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select key1, key2, key3, value1, value2 [into result.csv] from table where key1 = 1 and key2 = "abc" [and -index = 1] [\\P] [\\G] [using tdr]select * [into result.xml] from table where key1 = 1 and key2 = "abc" [and -index = 1] using tdr [\\P];
参数 | Protobuf | TDR | 必填项 |
table | 表格的名字 | 表格的名字 | 是 |
key | 主键字段名，支持分布式索引查询，可填入部分 key 值 | 主键字段名，必须填入所有 key 值 | 是 |
value | 非主键字段名 | 非主键字段名 | 至少一个或* |
-index | LIST 表：如果指定“-index”会返回相同 key 下的第 index 条记录，如果不指定“-index”，则返回所有记录 GENERIC 表：不支持 | LIST 表：如果指定“-index”会返回相同 key 下的第 index 条记录，如果不指定“-index”， 则返回所有记录 GENERIC 表：不支持 | 否 |
\\P | 打印时延数据 | 打印时延数据 | 否 |
\\G | 竖排打印 | 竖排打印 | 否 |
using tdr | 不支持 | 以 xml 格式输出数据，文件结构必须严格满足 xml 语法，该操作必须在启动 client 时提供 tdr 文件 | 否 |
into | 输出数据到文件 | 输出数据到文件 | 否 |
tcaplus> select * from test_table where gameid=1234 and itemid=12323 and name='testname';+------+------+----------+------+----+-----+|gameid|itemid|name |typeid|Data|uname|+------+------+----------+------+----+-----+|1234 |12323 |"testname"|0 |9 |"ab" |+------+------+----------+------+----+-----+1 records selectd, select time: 9802 ustcaplus> select uname from test_table where gameid=1234 and itemid=12323 and name='testname';+------+------+----------+-----+|gameid|itemid|name |uname|+------+------+----------+-----+|1234 |12323 |"testname"|"ab" |+------+------+----------+-----+1 records selectd, select time: 9457 ustcaplus> select * into test.txt from test_table where gameid=1234 and itemid=12323 and name='testname';1 records are stored to test.csv, select time: 10198 ustcaplus> select * from test_table where gameid=1234 and itemid=12323 and name='testname' \\P \\G;gameid: 1234itemid: 12323name: "testname"typeid: 0Data: 9uname: "ab"API ---- -1us --->ProxyFront---- 10us --->ProxyEnd--- 364us --->SvrMainStart| | | |381us|11380us |4138us |4104us SvrWorkerStart| | | |61usAPI <--- 34197us ----ProxyFront<--- 24us ----ProxyEnd<-- 3298us ----SvrWorkerEnd1 records selectd, select time: 11380 ustcaplus> select * into table_list.xml from table_list where uin=99 and name = "99" and key1=99 using tdr;11 records are stored to table_list.xml, select time: 135299 ustcaplus> select c_string from table_list where uin=99 and name = "99" and key1=99;+---+----+----+--------+|uin|name|key1|c_string|+---+----+----+--------+|99 |"99"|99 |" " |+---+----+----+--------+|99 |"99"|99 |"" |+---+----+----+--------+|99 |"99"|99 |"" |+---+----+----+--------+|99 |"99"|99 |"" |+---+----+----+--------+|99 |"99"|99 |"" |+---+----+----+--------+|99 |"99"|99 |" " |+---+----+----+--------+|99 |"99"|99 |" " |+---+----+----+--------+|99 |"99"|99 |" " |+---+----+----+--------+|99 |"99"|99 |" " |+---+----+----+--------+|99 |"99"|99 |" " |+---+----+----+--------+|99 |"99"|99 |" " |+---+----+----+--------+11 records selectd, select time: 102572 ustcaplus> select c_string from table_list where uin=99 and name = "99" and key1=99 and -index=9;+---+----+----+--------+|uin|name|key1|c_string|+---+----+----+--------+|99 |"99"|99 |" " |+---+----+----+--------+1 records selectd, select time: 9886 us
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