Selecting SQL Statements to Audit v10

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The edb_audit_statement permits inclusion of one or more, comma-separated values to control which SQL statements are to be audited. The following is the general format:

edb_audit_statement = 'value_1[, value_2]...'

The comma-separated values may include or omit space characters following the comma. The values can be specified in any combination of lowercase or uppercase letters.

The basic parameter values are the following:

all – Results in the auditing and logging of every statement including any error messages on statements.
none – Disables all auditing and logging. A value of none overrides any other value included in the list.
ddl – Results in the auditing of all data definition language (DDL) statements (CREATE, ALTER, and DROP) as well as GRANT and REVOKE data control language (DCL) statements.
dml – Results in the auditing of all data manipulation language (DML) statements (INSERT, UPDATE, DELETE, and TRUNCATE).
select – Results in the auditing of SELECT statements.
rollback – Results in the auditing of ROLLBACK statements.
error – Results in the logging of all error messages that occur. Unless the error value is included, no error messages are logged regarding any errors that occur on SQL statements related to any of the other preceding parameter values except when all is used.

Data Definition Language and Data Control Language Statements describes additional parameter values for selecting particular DDL or DCL statements for auditing.

Data Manipulation Language Statements describes additional parameter values for selecting particular DML statements for auditing.

If an unsupported value is included in the edb_audit_statement parameter, then an error occurs when applying the setting to the database server. See the database server log file for the error such as in the following example where create materialized vw results in the error. (The correct value is create materialized view.)

2017-07-16 11:20:39 EDT LOG: invalid value for parameter "edb_audit_statement": "create materialized vw, create sequence, grant" 
2017-07-16 11:20:39 EDT FATAL: configuration file "/opt/edb/as10/data/postgresql.conf" 
contains errors

The following sections describe the values for the SQL language types DDL, DCL, and DML.

Data Definition Language and Data Control Language Statements

This section describes values that can be included in the edb_audit_statement parameter to audit DDL and DCL statements.

The following general rules apply:

If the edb_audit_statement parameter includes either ddl or all, then all DDL statements are audited. In addition, the DCL statements GRANT and REVOKE are audited as well.
If the edb_audit_statement is set to none, then no DDL nor DCL statements are audited.
Specific types of DDL and DCL statements can be chosen for auditing by including a combination of values within the edb_audit_statement parameter.

Use the following syntax to specify an edb_audit_statement parameter value for DDL statements:

{ create | alter | drop } [ <object_type> ]

object_type is any of the following:

ACCESS METHOD
AGGREGATE
CAST
COLLATION
CONVERSION
DATABASE
EVENT TRIGGER
EXTENSION
FOREIGN TABLE
FUNCTION
INDEX
LANGUAGE
LARGE OBJECT
MATERIALIZED VIEW
OPERATOR
OPERATOR CLASS
OPERATOR FAMILY
POLICY
PUBLICATION
ROLE
RULE
SCHEMA
SEQUENCE
SERVER
SUBSCRIPTION
TABLE
TABLESPACE
TEXT SEARCH CONFIGURATION
TEXT SEARCH DICTIONARY
TEXT SEARCH PARSER
TEXT SEARCH TEMPLATE
TRANSFORM
TRIGGER
TYPE
USER MAPPING
VIEW

Descriptions of object types as used in SQL commands can be found in the PostgreSQL core documentation available at:

https://www.postgresql.org/docs/10/static/sql-commands.html

If object_type is omitted from the parameter value, then all of the specified command statements (either create, alter, or drop) are audited.

Use the following syntax to specify an edb_audit_statement parameter value for DCL statements:

{ grant | revoke }

The following are some DDL and DCL examples.

Example 1

The following is an example where edb_audit_connect and edb_audit_statement are set with the following non-default values:

edb_audit_connect = 'all'
edb_audit_statement = 'create, alter, error'

Thus, only SQL statements invoked by the CREATE and ALTER commands are audited. Error messages are also included in the audit log.

The database session that occurs is the following:

$ psql edb enterprisedb
Password for user enterprisedb:
psql.bin (10.0.1)
Type "help" for help.

edb=# SHOW edb_audit_connect;
 edb_audit_connect
-------------------
 all
(1 row)

edb=# SHOW edb_audit_statement;
 edb_audit_statement
----------------------
 create, alter, error
(1 row)

edb=# CREATE ROLE adminuser;
CREATE ROLE
edb=# ALTER ROLE adminuser WITH LOGIN, SUPERUSER, PASSWORD 'password';
ERROR:  syntax error at or near ","
LINE 1: ALTER ROLE adminuser WITH LOGIN, SUPERUSER, PASSWORD 'passwo...
                                    ^
edb=# ALTER ROLE adminuser WITH LOGIN SUPERUSER PASSWORD 'password';
ALTER ROLE
edb=# CREATE DATABASE auditdb;
CREATE DATABASE
edb=# ALTER DATABASE auditdb OWNER TO adminuser;
ALTER DATABASE
edb=# \c auditdb adminuser
Password for user adminuser:
You are now connected to database "auditdb" as user "adminuser".
auditdb=# CREATE SCHEMA edb;
CREATE SCHEMA
auditdb=# SET search_path TO edb;
SET
auditdb=# CREATE TABLE department (
auditdb(#  deptno          NUMBER(2) NOT NULL CONSTRAINT dept_pk PRIMARY KEY,
auditdb(#  dname           VARCHAR2(14) CONSTRAINT dept_dname_uq UNIQUE,
auditdb(#  loc             VARCHAR2(13)
auditdb(# );
CREATE TABLE
auditdb=# DROP TABLE department;
DROP TABLE
auditdb=# CREATE TABLE dept (
auditdb(#  deptno          NUMBER(2) NOT NULL CONSTRAINT dept_pk PRIMARY KEY,
auditdb(#  dname           VARCHAR2(14) CONSTRAINT dept_dname_uq UNIQUE,
auditdb(#  loc             VARCHAR2(13)
auditdb(# );
CREATE TABLE

The resulting audit log file contains the following.

Each audit log entry has been split and displayed across multiple lines, and a blank line has been inserted between the audit log entries for more clarity in the appearance of the results.

2017-07-16 12:59:42.125 EDT,"enterprisedb","edb",3356,"[local]",
596b9b7e.d1c,1,"authentication",2017-07-16 12:59:42 EDT,6/2,0,AUDIT,00000,
"connection authorized: user=enterprisedb database=edb",,,,,,,,,"","",""

2017-07-16 12:59:42.125 EDT,"enterprisedb","edb",3356,"[local]",
596b9b7e.d1c,2,"idle",2017-07-16 12:59:42 EDT,6/6,0,AUDIT,00000,
"statement: CREATE ROLE adminuser;",,,,,,,,,"psql.bin","CREATE ROLE",""

2017-07-16 13:00:28.469 EDT,"enterprisedb","edb",3356,"[local]",
596b9b7e.d1c,3,"idle",2017-07-16 12:59:42 EDT,6/7,0,ERROR,42601,
"syntax error at or near "",""",,,,,,
"ALTER ROLE adminuser WITH LOGIN, SUPERUSER, PASSWORD 'password';",32,,"psql.bin","",""

2017-07-16 13:00:28.469 EDT,"enterprisedb","edb",3356,"[local]",
596b9b7e.d1c,4,"idle",2017-07-16 12:59:42 EDT,6/8,0,AUDIT,00000,
"statement: ALTER ROLE adminuser WITH LOGIN SUPERUSER PASSWORD 'password';",,,,,,,,,
"psql.bin","ALTER ROLE",""

2017-07-16 13:00:28.469 EDT,"enterprisedb","edb",3356,"[local]",
596b9b7e.d1c,5,"idle",2017-07-16 12:59:42 EDT,6/9,0,AUDIT,00000,
"statement: CREATE DATABASE auditdb;",,,,,,,,,"psql.bin","CREATE DATABASE",""

2017-07-16 13:00:28.469 EDT,"enterprisedb","edb",3356,"[local]",
596b9b7e.d1c,6,"idle",2017-07-16 12:59:42 EDT,6/10,0,AUDIT,00000,
"statement: ALTER DATABASE auditdb OWNER TO adminuser;",,,,,,,,,"psql.bin","ALTER DATABASE",""

2017-07-16 13:01:13.735 EDT,"adminuser","auditdb",3377,"[local]",
596b9bd9.d31,1,"authentication",2017-07-16 13:01:13 EDT,4/15,0,AUDIT,00000,
"connection authorized: user=adminuser database=auditdb",,,,,,,,,"","",""

2017-07-16 13:01:13.735 EDT,"adminuser","auditdb",3377,"[local]",
596b9bd9.d31,2,"idle",2017-07-16 13:01:13 EDT,4/17,0,AUDIT,00000,
"statement: CREATE SCHEMA edb;",,,,,,,,,"psql.bin","CREATE SCHEMA",""

2017-07-16 13:01:13.735 EDT,"adminuser","auditdb",3377,"[local]",
596b9bd9.d31,3,"idle",2017-07-16 13:01:13 EDT,4/19,0,AUDIT,00000,
"statement: CREATE TABLE department (
 deptno            NUMBER(2) NOT NULL CONSTRAINT dept_pk PRIMARY KEY,
 dname             VARCHAR2(14) CONSTRAINT dept_dname_uq UNIQUE,
 loc               VARCHAR2(13)
);",,,,,,,,,"psql.bin","CREATE TABLE",""

2017-07-16 13:01:13.735 EDT,"adminuser","auditdb",3377,"[local]",
596b9bd9.d31,4,"idle",2017-07-16 13:01:13 EDT,4/21,0,AUDIT,00000,
"statement: CREATE TABLE dept (
 deptno            NUMBER(2) NOT NULL CONSTRAINT dept_pk PRIMARY KEY,
 dname             VARCHAR2(14) CONSTRAINT dept_dname_uq UNIQUE,
 loc               VARCHAR2(13)
);",,,,,,,,,"psql.bin","CREATE TABLE",""

The CREATE and ALTER statements for the adminuser role and auditdb database are audited. The error for the ALTER ROLE adminuser statement is also logged since error is included in the edb_audit_statement parameter.

Similarly, the CREATE statements for schema edb and tables department and dept are audited.

Note that the DROP TABLE department statement is not in the audit log since there is no edb_audit_statement setting that would result in the auditing of successfully processed DROP statements such as ddl, all, or drop.

Example 2

The following is an example where edb_audit_connect and edb_audit_statement are set with the following non-default values:

edb_audit_connect = 'all'
edb_audit_statement = 'create view,create materialized view,create sequence,grant'

Thus, only SQL statements invoked by the CREATE VIEW, CREATE MATERIALIZED VIEW, CREATE SEQUENCE and GRANT commands are audited.

The database session that occurs is the following:

$ psql auditdb adminuser
Password for user adminuser:
psql.bin (10.0.1)
Type "help" for help.

auditdb=# SHOW edb_audit_connect;
 edb_audit_connect
-------------------
 all
(1 row)

auditdb=# SHOW edb_audit_statement;
                 edb_audit_statement
------------------------------------------------------------
 create view,create materialized view,create sequence,grant
(1 row)

auditdb=# SET search_path TO edb;
SET
auditdb=# CREATE TABLE emp (
auditdb(#   empno           NUMBER(4) NOT NULL CONSTRAINT emp_pk PRIMARY KEY,
auditdb(#   ename           VARCHAR2(10),
auditdb(#   job             VARCHAR2(9),
auditdb(#   mgr             NUMBER(4),
auditdb(#   hiredate        DATE,
auditdb(#   sal             NUMBER(7,2) CONSTRAINT emp_sal_ck CHECK (sal > 0),
auditdb(#   comm            NUMBER(7,2),
auditdb(#   deptno          NUMBER(2) CONSTRAINT emp_ref_dept_fk
auditdb(#                       REFERENCES dept(deptno)
auditdb(# );
CREATE TABLE
auditdb=# CREATE VIEW salesemp AS
auditdb-#     SELECT empno, ename, hiredate, sal, comm FROM emp WHERE job =
'SALESMAN';
CREATE VIEW
auditdb=# CREATE MATERIALIZED VIEW managers AS
auditdb-#     SELECT empno, ename, hiredate, sal, comm FROM emp WHERE job =
'MANAGER';
SELECT 0
auditdb=# CREATE SEQUENCE next_empno START WITH 8000 INCREMENT BY 1;
CREATE SEQUENCE
auditdb=# GRANT ALL ON dept TO PUBLIC;
GRANT
auditdb=# GRANT ALL ON emp TO PUBLIC;
GRANT

The resulting audit log file contains the following.

Each audit log entry has been split and displayed across multiple lines, and a blank line has been inserted between the audit log entries for more clarity in the appearance of the results.

2017-07-16 13:20:09.836 EDT,"adminuser","auditdb",4143,"[local]",
596ba049.102f,1,"authentication",2017-07-16 13:20:09 EDT,4/10,0,AUDIT,00000,
"connection authorized: user=adminuser database=auditdb",,,,,,,,,"","",""

2017-07-16 13:20:09.836 EDT,"adminuser","auditdb",4143,"[local]",
596ba049.102f,2,"idle",2017-07-16 13:20:09 EDT,4/16,0,AUDIT,00000,
"statement: CREATE VIEW salesemp AS
   SELECT empno, ename, hiredate, sal, comm FROM emp WHERE job =
'SALESMAN';",,,,,,,,,"psql.bin","CREATE VIEW",""

2017-07-16 13:20:09.836 EDT,"adminuser","auditdb",4143,"[local]",
596ba049.102f,3,"idle",2017-07-16 13:20:09 EDT,4/17,0,AUDIT,00000,
"statement: CREATE MATERIALIZED VIEW managers AS
   SELECT empno, ename, hiredate, sal, comm FROM emp WHERE job =
'MANAGER';",,,,,,,,,"psql.bin","CREATE MATERIALIZED VIEW",""

2017-07-16 13:20:09.836 EDT,"adminuser","auditdb",4143,"[local]",
596ba049.102f,4,"idle",2017-07-16 13:20:09 EDT,4/18,0,AUDIT,00000,
"statement: CREATE SEQUENCE next_empno START WITH 8000 INCREMENT BY
1;",,,,,,,,,"psql.bin","CREATE SEQUENCE",""

2017-07-16 13:20:09.836 EDT,"adminuser","auditdb",4143,"[local]",
596ba049.102f,5,"idle",2017-07-16 13:20:09 EDT,4/19,0,AUDIT,00000,
"statement: GRANT ALL ON dept TO PUBLIC;",,,,,,,,,"psql.bin","GRANT",""

2017-07-16 13:20:09.836 EDT,"adminuser","auditdb",4143,"[local]",
596ba049.102f,6,"idle",2017-07-16 13:20:09 EDT,4/20,0,AUDIT,00000,
"statement: GRANT ALL ON emp TO PUBLIC;",,,,,,,,,"psql.bin","GRANT",""

The CREATE VIEW and CREATE MATERIALIZED VIEW statements are audited. Note that the prior CREATE TABLE emp statement is not audited since none of the values create, create table, ddl, nor all are included in the edb_audit_statement parameter.

The CREATE SEQUENCE and GRANT statements are audited since those values are included in the edb_audit_statement parameter.

Example 3

The following is an example where edb_audit_connect and edb_audit_statement are set with the following non-default values:

logging_collector = 'on'
edb_audit_connect = 'all'
edb_audit_statement = 'none'

The session for users who connect as ADMIN or SYSDBA can be fully audited. An admin user is connected to a database auditdb as ADMINUSER, the following ALTER USER command specifies that ADMINUSER is to be audited.

ALTER USER adminuser SET edb_audit_statement = "all";

Setting the edb_audit_statement parameter to all allows auditing all of the SQL statements for an admin user.

The database session that occurs is the following:

$ psql auditdb adminuser
Password for user adminuser:
psql.bin (10.0.1)
Type "help" for help.

auditdb=# SHOW edb_audit_connect;
 edb_audit_connect
-------------------
 all
(1 row)

auditdb=# SHOW edb_audit_statement;
 edb_audit_statement 
---------------------
 all
(1 row)

auditdb=# SET search_path TO edb;
SET
auditdb=> CREATE TABLE dept
auditdb->        (deptno NUMBER(2),
auditdb(>         dname VARCHAR2(14),
auditdb(>         loc VARCHAR2(13) );
CREATE TABLE
auditdb=> INSERT INTO dept VALUES (10, 'ACCOUNTING', 'NEW YORK');
INSERT 0 1
auditdb=> INSERT INTO dept VALUES (20, 'RESEARCH', 'DALLAS');
INSERT 0 1
auditdb=> INSERT INTO dept VALUES (30, 'SALES', 'CHICAGO');
INSERT 0 1
auditdb=>  UPDATE dept SET loc = 'BEDFORD' WHERE deptno = 20;
UPDATE 1
auditdb=> SELECT * FROM dept;
 deptno |   dname    |   loc    
--------+------------+----------
     10 | ACCOUNTING | NEW YORK
     30 | SALES      | CHICAGO
     20 | RESEARCH   | BEDFORD
(3 rows)

auditdb=> DELETE FROM emp WHERE deptno = 40;
ERROR:  relation "emp" does not exist
LINE 1: DELETE FROM emp WHERE deptno = 40;
                    ^
auditdb=> DELETE FROM dept WHERE deptno = 10;
DELETE 1
auditdb=> SELECT * FROM dept;
 deptno |  dname   |   loc   
--------+----------+---------
     30 | SALES    | CHICAGO
     20 | RESEARCH | BEDFORD
(2 rows)

The resulting audit log file contains the following.

Each audit log entry has been split and displayed across multiple lines, and a blank line has been inserted between the audit log entries for more clarity in the appearance of the results.

2021-06-23 06:06:59.027 IST,"adminuser","auditdb",60218,"[local]",60d3083b.
eb3a,1,"authentication",2021-06-23 06:06:59 IST,4/19,0,AUDIT,00000,"connection authorized: 
user=adminuser database=auditdb",,,,,,,,,"","client backend",,"","","connect"

2021-06-23 06:07:33.192 IST,"adminuser","auditdb",66316,"[local]",60daab0c.
1030c,2,"idle",2021-06-23 06:07:33 IST,4/16,0,AUDIT,00000,"statement: SHOW edb_audit_connect;
",,,,,,,,,"psql","client backend",,"SHOW","","sql statement"

2021-06-23 06:08:12.474 IST,"adminuser","auditdb",66316,"[local]",60daab0c.
1030c,3,"idle",2021-06-23 06:08:12 IST,4/17,0,AUDIT,00000,"statement: SHOW edb_audit_statement;
",,,,,,,,,"psql","client backend",,"SHOW","","sql statement"

2021-06-23 06:08:20.519 IST,"adminuser","auditdb",66922,"[local]",60dab036.
1056a,4,"idle",2021-06-23 06:08:20 IST,4/15,0,AUDIT,00000,"statement: SET search_path TO edb;
",,,,,,,,,"psql","client backend",,"SET","","set"

2021-06-23 06:09:27.613 IST,"adminuser","auditdb",60218,"[local]",60dab117.
10602,5,"idle",2021-06-23 06:09:59 IST,4/21,0,AUDIT,00000,"statement: CREATE TABLE dept
       (deptno NUMBER(2),
        dname VARCHAR2(14),
        loc VARCHAR2(13) );",,,,,,,,,"psql","client backend",,"CREATE TABLE","","create"

2021-06-23 06:09:39.238 IST,"adminuser","auditdb",60218,"[local]",60d3083b.
eb3a,6,"idle",2021-06-23 06:09:29 IST,4/22,0,AUDIT,00000,"statement: INSERT INTO 
dept VALUES (10, 'ACCOUNTING', 'NEW YORK');",,,,,,,,,"psql","client backend",,"INSERT","","insert"

2021-06-23 06:09:39.242 IST,"adminuser","auditdb",60218,"[local]",60d3083b.
eb3a,7,"idle",2021-06-23 06:09:29 IST,4/23,0,AUDIT,00000,"statement: INSERT INTO 
dept VALUES (20, 'RESEARCH', 'DALLAS');",,,,,,,,,"psql","client backend",,"INSERT","","insert"

2021-06-23 06:09:39.247 IST,"adminuser","auditdb",60218,"[local]",60d3083b.
eb3a,8,"idle",2021-06-23 06:08:35 IST,4/24,0,AUDIT,00000,"statement: INSERT INTO 
dept VALUES (30, 'SALES', 'CHICAGO');",,,,,,,,,"psql","client backend",,"INSERT","","insert"

2021-06-23 06:10:04.849 IST,"adminuser","auditdb",60218,"[local]",60d3083b.
eb3a,9,"idle",2021-06-23 06:08:59 IST,4/25,0,AUDIT,00000,"statement: UPDATE dept SET loc = 'BEDFORD' 
WHERE deptno = 20;",,,,,,,,,"psql","client backend",,"UPDATE","","update"

2021-06-23 06:10:16.045 IST,"adminuser","auditdb",60218,"[local]",60d3083b.
eb3a,10,"idle",2021-06-23 06:08:59 IST,4/26,0,AUDIT,00000,"statement: SELECT * FROM dept;",,,,,,,,,
"psql","client backend",,"SELECT","","select"

2021-06-23 06:10:40.593 IST,"adminuser","auditdb",60218,"[local]",60d3083b.
eb3a,11,"idle",2021-06-23 06:08:59 IST,4/27,0,AUDIT,00000,"statement: DELETE FROM emp WHERE deptno = 40;
",,,,,,,,,"psql","client backend",,"DELETE","","delete"

2021-06-23 06:10:40.594 IST,"adminuser","auditdb",60218,"[local]",60d3083b.
eb3a,12,"DELETE",2021-06-23 06:08:59 IST,4/27,0,ERROR,42P01,"relation ""emp"" does not exist",,,,,,
"DELETE FROM emp WHERE deptno = 40;",13,,"psql","client backend",,"DELETE","","error"

2021-06-23 06:11:02.563 IST,"adminuser","auditdb",60218,"[local]",60d3083b.
eb3a,13,"idle",2021-06-23 06:08:59 IST,4/28,0,AUDIT,00000,"statement: DELETE FROM dept WHERE deptno = 10;
",,,,,,,,,"psql","client backend",,"DELETE","","delete"

2021-06-23 06:11:14.585 IST,"adminuser","auditdb",60218,"[local]",60d3083b.
eb3a,14,"idle",2021-06-23 06:08:59 IST,4/29,0,AUDIT,00000,"statement: SELECT * FROM dept;",,,,,,,,,
"psql","client backend",,"SELECT","","select"

Example 4

The following is an example where edb_audit_connect and edb_audit_statement are set with the following non-default values:

logging_collector = 'on'
edb_audit_connect = 'all'
edb_audit_statement = 'all'

The audit session for a user carol can be fully blocked by the database administrators using the ALTER USER command:

ALTER USER carol SET edb_audit_statement = "none";

Note

The database administrator can allow a specific user to audit any SQL statements by specifying the ALTER USER command and setting the edb_audit_statement parameter to any desired value.

The database session that occurs is the following:

$ psql auditdb carol
Password for user carol:
psql.bin (10.0.1)
Type "help" for help.

auditdb=# SHOW edb_audit_connect;
 edb_audit_connect
-------------------
 all
(1 row)

auditdb=# SHOW edb_audit_statement;
 edb_audit_statement 
---------------------
 none
(1 row)

auditdb=# SET search_path TO edb;
SET
auditdb=> CREATE TABLE salgrade
auditdb->         (grade NUMBER,
auditdb(>          losal NUMBER,
auditdb(>          hisal NUMBER);
CREATE TABLE
INSERT INTO salgrade VALUES (1,  700, 1200);
INSERT INTO salgrade VALUES (2, 1201, 1400);
INSERT INTO salgrade VALUES (3, 1401, 2000);

The resulting audit log file contains only the connection authentication information. Setting the edb_audit_statement parameter to none does not allow auditing any of the SQL statements for carol, and thereby no audit logs are generated.

Each audit log entry has been split and displayed across multiple lines, and a blank line has been inserted between the audit log entries for more clarity in the appearance of the results.

2021-06-29 02:27:26.240 IST,"carol","auditdb",68072,"[local]",60dabd4e.
109e8,1,"authentication",2021-06-29 02:27:26 IST,4/13,0,AUDIT,00000,"connection authorized: user=carol 
database=auditdb",,,,,,,,,"","client backend",,"","","connect"

Data Manipulation Language Statements

This section describes the values that can be included in the edb_audit_statement parameter to audit DML statements.

The following general rules apply:

If the edb_audit_statement parameter includes either dml or all, then all DML statements are audited.
If the edb_audit_statement is set to none, then no DML statements are audited.
Specific types of DML statements can be chosen for auditing by including a combination of values within the edb_audit_statement parameter.

Use the following syntax to specify an edb_audit_statement parameter value for SQL INSERT, UPDATE, DELETE, or TRUNCATE statements:

{ insert | update | delete | truncate }

Example

The following is an example where edb_audit_connect and edb_audit_statement are set with the following non-default values:

edb_audit_connect = 'all'
edb_audit_statement = 'UPDATE, DELETE, error'

Thus, only SQL statements invoked by the UPDATE and DELETE commands are audited. All errors are also included in the audit log (even errors not related to the UPDATE and DELETE commands).

The database session that occurs is the following:

$ psql auditdb adminuser
Password for user adminuser:
psql.bin (10.0.1)
Type "help" for help.

auditdb=# SHOW edb_audit_connect;
 edb_audit_connect
-------------------
 all
(1 row)

auditdb=# SHOW edb_audit_statement;
 edb_audit_statement
-----------------------
 UPDATE, DELETE, error
(1 row)

auditdb=# SET search_path TO edb;
SET
auditdb=# INSERT INTO dept VALUES (10,'ACCOUNTING','NEW YORK');
INSERT 0 1
auditdb=# INSERT INTO dept VALUES (20,'RESEARCH','DALLAS');
INSERT 0 1
auditdb=# INSERT INTO dept VALUES (30,'SALES','CHICAGO');
INSERT 0 1
auditdb=# INSERT INTO dept VALUES (40,'OPERATIONS','BOSTON');
INSERT 0 1
auditdb=# INSERT INTO emp VALUES (7369,'SMITH','CLERK',7902,'17-DEC-80',800,NULL,20);
INSERT 0 1
auditdb=# INSERT INTO emp VALUES (7499,'ALLEN','SALESMAN',7698,'20-FEB-81',1600,300,30);
INSERT 0 1
auditdb=# INSERT INTO emp VALUES (7521,'WARD','SALESMAN',7698,'22-FEB-81',1250,500,30);
INSERT 0 1
                 .
                 .
                 .
auditdb=# INSERT INTO emp VALUES (7934,'MILLER','CLERK',7782,'23-JAN-82',1300,NULL,10);
INSERT 0 1
auditdb=# UPDATE dept SET loc = 'BEDFORD' WHERE deptno = 40;
UPDATE 1
auditdb=# SELECT * FROM dept;
 deptno |   dname    |   loc
--------+------------+----------
     10 | ACCOUNTING | NEW YORK
     20 | RESEARCH   | DALLAS
     30 | SALES      | CHICAGO
     40 | OPERATIONS | BEDFORD
(4 rows)

auditdb=# DELETE FROM emp WHERE deptno = 10;
DELETE 3
auditdb=# TRUNCATE employee;
ERROR:  relation "employee" does not exist
auditdb=# TRUNCATE emp;
TRUNCATE TABLE
auditdb=# \q

The resulting audit log file contains the following.

Each audit log entry has been split and displayed across multiple lines, and a blank line has been inserted between the audit log entries for more clarity in the appearance of the results.

2017-07-16 13:43:26.638 EDT,"adminuser","auditdb",4574,"[local]",
596ba5be.11de,1,"authentication",2017-07-16 13:43:26 EDT,4/11,0,AUDIT,00000,
"connection authorized: user=adminuser database=auditdb",,,,,,,,,"","",""

2017-07-16 13:43:26.638 EDT,"adminuser","auditdb",4574,"[local]",
596ba5be.11de,2,"idle",2017-07-16 13:43:26 EDT,4/34,0,AUDIT,00000,
"statement: UPDATE dept SET loc = 'BEDFORD' WHERE deptno = 40;",,,,,,,,,"psql.bin","UPDATE",""

2017-07-16 13:43:26.638 EDT,"adminuser","auditdb",4574,"[local]",
596ba5be.11de,3,"idle",2017-07-16 13:43:26 EDT,4/36,0,AUDIT,00000,
"statement: DELETE FROM emp WHERE deptno = 10;",,,,,,,,,"psql.bin","DELETE",""

2017-07-16 13:45:46.999 EDT,"adminuser","auditdb",4574,"[local]",
596ba5be.11de,4,"TRUNCATE TABLE",2017-07-16 13:43:26 EDT,4/37,0,ERROR,42P01,
"relation ""employee"" does not exist",,,,,,"TRUNCATE employee;",,,"psql.bin","",""

2017-07-16 13:46:26.362 EDT,,,4491,,596ba59c.118b,1,,2017-07-16 13:42:52 EDT,,0,LOG,00000,
"database system is shut down",,,,,,,,,"","",""

The UPDATE dept and DELETE FROM emp statements are audited. Note that all of the prior INSERT statements are not audited since none of the values insert, dml, nor all are included in the edb_audit_statement parameter.

The SELECT * FROM dept statement is not audited as well since neither select nor all is included in the edb_audit_statement parameter.

Since error is specified in the edb_audit_statement parameter, but not the truncate value, the error on the TRUNCATE employee statement is logged in the audit file, but not the successful TRUNCATE emp statement.

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Audit Logging Configuration Parameters

Enabling Audit Logging

Selecting SQL Statements to Audit v10

Data Definition Language and Data Control Language Statements

Note

Data Manipulation Language Statements

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