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https://issues.apache.org/jira/browse/HAWQ-989?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ruilong Huo updated HAWQ-989:
-----------------------------
Fix Version/s: backlog
> PL/Python function with psycopg2 cannot connect to hawq itself
> --------------------------------------------------------------
>
> Key: HAWQ-989
> URL: https://issues.apache.org/jira/browse/HAWQ-989
> Project: Apache HAWQ
> Issue Type: Bug
> Components: Core
> Reporter: Ruilong Huo
> Assignee: Ruilong Huo
> Fix For: backlog
>
>
> For one use case I want to connect to hawq itself from hawq PL/Python
> function using python psycopg2 library to retrieve some information. However,
> it errors with "authentication failed for user "gpadmin": invalid
> authentication method"
> {noformat}
> DROP FUNCTION IF EXISTS connection_test();
> DROP FUNCTION
> CREATE OR REPLACE FUNCTION connection_test( ) RETURNS text AS
> $$
> import psycopg2
> try:
> conn = psycopg2.connect("dbname='gptest' user='gpadmin' host='localhost'
> port=5432")
> return "Connection successful "
> except Exception , msg :
> return "Exception: {m}".format(m=msg)
> $$
> LANGUAGE 'plpythonu' VOLATILE;
> CREATE FUNCTION
> SELECT * FROM connection_test();
> connection_test
> --------------------------------------------------------------------------------------------
> Exception: FATAL: authentication failed for user "gpadmin": invalid
> authentication method
> (1 row)
> {noformat}
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