[JDBC] [pgjdbc/pgjdbc] 5334cb: test: skip ConcurrentStatementFetch forPostgreSQL...

  Branch: refs/heads/master
  Home:   https://github.com/pgjdbc/pgjdbc
  Commit: 5334cb6ef7554bba255f00baf4ff3220f16e31ea
      https://github.com/pgjdbc/pgjdbc/commit/5334cb6ef7554bba255f00baf4ff3220f16e31ea
  Author: Vladimir Sitnikov 
  Date:   2017-07-25 (Tue, 25 Jul 2017)

  Changed paths:
    M README.md
    M pgjdbc/src/test/java/org/postgresql/test/jdbc2/ConcurrentStatementFetch.java

  Log Message:
  -----------
  test: skip ConcurrentStatementFetch for PostgreSQL < 8.4 (#884)

PostgreSQL 8.2 is known to close named portals unexpectedly, so we just ignore the test.
The following scenario might be affected: old backend version + setFetchSize + interleaved ResultSet processing

This is a follow-up for #870 and #869 for PostgreSQL < 8.4