8 files changed, 52 insertions, 13 deletions
diff --git a/src/include/c.h b/src/include/c.h
index 744721860c5..e7ee5105a27 100644
--- a/src/include/c.h
+++ b/src/include/c.h
@@ -249,6 +249,36 @@ typedef uint8 bits8;			/* >= 8 bits */
 typedef uint16 bits16;			/* >= 16 bits */
 typedef uint32 bits32;			/* >= 32 bits */
 
+/* should be defined in stdint.h, but we guarantee them here */
+#ifndef INT8_MIN
+#define INT8_MIN	(-0x7F-1)
+#endif
+#ifndef INT8_MAX
+#define INT8_MAX	(0x7F)
+#endif
+#ifndef INT16_MIN
+#define INT16_MIN	(-0x7FFF-1)
+#endif
+#ifndef INT16_MAX
+#define INT16_MAX	(0x7FFF)
+#endif
+#ifndef INT32_MIN
+#define INT32_MIN	(-0x7FFFFFFF-1)
+#endif
+#ifndef INT32_MAX
+#define INT32_MAX	(0x7FFFFFFF)
+#endif
+
+#ifndef UINT8_MAX
+#define UINT8_MAX	(0xFF)
+#endif
+#ifndef UINT16_MAX
+#define UINT16_MAX	(0xFFFF)
+#endif
+#ifndef UINT32_MAX
+#define UINT32_MAX	(0xFFFFFFFF)
+#endif
+
 /*
  * 64-bit integers
  */
@@ -284,6 +314,17 @@ typedef unsigned long long int uint64;
 #define UINT64CONST(x) ((uint64) x)
 #endif
 
+/* should be defined in stdint.h, but we guarantee them here */
+#ifndef INT64_MIN
+#define INT64_MIN	(-INT64CONST(0x7FFFFFFFFFFFFFFF) - 1)
+#endif
+#ifndef INT64_MAX
+#define INT64_MAX	INT64CONST(0x7FFFFFFFFFFFFFFF)
+#endif
+#ifndef UINT64_MAX
+#define UINT64_MAX	UINT64CONST(0xFFFFFFFFFFFFFFFF)
+#endif
+
 /* snprintf format strings to use for 64-bit integers */
 #define INT64_FORMAT "%" INT64_MODIFIER "d"
 #define UINT64_FORMAT "%" INT64_MODIFIER "u"
diff --git a/src/include/datatype/timestamp.h b/src/include/datatype/timestamp.h
index 6dfaf23cc56..d3450d69a8e 100644
--- a/src/include/datatype/timestamp.h
+++ b/src/include/datatype/timestamp.h
@@ -119,8 +119,8 @@ typedef struct
  * DT_NOBEGIN represents timestamp -infinity; DT_NOEND represents +infinity
  */
 #ifdef HAVE_INT64_TIMESTAMP
-#define DT_NOBEGIN		(-INT64CONST(0x7fffffffffffffff) - 1)
-#define DT_NOEND		(INT64CONST(0x7fffffffffffffff))
+#define DT_NOBEGIN		INT64_MIN
+#define DT_NOEND		INT64_MAX
 #else							/* !HAVE_INT64_TIMESTAMP */
 #ifdef HUGE_VAL
 #define DT_NOBEGIN		(-HUGE_VAL)
diff --git a/src/include/executor/instrument.h b/src/include/executor/instrument.h
index 1c3b2b0ffb1..db9d1e8ff05 100644
--- a/src/include/executor/instrument.h
+++ b/src/include/executor/instrument.h
@@ -38,7 +38,7 @@ typedef enum InstrumentOption
 	INSTRUMENT_TIMER = 1 << 0,	/* needs timer (and row counts) */
 	INSTRUMENT_BUFFERS = 1 << 1,	/* needs buffer usage */
 	INSTRUMENT_ROWS = 1 << 2,	/* needs row count */
-	INSTRUMENT_ALL = 0x7FFFFFFF
+	INSTRUMENT_ALL = INT32_MAX
 } InstrumentOption;
 
 typedef struct Instrumentation
diff --git a/src/include/nodes/parsenodes.h b/src/include/nodes/parsenodes.h
index ec0d0eaa4ac..2893ceff183 100644
--- a/src/include/nodes/parsenodes.h
+++ b/src/include/nodes/parsenodes.h
@@ -587,7 +587,7 @@ typedef enum TableLikeOption
 	CREATE_TABLE_LIKE_INDEXES = 1 << 2,
 	CREATE_TABLE_LIKE_STORAGE = 1 << 3,
 	CREATE_TABLE_LIKE_COMMENTS = 1 << 4,
-	CREATE_TABLE_LIKE_ALL = 0x7FFFFFFF
+	CREATE_TABLE_LIKE_ALL = INT32_MAX
 } TableLikeOption;
 
 /*
diff --git a/src/include/pg_config_manual.h b/src/include/pg_config_manual.h
index 5cfc0ae1e80..d3e9888b7b9 100644
--- a/src/include/pg_config_manual.h
+++ b/src/include/pg_config_manual.h
@@ -48,7 +48,7 @@
 /*
  * Set the upper and lower bounds of sequence values.
  */
-#define SEQ_MAXVALUE	INT64CONST(0x7FFFFFFFFFFFFFFF)
+#define SEQ_MAXVALUE	INT64_MAX
 #define SEQ_MINVALUE	(-SEQ_MAXVALUE)
 
 /*
@@ -185,7 +185,7 @@
  * the older rand() function, which is often different from --- and
  * considerably inferior to --- random().
  */
-#define MAX_RANDOM_VALUE  (0x7FFFFFFF)
+#define MAX_RANDOM_VALUE  INT32_MAX
 
 /*
  * On PPC machines, decide whether to use the mutex hint bit in LWARX
diff --git a/src/include/port/atomics.h b/src/include/port/atomics.h
index 89868b59c3a..99173644a43 100644
--- a/src/include/port/atomics.h
+++ b/src/include/port/atomics.h
@@ -489,7 +489,7 @@ STATIC_IF_INLINE uint64
 pg_atomic_fetch_sub_u64(volatile pg_atomic_uint64 *ptr, int64 sub_)
 {
 	AssertPointerAlignment(ptr, 8);
-	Assert(sub_ != -INT64CONST(0x7FFFFFFFFFFFFFFF) - 1);
+	Assert(sub_ != INT64_MIN);
 	return pg_atomic_fetch_sub_u64_impl(ptr, sub_);
 }
 
@@ -518,7 +518,7 @@ STATIC_IF_INLINE uint64
 pg_atomic_sub_fetch_u64(volatile pg_atomic_uint64 *ptr, int64 sub_)
 {
 	AssertPointerAlignment(ptr, 8);
-	Assert(sub_ != -INT64CONST(0x7FFFFFFFFFFFFFFF) - 1);
+	Assert(sub_ != INT64_MIN);
 	return pg_atomic_sub_fetch_u64_impl(ptr, sub_);
 }
 
diff --git a/src/include/storage/predicate_internals.h b/src/include/storage/predicate_internals.h
index 2aaf58060d5..8ecf923b1fb 100644
--- a/src/include/storage/predicate_internals.h
+++ b/src/include/storage/predicate_internals.h
@@ -33,7 +33,7 @@ typedef uint64 SerCommitSeqNo;
  *	  at that point.  It's earlier than all normal sequence numbers,
  *	  and is only used by recovered prepared transactions
  */
-#define InvalidSerCommitSeqNo		((SerCommitSeqNo) UINT64CONST(0xFFFFFFFFFFFFFFFF))
+#define InvalidSerCommitSeqNo		((SerCommitSeqNo) UINT64_MAX)
 #define RecoverySerCommitSeqNo		((SerCommitSeqNo) 1)
 #define FirstNormalSerCommitSeqNo	((SerCommitSeqNo) 2)
 
diff --git a/src/include/utils/date.h b/src/include/utils/date.h
index b57f4bb3ea2..f07011c3851 100644
--- a/src/include/utils/date.h
+++ b/src/include/utils/date.h
@@ -35,11 +35,9 @@ typedef struct
 
 /*
  * Infinity and minus infinity must be the max and min values of DateADT.
- * We could use INT_MIN and INT_MAX here, but seems better to not assume that
- * int32 == int.
  */
-#define DATEVAL_NOBEGIN		((DateADT) (-0x7fffffff - 1))
-#define DATEVAL_NOEND		((DateADT) 0x7fffffff)
+#define DATEVAL_NOBEGIN		((DateADT) INT32_MIN)
+#define DATEVAL_NOEND		((DateADT) INT32_MAX)
 
 #define DATE_NOBEGIN(j)		((j) = DATEVAL_NOBEGIN)
 #define DATE_IS_NOBEGIN(j)	((j) == DATEVAL_NOBEGIN)