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#pragma once
#include <Parsers/IAST.h>
#include <Interpreters/Context_fwd.h>
#include <Processors/Formats/IInputFormat.h>
#include <cstddef>
#include <memory>
namespace DB
{
class Pipe;
/// Prepares a input format, which produce data containing in INSERT query.
InputFormatPtr getInputFormatFromASTInsertQuery(
const ASTPtr & ast,
bool with_buffers,
const Block & header,
ContextPtr context,
const ASTPtr & input_function);
/// Prepares a pipe from input format got from ASTInsertQuery,
/// which produce data containing in INSERT query.
Pipe getSourceFromInputFormat(
const ASTPtr & ast,
InputFormatPtr format,
ContextPtr context,
const ASTPtr & input_function);
/// Prepares a pipe which produce data containing in INSERT query.
Pipe getSourceFromASTInsertQuery(
const ASTPtr & ast,
bool with_buffers,
const Block & header,
ContextPtr context,
const ASTPtr & input_function);
class ReadBuffer;
/// Prepares a read buffer, that allows to read inlined data
/// from ASTInsertQuert directly, and from tail buffer, if it exists.
std::unique_ptr<ReadBuffer> getReadBufferFromASTInsertQuery(const ASTPtr & ast);
}
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