OmniSciDB  c07336695a
RelAlgTranslator.h File Reference
#include "Execute.h"
#include "QueryFeatures.h"
#include "RelAlgAbstractInterpreter.h"
#include <ctime>
#include <memory>
#include <unordered_map>
#include <vector>
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Classes

class  RelAlgTranslator
 
struct  QualsConjunctiveForm
 

Namespaces

 Analyzer
 
 Catalog_Namespace
 

Functions

QualsConjunctiveForm qual_to_conjunctive_form (const std::shared_ptr< Analyzer::Expr > qual_expr)
 
std::vector< std::shared_ptr< Analyzer::Expr > > qual_to_disjunctive_form (const std::shared_ptr< Analyzer::Expr > &qual_expr)
 

Function Documentation

◆ qual_to_conjunctive_form()

QualsConjunctiveForm qual_to_conjunctive_form ( const std::shared_ptr< Analyzer::Expr qual_expr)

Definition at line 1612 of file RelAlgTranslator.cpp.

References CHECK, kAND, qual_to_conjunctive_form(), rewrite_expr(), and QualsConjunctiveForm::simple_quals.

Referenced by anonymous_namespace{IRCodegen.cpp}::add_qualifier_to_execution_unit(), RelAlgExecutor::makeJoinQuals(), qual_to_conjunctive_form(), anonymous_namespace{RelAlgExecutor.cpp}::reverse_logical_distribution(), Executor::skipFragmentInnerJoins(), and anonymous_namespace{RelAlgExecutor.cpp}::translate_quals().

1613  {
1614  CHECK(qual_expr);
1615  auto bin_oper = std::dynamic_pointer_cast<const Analyzer::BinOper>(qual_expr);
1616  if (!bin_oper) {
1617  const auto rewritten_qual_expr = rewrite_expr(qual_expr.get());
1618  return {{}, {rewritten_qual_expr ? rewritten_qual_expr : qual_expr}};
1619  }
1620 
1621  if (bin_oper->get_optype() == kAND) {
1622  const auto lhs_cf = qual_to_conjunctive_form(bin_oper->get_own_left_operand());
1623  const auto rhs_cf = qual_to_conjunctive_form(bin_oper->get_own_right_operand());
1624  auto simple_quals = lhs_cf.simple_quals;
1625  simple_quals.insert(
1626  simple_quals.end(), rhs_cf.simple_quals.begin(), rhs_cf.simple_quals.end());
1627  auto quals = lhs_cf.quals;
1628  quals.insert(quals.end(), rhs_cf.quals.begin(), rhs_cf.quals.end());
1629  return {simple_quals, quals};
1630  }
1631  int rte_idx{0};
1632  const auto simple_qual = bin_oper->normalize_simple_predicate(rte_idx);
1633  return simple_qual ? QualsConjunctiveForm{{simple_qual}, {}}
1634  : QualsConjunctiveForm{{}, {qual_expr}};
1635 }
Analyzer::ExpressionPtr rewrite_expr(const Analyzer::Expr *expr)
QualsConjunctiveForm qual_to_conjunctive_form(const std::shared_ptr< Analyzer::Expr > qual_expr)
Definition: sqldefs.h:37
#define CHECK(condition)
Definition: Logger.h:187
const std::list< std::shared_ptr< Analyzer::Expr > > simple_quals
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◆ qual_to_disjunctive_form()

std::vector<std::shared_ptr<Analyzer::Expr> > qual_to_disjunctive_form ( const std::shared_ptr< Analyzer::Expr > &  qual_expr)

Definition at line 1637 of file RelAlgTranslator.cpp.

References CHECK, kOR, qual_to_disjunctive_form(), and rewrite_expr().

Referenced by qual_to_disjunctive_form(), and anonymous_namespace{RelAlgExecutor.cpp}::reverse_logical_distribution().

1638  {
1639  CHECK(qual_expr);
1640  const auto bin_oper = std::dynamic_pointer_cast<const Analyzer::BinOper>(qual_expr);
1641  if (!bin_oper) {
1642  const auto rewritten_qual_expr = rewrite_expr(qual_expr.get());
1643  return {rewritten_qual_expr ? rewritten_qual_expr : qual_expr};
1644  }
1645  if (bin_oper->get_optype() == kOR) {
1646  const auto lhs_df = qual_to_disjunctive_form(bin_oper->get_own_left_operand());
1647  const auto rhs_df = qual_to_disjunctive_form(bin_oper->get_own_right_operand());
1648  auto quals = lhs_df;
1649  quals.insert(quals.end(), rhs_df.begin(), rhs_df.end());
1650  return quals;
1651  }
1652  return {qual_expr};
1653 }
Definition: sqldefs.h:38
Analyzer::ExpressionPtr rewrite_expr(const Analyzer::Expr *expr)
#define CHECK(condition)
Definition: Logger.h:187
std::vector< std::shared_ptr< Analyzer::Expr > > qual_to_disjunctive_form(const std::shared_ptr< Analyzer::Expr > &qual_expr)
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