From c240e330677ca00dc393b12f1b78a7b7d75f6dd8 Mon Sep 17 00:00:00 2001 From: Xiaoyu Wang Date: Wed, 28 Sep 2022 15:28:39 +0800 Subject: [PATCH] docs: improve the system table chapter --- docs/en/12-taos-sql/22-meta.md | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/docs/en/12-taos-sql/22-meta.md b/docs/en/12-taos-sql/22-meta.md index 8635fbc3dc..f9853b1c67 100644 --- a/docs/en/12-taos-sql/22-meta.md +++ b/docs/en/12-taos-sql/22-meta.md @@ -14,7 +14,7 @@ TDengine includes a built-in database named `INFORMATION_SCHEMA` to provide acce :::info - SHOW statements are still supported for the convenience of existing users. -- Some columns in the system table may be keywords, and you need to use the escape character '\`' when querying, for example, the query database test has several VGROUPs: +- Some columns in the system table may be keywords, and you need to use the escape character '\`' when querying, for example, to query the VGROUPS in the database `test`: ```sql select `vgroups` from ins_databases where name = 'test'; ``` @@ -111,9 +111,9 @@ Provides information about user-created databases. Similar to SHOW DATABASES. | 25 | wal_retention_size | INT | Maximum WAL size | | 26 | wal_roll_period | INT | WAL rotation period | | 27 | wal_segment_size | BIGINT | WAL file size | -| 28 | stt_trigger | SMALLINT | The number of files placed on the disk that trigger file merging | -| 29 | table_prefix | SMALLINT | The table name is used for the prefix length that needs to be ignored when calculating the consistent HASH | -| 30 | table_suffix | SMALLINT | The table name is used for the suffix length that needs to be ignored when calculating the consistent HASH | +| 28 | stt_trigger | SMALLINT | The threshold for number of files to trigger file merging | +| 29 | table_prefix | SMALLINT | The prefix length in the table name that is ignored when distributing table to vnode based on table name | +| 30 | table_suffix | SMALLINT | The suffix length in the table name that is ignored when distributing table to vnode based on table name | | 31 | tsdb_pagesize | INT | Page size for vnode data storage engine, in KB | ## INS_FUNCTIONS