T315-007
Make prepare statement name case sensitive on postgres. Before this change
the name of prepared statement was sent to postgres server unquoted in
direct SQL statement PREPARE. As a result, the name was stored in lowercase
in the database server session. PQexecPrepared API call with the statement
name in original casing returned with error about failure to find the
prepared statement. To fix that, we use PQprepare call (available starting
from postgres version 8.0) or quoted name in direct SQL PREPARE statement in
older postgres versions.
Change-Id: I7ba455908de4d768f7bdc57102359ddfb5e6aaae
Part of major reorganization of gnatcoll for better modularity and
maintainability.
Change-Id: Iad961b53634520081eb90c37aff2bfdbf58b2e06
TN: P909-033 no-precommit-check
