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tsl-devkit/docs/tsl/syntax/15_ts_sql.md
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csh 3d83740f88 Squashed 'docs/standards/playbook/' changes from c3f8137..25d895d
25d895d 🐛 fix(gitea_workflow): clean up temp repos after job steps
2bc3b11 🐛 fix(gitea_workflow): clean up temporary repo dirs in workflows
98c3f30 📝 docs(agent_rules): allow plan execution on current branch
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8efc4dd 🐛 fix(skills): quote commit-message description
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c8d6bf2 🐛 fix(playbook): use relative paths in CLAUDE.md when not at project root
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git-subtree-dir: docs/standards/playbook
git-subtree-split: 25d895d8b3f56624ccfe99ad7289e9eb49e0f316
2026-05-24 13:04:14 +08:00

4.1 KiB

TS-SQL

文档类型:语法主线 是否可直接用于生成代码:是 是否含已验证可执行示例:是 是否含已验证反例:否 遇到不确定时跳转到:28_ts_sql_core.md29_ts_sql_advanced.md14_resultset_and_filters.md

手册位置:第 15 篇,共 32 篇。上一篇:14_resultset_and_filters.md。下一篇:16_debug_and_profiler.md

这一篇不再只是跳转页。它负责把 TS-SQL 放回整个语言阅读主线里:先知道它是什么、最短骨架怎么写、什么时候继续进入 2829 两篇专题。

这一篇解决什么问题

回答“第一次进入 TS-SQL 时,应该先记住哪些固定骨架,怎样区分基础查询和高级查询,以及哪些内容属于语法、哪些已经属于业务层数据访问”。

必须记住的规则

  • TS-SQL 是 TSL 自带的类 SQL 查询语法,不是金融业务函数库。
  • 基础查询当前的稳定骨架是:以 select / sselect / vselect / mselect 开始,以 end 收尾。
  • 在内存二维结果集上,当前稳定字段访问写法是 ["字段名"]
  • 在一维数组上做 TS-SQL 时,当前应优先使用 ThisRowThisRowIndex
  • select 返回二维结果,sselect 返回一维结果,vselect 返回单值,mselect 返回 Matrix
  • joinThisGroupRefMaxOf / RefMinOf 这类更深查询,已经进入进阶页,不要和入门骨架混写。
  • 访问金融表、时间序列或业务数据源时,语法和业务语义要分开看;本页只讲语言层查询骨架。

已验证语法

最小查询骨架

代码块身份:已验证可执行示例

program test;
begin
    T := array(
        ("A": 1, "B": 3),
        ("A": 2, "B": 1)
    );
    R := select * from T end;
end.

已验证运行结果:

  • R 的长度是 2
  • 两行依次是 (1,3)(2,1)
  • 说明 TS-SQL 的最短可靠入口就是“准备结果集,然后 select ... from T end

四个查询入口怎样分工

代码块身份:已验证可执行示例

program test;
begin
    T := array(
        ("A": 1, "B": 3),
        ("A": 2, "B": 1),
        ("A": 1, "B": 2)
    );
    S := sselect ["A"] from T end;
    V := vselect sumof(["B"]) from T end;
    M := mselect * from T end;
    C := MCols(M, 1);
end.

已验证运行结果:

  • sselect ["A"] from T end 返回一维数组 array(1, 2, 1)
  • vselect sumof(["B"]) from T end 返回单值 6
  • mselect * from T end 的行数是 3、列数是 2
  • MCols(M, 1) 返回列索引 array("A", "B")

什么时候进入进阶页

当查询开始出现多表字段、联接条件或组内子查询时,就不要继续停留在本页:

代码块身份:已验证可执行示例

program test;
begin
    A := array(
        ("ID": 1, "V1": 10),
        ("ID": 2, "V1": 20)
    );
    B := array(
        ("ID": 1, "V2": 100),
        ("ID": 3, "V2": 300)
    );
    R := select [1].["ID"], [1].["V1"], [2].["V2"]
         from A join B on [1].["ID"] = [2].["ID"]
         end;
end.

已验证运行结果:

  • R 的长度是 1
  • 唯一一行是 (1,10,100)
  • 说明一旦开始写 [1].["字段"]joinon 这类结构,就已经进入 29_ts_sql_advanced.md 的责任范围

暂不在本页展开的部分

  • with on
  • insert / update / delete
  • 面向 SQL 表或业务表的数据写回
  • 时间序列查询选项
  • 更深的缓存、对象化接口和写回类

这些内容不是不能写,而是应先去对应专题页或业务文档,不要在这篇入门页提前固化成默认模板。

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