feat: introduce vector type

zhongzc commented 2 weeks ago

I hereby agree to the terms of the GreptimeDB CLA.

Refer to a related PR or issue link (optional)

What's changed and what's your intention?

Introduce vector type:

> CREATE TABLE t (ts TIMESTAMP TIME INDEX, v VECTOR(3));

Affected Rows: 0

> INSERT INTO t VALUES
(1, "[1.0, 2.0, 3.0]"),
(2, "[4.0, 5.0, 6.0]"),
(3, "[7.0, 8.0, 9.0]");

Affected Rows: 3

> SELECT * FROM t;

+----------------------------+---------+
| ts                         | v       |
+----------------------------+---------+
| 1970-01-01 00:00:00.001000 | [1,2,3] |
| 1970-01-01 00:00:00.002000 | [4,5,6] |
| 1970-01-01 00:00:00.003000 | [7,8,9] |
+----------------------------+---------+

Checklist

[x] I have written the necessary rustdoc comments.
[x] I have added the necessary unit tests and integration tests.
[x] This PR requires documentation updates.

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codecov[bot] commented 1 week ago

Codecov Report

Attention: Patch coverage is 83.74126% with 93 lines in your changes missing coverage. Please review.

Project coverage is 83.82%. Comparing base (84aa5b7) to head (795c6c5). Report is 1 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #4964 +/- ## ========================================== - Coverage 84.06% 83.82% -0.24% ========================================== Files 1143 1144 +1 Lines 212619 213153 +534 ========================================== - Hits 178743 178681 -62 - Misses 33876 34472 +596 ```

GreptimeTeam / greptimedb