Specialize join matching when values in map are unique

[Dandandan]

Which issue does this PR close?

• Closes #.

Rationale for this change

Performance improvements for this case.

Details

--------------------
Benchmark tpch_mem_sf1.json
--------------------
┏━━━━━━━━━━━━━━┳━━━━━━━━━━┳━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━┓
┃ Query        ┃     main ┃ join_uniqueness ┃        Change ┃
┡━━━━━━━━━━━━━━╇━━━━━━━━━━╇━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━━┩
│ QQuery 1     │  76.36ms │         77.54ms │     no change │
│ QQuery 2     │  13.22ms │         12.55ms │ +1.05x faster │
│ QQuery 3     │  25.00ms │         21.52ms │ +1.16x faster │
│ QQuery 4     │  14.27ms │         12.20ms │ +1.17x faster │
│ QQuery 5     │  37.87ms │         36.25ms │     no change │
│ QQuery 6     │   5.80ms │          5.20ms │ +1.12x faster │
│ QQuery 7     │  74.47ms │         72.09ms │     no change │
│ QQuery 8     │  17.11ms │         17.79ms │     no change │
│ QQuery 9     │  42.82ms │         40.55ms │ +1.06x faster │
│ QQuery 10    │  36.96ms │         38.60ms │     no change │
│ QQuery 11    │   6.74ms │          6.23ms │ +1.08x faster │
│ QQuery 12    │  27.48ms │         27.19ms │     no change │
│ QQuery 13    │  20.02ms │         18.65ms │ +1.07x faster │
│ QQuery 14    │   6.19ms │          5.52ms │ +1.12x faster │
│ QQuery 15    │  13.80ms │         13.39ms │     no change │
│ QQuery 16    │  14.27ms │         13.48ms │ +1.06x faster │
│ QQuery 17    │  57.61ms │         55.87ms │     no change │
│ QQuery 18    │ 144.33ms │        126.34ms │ +1.14x faster │
│ QQuery 19    │  23.26ms │         24.65ms │  1.06x slower │
│ QQuery 20    │  24.67ms │         21.51ms │ +1.15x faster │
│ QQuery 21    │ 101.15ms │         90.91ms │ +1.11x faster │
│ QQuery 22    │  12.86ms │         13.18ms │     no change │
└──────────────┴──────────┴─────────────────┴───────────────┘
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━┓
┃ Benchmark Summary              ┃          ┃
┡━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━┩
│ Total Time (main)              │ 796.25ms │
│ Total Time (join_uniqueness)   │ 751.22ms │
│ Average Time (main)            │  36.19ms │
│ Average Time (join_uniqueness) │  34.15ms │
│ Queries Faster                 │       12 │
│ Queries Slower                 │        1 │
│ Queries with No Change         │        9 │
└────────────────────────────────┴──────────┘
--------------------
Benchmark tpch_mem_sf10.json
--------------------
┏━━━━━━━━━━━━━━┳━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━┓
┃ Query        ┃      main ┃ join_uniqueness ┃        Change ┃
┡━━━━━━━━━━━━━━╇━━━━━━━━━━━╇━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━━┩
│ QQuery 1     │  713.30ms │        742.33ms │     no change │
│ QQuery 2     │  117.97ms │        103.63ms │ +1.14x faster │
│ QQuery 3     │  225.08ms │        233.71ms │     no change │
│ QQuery 4     │  126.43ms │        126.15ms │     no change │
│ QQuery 5     │  490.15ms │        413.30ms │ +1.19x faster │
│ QQuery 6     │   45.84ms │         45.32ms │     no change │
│ QQuery 7     │ 1053.36ms │        969.33ms │ +1.09x faster │
│ QQuery 8     │  325.97ms │        321.67ms │     no change │
│ QQuery 9     │  808.04ms │        788.69ms │     no change │
│ QQuery 10    │  402.56ms │        405.22ms │     no change │
│ QQuery 11    │   92.35ms │         77.74ms │ +1.19x faster │
│ QQuery 12    │  276.90ms │        278.14ms │     no change │
│ QQuery 13    │  307.09ms │        236.15ms │ +1.30x faster │
│ QQuery 14    │   41.72ms │         45.89ms │  1.10x slower │
│ QQuery 15    │  123.96ms │        130.16ms │  1.05x slower │
│ QQuery 16    │   91.25ms │         91.01ms │     no change │
│ QQuery 17    │  880.09ms │        867.14ms │     no change │
│ QQuery 18    │ 3028.76ms │       2450.51ms │ +1.24x faster │
│ QQuery 19    │  173.80ms │        172.74ms │     no change │
│ QQuery 20    │  231.96ms │        207.22ms │ +1.12x faster │
│ QQuery 21    │ 1379.85ms │       1438.61ms │     no change │
│ QQuery 22    │  104.42ms │         95.54ms │ +1.09x faster │
└──────────────┴───────────┴─────────────────┴───────────────┘
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━┓
┃ Benchmark Summary              ┃            ┃
┡━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━┩
│ Total Time (main)              │ 11040.86ms │
│ Total Time (join_uniqueness)   │ 10240.19ms │
│ Average Time (main)            │   501.86ms │
│ Average Time (join_uniqueness) │   465.46ms │
│ Queries Faster                 │          8 │
│ Queries Slower                 │          2 │
│ Queries with No Change         │         12 │
└────────────────────────────────┴────────────┘
--------------------
Benchmark tpch_sf1.json
--------------------
┏━━━━━━━━━━━━━━┳━━━━━━━━━━┳━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━┓
┃ Query        ┃     main ┃ join_uniqueness ┃        Change ┃
┡━━━━━━━━━━━━━━╇━━━━━━━━━━╇━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━━┩
│ QQuery 1     │ 119.77ms │        121.02ms │     no change │
│ QQuery 2     │  47.11ms │         48.15ms │     no change │
│ QQuery 3     │  53.57ms │         55.08ms │     no change │
│ QQuery 4     │  45.38ms │         44.26ms │     no change │
│ QQuery 5     │  78.05ms │         73.26ms │ +1.07x faster │
│ QQuery 6     │  20.90ms │         20.56ms │     no change │
│ QQuery 7     │  98.65ms │         94.39ms │     no change │
│ QQuery 8     │  74.31ms │         73.84ms │     no change │
│ QQuery 9     │ 115.48ms │        110.37ms │     no change │
│ QQuery 10    │ 100.76ms │        102.86ms │     no change │
│ QQuery 11    │  38.01ms │         37.21ms │     no change │
│ QQuery 12    │  53.72ms │         51.41ms │     no change │
│ QQuery 13    │ 130.48ms │        132.69ms │     no change │
│ QQuery 14    │  36.53ms │         36.61ms │     no change │
│ QQuery 15    │  45.10ms │         44.14ms │     no change │
│ QQuery 16    │  29.42ms │         29.11ms │     no change │
│ QQuery 17    │ 102.52ms │        105.23ms │     no change │
│ QQuery 18    │ 156.62ms │        145.41ms │ +1.08x faster │
│ QQuery 19    │  65.29ms │         64.02ms │     no change │
│ QQuery 20    │  61.27ms │         60.25ms │     no change │
│ QQuery 21    │ 118.45ms │        109.26ms │ +1.08x faster │
│ QQuery 22    │  30.35ms │         30.54ms │     no change │
└──────────────┴──────────┴─────────────────┴───────────────┘
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━┓
┃ Benchmark Summary              ┃           ┃
┡━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━┩
│ Total Time (main)              │ 1621.76ms │
│ Total Time (join_uniqueness)   │ 1589.68ms │
│ Average Time (main)            │   73.72ms │
│ Average Time (join_uniqueness) │   72.26ms │
│ Queries Faster                 │         3 │
│ Queries Slower                 │         0 │
│ Queries with No Change         │        19 │
└────────────────────────────────┴───────────┘
--------------------
Benchmark tpch_sf10.json
--------------------
┏━━━━━━━━━━━━━━┳━━━━━━━━━━━┳━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━━┓
┃ Query        ┃      main ┃ join_uniqueness ┃        Change ┃
┡━━━━━━━━━━━━━━╇━━━━━━━━━━━╇━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━━━━┩
│ QQuery 1     │  917.62ms │        922.40ms │     no change │
│ QQuery 2     │  164.94ms │        162.92ms │     no change │
│ QQuery 3     │  444.79ms │        434.07ms │     no change │
│ QQuery 4     │  481.42ms │        472.70ms │     no change │
│ QQuery 5     │  719.77ms │        667.56ms │ +1.08x faster │
│ QQuery 6     │  145.90ms │        143.08ms │     no change │
│ QQuery 7     │  997.14ms │        963.82ms │     no change │
│ QQuery 8     │  696.29ms │        688.56ms │     no change │
│ QQuery 9     │ 1111.77ms │       1127.86ms │     no change │
│ QQuery 10    │  617.77ms │        649.63ms │  1.05x slower │
│ QQuery 11    │  136.72ms │        134.25ms │     no change │
│ QQuery 12    │  318.16ms │        322.52ms │     no change │
│ QQuery 13    │  703.35ms │        711.53ms │     no change │
│ QQuery 14    │  248.90ms │        248.35ms │     no change │
│ QQuery 15    │  389.32ms │        387.55ms │     no change │
│ QQuery 16    │  111.42ms │        107.75ms │     no change │
│ QQuery 17    │ 1170.66ms │       1183.55ms │     no change │
│ QQuery 18    │ 2003.83ms │       1893.24ms │ +1.06x faster │
│ QQuery 19    │  433.70ms │        422.29ms │     no change │
│ QQuery 20    │  403.94ms │        420.45ms │     no change │
│ QQuery 21    │ 1410.99ms │       1374.66ms │     no change │
│ QQuery 22    │  154.81ms │        151.55ms │     no change │
└──────────────┴───────────┴─────────────────┴───────────────┘
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━┓
┃ Benchmark Summary              ┃            ┃
┡━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━╇━━━━━━━━━━━━┩
│ Total Time (main)              │ 13783.20ms │
│ Total Time (join_uniqueness)   │ 13590.27ms │
│ Average Time (main)            │   626.51ms │
│ Average Time (join_uniqueness) │   617.74ms │
│ Queries Faster                 │          2 │
│ Queries Slower                 │          1 │
│ Queries with No Change         │         19 │
└────────────────────────────────┴────────────┘

What changes are included in this PR?

Are these changes tested?

Are there any user-facing changes?

[Dandandan]

This is promising, need to fix the test and make sure the limit is respected.

[ctsk]

Mind if I pick this up? - Nevermind, I just saw your new PR!

[Dandandan]

Yeah, feel free to review my new PR #16153!