Sharding Why is the default distributed auto‐augment key strategy provided by ShardingSphere not continuous and most of them end with even numbers? . . 458 8.3.7 Sharding How to allow range query with using decimal(12,2), c_balance decimal(12,2), c_ytd_payment decimal(12,2), c_payment_cnt integer, c_delivery_cnt integer, c_street_1 varchar(20), c_street_2 varchar(20), c_city varchar(20), c_state char(2) not null, ol_o_id integer not null, ol_number integer not null, ol_i_id integer not null, ol_delivery_d timestamp, ol_amount decimal(6,2), ol_supply_w_id integer, ol_quantity integer, ol_dist_info

Sharding Why is the default distributed auto‐augment key strategy provided by ShardingSphere not continuous and most of them end with even numbers? . . 497 8.3.7 Sharding How to allow range query with using decimal(12,2), c_balance decimal(12,2), c_ytd_payment decimal(12,2), c_payment_cnt integer, c_delivery_cnt integer, c_street_1 varchar(20), c_street_2 varchar(20), c_city varchar(20), c_state char(2) not null, ol_o_id integer not null, ol_number integer not null, ol_i_id integer not null, ol_delivery_d timestamp, ol_amount decimal(6,2), ol_supply_w_id integer, ol_quantity integer, ol_dist_info

Sharding Why is the default distributed auto‐augment key strategy provided by ShardingSphere not continuous and most of them end with even numbers? . . 551 13.4.7 Sharding How to allow range query with Test 477 Apache ShardingSphere document c_ytd_payment decimal(12,2), c_payment_cnt integer, c_delivery_cnt integer, c_street_1 varchar(20), c_street_2 varchar(20), c_city varchar(20), c_state char(2) document ol_o_id integer not null, ol_number integer not null, ol_i_id integer not null, ol_delivery_d timestamp, ol_amount decimal(6,2), ol_supply_w_id integer, ol_quantity integer, ol_dist_info

Sharding Why is the default distributed auto‐augment key strategy provided by ShardingSphere not continuous and most of them end with even numbers? . . 579 13.3.7 Sharding How to allow range query with Test 506 Apache ShardingSphere document c_ytd_payment decimal(12,2), c_payment_cnt integer, c_delivery_cnt integer, c_street_1 varchar(20), c_street_2 varchar(20), c_city varchar(20), c_state char(2) document ol_o_id integer not null, ol_number integer not null, ol_i_id integer not null, ol_delivery_d timestamp, ol_amount decimal(6,2), ol_supply_w_id integer, ol_quantity integer, ol_dist_info

URL 参数建议 对 BenchmarkSQL 所使用的配置文件中的 JDBC URL 进行调整，即参数名 conn 的值。增加参数 defaultRowFetchSize=1 可能减少 Delivery 业务耗时。 props.pg 文件节选，建议修改的位置为第 3 行 conn 的参数值： db=postgres driver=org.postgresql.Driver conn= ShardingSphere Proxy server.yaml 参数建议 proxy-backend-query-fetch-size 参数值默认值为 ‐1，修改为 1000 可能减少 Delivery 业务耗时。 server.yaml 文件节选： props: proxy-backend-query-fetch-size: 1000 其他参数如 max-connections-size-per-query decimal(12,2), c_balance decimal(12,2), c_ytd_payment decimal(12,2), c_payment_cnt integer, c_delivery_cnt integer, c_street_1 varchar(20), c_street_2 varchar(20), c_city varchar(20), c_state char(2)

7.12 Why are the default distributed auto‐augment key strategy provided by ShardingSphere not continuous and most of them end with even numbers? . . . . . . . . . . . . . . . . 297 7.13 In Windows environment example: ${begin..end} means range ${[unit1, unit2, unit_x]} means enumeration If there are many continuous ${ expression } or $->{ expression } expressions, according to each sub‐expression result, the v5.0.0-beta When order‐by item and group‐by item are totally consistent, the data obtained is continuous. The data to group are all stored in the data value that data result set cursor currently points

[Sharding] Why are the default distributed auto‐augment key strategy pro‐ vided by ShardingSphere not continuous and most of them end with even num‐ bers? . . . . . . . . . . . . . . . . . . . . . . . . . . example: ${begin..end} means range ${[unit1, unit2, unit_x]} means enumeration If there are many continuous ${ expression } or $->{ expression } expressions, according to each sub‐expression result, the document, v5.0.0 When order‐by item and group‐by item are totally consistent, the data obtained is continuous. The data to group are all stored in the data value that data result set cursor currently points

[Sharding] Why are the default distributed auto‐augment key strategy provided by ShardingSphere not continuous and most of them end with even numbers? . 349 7.8.14 [Sharding] How to allow range query with example: ${begin..end} means range ${[unit1, unit2, unit_x]} means enumeration If there are many continuous ${ expression } or $->{ expression } expressions, according to each sub‐expression result, the document, v5.1.1 When order‐by item and group‐by item are totally consistent, the data obtained is continuous. The data to group are all stored in the data value that data result set cursor currently points

decimal(12,2), c_balance decimal(12,2), c_ytd_payment decimal(12,2), c_payment_cnt integer, c_delivery_cnt integer, 7.7. 测试 293 Apache ShardingSphere document, v5.1.1 c_street_1 varchar(20), c_street_2 integer not null, ol_i_id integer not null, 7.7. 测试 294 Apache ShardingSphere document, v5.1.1 ol_delivery_d timestamp, ol_amount decimal(6,2), ol_supply_w_id integer, ol_quantity integer, ol_dist_info ) stmtOrderStatusSelectOrderLine SELECT ol_i_id, ol_supply_w_id, ol_quantity, ol_amount, ol_delivery_d FROM bmsql_order_line WHERE ol_w_id = ? AND ol_d_id = ? AND ol_o_id = ? ORDER BY ol_w_id, ol_d_id

decimal(12,2), c_balance decimal(12,2), c_ytd_payment decimal(12,2), c_payment_cnt integer, c_delivery_cnt integer, c_street_1 varchar(20), c_street_2 varchar(20), c_city varchar(20), c_state char(2) not null, ol_o_id integer not null, ol_number integer not null, ol_i_id integer not null, ol_delivery_d timestamp, ol_amount decimal(6,2), ol_supply_w_id integer, ol_quantity integer, ol_dist_info ) stmtOrderStatusSelectOrderLine SELECT ol_i_id, ol_supply_w_id, ol_quantity, ol_amount, ol_delivery_d FROM bmsql_order_line WHERE ol_w_id = ? AND ol_d_id = ? AND ol_o_id = ? ORDER BY ol_w_id, ol_d_id