Allow modify some other settings

src/Databases/PostgreSQL/DatabaseMaterializedPostgreSQL.cpp

@@ -151,11 +151,9 @@ void DatabaseMaterializedPostgreSQL::applySettings(const SettingsChanges & setti
             if (!local_context->isInternalQuery())
                 throw Exception(ErrorCodes::QUERY_NOT_ALLOWED, "Changing setting `{}` is not allowed", change.name);
         }
-        else if (change.name == "materialized_postgresql_allow_automatic_update")
+        else if ((change.name == "materialized_postgresql_allow_automatic_update") || (change.name == "materialized_postgresql_max_block_size"))
-        {
-        }
-        else if (change.name == "materialized_postgresql_max_block_size")
         {
+            replication_handler->setSetting(change);
         }
         else
         {

src/Storages/PostgreSQL/MaterializedPostgreSQLConsumer.cpp

@@ -8,6 +8,7 @@
 #include <DataTypes/DataTypeNullable.h>
 #include <Interpreters/Context.h>
 #include <Interpreters/InterpreterInsertQuery.h>
+#include <Common/SettingsChanges.h>
 
 
 namespace DB
@@ -634,6 +635,15 @@ void MaterializedPostgreSQLConsumer::removeNested(const String & postgres_table_
 }
 
 
+void MaterializedPostgreSQLConsumer::setSetting(const SettingChange & setting)
+{
+    if (setting.name == "materialized_postgresql_max_block_size")
+        max_block_size = setting.value.safeGet<UInt64>();
+    else if (setting.name == "materialized_postgresql_allow_automatic_update")
+        allow_automatic_update = setting.value.safeGet<bool>();
+}
+
+
 /// Read binary changes from replication slot via COPY command (starting from current lsn in a slot).
 bool MaterializedPostgreSQLConsumer::readFromReplicationSlot()
 {

src/Storages/PostgreSQL/MaterializedPostgreSQLConsumer.h

@@ -13,6 +13,7 @@
 
 namespace DB
 {
+struct SettingChange;
 
 class MaterializedPostgreSQLConsumer
 {
@@ -40,6 +41,8 @@ public:
 
     void removeNested(const String & postgres_table_name);
 
+    void setSetting(const SettingChange & setting);
+
 private:
     /// Read approximarely up to max_block_size changes from WAL.
     bool readFromReplicationSlot();
@@ -110,7 +113,7 @@ private:
     /// current_lsn converted from String to Int64 via getLSNValue().
     UInt64 lsn_value;
 
-    const size_t max_block_size;
+    size_t max_block_size;
     bool allow_automatic_update;
 
     String table_to_insert;

src/Storages/PostgreSQL/PostgreSQLReplicationHandler.cpp

@@ -451,6 +451,14 @@ void PostgreSQLReplicationHandler::removeTableFromPublication(pqxx::nontransacti
 }
 
 
+void PostgreSQLReplicationHandler::setSetting(const SettingChange & setting)
+{
+    consumer_task->deactivate();
+    consumer->setSetting(setting);
+    consumer_task->schedule();
+}
+
+
 void PostgreSQLReplicationHandler::shutdownFinal()
 {
     try

src/Storages/PostgreSQL/PostgreSQLReplicationHandler.h

@@ -10,6 +10,7 @@ namespace DB
 {
 
 class StorageMaterializedPostgreSQL;
+struct SettingChange;
 
 class PostgreSQLReplicationHandler
 {
@@ -50,6 +51,8 @@ public:
 
     void removeTableFromReplication(const String & postgres_table_name);
 
+    void setSetting(const SettingChange & setting);
+
 private:
     using MaterializedStorages = std::unordered_map<String, StorageMaterializedPostgreSQL *>;