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psqlodbc35w(30a) because psqlodbc35w(30a) is explicitly loaded beforehand and delay loaded also.
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psqlsetup(a) beforehand instead of delayloading.
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psqlsetup also playes a role to relay ODBC API calls to compiled psqlodbc35w(30a).dll.
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Instead of speaking the frontend/backend protocol directly, use libpq's
functions for executing queries. This makes it libpq a hard dependency, but
removes direct dependencies to SSL and SSPI, and a lot of related code.
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MSDTC support.
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This avoids the cumbersome double-negatives, "#ifndef NOT_USE_LIBPQ",
making the code easier to read.
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1. Remove pointlessly complicated AsyncThreads stuff. Instead use
_beginthread() to clean up threads.
2. Make pgenlist.dll from the structure change of ConnectionClass.
The driver dlls exports the functions described in connexp.h
which are used by pgenlist.dll.
3. Isolate the current communication path if necessary.
While an IAsyncPG object is alive, a ConnectionClass object (hereinafter
refered to as conn-obj) is assigned to it. The assignment has to be
changed in the following cases.
a) SQLDisconnect() is called for the current connection handle which
is assigned to an IAsyncPG object.
Allocate another conn-obj and move the current communication
path (*sock* member of the current conn-obj) to the new conn-obj.
The communicaation path is lost from the current conn-obj and
the new conn-obj is assigned to the IAsyncPG object.
b) Another (global) transaction is about to begin but the current
global transaction is not PREPARED yet.
Same as case a) but will open a new communication path for
the current conn-obj for the subsequent ODBC API calls.
c) Another (global) transaction is about to begin and the current
global transaction is already PREPARED.
Allocate another conn-obj and open a new communication path for
the conn-obj. The new conn-obj is assigned to the IAsyncPG
object only to issue COMMIT/ROLLBACK PREPARED command.
communication pass (*sock* member of the current ConnectionClass
object) to the new object and change the state of the current
object NOT CONNECTED. The IAsyncPG object uses new object instead
of the current object. In case b) the current object will open a
new communication path.
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notice.txt doesn't exist anymore, the copyright and license information is
in readme.txt now. Update references in comments.
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as a type oid parameter as an extension of pgtype_xxxx functions so that SQLColumns and SQLDescribeCol(SQLColAttrinute) could use common functions.
2.Call PQconnectdbParams instead of PQconnectdb when it's available.
3.Make cursor open check at transaction end a little more effective.
4.Added code for SQL_INTERVAL support and refcursor support though
they are disabled.
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2) Revise autoconf/automake so that libpq/ssl header/libs are resolved at configure phase.
3) Use md5.c directly instead of win_md5.c.
4) Suppress some compiler warnings.
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to the sslmode option.
2. Take the platforms where char is unsigned into account per report from Alex Goncharov.
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1. Close (holdable) cursors on commit if possible.
2. Recycle columns cache info if the size becomes pretty large.
3. Add sslverify=none to conninfo in case of SSL connections
via libpq of version 8.4.
4. Add a functionality to change the directory for logging.
5. Correct the error code for communication errors.
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infinite loop of trial to use the same (should be lower) version of
protocols. Also try to use SSPI service for SSL support when libpq
is unavailable.
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1. Correct the COLUMN_LENGTH return value of SQLColumns() for varchar/bpchar
type columns (Unicode driver).
2. Change to not return database name if case of MS Query.
3. The first cut to use Windows SSPI. The trial to use Schannel service
for SSL support.
4. Be more careful about <for locking clause> in UseDeclareFetch mode.
Add missing? "for read only" clause for read only queries for 8.3
or later servers for safety.
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. Append DETAIL messages to GetDiag...() messages.
. Use SQL_SUCCEEDED macros so as to simplify the code.
. Use lastval() function to replace IDENTITY on 8.1 or later servers.
. Remove WSAStartup() and WSACleanup() from DllMain.
. Load libpq from the driver's folder.
. Use QR_get_value_backend_int/_text() funcs instead of
QR_get_value_backend_row().
. Improve the implemetation of SQLSetPos(.., SQL_ADD/SQL_UPDATE)
using the 8.2 new feature INSERT/UPDATE .. returning .
. Seaparate DTC code as a Delayload DLL.
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1.Improve the handling of connection error messages.
2.Add an option to convert empty strings to NULL.
3.Handle domain type as the basetype.
4.Fake MSS in case of not only SQLExecute but also SQLParamData.
5.Prevent SQLColumns from displaying system columns.
6.Unload delayLoaded libraries on dll detach (not on disconnect time).
7.Fix a SQLGetDiagField crash bug.
8.Fix a insertion count bug.
9.Take win98 cases into account a little.
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