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Amazon Redshift
Database Developer Guide (API Version 2012-12-01)

ANALYZE Command History

It is useful to know when the last ANALYZE command was run on a table or database. When an ANALYZE command is run, Amazon Redshift executes multiple queries that look like this:

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padb_fetch_sample: select * from table_name

Query STL_ANALYZE to view the history of analyze operations. The following example joins STV_TBL_PERM to show the table name and execution details.

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select distinct a.xid, trim(t.name) as name, a.status, a.rows, a.modified_rows, a.starttime, a.endtime from stl_analyze a join stv_tbl_perm t on t.id=a.table_id where name = 'users' order by starttime; xid | name | status | rows | modified_rows | starttime | endtime -------+-------+-----------------+-------+---------------+---------------------+-------------------- 1582 | users | Full | 49990 | 49990 | 2016-09-22 22:02:23 | 2016-09-22 22:02:28 244287 | users | Full | 24992 | 74988 | 2016-10-04 22:50:58 | 2016-10-04 22:51:01 244712 | users | Full | 49984 | 24992 | 2016-10-04 22:56:07 | 2016-10-04 22:56:07 245071 | users | Skipped | 49984 | 0 | 2016-10-04 22:58:17 | 2016-10-04 22:58:17 245439 | users | Skipped | 49984 | 1982 | 2016-10-04 23:00:13 | 2016-10-04 23:00:13 (5 rows)

Alternatively, you can run a more complex query that returns all the statements that ran in every completed transaction that included an ANALYZE command:

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select xid, to_char(starttime, 'HH24:MM:SS.MS') as starttime, date_diff('sec',starttime,endtime ) as secs, substring(text, 1, 40) from svl_statementtext where sequence = 0 and xid in (select xid from svl_statementtext s where s.text like 'padb_fetch_sample%' ) order by xid desc, starttime; xid | starttime | secs | substring -----+--------------+------+------------------------------------------ 1338 | 12:04:28.511 | 4 | Analyze date 1338 | 12:04:28.511 | 1 | padb_fetch_sample: select count(*) from 1338 | 12:04:29.443 | 2 | padb_fetch_sample: select * from date 1338 | 12:04:31.456 | 1 | padb_fetch_sample: select * from date 1337 | 12:04:24.388 | 1 | padb_fetch_sample: select count(*) from 1337 | 12:04:24.388 | 4 | Analyze sales 1337 | 12:04:25.322 | 2 | padb_fetch_sample: select * from sales 1337 | 12:04:27.363 | 1 | padb_fetch_sample: select * from sales ...