bool MergeTreeMinMaxIndex::mayBenefitFromIndexForIn(const ASTPtr & node) const
{
const String column_name = node->getColumnName();
for (const auto & name : columns)
if (column_name == name)
return true;
if (const auto * func = typeid_cast<const ASTFunction *>(node.get()))
if (func->arguments->children.size() == 1)
return mayBenefitFromIndexForIn(func->arguments->children.front());
return false;
}
StorageDistributed::StorageDistributed(
const std::string & name_,
NamesAndTypesListPtr columns_,
const String & remote_database_,
const String & remote_table_,
const Cluster & cluster_,
Context & context_,
const ASTPtr & sharding_key_,
const String & data_path_)
: name(name_), columns(columns_),
remote_database(remote_database_), remote_table(remote_table_),
context(context_), cluster(cluster_),
sharding_key_expr(sharding_key_ ? ExpressionAnalyzer(sharding_key_, context, nullptr, *columns).getActions(false) : nullptr),
sharding_key_column_name(sharding_key_ ? sharding_key_->getColumnName() : String{}),
write_enabled(!data_path_.empty() && (((cluster.getLocalShardCount() + cluster.getRemoteShardCount()) < 2) || sharding_key_)),
path(data_path_.empty() ? "" : (data_path_ + escapeForFileName(name) + '/'))
{
createDirectoryMonitors();
}
