#pragma once #include #include namespace DB { class ASTStorage; #define JOIN_RELATED_SETTINGS(M) \ M(Bool, persistency, true, "Disable setting to avoid the overhead of writing to disk for StorageJoin", 0) #define LIST_OF_JOIN_SETTINGS(M) \ JOIN_RELATED_SETTINGS(M) \ FORMAT_FACTORY_SETTINGS(M) DECLARE_SETTINGS_TRAITS(joinSettingsTraits, LIST_OF_JOIN_SETTINGS) /** Settings for the Join engine. * Could be loaded from a CREATE TABLE query (SETTINGS clause). */ struct JoinSettings : public BaseSettings { void loadFromQuery(ASTStorage & storage_def); }; }