#include "Framework/ExpressionHelpers.h"
#include "Framework/RuntimeError.h"
#include "Framework/VariantHelpers.h"
#include "arrow/table.h"
#include "gandiva/tree_expr_builder.h"
#include <algorithm>
#include <iostream>
#include <set>
#include <stack>
#include <unordered_map>

Namespaces
namespace	o2
	a couple of static helper functions to create timestamp values for CCDB queries or override obsolete objects

namespace	o2::framework
	Defining PrimaryVertex explicitly as messageable.

namespace	o2::framework::expressions

Functions
std::shared_ptr< arrow::DataType >	o2::framework::expressions::concreteArrowType (atype::type type)

std::string	o2::framework::expressions::upcastTo (atype::type f)

bool	o2::framework::expressions::operator== (DatumSpec const &lhs, DatumSpec const &rhs)

std::ostream &	o2::framework::expressions::operator<< (std::ostream &os, DatumSpec const &spec)

void	o2::framework::expressions::updatePlaceholders (Filter &filter, InitContext &context)
	Update placeholder nodes from context.

const char *	o2::framework::expressions::stringType (atype::type t)

Operations	o2::framework::expressions::createOperations (Filter const &expression)
	Function to create an internal operation sequence from a filter tree.

gandiva::ConditionPtr	o2::framework::expressions::makeCondition (gandiva::NodePtr node)
	Function to create gandiva condition expression from generic gandiva expression tree.

gandiva::ExpressionPtr	o2::framework::expressions::makeExpression (gandiva::NodePtr node, gandiva::FieldPtr result)
	Function to create gandiva projecting expression from generic gandiva expression tree.

std::shared_ptr< gandiva::Filter >	o2::framework::expressions::createFilter (gandiva::SchemaPtr const &Schema, Operations const &opSpecs)
	Function to create gandiva filter from operation sequence.

std::shared_ptr< gandiva::Filter >	o2::framework::expressions::createFilter (gandiva::SchemaPtr const &Schema, gandiva::ConditionPtr condition)
	Function to create gandiva filter from gandiva condition.

std::shared_ptr< gandiva::Projector >	o2::framework::expressions::createProjector (gandiva::SchemaPtr const &Schema, Operations const &opSpecs, gandiva::FieldPtr result)
	Function to create gandiva projector from operation sequence.

std::shared_ptr< gandiva::Projector >	o2::framework::expressions::createProjector (gandiva::SchemaPtr const &Schema, Projector &&p, gandiva::FieldPtr result)
	Function to create gandiva projector directly from expression.

std::shared_ptr< gandiva::Projector >	o2::framework::expressions::createProjectorHelper (size_t nColumns, expressions::Projector *projectors, std::shared_ptr< arrow::Schema > schema, std::vector< std::shared_ptr< arrow::Field > > const &fields)

gandiva::Selection	o2::framework::expressions::createSelection (std::shared_ptr< arrow::Table > const &table, std::shared_ptr< gandiva::Filter > const &gfilter)
	Function for creating gandiva selection from prepared gandiva expressions tree.

gandiva::Selection	o2::framework::expressions::createSelection (std::shared_ptr< arrow::Table > const &table, Filter const &expression)
	Function for creating gandiva selection from our internal filter tree.

auto	o2::framework::expressions::createProjection (std::shared_ptr< arrow::Table > const &table, std::shared_ptr< gandiva::Projector > const &gprojector)

gandiva::NodePtr	o2::framework::expressions::createExpressionTree (Operations const &opSpecs, gandiva::SchemaPtr const &Schema)
	Function to create gandiva expression tree from operation sequence.

bool	o2::framework::expressions::isTableCompatible (std::set< uint32_t > const &hashes, Operations const &specs)
	Function to check compatibility of a given arrow schema with operation sequence.

void	o2::framework::expressions::updateExpressionInfos (expressions::Filter const &filter, std::vector< ExpressionInfo > &eInfos)
	Function for attaching gandiva filters to to compatible task inputs.

void	o2::framework::expressions::updateFilterInfo (ExpressionInfo &info, std::shared_ptr< arrow::Table > &table)

Namespaces

Functions