@@ -8,7 +8,7 @@ import FunctionDescription from '@site/src/components/FunctionDescription';
88
99import EEFeature from '@site/src /components/EEFeature';
1010
11- <EEFeature featureName =' VACUUM TEMPORARY FILES ' />
11+ <EEFeature featureName =' 清理临时文件 ' />
1212
1313删除由 Databend 创建的临时文件,例如溢出文件。
1414
@@ -17,38 +17,77 @@ import EEFeature from '@site/src/components/EEFeature';
1717## 语法
1818
1919``` sql
20- VACUUM TEMPORARY FILES [ RETAIN < n > SECONDS | DAYS ] [ LIMIT < limit > ]
20+ 清理临时文件 [ LIMIT < limit > ]
2121```
2222
23- - ** RETAIN n SECONDS | DAYS ** : 此选项确定临时文件的保留期。当指定此选项时,Databend 将比较 * n * 的值和设置 ` retention_period ` ,并使用较大的值作为保留期。例如,如果指定的 * n * 值大于默认的 ` retention_period ` ,那么 Databend 将保留临时文件 * n * 天,因此超过 * n * 天的临时文件将被删除。
24-
25- - ** LIMIT** : 要删除的临时文件的最大数量。
23+ | 参数 | 描述 |
24+ | --------- | ----------------------------------------------- |
25+ | LIMIT | 要删除的临时文件的最大数量。 |
2626
2727## 输出
2828
29- VACUUM TEMPORARY FILES 返回已删除的临时文件列表 。
29+ 返回已删除的临时文件数量 。
3030
3131## 示例
3232
3333``` sql
34- SELECT
35- *
36- FROM
37- system .temp_files ;
38-
39- ┌───────────────────────────────────────────────────────────────────────────────────────┐
40- │ file_type │ file_name │ file_content_length │ file_last_modified_time │
41- ├───────────┼────────────────────────┼─────────────────────┼────────────────────────────┤
42- │ Spill │ 84H8qt3UKN9Axsj4IzrJw7 │ 784960 │ 2024 - 02 - 26 02 :14 :46 .037784 │
43- │ Spill │ y5W2CGXzYtDeBqZuvW0cW │ 775424 │ 2024 - 02 - 26 02 :14 :46 .037784 │
44- └───────────────────────────────────────────────────────────────────────────────────────┘
34+ SELECT * FROM system .temp_files ;
35+ ```
36+
37+ ┌─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────┐
38+ │ file_type │ file_name │ file_content_length │ file_last_modified_time │
39+ ├───────────┼─────────────────────────────────────────────────────────────┼─────────────────────┼─────────────────────────┤
40+ │ Spill │ 1e9411e1-3c2f-48ee-9712-9d3ce396d1b3/0tUE8EqsxxjO4ftZA8Zni6 │ 591239232 │ 2024-11-19 03:06:03 │
41+ │ Spill │ 1e9411e1-3c2f-48ee-9712-9d3ce396d1b3/440NKJwbRrW8HCFfQuNmb4 │ 607193920 │ 2024-11-19 03:05:18 │
42+ │ Spill │ 1e9411e1-3c2f-48ee-9712-9d3ce396d1b3/5oQxtCB58oRhTA7EgO3027 │ 787631104 │ 2024-11-19 03:04:34 │
43+ │ Spill │ 1e9411e1-3c2f-48ee-9712-9d3ce396d1b3/7nBLkWobl4jaDQtROAIow1 │ 596923264 │ 2024-11-19 03:06:04 │
44+ │ Spill │ 1e9411e1-3c2f-48ee-9712-9d3ce396d1b3/Dx1xSJ5kv5vZyoWdmSpe32 │ 780189824 │ 2024-11-19 03:04:34 │
45+ │ Spill │ 1e9411e1-3c2f-48ee-9712-9d3ce396d1b3/KSHXnVch2KUbHCqE0rgpx7 │ 741196608 │ 2024-11-19 03:05:21 │
46+ │ Spill │ 1e9411e1-3c2f-48ee-9712-9d3ce396d1b3/O3TvRQja41NrpME8qXjJE3 │ 792868608 │ 2024-11-19 03:06:06 │
47+ │ Spill │ 1e9411e1-3c2f-48ee-9712-9d3ce396d1b3/OMXTEzXmvR5Zw3jk2BVlR5 │ 661675392 │ 2024-11-19 03:05:19 │
48+ │ Spill │ 1e9411e1-3c2f-48ee-9712-9d3ce396d1b3/PkSYoCjNxwDqCwP3k0axs1 │ 797124864 │ 2024-11-19 03:04:33 │
49+ │ Spill │ 1e9411e1-3c2f-48ee-9712-9d3ce396d1b3/Sdr4ew2l60k90e7zZs3mF │ 797046144 │ 2024-11-19 03:05:21 │
50+ │ Spill │ 1e9411e1-3c2f-48ee-9712-9d3ce396d1b3/TPMpuE1ypRSwRiSx2bRhh6 │ 531469504 │ 2024-11-19 03:06:03 │
51+ │ Spill │ 1e9411e1-3c2f-48ee-9712-9d3ce396d1b3/VdzW61PcSugFIGyCR4B6P6 │ 736063616 │ 2024-11-19 03:04:34 │
52+ │ Spill │ 1e9411e1-3c2f-48ee-9712-9d3ce396d1b3/WcTI2vVUfyzy8XUyjQAhc2 │ 791146496 │ 2024-11-19 03:04:34 │
53+ │ Spill │ 1e9411e1-3c2f-48ee-9712-9d3ce396d1b3/Y6cCfDUkIkeD7Mnm0Zut67 │ 738694976 │ 2024-11-19 03:06:05 │
54+ │ Spill │ 1e9411e1-3c2f-48ee-9712-9d3ce396d1b3/eNACGmJy00y8Pr1xSPCT25 │ 790728256 │ 2024-11-19 03:05:21 │
55+ │ Spill │ 1e9411e1-3c2f-48ee-9712-9d3ce396d1b3/fojFryduQMoru0kAwnzys5 │ 795929344 │ 2024-11-19 03:05:20 │
56+ │ Spill │ 1e9411e1-3c2f-48ee-9712-9d3ce396d1b3/iWcusSG1zW0pnbo76j0vr7 │ 797382080 │ 2024-11-19 03:06:04 │
57+ │ Spill │ 1e9411e1-3c2f-48ee-9712-9d3ce396d1b3/klWl0CxOZQ08IHymUdeHr │ 796787712 │ 2024-11-19 03:04:34 │
58+ │ Spill │ 1e9411e1-3c2f-48ee-9712-9d3ce396d1b3/kyX7EzdFBOVEBDNwKtexC6 │ 743725184 │ 2024-11-19 03:05:20 │
59+ │ Spill │ 1e9411e1-3c2f-48ee-9712-9d3ce396d1b3/qDOtHrPpdpPPxqqb2Ybht7 │ 794764672 │ 2024-11-19 03:04:34 │
60+ │ Spill │ 1e9411e1-3c2f-48ee-9712-9d3ce396d1b3/qp7GnofqSBZXnJrFuuxqa6 │ 797497664 │ 2024-11-19 03:06:02 │
61+ │ Spill │ 1e9411e1-3c2f-48ee-9712-9d3ce396d1b3/w2qbixYObBOaMlgk7IQms1 │ 716091520 │ 2024-11-19 03:06:05 │
62+ │ Spill │ 1e9411e1-3c2f-48ee-9712-9d3ce396d1b3/xO0ozrAKnq0naJ85BO53I4 │ 779609664 │ 2024-11-19 03:04:34 │
63+ │ Spill │ 1e9411e1-3c2f-48ee-9712-9d3ce396d1b3/xpejvCn9HNGJOc0szcC5b4 │ 793506112 │ 2024-11-19 03:05:21 │
64+ │ Spill │ 71c1bdcd-8ebb-45c1-98af-2700df2f9e10/2Gk62gm2GgFSLjTIGJbWv6 │ 796510336 │ 2024-11-19 03:01:55 │
65+ │ Spill │ 71c1bdcd-8ebb-45c1-98af-2700df2f9e10/2iq9gvwTVgpyp4CSQhimY3 │ 613255680 │ 2024-11-19 03:01:52 │
66+ │ Spill │ 71c1bdcd-8ebb-45c1-98af-2700df2f9e10/6gwj6vG0FDPLbBPIfcBDK │ 750276224 │ 2024-11-19 03:02:36 │
67+ │ Spill │ 71c1bdcd-8ebb-45c1-98af-2700df2f9e10/FXMxh0kA9W6QM5gmJizr92 │ 640907328 │ 2024-11-19 03:02:35 │
68+ │ Spill │ 71c1bdcd-8ebb-45c1-98af-2700df2f9e10/JQgHSgRphfQNtty8iZYGV5 │ 592456704 │ 2024-11-19 03:02:35 │
69+ │ Spill │ 71c1bdcd-8ebb-45c1-98af-2700df2f9e10/KZh2d7Av3UgfFu63dLKyh7 │ 639652608 │ 2024-11-19 03:01:53 │
70+ │ Spill │ 71c1bdcd-8ebb-45c1-98af-2700df2f9e10/L2NiIGBOUUsWHwqhqYVni5 │ 767536768 │ 2024-11-19 03:01:07 │
71+ │ Spill │ 71c1bdcd-8ebb-45c1-98af-2700df2f9e10/MG1fGMXMqlX9x1iQhUHQr4 │ 750610560 │ 2024-11-19 03:01:54 │
72+ │ Spill │ 71c1bdcd-8ebb-45c1-98af-2700df2f9e10/ObfLpkM6boMbeZHvckEGy3 │ 796252032 │ 2024-11-19 03:02:36 │
73+ │ Spill │ 71c1bdcd-8ebb-45c1-98af-2700df2f9e10/QuP4XULWwFtw1eWN9wYPf4 │ 664751936 │ 2024-11-19 03:02:35 │
74+ │ Spill │ 71c1bdcd-8ebb-45c1-98af-2700df2f9e10/Qy1i0PXzXMmJQ5DYWqfhN5 │ 789342016 │ 2024-11-19 03:01:08 │
75+ │ Spill │ 71c1bdcd-8ebb-45c1-98af-2700df2f9e10/UblG5Do43sJ4eRrr7Jh2O5 │ 796920768 │ 2024-11-19 03:01:07 │
76+ │ Spill │ 71c1bdcd-8ebb-45c1-98af-2700df2f9e10/UvmDHe3hIAO1uGubX0O8K3 │ 789434112 │ 2024-11-19 03:01:55 │
77+ │ Spill │ 71c1bdcd-8ebb-45c1-98af-2700df2f9e10/UxEvvrlyQdZws1Ou8Qhy62 │ 595680768 │ 2024-11-19 03:02:34 │
78+ │ Spill │ 71c1bdcd-8ebb-45c1-98af-2700df2f9e10/ZrbdJT9xOcsHjExj6wCum3 │ 796707456 │ 2024-11-19 03:01:53 │
79+ │ Spill │ 71c1bdcd-8ebb-45c1-98af-2700df2f9e10/e2sY1RKXFsHtNFx4PkFxT1 │ 753388160 │ 2024-11-19 03:01:54 │
80+ │ Spill │ 71c1bdcd-8ebb-45c1-98af-2700df2f9e10/fnQanOb1s6OmwJtooi35K5 │ 796730688 │ 2024-11-19 03:01:08 │
81+ │ Spill │ 71c1bdcd-8ebb-45c1-98af-2700df2f9e10/hHSrrfmMjtnPP4gbKBuTc2 │ 764452672 │ 2024-11-19 03:01:07 │
82+ │ Spill │ 71c1bdcd-8ebb-45c1-98af-2700df2f9e10/pZ06OYSniDzOLp8vTtruQ6 │ 796523712 │ 2024-11-19 03:02:37 │
83+ │ Spill │ 71c1bdcd-8ebb-45
4584
85+ ``` sql
4686VACUUM TEMPORARY FILES;
87+ ```
4788
48- ┌────────────────────────┐
49- │ Files │
50- ├────────────────────────┤
51- │ 84H8qt3UKN9Axsj4IzrJw7 │
52- │ y5W2CGXzYtDeBqZuvW0cW │
53- └────────────────────────┘
54- ```
89+ ┌────────┐
90+ │ Files │
91+ ├────────┤
92+ │ 48 │
93+ └────────┘
0 commit comments