ClickHouse/src/Analyzer/TableNode.cpp

90 lines
2.5 KiB
C++

#include <Analyzer/TableNode.h>
#include <IO/WriteBuffer.h>
#include <IO/WriteHelpers.h>
#include <IO/Operators.h>
#include <Parsers/ASTIdentifier.h>
#include <Storages/IStorage.h>
#include <Interpreters/Context.h>
namespace DB
{
TableNode::TableNode(StoragePtr storage_, TableLockHolder storage_lock_, StorageSnapshotPtr storage_snapshot_)
: storage(std::move(storage_))
, storage_id(storage->getStorageID())
, storage_lock(std::move(storage_lock_))
, storage_snapshot(std::move(storage_snapshot_))
{
}
TableNode::TableNode() : storage_id("system", "one") {}
void TableNode::dumpTreeImpl(WriteBuffer & buffer, FormatState & format_state, size_t indent) const
{
buffer << std::string(indent, ' ') << "TABLE id: " << format_state.getNodeId(this);
if (hasAlias())
buffer << ", alias: " << getAlias();
buffer << ", table_name: " << storage_id.getFullNameNotQuoted();
if (table_expression_modifiers)
{
buffer << ", ";
table_expression_modifiers->dump(buffer);
}
}
bool TableNode::isEqualImpl(const IQueryTreeNode & rhs) const
{
const auto & rhs_typed = assert_cast<const TableNode &>(rhs);
if (table_expression_modifiers && rhs_typed.table_expression_modifiers && table_expression_modifiers != rhs_typed.table_expression_modifiers)
return false;
else if (table_expression_modifiers && !rhs_typed.table_expression_modifiers)
return false;
else if (!table_expression_modifiers && rhs_typed.table_expression_modifiers)
return false;
return storage_id == rhs_typed.storage_id;
}
void TableNode::updateTreeHashImpl(HashState & state) const
{
auto full_name = storage_id.getFullNameNotQuoted();
state.update(full_name.size());
state.update(full_name);
if (table_expression_modifiers)
table_expression_modifiers->updateTreeHash(state);
}
String TableNode::getName() const
{
return storage->getStorageID().getFullNameNotQuoted();
}
ASTPtr TableNode::toASTImpl() const
{
return std::make_shared<ASTTableIdentifier>(storage_id.getDatabaseName(), storage_id.getTableName());
}
QueryTreeNodePtr TableNode::cloneImpl() const
{
TableNodePtr result_table_node(new TableNode());
result_table_node->storage = storage;
result_table_node->storage_id = storage_id;
result_table_node->storage_lock = storage_lock;
result_table_node->storage_snapshot = storage_snapshot;
result_table_node->table_expression_modifiers = table_expression_modifiers;
return result_table_node;
}
}