Test for dictionaries with comments

tests/queries/0_stateless/02024_create_dictionary_with_comment.sql

@@ -0,0 +1,32 @@
+-----------------------------------------------------------------------------------
+-- Check that `DICTIONARY` can be created with a `COMMENT` clause
+-- and comment is visible both in `comment` column of `system.dictionaries`
+-- and `SHOW CREATE DICTIONARY`.
+-----------------------------------------------------------------------------------
+
+-- prerequisites
+CREATE TABLE source_table
+(
+    id UInt64,
+    value String
+) ENGINE = Memory();
+
+INSERT INTO source_table VALUES (1, 'First');
+INSERT INTO source_table VALUES (2, 'Second');
+
+DROP DICTIONARY IF EXISTS 2024_dictionary_with_comment;
+
+CREATE DICTIONARY 2024_dictionary_with_comment
+(
+    id UInt64,
+    value String
+)
+PRIMARY KEY id
+SOURCE(CLICKHOUSE(HOST 'localhost' PORT tcpPort() TABLE 'source_table'))
+LAYOUT(FLAT())
+LIFETIME(MIN 0 MAX 1000)
+COMMENT 'Test dictionary with comment';
+
+SHOW CREATE DICTIONARY 2024_dictionary_with_comment;
+
+SELECT comment FROM system.dictionaries WHERE name == '2024_dictionary_with_comment';