empty query in slow log

[crazycs520]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

set @@tidb_slow_log_threshold=0;

related slow log:

# Time: 2024-05-14T10:46:16.744456542Z
# Txn_start_ts: 449756151429201928
# Query_time: 15.671098186
# Parse_time: 0
# Compile_time: 0.001440327
# Rewrite_time: 0.00028654
# Optimize_time: 0.000975736
# Wait_TS: 0.000020672
# Cop_time: 15.669230206 Process_time: 0.000263148 Wait_time: 0.000087955 Backoff_time: 15.588 Request_count: 2 Total_keys: 36 Get_snapshot_time: 0.000 Rocksdb_key_skipped_count: 32 Rocksdb_block_cache_hit_count: 28
# Index_names: [tidb_background_subtask:idx_exec_id,tidb_global_task:state]
# Is_internal: true
# Digest: 8e00fe5c3677d581b104159ff91d824e3be8160c4e4be058288db681abd1a134
# Stats: tidb_global_task:pseudo[10000;0],tidb_background_subtask:pseudo[10000;0]
# Num_cop_tasks: 2
# Cop_proc_avg: 0.000131574 Cop_proc_p90: 0.000189195 Cop_proc_max: 0.000189195 Cop_proc_addr: 192.168.180.13:23360
# Cop_wait_avg: 4.3977e-05 Cop_wait_p90: 4.5169e-05 Cop_wait_max: 4.5169e-05 Cop_wait_addr: 192.168.180.13:23360
# Cop_backoff_regionMiss_total_times: 35 Cop_backoff_regionMiss_total_time: 14.01 Cop_backoff_regionMiss_max_time: 14.01 Cop_backoff_regionMiss_max_addr: 192.168.180.13:23360 Cop_backoff_regionMiss_avg_time: 14.01 Cop_backoff_regionMiss_p90_time: 14.01
# Cop_backoff_regionScheduling_total_times: 10 Cop_backoff_regionScheduling_total_time: 1.51 Cop_backoff_regionScheduling_max_time: 1.51 Cop_backoff_regionScheduling_max_addr: 192.168.180.13:23360 Cop_backoff_regionScheduling_avg_time: 1.51 Cop_backoff_regionScheduling_p90_time: 1.51
# Cop_backoff_tikvRPC_total_times: 1 Cop_backoff_tikvRPC_total_time: 0.068 Cop_backoff_tikvRPC_max_time: 0.068 Cop_backoff_tikvRPC_max_addr: 192.168.180.13:23360 Cop_backoff_tikvRPC_avg_time: 0.068 Cop_backoff_tikvRPC_p90_time: 0.068
# Mem_max: 17016
# Prepared: false
# Plan_from_cache: false
# Plan_from_binding: false
# Has_more_results: false
# KV_total: 0
# PD_total: 0
# Backoff_total: 0
# Write_sql_response_total: 0
# Result_rows: 0
# Warnings: [{"Level":"Note","Message":"[st,idx_exec_id] remain after pruning paths for st given Prop{SortItems: [], TaskTp: rootTask}","IsExtra":true},{"Level":"Note","Message":"[t,state] remain after pruning paths for t given Prop{SortItems: [], TaskTp: rootTask}","IsExtra":true}]
# Succ: true
# IsExplicitTxn: false
# IsSyncStatsFailed: false
# Plan: tidb_decode_plan('gSawMAkxNF8xMwkwCTEJbXlzcWwudGlkYl9nbG9iYWxfdGFzay5wcmlvcml0eSwgWiEAKGNyZWF0ZV90aW1lYiQAEGlkCTAJASJYOjE1LjdzLCBsb29wczoxCTAgQnl0ZXMRCBgKMQkzXzE1bpAADGlkLCBaigABsAxfa2V5ZiEABHlwZqQADHN0YXRuHgAEZXBiWACGJAEgb25jdXJyZW5jZp0AjkgBJHRhcmdldF9zY28ByRxDb2x1bW4jMyEwSl0BCCwgQxl3WDpPRkYJNC43MSBLQglOL0EKMgk2XzE2JWogZ3JvdXAgYnk6WlgBIXMkZnVuY3M6bWF4KB0lDGJhY2sBPRRuZF9zdWIhfwAuHeoIKS0+FaIALA1BHGZpcnN0cm93LkYAL
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')
# Plan_digest: 19251e4d0852c3daee269dcb983554a856b9ab56b15a27ac9c282faeeb7e2e53
# Binary_plan: tidb_decode_binary_plan('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')
# Resource_group: default
;

2. What did you expect to see? (Required)

3. What did you see instead (Required)

4. What is your TiDB version? (Required)

nightly: 4b91fee

[ekexium]

duplicate of #52743