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#pragma once
#include <QueryPipeline/BlockIO.h>
#include <Interpreters/IInterpreter.h>
#include <Parsers/ASTInsertQuery.h>
#include <Storages/StorageInMemoryMetadata.h>
#include <Common/ThreadStatus.h>
namespace DB
{
class Chain;
class ThreadStatus;
struct ThreadStatusesHolder;
using ThreadStatusesHolderPtr = std::shared_ptr<ThreadStatusesHolder>;
/** Interprets the INSERT query.
*/
class InterpreterInsertQuery : public IInterpreter, WithContext
{
public:
InterpreterInsertQuery(
const ASTPtr & query_ptr_,
ContextPtr context_,
bool allow_materialized_ = false,
bool no_squash_ = false,
bool no_destination_ = false,
bool async_insert_ = false);
/** Prepare a request for execution. Return block streams
* - the stream into which you can write data to execute the query, if INSERT;
* - the stream from which you can read the result of the query, if SELECT and similar;
* Or nothing if the request INSERT SELECT (self-sufficient query - does not accept the input data, does not return the result).
*/
BlockIO execute() override;
StorageID getDatabaseTable() const;
Chain buildChain(
const StoragePtr & table,
const StorageMetadataPtr & metadata_snapshot,
const Names & columns,
ThreadStatusesHolderPtr thread_status_holder = {},
std::atomic_uint64_t * elapsed_counter_ms = nullptr);
static void extendQueryLogElemImpl(QueryLogElement & elem, ContextPtr context_);
void extendQueryLogElemImpl(QueryLogElement & elem, const ASTPtr & ast, ContextPtr context_) const override;
StoragePtr getTable(ASTInsertQuery & query);
Block getSampleBlock(const ASTInsertQuery & query, const StoragePtr & table, const StorageMetadataPtr & metadata_snapshot) const;
bool supportsTransactions() const override { return true; }
void addBuffer(std::unique_ptr<ReadBuffer> buffer) { owned_buffers.push_back(std::move(buffer)); }
private:
Block getSampleBlock(const Names & names, const StoragePtr & table, const StorageMetadataPtr & metadata_snapshot) const;
ASTPtr query_ptr;
const bool allow_materialized;
const bool no_squash;
const bool no_destination;
const bool async_insert;
std::vector<std::unique_ptr<ReadBuffer>> owned_buffers;
Chain buildSink(
const StoragePtr & table,
const StorageMetadataPtr & metadata_snapshot,
ThreadStatusesHolderPtr thread_status_holder,
ThreadGroupPtr running_group,
std::atomic_uint64_t * elapsed_counter_ms);
Chain buildPreSinkChain(
const Block & subsequent_header,
const StoragePtr & table,
const StorageMetadataPtr & metadata_snapshot,
const Block & query_sample_block,
ThreadStatusesHolderPtr thread_status_holder);
};
}
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