 @@ public static LocalDateTime getTime(DateTimeFormatter formatter, String value) {
         TemporalAccessor accessor = formatter.parse(value);
         return LocalDateTime.of(
                 getOrDefault(accessor, ChronoField.YEAR),
-                getOrDefault(accessor, ChronoField.MONTH_OF_YEAR),
-                getOrDefault(accessor, ChronoField.DAY_OF_MONTH),
+                getMonthOrDefault(accessor),
+                getDayOrDefault(accessor),
                 getHourOrDefault(accessor),
                 getOrDefault(accessor, ChronoField.MINUTE_OF_HOUR),
                 getOrDefault(accessor, ChronoField.SECOND_OF_MINUTE),
@@ -382,6 +382,28 @@ public static int getOrDefault(final TemporalAccessor accessor, final ChronoFiel
         return accessor.isSupported(field) ? accessor.get(field) : /* default value */ 0;
     }
 
+    /**
+     * get month from accessor, if not support day field, return 1
+     */
+    public static int getMonthOrDefault(final TemporalAccessor accessor) {
+        if (accessor.isSupported(ChronoField.MONTH_OF_YEAR)) {
+            return accessor.get(ChronoField.MONTH_OF_YEAR);
+        } else {
+            return 1;
+        }
+    }
+
+    /**
+     * get day from accessor, if not support day field, return 1
+     */
+    public static int getDayOrDefault(final TemporalAccessor accessor) {
+        if (accessor.isSupported(ChronoField.DAY_OF_MONTH)) {
+            return accessor.get(ChronoField.DAY_OF_MONTH);
+        } else {
+            return 1;
+        }
+    }
+
     /**
      * get hour from accessor, if not support hour field, return 0
      */

fe/fe-core/src/test/java/org/apache/doris/mtmv/MTMVUtilTest.java

@@ -47,5 +47,13 @@ public void testGetExprTimeSec() throws AnalysisException {
         expr = new DateLiteral(Type.DATE, true);
         exprTimeSec = MTMVUtil.getExprTimeSec(expr, Optional.empty());
         Assert.assertEquals(253402185600L, exprTimeSec);
+
+        expr = new StringLiteral("202001");
+        exprTimeSec = MTMVUtil.getExprTimeSec(expr, Optional.of("%Y%m"));
+        Assert.assertEquals(1577808000L, exprTimeSec);
+
+        expr = new StringLiteral("2020");
+        exprTimeSec = MTMVUtil.getExprTimeSec(expr, Optional.of("%Y"));
+        Assert.assertEquals(1577808000L, exprTimeSec);
     }
 }

regression-test/data/correctness/test_str_to_date.out

@@ -19,6 +19,12 @@
 -- !const_test4 --
 \N
 
+-- !const_test5 --
+0000-01-01T09:30:17
+
+-- !const_test6 --
+0000-01-01T09:30:17
+
 -- !short_1 --
 2023-01-01
 
@@ -31,6 +37,12 @@
 -- !short_4 --
 \N
 
+-- !short_5 --
+2025-01-01
+
+-- !short_6 --
+2025-03-01
+
 -- !select_from_table2 --
 1	2019-12-01T00:00
 2	2020-12-03T00:00

regression-test/data/mtmv_p0/test_limit_partition_mtmv.out

@@ -15,3 +15,6 @@
 1	2038-01-02
 2	2020-01-02
 
+-- !date_with_month --
+13	203801
+

regression-test/suites/correctness/test_str_to_date.groovy

@@ -62,19 +62,20 @@ suite("test_str_to_date") {
         exception "is invalid"
     }
 
-    test {
-        sql "SELECT /*+SET_VAR(debug_skip_fold_constant=false) */STR_TO_DATE('09:30:17', '%h:%i:%s');"
-        exception "is invalid"
-    }
-    test {
-        sql "SELECT /*+SET_VAR(debug_skip_fold_constant=true) */STR_TO_DATE('09:30:17', '%h:%i:%s');"
-        exception "is invalid"
-    }
+    qt_const_test5 """
+        SELECT /*+SET_VAR(debug_skip_fold_constant=false) */STR_TO_DATE('09:30:17', '%h:%i:%s');
+    """
+
+    qt_const_test6 """
+        SELECT /*+SET_VAR(debug_skip_fold_constant=false) */STR_TO_DATE('09:30:17', '%h:%i:%s');
+    """
 
     qt_short_1 " select STR_TO_DATE('2023', '%Y') "
     qt_short_2 " select STR_TO_DATE(null, '%Y') "
     qt_short_3 " select STR_TO_DATE('2023', null) "
     qt_short_4 " select STR_TO_DATE(null, null) "
+    qt_short_5 " select STR_TO_DATE('202501', '%Y%m') "
+    qt_short_6 " select STR_TO_DATE('202503', '%Y%m') "
 
     test {
         sql """

regression-test/suites/mtmv_p0/test_limit_partition_mtmv.groovy

@@ -237,4 +237,52 @@ suite("test_limit_partition_mtmv") {
     assertTrue(showPartitionsResult.toString().contains("p_20380101_20380103"))
     assertTrue(showPartitionsResult.toString().contains("p_20200101_20200103"))
     order_qt_date_range_all "SELECT * FROM ${mvName} order by k1,k2"
+
+    // with month format
+    sql """drop table if exists `${tableName}`"""
+    sql """drop materialized view if exists ${mvName};"""
+    sql """
+        CREATE TABLE `${tableName}` (
+            id  BIGINT,
+            dt  CHAR(6)
+        )
+        DUPLICATE KEY(id)
+        PARTITION BY LIST(dt)
+        (
+            PARTITION p202511 VALUES IN ("202311"),
+            PARTITION p202512 VALUES IN ("202312"),
+            PARTITION p203801 VALUES IN ("203801")
+        )
+        DISTRIBUTED BY HASH(id) BUCKETS 2
+        PROPERTIES ("replication_num" = "1");
+        """
+    sql """
+        insert into ${tableName} values(11,"202311"),(12,"202312"),(13,"203801");
+        """
+
+    sql """
+        CREATE MATERIALIZED VIEW ${mvName}
+            BUILD DEFERRED REFRESH AUTO ON MANUAL
+            partition by(`dt`)
+            DISTRIBUTED BY RANDOM BUCKETS 2
+            PROPERTIES (
+            'replication_num' = '1',
+            'partition_sync_limit'='2',
+            'partition_sync_time_unit'='MONTH',
+            'partition_date_format'='%Y%m'
+            )
+            AS
+            SELECT * FROM ${tableName};
+    """
+    sql """
+            REFRESH MATERIALIZED VIEW ${mvName} AUTO
+        """
+    jobName = getJobName(dbName, mvName);
+    log.info(jobName)
+    waitingMTMVTaskFinished(jobName)
+    showPartitionsResult = sql """show partitions from ${mvName}"""
+    logger.info("showPartitionsResult: " + showPartitionsResult.toString())
+    assertEquals(1, showPartitionsResult.size())
+    assertTrue(showPartitionsResult.toString().contains("p_203801"))
+    order_qt_date_with_month "SELECT * FROM ${mvName} order by dt"
 }