Analyzer::ColumnVar Class Reference

#include <Analyzer.h>

Inheritance diagram for Analyzer::ColumnVar:

Collaboration diagram for Analyzer::ColumnVar:

Public Member Functions
	ColumnVar (const SQLTypeInfo &ti, const shared::ColumnKey &column_key, int32_t rte_idx)
const shared::ColumnKey &	getColumnKey () const
shared::TableKey	getTableKey () const
int32_t	get_rte_idx () const
void	set_rte_idx (int32_t new_rte_idx)
EncodingType	get_compression () 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< int32_t > &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	collect_rte_idx (std::set< int > &rte_idx_set) const
virtual size_t	get_num_column_vars (const bool include_agg) const
virtual void	print () const
virtual void	add_unique (std::list< const Expr * > &expr_list) const
virtual void	find_expr (std::function< bool(const Expr *)> f, 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
shared::ColumnKey	column_key_
int32_t	rte_idx_
Protected Attributes inherited from Analyzer::Expr
SQLTypeInfo	type_info
bool	contains_agg

Detailed Description

Definition at line 194 of file Analyzer.h.

Constructor & Destructor Documentation

Analyzer::ColumnVar::ColumnVar ( const SQLTypeInfo &  ti, const shared::ColumnKey &  column_key, int32_t  rte_idx  )

inline

Definition at line 196 of file Analyzer.h.

      : Expr(ti), column_key_(column_key), rte_idx_(rte_idx) {}

Member Function Documentation

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 1483 of file Analyzer.cpp.

References column_key_.

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

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 222 of file Analyzer.h.

Referenced by anonymous_namespace{GroupByAndAggregate.cpp}::init_count_distinct_descriptors(), and RelAlgTranslator::translateWindowFunction().

                                       {
    colvar_set.insert(this);
  }

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void Analyzer::ColumnVar::collect_rte_idx ( std::set< int32_t > &  rte_idx_set ) const

inlineoverride

Definition at line 212 of file Analyzer.h.

References rte_idx_.

                                                                    {
    rte_idx_set.insert(rte_idx_);
  }

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

inlinestatic

Definition at line 215 of file Analyzer.h.

References CHECK, and column_key_.

Referenced by Analyzer::Expr::get_num_column_vars(), Analyzer::StringOper::hasSingleDictEncodedColInput(), anonymous_namespace{GroupByAndAggregate.cpp}::init_count_distinct_descriptors(), RelAlgTranslator::translateWindowFunction(), and anonymous_namespace{FromTableReordering.cpp}::traverse_join_cost_graph().

                                                                  {
    CHECK(l);
    const auto& l_column_key = l->column_key_;
    CHECK(r);
    const auto& r_column_key = r->column_key_;
    return l_column_key < r_column_key;
  }

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

overridevirtual

Implements Analyzer::Expr.

Reimplemented in Analyzer::Var.

Definition at line 66 of file Analyzer.cpp.

References column_key_, rte_idx_, and Analyzer::Expr::type_info.

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

                                                       {
  return makeExpr<ColumnVar>(type_info, column_key_, rte_idx_);
}

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EncodingType Analyzer::ColumnVar::get_compression ( ) const

inline

Definition at line 204 of file Analyzer.h.

References SQLTypeInfo::get_compression(), and Analyzer::Expr::type_info.

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

{ return type_info.get_compression(); }

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int32_t Analyzer::ColumnVar::get_rte_idx ( ) const

inline

Definition at line 202 of file Analyzer.h.

References rte_idx_.

Referenced by anonymous_namespace{ColumnIR.cpp}::adjusted_range_table_index(), CodeGenerator::codegenColumn(), CodeGenerator::codegenGeoColumnVar(), 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(), self_join_not_covered_by_left_deep_tree(), anonymous_namespace{ScalarCodeGenerator.cpp}::UsedColumnExpressions::visitColumnVar(), MaxRangeTableIndexVisitor::visitColumnVar(), and AllRangeTableIndexVisitor::visitColumnVar().

{ return rte_idx_; }

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const shared::ColumnKey& Analyzer::ColumnVar::getColumnKey ( ) const

inline

Definition at line 198 of file Analyzer.h.

References column_key_.

Referenced by Parser::QuerySpec::analyze_select_clause(), apply_simple_quals(), Executor::canSkipFragmentForFpQual(), CodeGenerator::codegenColVar(), CodeGenerator::codegenGeoColumnVar(), PerfectJoinHashTable::genChunkKey(), Executor::getColumnDescriptor(), getExpressionRange(), getLeafColumnRange(), PlanState::getLocalColumnId(), ColumnFetcher::getOneColumnFragment(), Executor::getPhysicalColumnDescriptor(), anonymous_namespace{ArithmeticIR.cpp}::is_temporary_column(), PlanState::isLazyFetchColumn(), anonymous_namespace{ExecutionKernel.cpp}::need_to_hold_chunk(), operator==(), CodeGenerator::resolveGroupedColumnReference(), rewrite_agg_to_var(), rewrite_with_child_targetlist(), rewrite_with_targetlist(), GroupByAndAggregate::shard_count_for_top_groups(), QueryPlanDagCache::translateColVarsToInfoHash(), 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_key_; }

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shared::TableKey Analyzer::ColumnVar::getTableKey ( ) const

inline

Definition at line 199 of file Analyzer.h.

References column_key_, shared::ColumnKey::db_id, and shared::ColumnKey::table_id.

Referenced by CodeGenerator::codegenRowId(), PerfectJoinHashTable::getInnerQueryInfo(), getLeafColumnRange(), and self_join_not_covered_by_left_deep_tree().

                                     {
    return {column_key_.db_id, column_key_.table_id};
  }

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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 1593 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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bool Analyzer::ColumnVar::operator== ( const Expr &  rhs ) const

overridevirtual

Implements Analyzer::Expr.

Definition at line 2203 of file Analyzer.cpp.

References column_key_, get_rte_idx(), Analyzer::Var::get_varno(), Analyzer::Var::get_which_row(), getColumnKey(), and rte_idx_.

                                                {
  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 (column_key_ == rhs_cv.getColumnKey()) && (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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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 1941 of file Analyzer.cpp.

References column_key_, get_rte_idx(), Analyzer::Expr::get_type_info(), getColumnKey(), 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 (column_key_ == colvar->getColumnKey()) {
        return makeExpr<Var>(colvar->get_type_info(),
                             colvar->getColumnKey(),
                             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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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 1918 of file Analyzer.cpp.

References column_key_, get_rte_idx(), Analyzer::Expr::get_type_info(), getColumnKey(), 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 (column_key_ == colvar->getColumnKey()) {
      return makeExpr<Var>(colvar->get_type_info(),
                           colvar->getColumnKey(),
                           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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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 1904 of file Analyzer.cpp.

References column_key_, deep_copy(), and getColumnKey().

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

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void Analyzer::ColumnVar::set_rte_idx ( int32_t  new_rte_idx )

inline

Definition at line 203 of file Analyzer.h.

References rte_idx_.

{ rte_idx_ = new_rte_idx; }

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

overridevirtual

Implements Analyzer::Expr.

Reimplemented in Analyzer::Var.

Definition at line 2614 of file Analyzer.cpp.

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

Referenced by CodeGenerator::codegenColVar(), CodeGenerator::codegenGeoColumnVar(), and PerfectJoinHashTable::getAlternativeCacheKey().

                                    {
  std::stringstream ss;
  ss << "(ColumnVar " << column_key_ << ", rte: " << std::to_string(rte_idx_) << " "
     << get_type_info().get_type_name() << ") ";
  return ss.str();
}

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Member Data Documentation

shared::ColumnKey Analyzer::ColumnVar::column_key_

protected

Definition at line 239 of file Analyzer.h.

Referenced by check_group_by(), colvar_comp(), deep_copy(), Analyzer::Var::deep_copy(), getColumnKey(), getTableKey(), operator==(), rewrite_agg_to_var(), rewrite_with_child_targetlist(), rewrite_with_targetlist(), toString(), and Analyzer::Var::toString().

int32_t Analyzer::ColumnVar::rte_idx_

protected

Definition at line 240 of file Analyzer.h.

Referenced by collect_rte_idx(), deep_copy(), Analyzer::Var::deep_copy(), get_rte_idx(), operator==(), set_rte_idx(), toString(), and Analyzer::Var::toString().

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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