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Analyzer::StringOper Class Reference

Expression class for string functions The "arg" constructor parameter must be an expression that resolves to a string datatype (e.g. TEXT). More...

#include <Analyzer.h>

+ Inheritance diagram for Analyzer::StringOper:
+ Collaboration diagram for Analyzer::StringOper:

Public Types

enum  OperandTypeFamily { OperandTypeFamily::STRING_FAMILY, OperandTypeFamily::INT_FAMILY }
 
using LiteralArgMap = std::map< size_t, std::pair< SQLTypes, Datum >>
 

Public Member Functions

 StringOper (const SqlStringOpKind kind, const std::vector< std::shared_ptr< Analyzer::Expr >> &args)
 
 StringOper (const SqlStringOpKind kind, const SQLTypeInfo &return_ti, const std::vector< std::shared_ptr< Analyzer::Expr >> &args)
 
 StringOper (const SqlStringOpKind kind, const std::vector< std::shared_ptr< Analyzer::Expr >> &args, const size_t min_args, const std::vector< OperandTypeFamily > &expected_type_families, const std::vector< std::string > &arg_names)
 
 StringOper (const SqlStringOpKind kind, const SQLTypeInfo &return_ti, const std::vector< std::shared_ptr< Analyzer::Expr >> &args, const size_t min_args, const std::vector< OperandTypeFamily > &expected_type_families, const std::vector< std::string > &arg_names)
 
 StringOper (const SqlStringOpKind kind, const SQLTypeInfo &return_ti, const std::vector< std::shared_ptr< Analyzer::Expr >> &args, const std::vector< std::shared_ptr< Analyzer::Expr >> &chained_string_op_exprs)
 
 StringOper (const StringOper &other_string_oper)
 
 StringOper (const std::shared_ptr< StringOper > &other_string_oper)
 
SqlStringOpKind get_kind () const
 
size_t getArity () const
 
size_t getLiteralsArity () const
 
size_t getNonLiteralsArity () const
 
const ExprgetArg (const size_t i) const
 
std::shared_ptr< Analyzer::ExprgetOwnArg (const size_t i) const
 
std::vector< std::shared_ptr
< Analyzer::Expr > > 
getOwnArgs () const
 
std::vector< std::shared_ptr
< Analyzer::Expr > > 
getChainedStringOpExprs () const
 
bool requiresPerRowTranslation () const
 
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
 
bool hasNoneEncodedTextArg () const
 
bool hasSingleDictEncodedColInput () const
 returns whether we have one and only one column involved in this StringOper and all its descendents, and that that column is a dictionary-encoded text type More...
 
std::vector< size_t > getLiteralArgIndexes () const
 
LiteralArgMap getLiteralArgs () const
 
std::shared_ptr< Analyzer::Exprrewrite_with_targetlist (const std::vector< std::shared_ptr< TargetEntry >> &tlist) const override
 
std::shared_ptr< Analyzer::Exprrewrite_with_child_targetlist (const std::vector< std::shared_ptr< TargetEntry >> &tlist) const override
 
std::shared_ptr< Analyzer::Exprrewrite_agg_to_var (const std::vector< std::shared_ptr< TargetEntry >> &tlist) const override
 
std::shared_ptr< Analyzer::Exprdeep_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
 
bool operator== (const Expr &rhs) const override
 
std::string toString () const override
 
void find_expr (bool(*f)(const Expr *), std::list< const Expr * > &expr_list) const override
 
virtual size_t getMinArgs () const
 
virtual std::vector
< OperandTypeFamily
getExpectedTypeFamilies () const
 
virtual std::vector< std::string > getArgNames () const
 
- 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::Exprget_shared_ptr ()
 
const SQLTypeInfoget_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 void check_group_by (const std::list< std::shared_ptr< Analyzer::Expr >> &groupby) const
 
virtual std::shared_ptr
< Analyzer::Expr
normalize_simple_predicate (int &rte_idx) 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
 
std::shared_ptr< Analyzer::Exprdecompress ()
 
virtual void get_domain (DomainSet &domain_set) const
 

Private Member Functions

void check_operand_types (const size_t min_args, const std::vector< OperandTypeFamily > &expected_type_families, const std::vector< std::string > &arg_names, const bool dict_encoded_cols_only=false, const bool cols_first_arg_only=true) const
 

Static Private Member Functions

static SQLTypeInfo get_return_type (const SqlStringOpKind kind, const std::vector< std::shared_ptr< Analyzer::Expr >> &args)
 

Private Attributes

SqlStringOpKind kind_
 
std::vector< std::shared_ptr
< Analyzer::Expr > > 
args_
 
std::vector< std::shared_ptr
< Analyzer::Expr > > 
chained_string_op_exprs_
 

Additional Inherited Members

- Protected Attributes inherited from Analyzer::Expr
SQLTypeInfo type_info
 
bool contains_agg
 

Detailed Description

Expression class for string functions The "arg" constructor parameter must be an expression that resolves to a string datatype (e.g. TEXT).

Definition at line 1474 of file Analyzer.h.

Member Typedef Documentation

using Analyzer::StringOper::LiteralArgMap = std::map<size_t, std::pair<SQLTypes, Datum>>

Definition at line 1638 of file Analyzer.h.

Member Enumeration Documentation

Enumerator
STRING_FAMILY 
INT_FAMILY 

Definition at line 1478 of file Analyzer.h.

1478 { STRING_FAMILY, INT_FAMILY };

Constructor & Destructor Documentation

Analyzer::StringOper::StringOper ( const SqlStringOpKind  kind,
const std::vector< std::shared_ptr< Analyzer::Expr >> &  args 
)
inline

Definition at line 1480 of file Analyzer.h.

1482  : Expr(StringOper::get_return_type(kind, args)), kind_(kind), args_(args) {}
Expr(SQLTypes t, bool notnull)
Definition: Analyzer.h:73
static SQLTypeInfo get_return_type(const SqlStringOpKind kind, const std::vector< std::shared_ptr< Analyzer::Expr >> &args)
Definition: Analyzer.cpp:4060
std::vector< std::shared_ptr< Analyzer::Expr > > args_
Definition: Analyzer.h:1689
SqlStringOpKind kind_
Definition: Analyzer.h:1688
Analyzer::StringOper::StringOper ( const SqlStringOpKind  kind,
const SQLTypeInfo return_ti,
const std::vector< std::shared_ptr< Analyzer::Expr >> &  args 
)
inline

Definition at line 1484 of file Analyzer.h.

1487  : Expr(return_ti), kind_(kind), args_(args) {}
Expr(SQLTypes t, bool notnull)
Definition: Analyzer.h:73
std::vector< std::shared_ptr< Analyzer::Expr > > args_
Definition: Analyzer.h:1689
SqlStringOpKind kind_
Definition: Analyzer.h:1688
Analyzer::StringOper::StringOper ( const SqlStringOpKind  kind,
const std::vector< std::shared_ptr< Analyzer::Expr >> &  args,
const size_t  min_args,
const std::vector< OperandTypeFamily > &  expected_type_families,
const std::vector< std::string > &  arg_names 
)
inline

Definition at line 1489 of file Analyzer.h.

References check_operand_types(), CONCAT, and RCONCAT.

1494  : Expr(StringOper::get_return_type(kind, args)), kind_(kind), args_(args) {
1495  check_operand_types(min_args,
1496  expected_type_families,
1497  arg_names,
1498  false /* dict_encoded_cols_only */,
1499  !(kind == SqlStringOpKind::CONCAT ||
1500  kind == SqlStringOpKind::RCONCAT) /* cols_first_arg_only */);
1501  }
Expr(SQLTypes t, bool notnull)
Definition: Analyzer.h:73
void check_operand_types(const size_t min_args, const std::vector< OperandTypeFamily > &expected_type_families, const std::vector< std::string > &arg_names, const bool dict_encoded_cols_only=false, const bool cols_first_arg_only=true) const
Definition: Analyzer.cpp:4096
static SQLTypeInfo get_return_type(const SqlStringOpKind kind, const std::vector< std::shared_ptr< Analyzer::Expr >> &args)
Definition: Analyzer.cpp:4060
std::vector< std::shared_ptr< Analyzer::Expr > > args_
Definition: Analyzer.h:1689
SqlStringOpKind kind_
Definition: Analyzer.h:1688

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Analyzer::StringOper::StringOper ( const SqlStringOpKind  kind,
const SQLTypeInfo return_ti,
const std::vector< std::shared_ptr< Analyzer::Expr >> &  args,
const size_t  min_args,
const std::vector< OperandTypeFamily > &  expected_type_families,
const std::vector< std::string > &  arg_names 
)
inline

Definition at line 1503 of file Analyzer.h.

References check_operand_types(), CONCAT, and RCONCAT.

1509  : Expr(return_ti), kind_(kind), args_(args) {
1510  check_operand_types(min_args,
1511  expected_type_families,
1512  arg_names,
1513  false /* dict_encoded_cols_only */,
1514  !(kind == SqlStringOpKind::CONCAT ||
1515  kind == SqlStringOpKind::RCONCAT) /* cols_first_arg_only */);
1516  }
Expr(SQLTypes t, bool notnull)
Definition: Analyzer.h:73
void check_operand_types(const size_t min_args, const std::vector< OperandTypeFamily > &expected_type_families, const std::vector< std::string > &arg_names, const bool dict_encoded_cols_only=false, const bool cols_first_arg_only=true) const
Definition: Analyzer.cpp:4096
std::vector< std::shared_ptr< Analyzer::Expr > > args_
Definition: Analyzer.h:1689
SqlStringOpKind kind_
Definition: Analyzer.h:1688

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Analyzer::StringOper::StringOper ( const SqlStringOpKind  kind,
const SQLTypeInfo return_ti,
const std::vector< std::shared_ptr< Analyzer::Expr >> &  args,
const std::vector< std::shared_ptr< Analyzer::Expr >> &  chained_string_op_exprs 
)
inline

Definition at line 1518 of file Analyzer.h.

1522  : Expr(return_ti)
1523  , kind_(kind)
1524  , args_(args)
1525  , chained_string_op_exprs_(chained_string_op_exprs) {}
Expr(SQLTypes t, bool notnull)
Definition: Analyzer.h:73
std::vector< std::shared_ptr< Analyzer::Expr > > chained_string_op_exprs_
Definition: Analyzer.h:1690
std::vector< std::shared_ptr< Analyzer::Expr > > args_
Definition: Analyzer.h:1689
SqlStringOpKind kind_
Definition: Analyzer.h:1688
Analyzer::StringOper::StringOper ( const StringOper other_string_oper)
inline

Definition at line 1527 of file Analyzer.h.

References args_, chained_string_op_exprs_, and kind_.

1528  : Expr(other_string_oper.get_type_info()) {
1529  kind_ = other_string_oper.kind_;
1530  args_ = other_string_oper.args_;
1531  chained_string_op_exprs_ = other_string_oper.chained_string_op_exprs_;
1532  }
Expr(SQLTypes t, bool notnull)
Definition: Analyzer.h:73
std::vector< std::shared_ptr< Analyzer::Expr > > chained_string_op_exprs_
Definition: Analyzer.h:1690
std::vector< std::shared_ptr< Analyzer::Expr > > args_
Definition: Analyzer.h:1689
SqlStringOpKind kind_
Definition: Analyzer.h:1688
Analyzer::StringOper::StringOper ( const std::shared_ptr< StringOper > &  other_string_oper)
inline

Definition at line 1534 of file Analyzer.h.

References args_, chained_string_op_exprs_, and kind_.

1535  : Expr(other_string_oper->get_type_info()) {
1536  kind_ = other_string_oper->kind_;
1537  args_ = other_string_oper->args_;
1538  chained_string_op_exprs_ = other_string_oper->chained_string_op_exprs_;
1539  }
Expr(SQLTypes t, bool notnull)
Definition: Analyzer.h:73
std::vector< std::shared_ptr< Analyzer::Expr > > chained_string_op_exprs_
Definition: Analyzer.h:1690
std::vector< std::shared_ptr< Analyzer::Expr > > args_
Definition: Analyzer.h:1689
SqlStringOpKind kind_
Definition: Analyzer.h:1688

Member Function Documentation

void Analyzer::StringOper::check_operand_types ( const size_t  min_args,
const std::vector< OperandTypeFamily > &  expected_type_families,
const std::vector< std::string > &  arg_names,
const bool  dict_encoded_cols_only = false,
const bool  cols_first_arg_only = true 
) const
private

Definition at line 4096 of file Analyzer.cpp.

References args_, CHECK_EQ, g_enable_string_functions, get_kind(), Analyzer::Expr::get_type_info(), INT_FAMILY, IS_INTEGER, remove_cast(), STRING_FAMILY, and toString().

Referenced by StringOper().

4101  {
4102  std::ostringstream oss;
4104  oss << "Function " << ::toString(get_kind()) << " not supported.";
4105  throw std::runtime_error(oss.str());
4106  }
4107  const size_t num_args = args_.size();
4108  CHECK_EQ(expected_type_families.size(), arg_names.size());
4109  if (num_args < min_args || num_args > expected_type_families.size()) {
4110  oss << "Error instantiating " << ::toString(get_kind()) << " operator. ";
4111  oss << "Expected " << expected_type_families.size() << " arguments, but received "
4112  << num_args << ".";
4113  }
4114  for (size_t arg_idx = 0; arg_idx < num_args; ++arg_idx) {
4115  const auto& expected_type_family = expected_type_families[arg_idx];
4116  // We need to remove any casts that Calcite may add to try the right operand type,
4117  // even if we don't support them. Need to check how this works with casts we do
4118  // support.
4119  auto arg_ti = args_[arg_idx]->get_type_info();
4120  const auto decasted_arg = remove_cast(args_[arg_idx]);
4121  const bool is_arg_case =
4122  dynamic_cast<const Analyzer::CaseExpr*>(decasted_arg.get()) != nullptr;
4123  if (is_arg_case) {
4124  oss << "Error instantiating " << ::toString(get_kind()) << " operator. "
4125  << "Currently string operations cannot be run on output of a case "
4126  << "statement.";
4127  throw std::runtime_error(oss.str());
4128  }
4129  const bool is_arg_constant =
4130  dynamic_cast<const Analyzer::Constant*>(decasted_arg.get()) != nullptr;
4131  auto decasted_arg_ti = decasted_arg->get_type_info();
4132  // We need to prevent any non-string type from being casted to a string, but can
4133  // permit non-integer types being casted to integers Todo: Find a cleaner way to
4134  // handle this (we haven't validated any of the casts that calcite has given us at
4135  // the point of RelAlgTranslation)
4136  if (arg_ti != decasted_arg_ti &&
4137  (arg_ti.is_integer() && decasted_arg_ti.is_string())) {
4138  arg_ti = decasted_arg_ti;
4139  }
4140 
4141  if (cols_first_arg_only && !is_arg_constant && arg_idx >= 1UL) {
4142  oss << "Error instantiating " << ::toString(get_kind()) << " operator. "
4143  << "Currently only column inputs are allowed for argument '" << arg_names[0]
4144  << "', but a column input was received for argument '" << arg_names[arg_idx]
4145  << "'.";
4146  throw std::runtime_error(oss.str());
4147  }
4148  switch (expected_type_family) {
4150  if (!arg_ti.is_string()) {
4151  oss << "Error instantiating " << ::toString(get_kind()) << " operator. "
4152  << "Expected text type for argument '" << arg_names[arg_idx] << "'";
4153  throw std::runtime_error(oss.str());
4154  break;
4155  }
4156  if (dict_encoded_cols_only &&
4157  (!is_arg_constant && !arg_ti.is_dict_encoded_string())) {
4158  oss << "Error instantiating " << ::toString(get_kind()) << " operator. "
4159  << "Currently only text-encoded dictionary-encoded column inputs are "
4160  << "allowed, but a none-encoded text column argument was received.";
4161  throw std::runtime_error(oss.str());
4162  break;
4163  }
4164  break;
4165  }
4167  if (!IS_INTEGER(arg_ti.get_type())) {
4168  oss << "Error instantiating " << ::toString(get_kind()) << " operator. "
4169  << "Expected integer type for argument " << arg_idx + 1 << " ('"
4170  << arg_names[arg_idx] << "').";
4171  throw std::runtime_error(oss.str());
4172  break;
4173  }
4174  if (!is_arg_constant) {
4175  oss << "Error instantiating " << ::toString(get_kind()) << " operator. "
4176  << "Currently only text-encoded dictionary column inputs are "
4177  << "allowed, but an integer-type column was provided.";
4178  throw std::runtime_error(oss.str());
4179  break;
4180  }
4181  break;
4182  }
4183  }
4184  }
4185 }
#define CHECK_EQ(x, y)
Definition: Logger.h:230
std::shared_ptr< Analyzer::Expr > remove_cast(const std::shared_ptr< Analyzer::Expr > &expr)
Definition: Analyzer.cpp:4308
bool g_enable_string_functions
const SQLTypeInfo & get_type_info() const
Definition: Analyzer.h:82
std::vector< std::shared_ptr< Analyzer::Expr > > args_
Definition: Analyzer.h:1689
SqlStringOpKind get_kind() const
Definition: Analyzer.h:1541
#define IS_INTEGER(T)
Definition: sqltypes.h:292
std::string toString() const override
Definition: Analyzer.cpp:3670

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

Reimplemented from Analyzer::Expr.

Definition at line 3389 of file Analyzer.cpp.

References args_.

Referenced by hasSingleDictEncodedColInput().

3391  {
3392  for (const auto& arg : args_) {
3393  arg->collect_column_var(colvar_set, include_agg);
3394  }
3395 }
std::vector< std::shared_ptr< Analyzer::Expr > > args_
Definition: Analyzer.h:1689

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

Reimplemented from Analyzer::Expr.

Definition at line 3329 of file Analyzer.cpp.

References args_.

3329  {
3330  for (const auto& arg : args_) {
3331  arg->collect_rte_idx(rte_idx_set);
3332  }
3333 }
std::vector< std::shared_ptr< Analyzer::Expr > > args_
Definition: Analyzer.h:1689
std::shared_ptr< Analyzer::Expr > Analyzer::StringOper::deep_copy ( ) const
overridevirtual

Implements Analyzer::Expr.

Reimplemented in Analyzer::PositionStringOper, Analyzer::TryStringCastOper, Analyzer::Base64DecodeStringOper, Analyzer::Base64EncodeStringOper, Analyzer::JsonValueStringOper, Analyzer::RegexpSubstrStringOper, Analyzer::RegexpReplaceStringOper, Analyzer::SplitPartStringOper, Analyzer::ReplaceStringOper, Analyzer::OverlayStringOper, Analyzer::SubstringStringOper, Analyzer::TrimStringOper, Analyzer::PadStringOper, Analyzer::ConcatStringOper, Analyzer::RepeatStringOper, Analyzer::ReverseStringOper, Analyzer::InitCapStringOper, Analyzer::UpperStringOper, and Analyzer::LowerStringOper.

Definition at line 3498 of file Analyzer.cpp.

References args_, chained_string_op_exprs_, Analyzer::Expr::get_type_info(), and kind_.

Referenced by Analyzer::LowerStringOper::deep_copy(), Analyzer::UpperStringOper::deep_copy(), Analyzer::InitCapStringOper::deep_copy(), Analyzer::ReverseStringOper::deep_copy(), Analyzer::RepeatStringOper::deep_copy(), Analyzer::ConcatStringOper::deep_copy(), Analyzer::PadStringOper::deep_copy(), Analyzer::TrimStringOper::deep_copy(), Analyzer::SubstringStringOper::deep_copy(), Analyzer::OverlayStringOper::deep_copy(), Analyzer::ReplaceStringOper::deep_copy(), Analyzer::SplitPartStringOper::deep_copy(), Analyzer::RegexpReplaceStringOper::deep_copy(), Analyzer::RegexpSubstrStringOper::deep_copy(), Analyzer::JsonValueStringOper::deep_copy(), Analyzer::Base64EncodeStringOper::deep_copy(), Analyzer::Base64DecodeStringOper::deep_copy(), Analyzer::TryStringCastOper::deep_copy(), Analyzer::PositionStringOper::deep_copy(), and DeepCopyVisitor::visitStringOper().

3498  {
3499  std::vector<std::shared_ptr<Analyzer::Expr>> args_copy;
3500  for (const auto& arg : args_) {
3501  args_copy.emplace_back(arg->deep_copy());
3502  }
3503  std::vector<std::shared_ptr<Analyzer::Expr>> chained_string_op_exprs_copy;
3504  for (const auto& chained_string_op_expr : chained_string_op_exprs_) {
3505  chained_string_op_exprs_copy.emplace_back(chained_string_op_expr->deep_copy());
3506  }
3507  return makeExpr<Analyzer::StringOper>(kind_,
3508  get_type_info(),
3509  std::move(args_copy),
3510  std::move(chained_string_op_exprs_copy));
3511 }
std::vector< std::shared_ptr< Analyzer::Expr > > chained_string_op_exprs_
Definition: Analyzer.h:1690
const SQLTypeInfo & get_type_info() const
Definition: Analyzer.h:82
std::vector< std::shared_ptr< Analyzer::Expr > > args_
Definition: Analyzer.h:1689
SqlStringOpKind kind_
Definition: Analyzer.h:1688

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

Reimplemented from Analyzer::Expr.

Definition at line 3164 of file Analyzer.cpp.

References Analyzer::Expr::add_unique(), args_, and anonymous_namespace{Utm.h}::f.

3165  {
3166  if (f(this)) {
3167  add_unique(expr_list);
3168  return;
3169  }
3170  for (const auto& arg : args_) {
3171  arg->find_expr(f, expr_list);
3172  }
3173 }
virtual void add_unique(std::list< const Expr * > &expr_list) const
Definition: Analyzer.cpp:3098
constexpr double f
Definition: Utm.h:31
std::vector< std::shared_ptr< Analyzer::Expr > > args_
Definition: Analyzer.h:1689

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SqlStringOpKind Analyzer::StringOper::get_kind ( ) const
inline

Definition at line 1541 of file Analyzer.h.

References kind_.

Referenced by check_operand_types(), CodeGenerator::codegenPerRowStringOper(), operator==(), TransientStringLiteralsVisitor::visitStringOper(), anonymous_namespace{RelAlgExecutor.cpp}::TextEncodingCastCountVisitor::visitStringOper(), and anonymous_namespace{ExpressionRewrite.cpp}::ConstantFoldingVisitor::visitStringOper().

1541 { return kind_; }
SqlStringOpKind kind_
Definition: Analyzer.h:1688

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SQLTypeInfo Analyzer::StringOper::get_return_type ( const SqlStringOpKind  kind,
const std::vector< std::shared_ptr< Analyzer::Expr >> &  args 
)
staticprivate

Definition at line 4060 of file Analyzer.cpp.

References run_benchmark_import::args, CHECK_NE, kENCODING_DICT, kNULLT, kTEXT, remove_cast(), TRANSIENT_DICT_ID, and TRY_STRING_CAST.

4062  {
4064  << "get_return_type for TRY_STRING_CAST disallowed.";
4065  SQLTypeInfo return_ti(kNULLT);
4066  size_t num_var_string_inputs{0};
4067  for (const auto& arg : args) {
4068  const auto raw_arg = arg.get();
4069  const auto& arg_ti = arg->get_type_info();
4070  if (dynamic_cast<const Analyzer::CaseExpr*>(remove_cast(raw_arg))) {
4071  // Currently we disallow case statement inputs to string functions
4072  // pending a full resolution to QE-359, but the error is thrown
4073  // downstream in StringOper::check_operand_types
4074  return SQLTypeInfo(kTEXT, kENCODING_DICT, 0, kNULLT);
4075  } else if (arg_ti.is_string() && dynamic_cast<const Analyzer::Constant*>(raw_arg)) {
4076  if (return_ti == SQLTypeInfo(kNULLT)) {
4077  return_ti = arg_ti;
4078  }
4079  } else if (arg_ti.is_none_encoded_string()) {
4080  return SQLTypeInfo(kTEXT, kENCODING_DICT, 0, kNULLT);
4081  } else if (arg_ti.is_dict_encoded_string()) {
4082  if (arg_ti.get_comp_param() == TRANSIENT_DICT_ID) {
4083  return SQLTypeInfo(kTEXT, kENCODING_DICT, 0, kNULLT);
4084  } else {
4085  num_var_string_inputs++;
4086  return_ti = arg_ti;
4087  }
4088  }
4089  }
4090  if (num_var_string_inputs > 1UL) {
4091  return SQLTypeInfo(kTEXT, kENCODING_DICT, 0, kNULLT);
4092  }
4093  return return_ti;
4094 }
std::shared_ptr< Analyzer::Expr > remove_cast(const std::shared_ptr< Analyzer::Expr > &expr)
Definition: Analyzer.cpp:4308
#define CHECK_NE(x, y)
Definition: Logger.h:231
Definition: sqltypes.h:67
#define TRANSIENT_DICT_ID
Definition: sqltypes.h:310

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const Expr* Analyzer::StringOper::getArg ( const size_t  i) const
inline

Definition at line 1557 of file Analyzer.h.

References args_, and CHECK_LT.

Referenced by CodeGenerator::codegen(), CodeGenerator::codegenStringFetchAndEncode(), getLiteralArgs(), operator==(), pre_translate_string_ops(), translate_dict_strings(), TransientStringLiteralsVisitor::visitStringOper(), and anonymous_namespace{RelAlgExecutor.cpp}::TextEncodingCastCountVisitor::visitStringOper().

1557  {
1558  CHECK_LT(i, args_.size());
1559  return args_[i].get();
1560  }
std::vector< std::shared_ptr< Analyzer::Expr > > args_
Definition: Analyzer.h:1689
#define CHECK_LT(x, y)
Definition: Logger.h:232

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size_t Analyzer::StringOper::getArity ( ) const
inline

Definition at line 1543 of file Analyzer.h.

References args_.

Referenced by CodeGenerator::codegen(), CodeGenerator::codegenPerRowStringOper(), CodeGenerator::codegenStringFetchAndEncode(), getLiteralArgs(), getNonLiteralsArity(), operator==(), pre_translate_string_ops(), TransientStringLiteralsVisitor::visitStringOper(), anonymous_namespace{RelAlgExecutor.cpp}::TextEncodingCastCountVisitor::visitStringOper(), and anonymous_namespace{ExpressionRewrite.cpp}::ConstantFoldingVisitor::visitStringOper().

1543 { return args_.size(); }
std::vector< std::shared_ptr< Analyzer::Expr > > args_
Definition: Analyzer.h:1689

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std::vector<std::shared_ptr<Analyzer::Expr> > Analyzer::StringOper::getChainedStringOpExprs ( ) const
inline

Definition at line 1569 of file Analyzer.h.

References chained_string_op_exprs_.

Referenced by getExpressionRange(), getStringOpInfos(), and TransientStringLiteralsVisitor::visitStringOper().

1569  {
1570  return chained_string_op_exprs_;
1571  }
std::vector< std::shared_ptr< Analyzer::Expr > > chained_string_op_exprs_
Definition: Analyzer.h:1690

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std::vector< size_t > Analyzer::StringOper::getLiteralArgIndexes ( ) const

Definition at line 4032 of file Analyzer.cpp.

References args_.

4032  {
4033  std::vector<size_t> literal_arg_indexes;
4034  const auto num_args = args_.size();
4035  for (size_t idx = 0; idx < num_args; ++idx) {
4036  if (dynamic_cast<const Constant*>(args_[idx].get())) {
4037  literal_arg_indexes.emplace_back(idx);
4038  }
4039  }
4040  return literal_arg_indexes;
4041 }
std::vector< std::shared_ptr< Analyzer::Expr > > args_
Definition: Analyzer.h:1689
LiteralArgMap Analyzer::StringOper::getLiteralArgs ( ) const

Definition at line 4045 of file Analyzer.cpp.

References getArg(), and getArity().

Referenced by TransientStringLiteralsVisitor::visitStringOper(), and anonymous_namespace{ExpressionRewrite.cpp}::ConstantFoldingVisitor::visitStringOper().

4045  {
4046  LiteralArgMap literal_arg_map;
4047  const auto num_args = getArity();
4048  for (size_t idx = 0; idx < num_args; ++idx) {
4049  const auto constant_arg_expr = dynamic_cast<const Analyzer::Constant*>(getArg(idx));
4050  if (constant_arg_expr) {
4051  literal_arg_map.emplace(
4052  std::make_pair(idx,
4053  std::make_pair(constant_arg_expr->get_type_info().get_type(),
4054  constant_arg_expr->get_constval())));
4055  }
4056  }
4057  return literal_arg_map;
4058 }
std::map< size_t, std::pair< SQLTypes, Datum >> LiteralArgMap
Definition: Analyzer.h:1638
size_t getArity() const
Definition: Analyzer.h:1543
const Expr * getArg(const size_t i) const
Definition: Analyzer.h:1557

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size_t Analyzer::StringOper::getLiteralsArity ( ) const
inline

Definition at line 1545 of file Analyzer.h.

References args_.

Referenced by getNonLiteralsArity(), and TransientStringLiteralsVisitor::visitStringOper().

1545  {
1546  size_t num_literals{0UL};
1547  for (const auto& arg : args_) {
1548  if (dynamic_cast<const Constant*>(arg.get())) {
1549  num_literals++;
1550  }
1551  }
1552  return num_literals;
1553  }
std::vector< std::shared_ptr< Analyzer::Expr > > args_
Definition: Analyzer.h:1689

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size_t Analyzer::StringOper::getNonLiteralsArity ( ) const
inline

Definition at line 1555 of file Analyzer.h.

References getArity(), and getLiteralsArity().

Referenced by CodeGenerator::codegenPerRowStringOper(), TransientStringLiteralsVisitor::visitStringOper(), and anonymous_namespace{ExpressionRewrite.cpp}::ConstantFoldingVisitor::visitStringOper().

1555 { return getArity() - getLiteralsArity(); }
size_t getArity() const
Definition: Analyzer.h:1543
size_t getLiteralsArity() const
Definition: Analyzer.h:1545

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std::shared_ptr<Analyzer::Expr> Analyzer::StringOper::getOwnArg ( const size_t  i) const
inline

Definition at line 1562 of file Analyzer.h.

References args_, and CHECK_LT.

1562  {
1563  CHECK_LT(i, args_.size());
1564  return args_[i];
1565  }
std::vector< std::shared_ptr< Analyzer::Expr > > args_
Definition: Analyzer.h:1689
#define CHECK_LT(x, y)
Definition: Logger.h:232
std::vector<std::shared_ptr<Analyzer::Expr> > Analyzer::StringOper::getOwnArgs ( ) const
inline

Definition at line 1567 of file Analyzer.h.

References args_.

Referenced by ScalarExprVisitor< std::unordered_set< InputColDescriptor > >::visitStringOper(), and anonymous_namespace{ExpressionRewrite.cpp}::ConstantFoldingVisitor::visitStringOper().

1567 { return args_; }
std::vector< std::shared_ptr< Analyzer::Expr > > args_
Definition: Analyzer.h:1689

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void Analyzer::StringOper::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 1710 of file Analyzer.cpp.

References args_.

1712  {
1713  std::set<int> rte_idx_set;
1714  for (const auto& arg : args_) {
1715  arg->collect_rte_idx(rte_idx_set);
1716  }
1717  if (rte_idx_set.size() > 1) {
1718  join_predicates.push_back(this);
1719  } else if (rte_idx_set.size() == 1) {
1720  scan_predicates.push_back(this);
1721  } else {
1722  const_predicates.push_back(this);
1723  }
1724 }
std::vector< std::shared_ptr< Analyzer::Expr > > args_
Definition: Analyzer.h:1689
bool Analyzer::StringOper::hasNoneEncodedTextArg ( ) const
inline

Definition at line 1612 of file Analyzer.h.

References args_, CHECK, and TRANSIENT_DICT_ID.

Referenced by anonymous_namespace{RelAlgExecutor.cpp}::TextEncodingCastCountVisitor::visitStringOper().

1612  {
1613  if (args_.empty()) {
1614  return false;
1615  }
1616  const auto& arg0_ti = args_[0]->get_type_info();
1617  if (!arg0_ti.is_string()) {
1618  return false;
1619  }
1620  if (arg0_ti.is_none_encoded_string()) {
1621  return true;
1622  }
1623  CHECK(arg0_ti.is_dict_encoded_string());
1624  return arg0_ti.get_comp_param() == TRANSIENT_DICT_ID;
1625  }
std::vector< std::shared_ptr< Analyzer::Expr > > args_
Definition: Analyzer.h:1689
#define TRANSIENT_DICT_ID
Definition: sqltypes.h:310
#define CHECK(condition)
Definition: Logger.h:222

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bool Analyzer::StringOper::hasSingleDictEncodedColInput ( ) const

returns whether we have one and only one column involved in this StringOper and all its descendents, and that that column is a dictionary-encoded text type

Returns
std::vector<SqlTypeInfo>

Definition at line 4018 of file Analyzer.cpp.

References CHECK, collect_column_var(), and Analyzer::ColumnVar::colvar_comp().

4018  {
4019  auto comparator = Analyzer::ColumnVar::colvar_comp;
4020  std::set<const Analyzer::ColumnVar*,
4021  bool (*)(const Analyzer::ColumnVar*, const Analyzer::ColumnVar*)>
4022  colvar_set(comparator);
4023  collect_column_var(colvar_set, true);
4024  if (colvar_set.size() != 1UL) {
4025  return false;
4026  }
4027  auto col_expr_ptr = *colvar_set.begin();
4028  CHECK(col_expr_ptr);
4029  return col_expr_ptr->get_type_info().is_dict_encoded_string();
4030 }
static bool colvar_comp(const ColumnVar *l, const ColumnVar *r)
Definition: Analyzer.h:216
void collect_column_var(std::set< const ColumnVar *, bool(*)(const ColumnVar *, const ColumnVar *)> &colvar_set, bool include_agg) const override
Definition: Analyzer.cpp:3389
#define CHECK(condition)
Definition: Logger.h:222

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bool Analyzer::StringOper::operator== ( const Expr rhs) const
overridevirtual

Implements Analyzer::Expr.

Definition at line 3616 of file Analyzer.cpp.

References chained_string_op_exprs_, get_kind(), getArg(), and getArity().

3616  {
3617  const auto rhs_string_oper = dynamic_cast<const StringOper*>(&rhs);
3618 
3619  if (!rhs_string_oper) {
3620  return false;
3621  }
3622 
3623  if (get_kind() != rhs_string_oper->get_kind()) {
3624  return false;
3625  }
3626  if (getArity() != rhs_string_oper->getArity()) {
3627  return false;
3628  }
3629 
3630  for (size_t i = 0; i < getArity(); ++i) {
3631  if (!(*getArg(i) == *(rhs_string_oper->getArg(i)))) {
3632  return false;
3633  }
3634  }
3635  if (chained_string_op_exprs_.size() !=
3636  rhs_string_oper->chained_string_op_exprs_.size()) {
3637  return false;
3638  }
3639  for (size_t i = 0; i < chained_string_op_exprs_.size(); ++i) {
3640  if (!(*(chained_string_op_exprs_[i]) ==
3641  *(rhs_string_oper->chained_string_op_exprs_[i]))) {
3642  return false;
3643  }
3644  }
3645  return true;
3646 }
size_t getArity() const
Definition: Analyzer.h:1543
std::vector< std::shared_ptr< Analyzer::Expr > > chained_string_op_exprs_
Definition: Analyzer.h:1690
StringOper(const SqlStringOpKind kind, const std::vector< std::shared_ptr< Analyzer::Expr >> &args)
Definition: Analyzer.h:1480
SqlStringOpKind get_kind() const
Definition: Analyzer.h:1541
const Expr * getArg(const size_t i) const
Definition: Analyzer.h:1557

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bool Analyzer::StringOper::requiresPerRowTranslation ( ) const
inline

Definition at line 1573 of file Analyzer.h.

References args_, Analyzer::Expr::get_type_info(), and TRANSIENT_DICT_ID.

Referenced by CodeGenerator::codegen(), and getExpressionRange().

1573  {
1574  const auto& return_ti = get_type_info();
1575  if (return_ti.is_none_encoded_string() ||
1576  (return_ti.is_dict_encoded_string() &&
1577  return_ti.get_comp_param() == TRANSIENT_DICT_ID)) {
1578  return true;
1579  }
1580 
1581  // Anything that returns the transient dictionary by definition
1582  // (see StringOper::get_return_type) requires per-row translation,
1583  // but there is also a path with string->numeric functions (the output is
1584  // not a string) where we need to see if any of the inputs are none-encoded
1585  // or transient dictionary encoded, in which case we also need to do per-row
1586  // translation. The handling of that condition follows below.
1587 
1588  size_t num_var_str_args{0};
1589  for (const auto& arg : args_) {
1590  const auto arg_is_const = dynamic_cast<const Analyzer::Constant*>(arg.get());
1591  if (arg_is_const) {
1592  continue;
1593  }
1594  const auto& arg_ti = arg->get_type_info();
1595  if (arg_ti.is_none_encoded_string() ||
1596  (arg_ti.is_dict_encoded_string() &&
1597  arg_ti.get_comp_param() == TRANSIENT_DICT_ID)) {
1598  return true;
1599  }
1600  num_var_str_args++;
1601  }
1602  return num_var_str_args > 1UL;
1603  }
const SQLTypeInfo & get_type_info() const
Definition: Analyzer.h:82
std::vector< std::shared_ptr< Analyzer::Expr > > args_
Definition: Analyzer.h:1689
#define TRANSIENT_DICT_ID
Definition: sqltypes.h:310

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

Reimplemented from Analyzer::Expr.

Definition at line 1985 of file Analyzer.cpp.

References args_, and kind_.

1986  {
1987  std::vector<std::shared_ptr<Analyzer::Expr>> rewritten_args;
1988  for (const auto& arg : args_) {
1989  rewritten_args.emplace_back(arg->rewrite_agg_to_var(tlist));
1990  }
1991  return makeExpr<StringOper>(kind_, rewritten_args);
1992 }
std::vector< std::shared_ptr< Analyzer::Expr > > args_
Definition: Analyzer.h:1689
SqlStringOpKind kind_
Definition: Analyzer.h:1688
std::shared_ptr< Analyzer::Expr > Analyzer::StringOper::rewrite_with_child_targetlist ( const std::vector< std::shared_ptr< TargetEntry >> &  tlist) const
overridevirtual

Reimplemented from Analyzer::Expr.

Definition at line 1976 of file Analyzer.cpp.

References args_, and kind_.

1977  {
1978  std::vector<std::shared_ptr<Analyzer::Expr>> rewritten_args;
1979  for (const auto& arg : args_) {
1980  rewritten_args.emplace_back(arg->rewrite_with_child_targetlist(tlist));
1981  }
1982  return makeExpr<StringOper>(kind_, rewritten_args);
1983 }
std::vector< std::shared_ptr< Analyzer::Expr > > args_
Definition: Analyzer.h:1689
SqlStringOpKind kind_
Definition: Analyzer.h:1688
std::shared_ptr< Analyzer::Expr > Analyzer::StringOper::rewrite_with_targetlist ( const std::vector< std::shared_ptr< TargetEntry >> &  tlist) const
overridevirtual

Reimplemented from Analyzer::Expr.

Definition at line 1967 of file Analyzer.cpp.

References args_, and kind_.

1968  {
1969  std::vector<std::shared_ptr<Analyzer::Expr>> rewritten_args;
1970  for (const auto& arg : args_) {
1971  rewritten_args.emplace_back(arg->rewrite_with_targetlist(tlist));
1972  }
1973  return makeExpr<StringOper>(kind_, rewritten_args);
1974 }
std::vector< std::shared_ptr< Analyzer::Expr > > args_
Definition: Analyzer.h:1689
SqlStringOpKind kind_
Definition: Analyzer.h:1688
std::string Analyzer::StringOper::toString ( ) const
overridevirtual

Implements Analyzer::Expr.

Definition at line 3670 of file Analyzer.cpp.

References args_, and kind_.

Referenced by check_operand_types().

3670  {
3671  std::string str{"(" + ::toString(kind_) + " "};
3672  for (const auto& arg : args_) {
3673  str += arg->toString();
3674  }
3675  str += ")";
3676  return str;
3677 }
std::vector< std::shared_ptr< Analyzer::Expr > > args_
Definition: Analyzer.h:1689
SqlStringOpKind kind_
Definition: Analyzer.h:1688
std::string toString() const override
Definition: Analyzer.cpp:3670

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Member Data Documentation

std::vector<std::shared_ptr<Analyzer::Expr> > Analyzer::StringOper::chained_string_op_exprs_
private

Definition at line 1690 of file Analyzer.h.

Referenced by deep_copy(), getChainedStringOpExprs(), operator==(), and StringOper().

SqlStringOpKind Analyzer::StringOper::kind_
private

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