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#pragma once
#include "clickhouse_config.h"
#if USE_EMBEDDED_COMPILER
#include <Core/SortDescription.h>
#include <Functions/IFunction.h>
#include <AggregateFunctions/IAggregateFunction.h>
#include <Interpreters/JIT/CHJIT.h>
namespace DB
{
/** ColumnData structure to pass into compiled function.
* data is raw column data.
* null_data is null map column raw data.
*/
struct ColumnData
{
const char * data = nullptr;
const char * null_data = nullptr;
};
/** Returns ColumnData for column.
* If constant column is passed, LOGICAL_ERROR will be thrown.
*/
ColumnData getColumnData(const IColumn * column, size_t skip_rows = 0);
using ColumnDataRowsOffset = size_t;
using ColumnDataRowsSize = size_t;
using JITCompiledFunction = void (*)(ColumnDataRowsSize, ColumnData *);
struct CompiledFunction
{
JITCompiledFunction compiled_function;
CHJIT::CompiledModule compiled_module;
};
/** Compile function to native jit code using CHJIT instance.
* It is client responsibility to match ColumnData arguments size with
* function arguments size and additional ColumnData for result.
*/
CompiledFunction compileFunction(CHJIT & jit, const IFunctionBase & function);
struct AggregateFunctionWithOffset
{
const IAggregateFunction * function;
size_t aggregate_data_offset;
};
using JITCreateAggregateStatesFunction = void (*)(AggregateDataPtr);
using JITAddIntoAggregateStatesFunction = void (*)(ColumnDataRowsOffset, ColumnDataRowsOffset, ColumnData *, AggregateDataPtr *);
using JITAddIntoAggregateStatesFunctionSinglePlace = void (*)(ColumnDataRowsOffset, ColumnDataRowsOffset, ColumnData *, AggregateDataPtr);
using JITMergeAggregateStatesFunction = void (*)(AggregateDataPtr *, AggregateDataPtr *, size_t);
using JITInsertAggregateStatesIntoColumnsFunction = void (*)(ColumnDataRowsOffset, ColumnDataRowsOffset, ColumnData *, AggregateDataPtr *);
struct CompiledAggregateFunctions
{
JITCreateAggregateStatesFunction create_aggregate_states_function;
JITAddIntoAggregateStatesFunction add_into_aggregate_states_function;
JITAddIntoAggregateStatesFunctionSinglePlace add_into_aggregate_states_function_single_place;
JITMergeAggregateStatesFunction merge_aggregate_states_function;
JITInsertAggregateStatesIntoColumnsFunction insert_aggregates_into_columns_function;
/// Count of functions that were compiled
size_t functions_count;
/// Compiled module. It is client responsibility to destroy it after functions are no longer required.
CHJIT::CompiledModule compiled_module;
};
/** Compile aggregate function to native jit code using CHJIT instance.
*
* JITCreateAggregateStatesFunction will initialize aggregate data ptr with initial aggregate states values.
* JITAddIntoAggregateStatesFunction will update aggregate states for aggregate functions with specified ColumnData.
* JITAddIntoAggregateStatesFunctionSinglePlace will update single aggregate state for aggregate functions with specified ColumnData.
* JITMergeAggregateStatesFunction will merge aggregate states for aggregate functions.
* JITInsertAggregateStatesIntoColumnsFunction will insert aggregate states for aggregate functions into result columns.
*/
CompiledAggregateFunctions compileAggregateFunctions(CHJIT & jit, const std::vector<AggregateFunctionWithOffset> & functions, std::string functions_dump_name);
using JITSortDescriptionFunc = int8_t (*)(size_t, size_t, ColumnData *, ColumnData *);
struct CompiledSortDescriptionFunction
{
JITSortDescriptionFunc comparator_function;
CHJIT::CompiledModule compiled_module;
};
CompiledSortDescriptionFunction compileSortDescription(
CHJIT & jit,
SortDescription & description,
const DataTypes & sort_description_types,
const std::string & sort_description_dump);
}
#endif
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