Captures the following DDL statements that were run on the system.
These DDL statements include the following queries and objects:
CREATE SCHEMA, TABLE, VIEW
DROP SCHEMA, TABLE, VIEW
ALTER SCHEMA, TABLE
See also STL_QUERYTEXT, STL_UTILITYTEXT, and SVL_STATEMENTTEXT. These tables provide a timeline of the SQL commands that are executed on the system; this history is useful for troubleshooting purposes and for creating an audit trail of all system activities.
Use the STARTTIME and ENDTIME columns to find out which statements were logged during a given time period. Long blocks of SQL text are broken into lines 200 characters long; the SEQUENCE column identifies fragments of text that belong to a single statement.
This table is visible to all users. Superusers can see all rows; regular users can see only their own data. For more information, see Visibility of Data in System Tables and Views.
|Column Name||Data Type||Description|
|userid||integer||ID of the user who generated the entry.|
|xid||bigint||Transaction ID associated with the statement.|
|pid||integer||Process ID associated with the statement.|
|label||character(30)||Either the name of the file used to run the query or a label defined with a SET QUERY_GROUP command. If the query is not file-based or the QUERY_GROUP parameter is not set, this field is blank.|
|starttime||timestamp||Time in UTC that the query started executing, with 6 digits of precision for fractional seconds. For example:
|endtime||timestamp||Time in UTC that the query finished executing, with 6 digits of precision for fractional seconds. For example:
|sequence||integer||When a single statement contains more than 200 characters, additional rows are logged for that statement. Sequence 0 is the first row, 1 is the second, and so on.|
|text||character(200)||SQL text, in 200-character increments.|
The following query shows the DDL for four CREATE TABLE statements. The DDL text column is truncated for readability.
select xid, starttime, sequence, substring(text,1,40) as text from stl_ddltext order by xid desc, sequence; xid | starttime | sequence | text ------+----------------------------+----------+------------------------------------------ 1806 | 2013-10-23 00:11:14.709851 | 0 | CREATE TABLE supplier ( s_suppkey int4 N 1806 | 2013-10-23 00:11:14.709851 | 1 | s_comment varchar(101) NOT NULL ) 1805 | 2013-10-23 00:11:14.496153 | 0 | CREATE TABLE region ( r_regionkey int4 N 1804 | 2013-10-23 00:11:14.285986 | 0 | CREATE TABLE partsupp ( ps_partkey int8 1803 | 2013-10-23 00:11:14.056901 | 0 | CREATE TABLE part ( p_partkey int8 NOT N 1803 | 2013-10-23 00:11:14.056901 | 1 | ner char(10) NOT NULL , p_retailprice nu (6 rows)