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MCOL-641 Refactor initial extent elimination support.

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This commit also adds support in TupleHashJoinStep::forwardCPData,
although we currently do not support wide decimals as join keys.

Row estimation to determine large-side of the join is also updated.
This commit is contained in:
Gagan Goel
2020-07-24 19:04:25 -04:00
committed by Roman Nozdrin
parent ca53b6348a
commit d3bc68b02f
32 changed files with 1221 additions and 386 deletions
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21
utils/common/hasher.h
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@ -30,6 +30,8 @@
#include <stdint.h>
#include <string.h>
using int128_t = __int128;
namespace utils
{
/** @brief class Hasher
@ -346,6 +348,25 @@ public:
}
};
// TODO a copy of these classes also exists in primitiveprocessor.h; consolidate
class Hash128
{
public:
inline size_t operator()(const int128_t i) const
{
return *reinterpret_cast<const uint64_t*>(&i);
}
};
class Equal128
{
public:
inline bool operator()(const int128_t f1, const int128_t f2) const
{
return f1 == f2;
}
};
//------------------------------------------------------------------------------
/** @brief class TupleHasher
*

3
utils/common/widedecimalutils.h
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@ -32,6 +32,9 @@ namespace utils
const uint8_t MAXLENGTH16BYTES = 42;
const uint8_t MAXLENGTH8BYTES = 23;
const int128_t minInt128 = int128_t(0x8000000000000000LL) << 64;
const int128_t maxInt128 = (int128_t(0x7FFFFFFFFFFFFFFFLL) << 64) + 0xFFFFFFFFFFFFFFFFLL;
inline bool isWideDecimalNullValue(const int128_t& val)
{
const uint64_t* ptr = reinterpret_cast<const uint64_t*>(&val);