[teiid-issues] [JBoss JIRA] (TEIID-5658) PG transport can send multiple read messages

[Steven Hawkins (Jira)]

Steven Hawkins created TEIID-5658:
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             Summary: PG transport can send multiple read messages
                 Key: TEIID-5658
                 URL: https://issues.jboss.org/browse/TEIID-5658
             Project: Teiid
          Issue Type: Bug
          Components: ODBC
            Reporter: Steven Hawkins
            Assignee: Steven Hawkins
             Fix For: 12.1, 12.0.1, 11.2.3


The code is allowing for a sequence of events such as:

2019-02-13 12:26:55.159 org.teiid.ODBC TRACE NIO1 invoking server method: execute [, 0]
2019-02-13 12:26:55.163 org.teiid.ODBC TRACE NIO1 invoking client method: sendResults [null, org.teiid.jdbc.ResultSetImpl at 1a79693d, [org.teiid.odbc.PGUtil$PgColInfo at 79f0f194], org.teiid.client.util.ResultsFuture at 64fb47b7, FORWARD, -1, false, null]
2019-02-13 12:26:55.163 org.teiid.ODBC TRACE Worker5_QueryProcessorQueue533 invoking client method: sendCommandComplete [select oid from pg_class where relname='pg_class', [1]]
2019-02-13 12:26:55.163 org.teiid.ODBC TRACE Worker5_QueryProcessorQueue533 invoking client method: ready [false, false]
2019-02-13 12:26:55.163 org.teiid.ODBC TRACE NIO1 invoking server method: sync null
2019-02-13 12:26:55.163 org.teiid.ODBC TRACE NIO1 invoking client method: ready [false, false]

That is after execute we are immediately responding with results, command complete, and ready.  Then we see a sync and respond with ready again.

The first ready is not expected - it should not be issued until after the sync.

The causes issues in the pg jdbc driver such as reporting that there is no result set.  See TEIID-5425



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