Alvaro Herrera írta:
Zoltan Boszormenyi wrote:
attached is our patch against HEAD which enables extending CommandIds
to 64-bit. This is for enabling long transactions that really do that much
non-read-only work in one transaction.
I think you should add a pg_control field and corresponding check, to
avoid a 64bit-Cid postmaster to start on a 32bit-Cid data area and vice
versa.
I added the check but I needed to add it BEFORE checking for
toast_max_chunk_size otherwise it complained about this more
cryptic problem. I think it's cleaner to report this failure to know
why toast_max_chunk_size != TOAST_MAX_CHUNK_SIZE.
Best regards,
Zoltán Böszörményi
--
----------------------------------
Zoltán Böszörményi
Cybertec Schönig & Schönig GmbH
http://www.postgresql.at/
diff -dcrpN pgsql.orig/configure pgsql-cid64/configure
*** pgsql.orig/configure 2008-03-02 13:44:42.000000000 +0100
--- pgsql-cid64/configure 2008-03-04 16:53:46.000000000 +0100
*************** if test -n "$ac_init_help"; then
*** 1349,1354 ****
--- 1349,1355 ----
Optional Features:
--disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
--enable-FEATURE[=ARG] include FEATURE [ARG=yes]
+ --enable-huge-commandid enable 64-bit CommandId support
--enable-integer-datetimes enable 64-bit integer date/time support
--enable-nls[=LANGUAGES] enable Native Language Support
--disable-shared do not build shared libraries
*************** fi
*** 2175,2180 ****
--- 2176,2219 ----
#
+ # 64-bit CommandId
+ #
+ echo "$as_me:$LINENO: checking whether to build with 64-bit CommandId support" >&5
+ echo $ECHO_N "checking whether to build with 64-bit CommandId support... $ECHO_C" >&6
+
+ pgac_args="$pgac_args enable_huge_commandid"
+
+ # Check whether --enable-huge-commandid or --disable-huge-commandid was given.
+ if test "${enable_huge_commandid+set}" = set; then
+ enableval="$enable_huge_commandid"
+
+ case $enableval in
+ yes)
+
+ cat >>confdefs.h <<\_ACEOF
+ #define USE_64BIT_COMMANDID 1
+ _ACEOF
+
+ ;;
+ no)
+ :
+ ;;
+ *)
+ { { echo "$as_me:$LINENO: error: no argument expected for --enable-huge-commandid option" >&5
+ echo "$as_me: error: no argument expected for --enable-huge-commandid option" >&2;}
+ { (exit 1); exit 1; }; }
+ ;;
+ esac
+
+ else
+ enable_huge_commandid=no
+
+ fi;
+
+ echo "$as_me:$LINENO: result: $enable_huge_commandid" >&5
+ echo "${ECHO_T}$enable_huge_commandid" >&6
+
+ #
# 64-bit integer date/time storage (--enable-integer-datetimes)
#
{ echo "$as_me:$LINENO: checking whether to build with 64-bit integer date/time support" >&5
diff -dcrpN pgsql.orig/configure.in pgsql-cid64/configure.in
*** pgsql.orig/configure.in 2008-03-02 13:44:43.000000000 +0100
--- pgsql-cid64/configure.in 2008-03-04 16:53:46.000000000 +0100
*************** PGAC_ARG_REQ(with, libs, [ --with-
*** 128,133 ****
--- 128,142 ----
#
+ # 64-bit CommandId
+ #
+ AC_MSG_CHECKING([whether to build with 64-bit CommandId support])
+ PGAC_ARG_BOOL(enable, huge-commandid, no, [ --enable-huge-commandid enable 64-bit CommandId support],
+ [AC_DEFINE([USE_64BIT_COMMANDID], 1,
+ [Define to 1 if you want 64-bit CommandId support. (--enable-huge-commandid)])])
+ AC_MSG_RESULT([$enable_huge_commandid])
+
+ #
# 64-bit integer date/time storage (--enable-integer-datetimes)
#
AC_MSG_CHECKING([whether to build with 64-bit integer date/time support])
diff -dcrpN pgsql.orig/doc/src/sgml/installation.sgml pgsql-cid64/doc/src/sgml/installation.sgml
*** pgsql.orig/doc/src/sgml/installation.sgml 2008-02-18 13:49:58.000000000 +0100
--- pgsql-cid64/doc/src/sgml/installation.sgml 2008-03-04 17:16:14.000000000 +0100
*************** su - postgres
*** 1011,1016 ****
--- 1011,1027 ----
</varlistentry>
<varlistentry>
+ <term><option>--enable-huge-commandid</option></term>
+ <listitem>
+ <para>
+ Use 64-bit CommandIds if you are planning to run transactions
+ consisting of more than 4 billion commands. This is off by default
+ to save disk space.
+ </para>
+ </listitem>
+ </varlistentry>
+
+ <varlistentry>
<term><option>--enable-integer-datetimes</option></term>
<listitem>
<para>
diff -dcrpN pgsql.orig/src/backend/access/transam/xact.c pgsql-cid64/src/backend/access/transam/xact.c
*** pgsql.orig/src/backend/access/transam/xact.c 2008-01-15 19:56:59.000000000 +0100
--- pgsql-cid64/src/backend/access/transam/xact.c 2008-03-04 16:57:54.000000000 +0100
*************** CommandCounterIncrement(void)
*** 592,598 ****
--- 592,602 ----
currentCommandId -= 1;
ereport(ERROR,
(errcode(ERRCODE_PROGRAM_LIMIT_EXCEEDED),
+ #ifdef USE_64BIT_COMMANDID
+ errmsg("cannot have more than 2^64-1 commands in a transaction")));
+ #else
errmsg("cannot have more than 2^32-1 commands in a transaction")));
+ #endif
}
currentCommandIdUsed = false;
diff -dcrpN pgsql.orig/src/backend/access/transam/xlog.c pgsql-cid64/src/backend/access/transam/xlog.c
*** pgsql.orig/src/backend/access/transam/xlog.c 2008-02-18 13:50:00.000000000 +0100
--- pgsql-cid64/src/backend/access/transam/xlog.c 2008-03-04 21:39:30.000000000 +0100
*************** WriteControlFile(void)
*** 3794,3799 ****
--- 3794,3805 ----
ControlFile->enableIntTimes = FALSE;
#endif
+ #ifdef USE_64BIT_COMMANDID
+ ControlFile->enable64bitCommandId = TRUE;
+ #else
+ ControlFile->enable64bitCommandId = FALSE;
+ #endif
+
ControlFile->localeBuflen = LOCALE_NAME_BUFLEN;
localeptr = setlocale(LC_COLLATE, NULL);
if (!localeptr)
*************** ReadControlFile(void)
*** 3989,3994 ****
--- 3995,4017 ----
" but the server was compiled with INDEX_MAX_KEYS %d.",
ControlFile->indexMaxKeys, INDEX_MAX_KEYS),
errhint("It looks like you need to recompile or initdb.")));
+
+ #ifdef USE_64BIT_COMMANDID
+ if (ControlFile->enable64bitCommandId != TRUE)
+ ereport(FATAL,
+ (errmsg("database files are incompatible with server"),
+ errdetail("The database cluster was initialized without USE_64BIT_COMMANDID"
+ " but the server was compiled with USE_64BIT_COMMANDID."),
+ errhint("It looks like you need to recompile or initdb.")));
+ #else
+ if (ControlFile->enable64bitCommandId != FALSE)
+ ereport(FATAL,
+ (errmsg("database files are incompatible with server"),
+ errdetail("The database cluster was initialized with USE_64BIT_COMMANDID"
+ " but the server was compiled without USE_64BIT_COMMANDID."),
+ errhint("It looks like you need to recompile or initdb.")));
+ #endif
+
if (ControlFile->toast_max_chunk_size != TOAST_MAX_CHUNK_SIZE)
ereport(FATAL,
(errmsg("database files are incompatible with server"),
diff -dcrpN pgsql.orig/src/backend/bootstrap/bootstrap.c pgsql-cid64/src/backend/bootstrap/bootstrap.c
*** pgsql.orig/src/backend/bootstrap/bootstrap.c 2008-02-18 13:50:00.000000000 +0100
--- pgsql-cid64/src/backend/bootstrap/bootstrap.c 2008-03-04 16:53:46.000000000 +0100
*************** static const struct typinfo TypInfo[] =
*** 139,145 ****
--- 139,149 ----
F_TIDIN, F_TIDOUT},
{"xid", XIDOID, 0, 4, true, 'i', 'p',
F_XIDIN, F_XIDOUT},
+ #ifdef USE_64BIT_COMMANDID
+ {"cid", CIDOID, 0, 8, false, 'd', 'p',
+ #else
{"cid", CIDOID, 0, 4, true, 'i', 'p',
+ #endif
F_CIDIN, F_CIDOUT},
{"int2vector", INT2VECTOROID, INT2OID, -1, false, 'i', 'p',
F_INT2VECTORIN, F_INT2VECTOROUT},
diff -dcrpN pgsql.orig/src/backend/catalog/genbki.sh pgsql-cid64/src/backend/catalog/genbki.sh
*** pgsql.orig/src/backend/catalog/genbki.sh 2008-01-01 20:45:48.000000000 +0100
--- pgsql-cid64/src/backend/catalog/genbki.sh 2008-03-04 16:53:46.000000000 +0100
*************** for dir in $INCLUDE_DIRS; do
*** 114,119 ****
--- 114,136 ----
fi
done
+ # Deduce CIDSTORAGELEN from pg_config.h / USE_64BIT_COMMANDID
+ for dir in $INCLUDE_DIRS; do
+ if [ -f "$dir/pg_config.h" ]; then
+ HUGECID=`grep '^#define[ ]*USE_64BIT_COMMANDID' $dir/pg_config.h | $AWK '{ print $3 }'`
+ break
+ fi
+ done
+ if [ "$HUGECID" == "1" ]; then
+ CIDSTORAGELEN="8"
+ CIDSTORAGEALIGN="d"
+ CIDPASSBYVAL="f"
+ else
+ CIDSTORAGELEN="4"
+ CIDSTORAGEALIGN="i"
+ CIDPASSBYVAL="t"
+ fi
+
# Get BOOTSTRAP_SUPERUSERID from catalog/pg_authid.h
for dir in $INCLUDE_DIRS; do
if [ -f "$dir/catalog/pg_authid.h" ]; then
*************** sed -e "s/;[ ]*$//g" \
*** 164,169 ****
--- 181,189 ----
-e "s/(TransactionId/(xid/g" \
-e "s/PGUID/$BOOTSTRAP_SUPERUSERID/g" \
-e "s/NAMEDATALEN/$NAMEDATALEN/g" \
+ -e "s/CIDSTORAGELEN/$CIDSTORAGELEN/g" \
+ -e "s/CIDSTORAGEALIGN/$CIDSTORAGEALIGN/g" \
+ -e "s/CIDPASSBYVAL/$CIDPASSBYVAL/g" \
-e "s/PGNSP/$PG_CATALOG_NAMESPACE/g" \
| $AWK '
# ----------------
diff -dcrpN pgsql.orig/src/backend/catalog/heap.c pgsql-cid64/src/backend/catalog/heap.c
*** pgsql.orig/src/backend/catalog/heap.c 2008-01-01 20:45:48.000000000 +0100
--- pgsql-cid64/src/backend/catalog/heap.c 2008-03-04 16:53:46.000000000 +0100
*************** static FormData_pg_attribute a3 = {
*** 117,123 ****
--- 117,127 ----
static FormData_pg_attribute a4 = {
0, {"cmin"}, CIDOID, 0, sizeof(CommandId),
MinCommandIdAttributeNumber, 0, -1, -1,
+ #ifdef USE_64BIT_COMMANDID
+ false, 'p', 'd', true, false, false, true, 0
+ #else
true, 'p', 'i', true, false, false, true, 0
+ #endif
};
static FormData_pg_attribute a5 = {
*************** static FormData_pg_attribute a5 = {
*** 129,135 ****
--- 133,143 ----
static FormData_pg_attribute a6 = {
0, {"cmax"}, CIDOID, 0, sizeof(CommandId),
MaxCommandIdAttributeNumber, 0, -1, -1,
+ #ifdef USE_64BIT_COMMANDID
+ false, 'p', 'd', true, false, false, true, 0
+ #else
true, 'p', 'i', true, false, false, true, 0
+ #endif
};
/*
diff -dcrpN pgsql.orig/src/backend/catalog/Makefile pgsql-cid64/src/backend/catalog/Makefile
*** pgsql.orig/src/backend/catalog/Makefile 2008-03-02 13:44:44.000000000 +0100
--- pgsql-cid64/src/backend/catalog/Makefile 2008-03-04 16:55:51.000000000 +0100
*************** postgres.description: postgres.bki ;
*** 46,52 ****
postgres.shdescription: postgres.bki ;
! postgres.bki: genbki.sh $(POSTGRES_BKI_SRCS) $(top_builddir)/src/include/pg_config_manual.h
AWK='$(AWK)' $(SHELL) $< $(pg_includes) --set-version=$(VERSION) -o postgres $(POSTGRES_BKI_SRCS)
.PHONY: install-data
--- 46,52 ----
postgres.shdescription: postgres.bki ;
! postgres.bki: genbki.sh $(POSTGRES_BKI_SRCS) $(top_builddir)/src/include/pg_config_manual.h $(top_builddir)/src/include/pg_config.h
AWK='$(AWK)' $(SHELL) $< $(pg_includes) --set-version=$(VERSION) -o postgres $(POSTGRES_BKI_SRCS)
.PHONY: install-data
diff -dcrpN pgsql.orig/src/include/catalog/pg_attribute.h pgsql-cid64/src/include/catalog/pg_attribute.h
*** pgsql.orig/src/include/catalog/pg_attribute.h 2008-01-01 20:45:56.000000000 +0100
--- pgsql-cid64/src/include/catalog/pg_attribute.h 2008-03-04 16:53:46.000000000 +0100
*************** DATA(insert ( 1247 typdefault 25 -1 -1
*** 278,286 ****
DATA(insert ( 1247 ctid 27 0 6 -1 0 -1 -1 f p s t f f t 0));
DATA(insert ( 1247 oid 26 0 4 -2 0 -1 -1 t p i t f f t 0));
DATA(insert ( 1247 xmin 28 0 4 -3 0 -1 -1 t p i t f f t 0));
! DATA(insert ( 1247 cmin 29 0 4 -4 0 -1 -1 t p i t f f t 0));
DATA(insert ( 1247 xmax 28 0 4 -5 0 -1 -1 t p i t f f t 0));
! DATA(insert ( 1247 cmax 29 0 4 -6 0 -1 -1 t p i t f f t 0));
DATA(insert ( 1247 tableoid 26 0 4 -7 0 -1 -1 t p i t f f t 0));
/* ----------------
--- 278,286 ----
DATA(insert ( 1247 ctid 27 0 6 -1 0 -1 -1 f p s t f f t 0));
DATA(insert ( 1247 oid 26 0 4 -2 0 -1 -1 t p i t f f t 0));
DATA(insert ( 1247 xmin 28 0 4 -3 0 -1 -1 t p i t f f t 0));
! DATA(insert ( 1247 cmin 29 0 CIDSTORAGELEN -4 0 -1 -1 CIDPASSBYVAL p CIDSTORAGEALIGN t f f t 0));
DATA(insert ( 1247 xmax 28 0 4 -5 0 -1 -1 t p i t f f t 0));
! DATA(insert ( 1247 cmax 29 0 CIDSTORAGELEN -6 0 -1 -1 CIDPASSBYVAL p CIDSTORAGEALIGN t f f t 0));
DATA(insert ( 1247 tableoid 26 0 4 -7 0 -1 -1 t p i t f f t 0));
/* ----------------
*************** DATA(insert ( 1255 proacl 1034 -1 -1
*** 334,342 ****
DATA(insert ( 1255 ctid 27 0 6 -1 0 -1 -1 f p s t f f t 0));
DATA(insert ( 1255 oid 26 0 4 -2 0 -1 -1 t p i t f f t 0));
DATA(insert ( 1255 xmin 28 0 4 -3 0 -1 -1 t p i t f f t 0));
! DATA(insert ( 1255 cmin 29 0 4 -4 0 -1 -1 t p i t f f t 0));
DATA(insert ( 1255 xmax 28 0 4 -5 0 -1 -1 t p i t f f t 0));
! DATA(insert ( 1255 cmax 29 0 4 -6 0 -1 -1 t p i t f f t 0));
DATA(insert ( 1255 tableoid 26 0 4 -7 0 -1 -1 t p i t f f t 0));
/* ----------------
--- 334,342 ----
DATA(insert ( 1255 ctid 27 0 6 -1 0 -1 -1 f p s t f f t 0));
DATA(insert ( 1255 oid 26 0 4 -2 0 -1 -1 t p i t f f t 0));
DATA(insert ( 1255 xmin 28 0 4 -3 0 -1 -1 t p i t f f t 0));
! DATA(insert ( 1255 cmin 29 0 CIDSTORAGELEN -4 0 -1 -1 CIDPASSBYVAL p CIDSTORAGEALIGN t f f t 0));
DATA(insert ( 1255 xmax 28 0 4 -5 0 -1 -1 t p i t f f t 0));
! DATA(insert ( 1255 cmax 29 0 CIDSTORAGELEN -6 0 -1 -1 CIDPASSBYVAL p CIDSTORAGEALIGN t f f t 0));
DATA(insert ( 1255 tableoid 26 0 4 -7 0 -1 -1 t p i t f f t 0));
/* ----------------
*************** DATA(insert ( 1249 attinhcount 23 -1 4
*** 382,390 ****
DATA(insert ( 1249 ctid 27 0 6 -1 0 -1 -1 f p s t f f t 0));
/* no OIDs in pg_attribute */
DATA(insert ( 1249 xmin 28 0 4 -3 0 -1 -1 t p i t f f t 0));
! DATA(insert ( 1249 cmin 29 0 4 -4 0 -1 -1 t p i t f f t 0));
DATA(insert ( 1249 xmax 28 0 4 -5 0 -1 -1 t p i t f f t 0));
! DATA(insert ( 1249 cmax 29 0 4 -6 0 -1 -1 t p i t f f t 0));
DATA(insert ( 1249 tableoid 26 0 4 -7 0 -1 -1 t p i t f f t 0));
/* ----------------
--- 382,390 ----
DATA(insert ( 1249 ctid 27 0 6 -1 0 -1 -1 f p s t f f t 0));
/* no OIDs in pg_attribute */
DATA(insert ( 1249 xmin 28 0 4 -3 0 -1 -1 t p i t f f t 0));
! DATA(insert ( 1249 cmin 29 0 CIDSTORAGELEN -4 0 -1 -1 CIDPASSBYVAL p CIDSTORAGEALIGN t f f t 0));
DATA(insert ( 1249 xmax 28 0 4 -5 0 -1 -1 t p i t f f t 0));
! DATA(insert ( 1249 cmax 29 0 CIDSTORAGELEN -6 0 -1 -1 CIDPASSBYVAL p CIDSTORAGEALIGN t f f t 0));
DATA(insert ( 1249 tableoid 26 0 4 -7 0 -1 -1 t p i t f f t 0));
/* ----------------
*************** DATA(insert ( 1259 reloptions 1009 -1
*** 450,458 ****
DATA(insert ( 1259 ctid 27 0 6 -1 0 -1 -1 f p s t f f t 0));
DATA(insert ( 1259 oid 26 0 4 -2 0 -1 -1 t p i t f f t 0));
DATA(insert ( 1259 xmin 28 0 4 -3 0 -1 -1 t p i t f f t 0));
! DATA(insert ( 1259 cmin 29 0 4 -4 0 -1 -1 t p i t f f t 0));
DATA(insert ( 1259 xmax 28 0 4 -5 0 -1 -1 t p i t f f t 0));
! DATA(insert ( 1259 cmax 29 0 4 -6 0 -1 -1 t p i t f f t 0));
DATA(insert ( 1259 tableoid 26 0 4 -7 0 -1 -1 t p i t f f t 0));
/* ----------------
--- 450,458 ----
DATA(insert ( 1259 ctid 27 0 6 -1 0 -1 -1 f p s t f f t 0));
DATA(insert ( 1259 oid 26 0 4 -2 0 -1 -1 t p i t f f t 0));
DATA(insert ( 1259 xmin 28 0 4 -3 0 -1 -1 t p i t f f t 0));
! DATA(insert ( 1259 cmin 29 0 CIDSTORAGELEN -4 0 -1 -1 CIDPASSBYVAL p CIDSTORAGEALIGN t f f t 0));
DATA(insert ( 1259 xmax 28 0 4 -5 0 -1 -1 t p i t f f t 0));
! DATA(insert ( 1259 cmax 29 0 CIDSTORAGELEN -6 0 -1 -1 CIDPASSBYVAL p CIDSTORAGEALIGN t f f t 0));
DATA(insert ( 1259 tableoid 26 0 4 -7 0 -1 -1 t p i t f f t 0));
/* ----------------
diff -dcrpN pgsql.orig/src/include/catalog/pg_control.h pgsql-cid64/src/include/catalog/pg_control.h
*** pgsql.orig/src/include/catalog/pg_control.h 2008-02-18 13:50:12.000000000 +0100
--- pgsql-cid64/src/include/catalog/pg_control.h 2008-03-04 21:14:04.000000000 +0100
*************** typedef struct ControlFileData
*** 145,150 ****
--- 145,152 ----
char lc_collate[LOCALE_NAME_BUFLEN];
char lc_ctype[LOCALE_NAME_BUFLEN];
+ uint32 enable64bitCommandId;
+
/* CRC of all above ... MUST BE LAST! */
pg_crc32 crc;
} ControlFileData;
diff -dcrpN pgsql.orig/src/include/catalog/pg_type.h pgsql-cid64/src/include/catalog/pg_type.h
*** pgsql.orig/src/include/catalog/pg_type.h 2008-01-01 20:45:57.000000000 +0100
--- pgsql-cid64/src/include/catalog/pg_type.h 2008-03-04 16:59:27.000000000 +0100
*************** DATA(insert OID = 28 ( xid PGNSP PGU
*** 314,320 ****
DESCR("transaction id");
#define XIDOID 28
! DATA(insert OID = 29 ( cid PGNSP PGUID 4 t b t \054 0 0 1012 cidin cidout cidrecv cidsend - - - i p f 0 -1 0 _null_ _null_ ));
DESCR("command identifier type, sequence in transaction id");
#define CIDOID 29
--- 314,320 ----
DESCR("transaction id");
#define XIDOID 28
! DATA(insert OID = 29 ( cid PGNSP PGUID CIDSTORAGELEN CIDPASSBYVAL b t \054 0 0 1012 cidin cidout cidrecv cidsend - - - CIDSTORAGEALIGN p f 0 -1 0 _null_ _null_ ));
DESCR("command identifier type, sequence in transaction id");
#define CIDOID 29
diff -dcrpN pgsql.orig/src/include/c.h pgsql-cid64/src/include/c.h
*** pgsql.orig/src/include/c.h 2008-03-02 13:44:45.000000000 +0100
--- pgsql-cid64/src/include/c.h 2008-03-04 21:05:23.000000000 +0100
*************** typedef TransactionId MultiXactId;
*** 382,388 ****
--- 382,392 ----
typedef uint32 MultiXactOffset;
+ #ifdef USE_64BIT_COMMANDID
+ typedef uint64 CommandId;
+ #else
typedef uint32 CommandId;
+ #endif
#define FirstCommandId ((CommandId) 0)
diff -dcrpN pgsql.orig/src/include/pg_config.h.in pgsql-cid64/src/include/pg_config.h.in
*** pgsql.orig/src/include/pg_config.h.in 2008-02-18 13:50:12.000000000 +0100
--- pgsql-cid64/src/include/pg_config.h.in 2008-03-04 16:53:46.000000000 +0100
***************
*** 656,661 ****
--- 656,665 ----
*/
#undef UINT64_FORMAT
+ /* Define to 1 if you want 64-bit CommandId support. (--enable-huge-commandid)
+ */
+ #undef USE_64BIT_COMMANDID
+
/* Define to 1 to build with assertion checks. (--enable-cassert) */
#undef USE_ASSERT_CHECKING
diff -dcrpN pgsql.orig/src/include/postgres.h pgsql-cid64/src/include/postgres.h
*** pgsql.orig/src/include/postgres.h 2008-01-01 20:45:56.000000000 +0100
--- pgsql-cid64/src/include/postgres.h 2008-03-04 16:53:46.000000000 +0100
*************** typedef Datum *DatumPtr;
*** 462,475 ****
--- 462,483 ----
* Returns command identifier value of a datum.
*/
+ #ifdef USE_64BIT_COMMANDID
+ #define DatumGetCommandId(X) ((CommandId) DatumGetInt64(X))
+ #else
#define DatumGetCommandId(X) ((CommandId) GET_4_BYTES(X))
+ #endif
/*
* CommandIdGetDatum
* Returns datum representation for a command identifier.
*/
+ #ifdef USE_64BIT_COMMANDID
+ #define CommandIdGetDatum(X) ((Datum) Int64GetDatum(X))
+ #else
#define CommandIdGetDatum(X) ((Datum) SET_4_BYTES(X))
+ #endif
/*
* DatumGetPointer
--
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