Analyzer::ColumnVar Class Reference

#include <Analyzer.h>

Inheritance diagram for Analyzer::ColumnVar:

Collaboration diagram for Analyzer::ColumnVar:

Public Member Functions
	ColumnVar (const SQLTypeInfo &ti, int r, int c, int i)
int	get_table_id () const
int	get_column_id () const
int	get_rte_idx () const
EncodingType	get_compression () const
int	get_comp_param () const
void	check_group_by (const std::list< std::shared_ptr< Analyzer::Expr >> &groupby) const override
std::shared_ptr< Analyzer::Expr >	deep_copy () const override
void	group_predicates (std::list< const Expr *> &scan_predicates, std::list< const Expr *> &join_predicates, std::list< const Expr *> &const_predicates) const override
void	collect_rte_idx (std::set< int > &rte_idx_set) const override
void	collect_column_var (std::set< const ColumnVar *, bool(*)(const ColumnVar *, const ColumnVar *)> &colvar_set, bool include_agg) const override
std::shared_ptr< Analyzer::Expr >	rewrite_with_targetlist (const std::vector< std::shared_ptr< TargetEntry >> &tlist) const override
std::shared_ptr< Analyzer::Expr >	rewrite_with_child_targetlist (const std::vector< std::shared_ptr< TargetEntry >> &tlist) const override
std::shared_ptr< Analyzer::Expr >	rewrite_agg_to_var (const std::vector< std::shared_ptr< TargetEntry >> &tlist) const override
bool	operator== (const Expr &rhs) const override
std::string	toString () const override
Public Member Functions inherited from Analyzer::Expr
	Expr (SQLTypes t, bool notnull)
	Expr (SQLTypes t, int d, bool notnull)
	Expr (SQLTypes t, int d, int s, bool notnull)
	Expr (const SQLTypeInfo &ti, bool has_agg=false)
virtual	~Expr ()
std::shared_ptr< Analyzer::Expr >	get_shared_ptr ()
const SQLTypeInfo &	get_type_info () const
void	set_type_info (const SQLTypeInfo &ti)
bool	get_contains_agg () const
void	set_contains_agg (bool a)
virtual std::shared_ptr< Analyzer::Expr >	add_cast (const SQLTypeInfo &new_type_info)
virtual std::shared_ptr< Analyzer::Expr >	normalize_simple_predicate (int &rte_idx) const
virtual void	print () const
virtual void	add_unique (std::list< const Expr *> &expr_list) const
virtual void	find_expr (bool(*f)(const Expr *), std::list< const Expr *> &expr_list) const
std::shared_ptr< Analyzer::Expr >	decompress ()
virtual void	get_domain (DomainSet &domain_set) const

Static Public Member Functions
static bool	colvar_comp (const ColumnVar *l, const ColumnVar *r)

Protected Attributes
int	table_id
int	column_id
int	rte_idx
Protected Attributes inherited from Analyzer::Expr
SQLTypeInfo	type_info
bool	contains_agg

Detailed Description

Definition at line 191 of file Analyzer.h.

Constructor & Destructor Documentation

ColumnVar()

Analyzer::ColumnVar::ColumnVar ( const SQLTypeInfo &  ti, int  r, int  c, int  i  )

inline

Definition at line 193 of file Analyzer.h.

      : Expr(ti), table_id(r), column_id(c), rte_idx(i) {}

Member Function Documentation

check_group_by()

void Analyzer::ColumnVar::check_group_by ( const std::list< std::shared_ptr< Analyzer::Expr >> &  groupby ) const

overridevirtual

Reimplemented from Analyzer::Expr.

Reimplemented in Analyzer::Var.

Definition at line 1353 of file Analyzer.cpp.

                                                               {
  if (!groupby.empty()) {
    for (auto e : groupby) {
      auto c = std::dynamic_pointer_cast<ColumnVar>(e);
      if (c && table_id == c->get_table_id() && column_id == c->get_column_id()) {
        return;
      }
    }
  }
  throw std::runtime_error(
      "expressions in the SELECT or HAVING clause must be an aggregate function or an "
      "expression "
      "over GROUP BY columns.");
}

collect_column_var()

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

inlineoverridevirtual

Reimplemented from Analyzer::Expr.

Definition at line 214 of file Analyzer.h.

References operator==().

                                       {
    colvar_set.insert(this);
  }

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collect_rte_idx()

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

inlineoverridevirtual

Reimplemented from Analyzer::Expr.

Reimplemented in Analyzer::Var.

Definition at line 206 of file Analyzer.h.

                                                                {
    rte_idx_set.insert(rte_idx);
  }

colvar_comp()

static bool Analyzer::ColumnVar::colvar_comp ( const ColumnVar *  l, const ColumnVar *  r  )

inlinestatic

Definition at line 209 of file Analyzer.h.

References get_column_id(), and get_table_id().

                                                                  {
    return l->get_table_id() < r->get_table_id() ||
           (l->get_table_id() == r->get_table_id() &&
            l->get_column_id() < r->get_column_id());
  }

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deep_copy()

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

overridevirtual

Implements Analyzer::Expr.

Reimplemented in Analyzer::Var.

Definition at line 59 of file Analyzer.cpp.

References Analyzer::Expr::type_info.

Referenced by rewrite_with_targetlist(), DeepCopyVisitor::visitColumnVar(), and anonymous_namespace{ScalarCodeGenerator.cpp}::UsedColumnExpressions::visitColumnVar().

                                                       {
  return makeExpr<ColumnVar>(type_info, table_id, column_id, rte_idx);
}

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get_column_id()

int Analyzer::ColumnVar::get_column_id ( ) const

inline

Definition at line 196 of file Analyzer.h.

Referenced by apply_simple_quals(), CodeGenerator::codegenColVar(), colvar_comp(), JoinHashTable::genHashTableKey(), Executor::getColumnDescriptor(), getExpressionRange(), getLeafColumnRange(), PlanState::getLocalColumnId(), ColumnFetcher::getOneColumnFragment(), Executor::getPhysicalColumnDescriptor(), needs_dictionary_translation(), operator==(), CodeGenerator::resolveGroupedColumnReference(), rewrite_agg_to_var(), rewrite_with_child_targetlist(), rewrite_with_targetlist(), UsedColumnsVisitor::visitColumnVar(), anonymous_namespace{JoinFilterPushDown.cpp}::BindFilterToOutermostVisitor::visitColumnVar(), anonymous_namespace{ScalarCodeGenerator.cpp}::UsedColumnExpressions::visitColumnVar(), ScalarExprToSql::visitColumnVar(), and anonymous_namespace{JoinFilterPushDown.cpp}::CollectInputColumnsVisitor::visitColumnVar().

{ return column_id; }

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get_comp_param()

int Analyzer::ColumnVar::get_comp_param ( ) const

inline

Definition at line 199 of file Analyzer.h.

Referenced by anonymous_namespace{ColumnIR.cpp}::get_col_decoder().

{ return type_info.get_comp_param(); }

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get_compression()

EncodingType Analyzer::ColumnVar::get_compression ( ) const

inline

Definition at line 198 of file Analyzer.h.

Referenced by anonymous_namespace{ColumnIR.cpp}::get_col_decoder().

{ return type_info.get_compression(); }

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get_rte_idx()

int Analyzer::ColumnVar::get_rte_idx ( ) const

inline

Definition at line 197 of file Analyzer.h.

Referenced by anonymous_namespace{ColumnIR.cpp}::adjusted_range_table_index(), CodeGenerator::codegenColumn(), CodeGenerator::codegenOuterJoinNullPlaceholder(), CodeGenerator::codegenRowId(), getExpressionRange(), PlanState::getLocalColumnId(), CodeGenerator::hashJoinLhsTuple(), Analyzer::BinOper::normalize_simple_predicate(), operator==(), CodeGenerator::resolveGroupedColumnReference(), rewrite_agg_to_var(), rewrite_with_child_targetlist(), anonymous_namespace{ScalarCodeGenerator.cpp}::UsedColumnExpressions::visitColumnVar(), MaxRangeTableIndexVisitor::visitColumnVar(), and AllRangeTableIndexVisitor::visitColumnVar().

{ return rte_idx; }

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get_table_id()

int Analyzer::ColumnVar::get_table_id ( ) const

inline

Definition at line 195 of file Analyzer.h.

Referenced by apply_simple_quals(), CodeGenerator::codegenColVar(), CodeGenerator::codegenRowId(), colvar_comp(), JoinHashTable::genHashTableKey(), Executor::getColumnDescriptor(), getExpressionRange(), JoinHashTable::getInnerQueryInfo(), getLeafColumnRange(), PlanState::getLocalColumnId(), ColumnFetcher::getOneColumnFragment(), Executor::getPhysicalColumnDescriptor(), anonymous_namespace{ArithmeticIR.cpp}::is_temporary_column(), needs_dictionary_translation(), operator==(), CodeGenerator::resolveGroupedColumnReference(), rewrite_agg_to_var(), rewrite_with_child_targetlist(), rewrite_with_targetlist(), var_ref(), anonymous_namespace{ScalarCodeGenerator.cpp}::UsedColumnExpressions::visitColumnVar(), anonymous_namespace{JoinFilterPushDown.cpp}::BindFilterToOutermostVisitor::visitColumnVar(), ScalarExprToSql::visitColumnVar(), and anonymous_namespace{JoinFilterPushDown.cpp}::CollectInputColumnsVisitor::visitColumnVar().

{ return table_id; }

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group_predicates()

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

overridevirtual

Reimplemented from Analyzer::Expr.

Definition at line 1463 of file Analyzer.cpp.

References SQLTypeInfo::get_type(), kBOOLEAN, and Analyzer::Expr::type_info.

                                                                               {
  if (type_info.get_type() == kBOOLEAN) {
    scan_predicates.push_back(this);
  }
}

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operator==()

bool Analyzer::ColumnVar::operator== ( const Expr &  rhs ) const

overridevirtual

Implements Analyzer::Expr.

Definition at line 2032 of file Analyzer.cpp.

References get_column_id(), get_rte_idx(), get_table_id(), Analyzer::Var::get_varno(), and Analyzer::Var::get_which_row().

                                                {
  if (typeid(rhs) != typeid(ColumnVar) && typeid(rhs) != typeid(Var)) {
    return false;
  }
  const ColumnVar& rhs_cv = dynamic_cast<const ColumnVar&>(rhs);
  if (rte_idx != -1) {
    return (table_id == rhs_cv.get_table_id()) && (column_id == rhs_cv.get_column_id()) &&
           (rte_idx == rhs_cv.get_rte_idx());
  }
  const Var* v = dynamic_cast<const Var*>(this);
  if (v == nullptr) {
    return false;
  }
  const Var* rv = dynamic_cast<const Var*>(&rhs);
  if (rv == nullptr) {
    return false;
  }
  return (v->get_which_row() == rv->get_which_row()) &&
         (v->get_varno() == rv->get_varno());
}

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rewrite_agg_to_var()

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

overridevirtual

Reimplemented from Analyzer::Expr.

Reimplemented in Analyzer::Var.

Definition at line 1796 of file Analyzer.cpp.

References get_column_id(), get_rte_idx(), get_table_id(), Analyzer::Expr::get_type_info(), and Analyzer::Var::kINPUT_OUTER.

                                                              {
  int varno = 1;
  for (auto tle : tlist) {
    const Expr* e = tle->get_expr();
    if (typeid(*e) != typeid(AggExpr)) {
      const ColumnVar* colvar = dynamic_cast<const ColumnVar*>(e);
      if (colvar == nullptr) {
        throw std::runtime_error(
            "Internal Error: targetlist in rewrite_agg_to_var is not all columns and "
            "aggregates.");
      }
      if (table_id == colvar->get_table_id() && column_id == colvar->get_column_id()) {
        return makeExpr<Var>(colvar->get_type_info(),
                             colvar->get_table_id(),
                             colvar->get_column_id(),
                             colvar->get_rte_idx(),
                             Var::kINPUT_OUTER,
                             varno);
      }
    }
    varno++;
  }
  throw std::runtime_error(
      "Internal error: cannot find ColumnVar from having clause in targetlist.");
}

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rewrite_with_child_targetlist()

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

overridevirtual

Reimplemented from Analyzer::Expr.

Reimplemented in Analyzer::Var.

Definition at line 1772 of file Analyzer.cpp.

References get_column_id(), get_rte_idx(), get_table_id(), Analyzer::Expr::get_type_info(), and Analyzer::Var::kINPUT_OUTER.

                                                              {
  int varno = 1;
  for (auto tle : tlist) {
    const Expr* e = tle->get_expr();
    const ColumnVar* colvar = dynamic_cast<const ColumnVar*>(e);
    if (colvar == nullptr) {
      throw std::runtime_error(
          "Internal Error: targetlist in rewrite_with_child_targetlist is not all "
          "columns.");
    }
    if (table_id == colvar->get_table_id() && column_id == colvar->get_column_id()) {
      return makeExpr<Var>(colvar->get_type_info(),
                           colvar->get_table_id(),
                           colvar->get_column_id(),
                           colvar->get_rte_idx(),
                           Var::kINPUT_OUTER,
                           varno);
    }
    varno++;
  }
  throw std::runtime_error("Internal error: cannot find ColumnVar in child targetlist.");
}

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rewrite_with_targetlist()

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

overridevirtual

Reimplemented from Analyzer::Expr.

Reimplemented in Analyzer::Var.

Definition at line 1758 of file Analyzer.cpp.

References deep_copy(), get_column_id(), and get_table_id().

                                                              {
  for (auto tle : tlist) {
    const Expr* e = tle->get_expr();
    const ColumnVar* colvar = dynamic_cast<const ColumnVar*>(e);
    if (colvar != nullptr) {
      if (table_id == colvar->get_table_id() && column_id == colvar->get_column_id()) {
        return colvar->deep_copy();
      }
    }
  }
  throw std::runtime_error("Internal error: cannot find ColumnVar in targetlist.");
}

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toString()

std::string Analyzer::ColumnVar::toString ( ) const

overridevirtual

Implements Analyzer::Expr.

Reimplemented in Analyzer::Var.

Definition at line 2403 of file Analyzer.cpp.

References Analyzer::Expr::get_type_info(), SQLTypeInfo::get_type_name(), and to_string().

                                    {
  return "(ColumnVar table: " + std::to_string(table_id) +
         " column: " + std::to_string(column_id) + " rte: " + std::to_string(rte_idx) +
         " " + get_type_info().get_type_name() + ") ";
}

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Member Data Documentation

column_id

int Analyzer::ColumnVar::column_id

protected

Definition at line 231 of file Analyzer.h.

rte_idx

int Analyzer::ColumnVar::rte_idx

protected

Definition at line 232 of file Analyzer.h.

table_id

int Analyzer::ColumnVar::table_id

protected

Definition at line 230 of file Analyzer.h.

---

The documentation for this class was generated from the following files:

• /home/jenkins-slave/workspace/core-os-doxygen/Analyzer/Analyzer.h
• /home/jenkins-slave/workspace/core-os-doxygen/Analyzer/Analyzer.cpp