Class Analyzer::LowerExpr¶

class LowerExpr : public Analyzer::Expr ¶

Expression class for the LOWER (lowercase) string function. The “arg” constructor parameter must be an expression that resolves to a string datatype (e.g. TEXT).

Public Functions

LowerExpr(std::shared_ptr<Analyzer::Expr> arg)¶

const Expr *get_arg() const¶

const std::shared_ptr<Analyzer::Expr> get_own_arg() const¶

void collect_rte_idx(std::set<int> &rte_idx_set) const¶

void collect_column_var(std::set<const ColumnVar *, bool(*colvar_set)( const ColumnVar *, const ColumnVar *)>&, bool include_agg) const¶

std::shared_ptr<Analyzer::Expr> rewrite_with_targetlist(const std::vector<std::shared_ptr<TargetEntry>> &tlist) const¶

std::shared_ptr<Analyzer::Expr> rewrite_with_child_targetlist(const std::vector<std::shared_ptr<TargetEntry>> &tlist) const¶

std::shared_ptr<Analyzer::Expr> rewrite_agg_to_var(const std::vector<std::shared_ptr<TargetEntry>> &tlist) const¶

std::shared_ptr<Analyzer::Expr> deep_copy() const¶

void group_predicates(std::list<const Expr *> &scan_predicates, std::list<const Expr *> &join_predicates, std::list<const Expr *> &const_predicates) const¶

bool operator==(const Expr &rhs) const¶

std::string toString() const¶

void find_expr(bool (*f)(const Expr *), std::list<const Expr *> &expr_list, ) const¶

Private Members

std::shared_ptr<Analyzer::Expr> arg¶