[fix](nereids) temp partition is always pruned (#27636)

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

@@ -129,6 +129,16 @@ public class PartitionInfo implements Writable {
         }
     }
 
+    /**
+     * @return both normal partition and temp partition
+     */
+    public Map<Long, PartitionItem> getAllPartitions() {
+        HashMap all = new HashMap<>();
+        all.putAll(idToTempItem);
+        all.putAll(idToItem);
+        return all;
+    }
+
     public PartitionItem getItem(long partitionId) {
         PartitionItem item = idToItem.get(partitionId);
         if (item == null) {

fe/fe-core/src/main/java/org/apache/doris/nereids/rules/expression/rules/PartitionPruner.java

@@ -103,7 +103,7 @@ public class PartitionPruner extends DefaultExpressionRewriter<Void> {
      */
     public static List<Long> prune(List<Slot> partitionSlots, Expression partitionPredicate,
             PartitionInfo partitionInfo, CascadesContext cascadesContext, PartitionTableType partitionTableType) {
-        return prune(partitionSlots, partitionPredicate, partitionInfo.getIdToItem(false), cascadesContext,
+        return prune(partitionSlots, partitionPredicate, partitionInfo.getAllPartitions(), cascadesContext,
                 partitionTableType);
     }
 

regression-test/data/nereids_syntax_p0/select_partition.out

@@ -24,3 +24,6 @@
 -- !sql --
 1	aaa	aaa
 
+-- !sql --
+16	1234	t
+

regression-test/suites/nereids_syntax_p0/select_partition.groovy

@@ -88,4 +88,36 @@ suite("query_on_specific_partition") {
     qt_sql """
         SELECT * FROM test_iot PARTITION p1;
     """
+
+    sql """
+            DROP TABLE IF EXISTS ut_p;
+        """
+
+    sql """
+        CREATE TABLE ut_p (
+            id BIGINT,
+            val BIGINT,
+            str VARCHAR(114)
+        ) unique KEY(`id`)
+        PARTITION BY RANGE(`id`)
+        (
+            PARTITION `p1` VALUES LESS THAN ('5'),
+            PARTITION `p2` VALUES LESS THAN ('10')
+        )
+        DISTRIBUTED BY HASH(`id`) BUCKETS 3
+        PROPERTIES (
+        "replication_num"="1"
+        );
+    """
+
+    sql """ALTER TABLE ut_p ADD TEMPORARY PARTITION tp1 VALUES [("15"), ("20"));"""
+
+    sql "INSERT INTO ut_p TEMPORARY PARTITION(tp1) values(16,1234, 't');"
+
+    sql "SET enable_fallback_to_original_planner=false"
+
+    qt_sql """select * from ut_p temporary partitions(tp1);"""
+
+
+    
 }