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💬Generate LLM translations (#1976)
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
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```md
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---
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title: system.query_log
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---
@@ -6,15 +7,14 @@ import FunctionDescription from '@site/src/components/FunctionDescription';
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<FunctionDescription description="Introduced or updated: v1.2.696"/>
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一个只读的内存表,存储所有查询日志
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一个只读的内存表,用于存储所有查询日志。有关查询日志中可用的特定字段,请参阅[示例](#examples)部分
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## 设置会话标签
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您可以选择为会话分配一个标签,以便更容易地根据分配的会话标签在日志表中筛选日志。例如,以下代码将标签eric分配给当前会话:
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您可以选择为会话分配一个标签,以便更轻松地根据分配的会话标签过滤日志表中的日志。例如,以下代码将标签 `eric` 分配给当前会话:
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```sql
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set session query_tag='eric';
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```
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然后,我们可以运行一个查询,并使用分配的标签从日志表中检索日志:
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show users;
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select query_tag, query_text from system.query_log where query_tag='eric' limit 1;
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```
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在返回的结果中,您可以找到查询的记录,标记为eric
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在返回的结果中,您可以找到查询的记录,标记为 'eric'
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```sql
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-[ RECORD 1 ]-----------------------------------
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## 示例
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`system.query_log` 表存储已执行查询的详细日志。以下是日志条目的示例:
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```sql
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SELECT * FROM system.query_log LIMIT 1;
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SELECT * FROM system.query_log;
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```
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-[ RECORD 1 ]-----------------------------------
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log_type: 1
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log_type_name: Start
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```sql
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...
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-[ RECORD 10 ]-----------------------------------
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log_type: 2
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log_type_name: Finish
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handler_type: HTTPQuery
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tenant_id: default
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cluster_id: default
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node_id: zv3rra2vO7f9WUgqIu8WH
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node_id: bwElPLZxWt0F8LOFAqsIL2
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sql_user: root
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sql_user_quota: UserQuota<cpu:0,mem:0,store:0>
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sql_user_privileges: GRANT ALL ON *.*, ROLES: ["account_admin"]
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query_tag:
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query_id: 7e03cd7a-36fa-463d-afe4-041da4092c45
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query_id: 1957f343-564e-471f-b036-a10ff853357e
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query_kind: Other
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query_text: SHOW TABLES
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query_hash: 9c36cac1372650b703400c60dd29042c
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query_parameterized_hash: 9c36cac1372650b703400c60dd29042c
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event_date: 2024-07-30
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event_time: 2024-07-30 04:27:29.296596
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query_start_time: 2024-07-30 04:27:29.252170
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query_duration_ms: 0
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query_text: SHOW USERS
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query_hash: 63c65a28ae257d780e93a8a627190775
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query_parameterized_hash: 63c65a28ae257d780e93a8a627190775
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event_date: 2025-04-27
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event_time: 2025-04-27 16:59:31.681036
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query_start_time: 2025-04-27 16:59:31.671825
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query_duration_ms: 9
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query_queued_duration_ms: 0
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current_database: default
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databases:
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group_by_spilled_bytes: 0
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written_io_bytes: 0
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written_io_bytes_cost_ms: 0
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scan_rows: 0
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scan_bytes: 0
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scan_rows: 1
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scan_bytes: 164
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scan_io_bytes: 0
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scan_io_bytes_cost_ms: 0
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scan_partitions: 0
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total_partitions: 0
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result_rows: 0
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result_bytes: 0
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result_rows: 1
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result_bytes: 146
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cpu_usage: 8
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memory_usage: 0
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bytes_from_remote_disk: 0
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bytes_from_local_disk: 0
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bytes_from_memory: 0
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client_info:
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client_address: 192.168.65.1
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user_agent: bendsql/0.19.2-1e338e1
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user_agent: bendsql/0.24.1-f1f7de0
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exception_code: 0
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exception_text:
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stack_trace:
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server_version: v1.2.583-nightly-03c09a571d(rust-1.81.0-nightly-2024-07-25T22:12:15.571684726Z)
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session_settings: acquire_lock_timeout=30, aggregate_spilling_bytes_threshold_per_proc=0, aggregate_spilling_memory_ratio=60, auto_compaction_imperfect_blocks_threshold=25, collation=utf8, compact_max_block_selection=10000, cost_factor_aggregate_per_row=5, cost_factor_hash_table_per_row=10, cost_factor_network_per_row=50, create_query_flight_client_with_current_rt=1, data_retention_time_in_days=1, ddl_column_type_nullable=1, disable_join_reorder=0, disable_merge_into_join_reorder=0, disable_variant_check=0, efficiently_memory_group_by=0, enable_aggregating_index_scan=1, enable_auto_fix_missing_bloom_index=0, enable_bloom_runtime_filter=1, enable_cbo=1, enable_clickhouse_handler=0, enable_compact_after_write=1, enable_distributed_compact=0, enable_distributed_copy_into=1, enable_distributed_merge_into=1, enable_distributed_recluster=0, enable_distributed_replace_into=0, enable_dphyp=1, enable_dst_hour_fix=0, enable_experimental_aggregate_hashtable=1, enable_experimental_merge_into=1, enable_experimental_queries_executor=0, enable_experimental_rbac_check=1, enable_geo_create_table=0, enable_hive_parquet_predict_pushdown=1, enable_loser_tree_merge_sort=0, enable_merge_into_row_fetch=1, enable_new_copy_for_text_formats=1, enable_parquet_page_index=1, enable_parquet_prewhere=0, enable_parquet_rowgroup_pruning=1, enable_query_result_cache=0, enable_refresh_aggregating_index_scan=1, enable_refresh_virtual_column_after_write=1, enable_replace_into_partitioning=1, enable_strict_datetime_parser=1, enable_table_lock=1, enforce_broadcast_join=0, external_server_connect_timeout_secs=10, external_server_request_batch_rows=65536, external_server_request_timeout_secs=180, flight_client_timeout=60, format_null_as_str=1, geometry_output_format=GeoJSON, group_by_shuffle_mode=before_merge, group_by_two_level_threshold=20000, hide_options_in_show_create_table=1, hive_parquet_chunk_size=16384, http_handler_result_timeout_secs=60, idle_transaction_timeout_secs=14400, inlist_to_join_threshold=1024, input_read_buffer_size=4194304, join_spilling_buffer_threshold_per_proc_mb=1024, join_spilling_bytes_threshold_per_proc=0, join_spilling_memory_ratio=60, join_spilling_partition_bits=4, lazy_read_threshold=1000, load_file_metadata_expire_hours=24, max_block_size=65536, max_cte_recursive_depth=1000, max_execute_time_in_seconds=0, max_inlist_to_or=3, max_memory_usage=6577507532, max_result_rows=0, max_set_operator_count=18446744073709551615, max_storage_io_requests=48, max_threads=8, max_vacuum_temp_files_after_query=18446744073709551615, numeric_cast_option=rounding, parquet_fast_read_bytes=16777216, parquet_max_block_size=8192, parse_datetime_ignore_remainder=1, prefer_broadcast_join=1, purge_duplicated_files_in_copy=0, query_flight_compression=LZ4, query_result_cache_allow_inconsistent=0, query_result_cache_max_bytes=1048576, query_result_cache_min_execute_secs=1, query_result_cache_ttl_secs=300, quoted_ident_case_sensitive=1, recluster_block_size=2104802410, recluster_timeout_secs=43200, replace_into_bloom_pruning_max_column_number=4, replace_into_shuffle_strategy=0, sandbox_tenant=, script_max_steps=10000, sort_spilling_batch_bytes=8388608, sort_spilling_bytes_threshold_per_proc=0, sort_spilling_memory_ratio=60, sql_dialect=PostgreSQL, statement_queued_timeout_in_seconds=0, storage_fetch_part_num=2, storage_io_max_page_bytes_for_read=524288, storage_io_min_bytes_for_seek=48, storage_read_buffer_size=1048576, table_lock_expire_secs=20, timezone=UTC, unquoted_ident_case_sensitive=0, use_parquet2=0, scope: SESSION
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server_version: v1.2.731-nightly-eb671da5e5(rust-1.88.0-nightly-2025-04-27T06:06:12.942159732Z)
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query_tag: eric
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session_settings: acquire_lock_timeout=30, aggregate_spilling_memory_ratio=60, auto_compaction_imperfect_blocks_threshold=25, auto_compaction_segments_limit=3, collation=utf8, compact_max_block_selection=10000, copy_dedup_full_path_by_default=0, cost_factor_aggregate_per_row=5, cost_factor_hash_table_per_row=10, cost_factor_network_per_row=50, create_query_flight_client_with_current_rt=1, data_retention_time_in_days=1, ddl_column_type_nullable=1, default_order_by_null=nulls_last, disable_join_reorder=0, disable_variant_check=0, dynamic_sample_time_budget_ms=0, efficiently_memory_group_by=0, enable_aggregating_index_scan=1, enable_analyze_histogram=0, enable_auto_fix_missing_bloom_index=0, enable_auto_vacuum=0, enable_block_stream_write=0, enable_bloom_runtime_filter=1, enable_cbo=1, enable_clickhouse_handler=0, enable_compact_after_multi_table_insert=0, enable_compact_after_write=1, enable_dio=1, enable_distributed_compact=0, enable_distributed_copy_into=1, enable_distributed_merge_into=1, enable_distributed_pruning=1, enable_distributed_recluster=0, enable_distributed_replace_into=0, enable_dphyp=1, enable_dst_hour_fix=0, enable_expand_roles=1, enable_experimental_aggregate_hashtable=1, enable_experimental_merge_into=1, enable_experimental_procedure=0, enable_experimental_queries_executor=0, enable_experimental_rbac_check=1, enable_geo_create_table=0, enable_hive_parquet_predict_pushdown=1, enable_last_snapshot_location_hint=1, enable_loser_tree_merge_sort=1, enable_materialized_cte=1, enable_merge_into_row_fetch=1, enable_new_copy_for_text_formats=1, enable_optimizer_trace=0, enable_parallel_multi_merge_sort=1, enable_parquet_page_index=1, enable_parquet_prewhere=0, enable_parquet_rowgroup_pruning=1, enable_planner_cache=1, enable_prune_cache=1, enable_prune_pipeline=1, enable_query_result_cache=0, enable_refresh_aggregating_index_after_write=1, enable_refresh_virtual_column_after_write=1, enable_replace_into_partitioning=1, enable_strict_datetime_parser=1, enable_table_lock=1, enforce_broadcast_join=0, enforce_shuffle_join=0, error_on_nondeterministic_update=1, external_server_connect_timeout_secs=10, external_server_request_batch_rows=65536, external_server_request_max_threads=256, external_server_request_retry_times=8, external_server_request_timeout_secs=180, flight_client_timeout=60, flight_connection_max_retry_times=0, flight_connection_retry_interval=1, force_aggregate_data_spill=0, force_join_data_spill=0, force_sort_data_spill=0, force_window_data_spill=0, format_null_as_str=1, geometry_output_format=GeoJSON, group_by_shuffle_mode=before_merge, group_by_two_level_threshold=20000, hide_options_in_show_create_table=1, hilbert_clustering_min_bytes=107374182400, hilbert_num_range_ids=1000, hilbert_sample_size_per_block=1000, hive_parquet_chunk_size=16384, http_handler_result_timeout_secs=60, idle_transaction_timeout_secs=14400, inlist_to_join_threshold=1024, input_read_buffer_size=4194304, join_spilling_buffer_threshold_per_proc_mb=512, join_spilling_memory_ratio=60, join_spilling_partition_bits=4, lazy_read_threshold=1000, load_file_metadata_expire_hours=24, max_block_size=65536, max_cte_recursive_depth=1000, max_execute_time_in_seconds=0, max_inlist_to_or=3, max_memory_usage=6574653440, max_push_down_limit=10000, max_query_memory_usage=0, max_result_rows=0, max_set_operator_count=18446744073709551615, max_spill_io_requests=48, max_storage_io_requests=48, max_threads=8, max_vacuum_temp_files_after_query=18446744073709551615, network_policy=, numeric_cast_option=rounding, optimizer_skip_list=, parquet_fast_read_bytes=16777216, parquet_max_block_size=8192, parse_datetime_ignore_remainder=1, persist_materialized_cte=0, prefer_broadcast_join=1, purge_duplicated_files_in_copy=0, query_flight_compression=LZ4, query_out_of_memory_behavior=throw, query_result_cache_allow_inconsistent=0, query_result_cache_max_bytes=1048576, query_result_cache_min_execute_secs=1, query_result_cache_ttl_secs=300, query_tag=eric, quoted_ident_case_sensitive=1, random_function_seed=0, recluster_block_size=1972396032, recluster_timeout_secs=43200, replace_into_bloom_pruning_max_column_number=4, replace_into_shuffle_strategy=0, sandbox_tenant=, script_max_steps=10000, short_sql_max_length=128, sort_spilling_batch_bytes=8388608, sort_spilling_memory_ratio=60, spilling_file_format=parquet, spilling_to_disk_vacuum_unknown_temp_dirs_limit=18446744073709551615, sql_dialect=PostgreSQL, statement_queue_ttl_in_seconds=15, statement_queued_timeout_in_seconds=0, storage_fetch_part_num=2, storage_io_max_page_bytes_for_read=524288, storage_io_min_bytes_for_seek=48, storage_read_buffer_size=1048576, stream_consume_batch_size_hint=0, table_lock_expire_secs=30, timezone=UTC, unquoted_ident_case_sensitive=0, use_parquet2=0, use_vacuum2_to_purge_transient_table_data=0, warehouse=, window_num_partitions=256, window_partition_sort_block_size=65536, window_partition_spilling_memory_ratio=60, window_partition_spilling_to_disk_bytes_limit=0, window_spill_unit_size_mb=256, scope: SESSION
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extra:
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has_profile: false
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```
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has_profile: true
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peek_memory_usage: {"bwElPLZxWt0F8LOFAqsIL2":576850}
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```

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