ClickHouse/src/Interpreters/executeDDLQueryOnCluster.h
2021-07-22 03:38:28 +03:00

35 lines
1.1 KiB
C++

#pragma once
#include <DataStreams/BlockIO.h>
#include <Processors/Sources/SourceWithProgress.h>
#include <Interpreters/Context_fwd.h>
#include <Parsers/IAST_fwd.h>
#include <DataStreams/IBlockInputStream.h>
namespace zkutil
{
class ZooKeeper;
}
namespace DB
{
class AccessRightsElements;
struct DDLLogEntry;
/// Returns true if provided ALTER type can be executed ON CLUSTER
bool isSupportedAlterType(int type);
/// Pushes distributed DDL query to the queue.
/// Returns DDLQueryStatusSource, which reads results of query execution on each host in the cluster.
BlockIO executeDDLQueryOnCluster(const ASTPtr & query_ptr, ContextPtr context);
BlockIO executeDDLQueryOnCluster(const ASTPtr & query_ptr, ContextPtr context, const AccessRightsElements & query_requires_access);
BlockIO executeDDLQueryOnCluster(const ASTPtr & query_ptr, ContextPtr context, AccessRightsElements && query_requires_access);
BlockIO getDistributedDDLStatus(
const String & node_path, const DDLLogEntry & entry, ContextPtr context, const std::optional<Strings> & hosts_to_wait = {});
}