Merge pull request #66422 from ClickHouse/backport/24.3/66395

Backport #66395 to 24.3: Ignore subquery for IN in DDLLoadingDependencyVisitor

src/Databases/DDLLoadingDependencyVisitor.cpp

@@ -11,6 +11,7 @@
 #include <Parsers/ASTFunction.h>
 #include <Parsers/ASTIdentifier.h>
 #include <Parsers/ASTLiteral.h>
+#include <Parsers/ASTSubquery.h>
 #include <Parsers/ASTSelectWithUnionQuery.h>
 #include <Parsers/ASTTTLElement.h>
 #include <Poco/String.h>
@@ -200,6 +201,13 @@ void DDLLoadingDependencyVisitor::extractTableNameFromArgument(const ASTFunction
         qualified_name.database = table_identifier->getDatabaseName();
         qualified_name.table = table_identifier->shortName();
     }
+    else if (arg->as<ASTSubquery>())
+    {
+        /// Allow IN subquery.
+        /// Do not add tables from the subquery into dependencies,
+        /// because CREATE will succeed anyway.
+        return;
+    }
     else
     {
         assert(false);

tests/queries/0_stateless/02841_not_ready_set_constraints.reference

@@ -1 +1,2 @@
 42
+42

tests/queries/0_stateless/02841_not_ready_set_constraints.sql

@@ -17,3 +17,27 @@ ENGINE = MergeTree ORDER BY conversation;
 INSERT INTO t2(conversation) VALUES (42);
 
 select * from t2;
+
+drop table t1;
+
+INSERT INTO t2(conversation) VALUES (42); -- { serverError UNKNOWN_TABLE }
+
+drop table t2;
+
+CREATE TABLE t2 (
+    `conversation` UInt64,
+    CONSTRAINT constraint_conversation CHECK conversation IN (SELECT id FROM t1)
+)
+ENGINE = MergeTree ORDER BY conversation;
+
+INSERT INTO t2(conversation) VALUES (42); -- { serverError UNKNOWN_TABLE }
+
+CREATE TABLE t1 (
+    `id` UInt64
+)
+ENGINE = MergeTree ORDER BY id;
+
+INSERT INTO t1(id) VALUES (42);
+
+INSERT INTO t2(conversation) VALUES (42);
+select * from t2;