eckit::sql::expression::function::FunctionEQ class

#include <eckit/sql/expression/function/FunctionEQ.h>

Base classes

class FunctionExpression

Public static functions

static auto equal(const SQLExpression& l, const SQLExpression& r, bool& missing) -> bool

static void trimStringInDouble(char*& p, size_t& len)

static auto arity() -> int

static auto help() -> const char*

static auto number(double) -> std::shared_ptr<SQLExpression>

Constructors, destructors, conversion operators

FunctionEQ(const std::string&, const expression::Expressions&)

FunctionEQ(const FunctionEQ&)

~FunctionEQ()

Public functions

auto clone() const -> std::shared_ptr<SQLExpression> override

void print(std::ostream& s) const override

void preprepare(SQLSelect&) override

void prepare(SQLSelect& sql) override

void updateType(SQLSelect& sql) override

void cleanup(SQLSelect& sql) override

auto isConstant() const -> bool override

auto isAggregate() const -> bool override

void partialResult() override

auto reshift(int minColumnShift) const -> std::shared_ptr<SQLExpression> override

auto args() -> expression::Expressions&

void eval(double* out, bool& missing) const virtual

auto evalAsString(bool& missing) const -> std::string virtual

auto andSplit(expression::Expressions&) -> bool virtual

auto isNumber() const -> bool virtual

void title(const std::string&) virtual

auto title() const -> std::string virtual

void output(SQLOutput&) const virtual

void expandStars(const std::vector<std::reference_wrapper<const SQLTable>>&, expression::Expressions&) virtual

auto isBitfield() const -> bool virtual

auto bitfieldDef() const -> BitfieldDef

auto hasMissingValue() const -> bool virtual

auto missingValue() const -> double

auto shared_from_this(T... args) -> T

auto weak_from_this(T... args) -> T

Private functions

auto type() const -> const eckit::sql::type::SQLType* override

auto eval(bool& missing) const -> double override

auto simplify(bool&) -> std::shared_ptr<SQLExpression> override

Function documentation