Bug Report

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1. Minimal reproduce step (Required)

Benchmark

Env

• TPCH-100
• TiFlash x 3
• TIFLASH REPLICA x 3
• Base branch:
  • TiDB: e1a2b5865
  • TiFash: a69dfbc (master)
    • use exchange data compression FAST mode by default

TPCH Q9:

• release-6.5-20230107-v6.5.0: 18.22s
• master: 21.11s

TPCH Q5:

• release-6.5-20230107-v6.5.0: 6.48s
• master: 7.68s

Try To Fix

revert 7298855
revert 1870004
revert f9167f3

TPCH Q9: 19.90s

remove usage about

632fdaa

TPCH Q9: 18.29s

Process

• Remove usage about SquashingHashJoinBlockTransform in HashJoinProbeBlockInputStream #6714
• Add switch for disabling refined local tunnel #6683