StringOpsIR.cpp File Reference

#include "CodeGenerator.h"
#include "Execute.h"
#include "../Shared/sqldefs.h"
#include "Parser/ParserNode.h"
#include <boost/locale/conversion.hpp>

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Namespaces
	anonymous_namespace{StringOpsIR.cpp}

Functions
uint64_t	string_decode (int8_t *chunk_iter_, int64_t pos)
uint64_t	string_decompress (const int32_t string_id, const int64_t string_dict_handle)
int32_t	string_compress (const int64_t ptr_and_len, const int64_t string_dict_handle)
int32_t	lower_encoded (int32_t string_id, int64_t string_dict_proxy_address)
std::vector< int32_t >	anonymous_namespace{StringOpsIR.cpp}::get_compared_ids (const StringDictionaryProxy *dict, const SQLOps compare_operator, const std::string &pattern)

Function Documentation

lower_encoded()

int32_t lower_encoded	(	int32_t	string_id,
		int64_t	string_dict_proxy_address
	)

Definition at line 58 of file StringOpsIR.cpp.

References StringDictionaryProxy::getOrAddTransient(), StringDictionaryProxy::getString(), and to_lower().

                                                                                       {
  StringDictionaryProxy* string_dict_proxy =
      reinterpret_cast<StringDictionaryProxy*>(string_dict_proxy_address);
  auto str = string_dict_proxy->getString(string_id);
  return string_dict_proxy->getOrAddTransient(boost::locale::to_lower(str));
}

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string_compress()

int32_t string_compress	(	const int64_t	ptr_and_len,
		const int64_t	string_dict_handle
	)

Definition at line 49 of file StringOpsIR.cpp.

References extract_str_len_noinline(), extract_str_ptr_noinline(), and StringDictionaryProxy::getIdOfString().

                                                                     {
  std::string raw_str(reinterpret_cast<char*>(extract_str_ptr_noinline(ptr_and_len)),
                      extract_str_len_noinline(ptr_and_len));
  auto string_dict_proxy =
      reinterpret_cast<const StringDictionaryProxy*>(string_dict_handle);
  return string_dict_proxy->getIdOfString(raw_str);
}

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string_decode()

uint64_t string_decode	(	int8_t *	chunk_iter_,
		int64_t	pos
	)

Definition at line 25 of file StringOpsIR.cpp.

References CHECK, ChunkIter_get_nth(), VarlenDatum::is_null, VarlenDatum::length, and VarlenDatum::pointer.

                                                                    {
  auto chunk_iter = reinterpret_cast<ChunkIter*>(chunk_iter_);
  VarlenDatum vd;
  bool is_end;
  ChunkIter_get_nth(chunk_iter, pos, false, &vd, &is_end);
  CHECK(!is_end);
  return vd.is_null ? 0
                    : (reinterpret_cast<uint64_t>(vd.pointer) & 0xffffffffffff) |
                          (static_cast<uint64_t>(vd.length) << 48);
}

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string_decompress()

uint64_t string_decompress	(	const int32_t	string_id,
		const int64_t	string_dict_handle
	)

Definition at line 36 of file StringOpsIR.cpp.

References CHECK, StringDictionaryProxy::getStringBytes(), and NULL_INT.

                                                                        {
  if (string_id == NULL_INT) {
    return 0;
  }
  auto string_dict_proxy =
      reinterpret_cast<const StringDictionaryProxy*>(string_dict_handle);
  auto string_bytes = string_dict_proxy->getStringBytes(string_id);
  CHECK(string_bytes.first);
  return (reinterpret_cast<uint64_t>(string_bytes.first) & 0xffffffffffff) |
         (static_cast<uint64_t>(string_bytes.second) << 48);
}

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