fix errors found by Style Check

src/Interpreters/InterpreterShowTablesQuery.cpp

@@ -8,7 +8,6 @@
 #include <Common/typeid_cast.h>
 #include <iomanip>
 #include <sstream>
-#include <iostream>
 
 
 namespace DB
@@ -41,23 +40,23 @@ String InterpreterShowTablesQuery::getRewrittenQuery()
 	rewritten_query << "SELECT cluster FROM system.clusters";
 
         if (!query.like.empty())
-	{
-	    rewritten_query << " WHERE cluster " << (query.not_like ? "NOT " : "") << "LIKE " << std::quoted(query.like, '\'');
-	}
+        {
+            rewritten_query << " WHERE cluster " << (query.not_like ? "NOT " : "") << "LIKE " << std::quoted(query.like, '\'');
+        }
 
-	if (query.limit_length)
+        if (query.limit_length)
             rewritten_query << " LIMIT " << query.limit_length;
 
-	return rewritten_query.str();
+        return rewritten_query.str();
     }
     else if (query.cluster)
     {
         std::stringstream rewritten_query;
-	rewritten_query << "SELECT * FROM system.clusters";
+        rewritten_query << "SELECT * FROM system.clusters";
 
         rewritten_query << " WHERE cluster = " << std::quoted(query.cluster_str, '\'');
 
-	return rewritten_query.str();
+        return rewritten_query.str();
     }
 
     if (query.temporary && !query.from.empty())

src/Parsers/ASTShowTablesQuery.cpp

@@ -35,7 +35,7 @@ void ASTShowTablesQuery::formatQueryImpl(const FormatSettings & settings, Format
     else if (cluster)
     {
         settings.ostr << (settings.hilite ? hilite_keyword : "") << "SHOW CLUSTER" << (settings.hilite ? hilite_none : "");
-	settings.ostr << " " << backQuoteIfNeed(cluster_str);
+        settings.ostr << " " << backQuoteIfNeed(cluster_str);
     }
     else
     {

src/Parsers/ParserShowTablesQuery.cpp

@@ -9,7 +9,6 @@
 #include <Parsers/parseIdentifierOrStringLiteral.h>
 
 #include <Common/typeid_cast.h>
-#include <common/logger_useful.h>
 
 
 namespace DB

tests/queries/0_stateless/01293_show_clusters.reference

@@ -0,0 +1,11 @@
+test_cluster_two_shards
+test_cluster_two_shards
+test_cluster_two_shards_localhost
+test_cluster_two_shards_localhost
+test_shard_localhost
+test_shard_localhost[1]
+test_shard_localhost_secure
+test_unavailable_shard
+test_unavailable_shard
+test_cluster_two_shards
+test_shard_localhost	1	1	1	localhost	::1	9000	1	default		0	0