should be it

external/duckdb/third_party/libpg_query/include/utils/datetime.hpp

@@ -0,0 +1,71 @@
+/*-------------------------------------------------------------------------
+ *
+ * datetime.h
+ *	  Definitions for date/time support code.
+ *	  The support code is shared with other date data types,
+ *	   including abstime, reltime, date, and time.
+ *
+ *
+ * Portions Copyright (c) 1996-2015, PostgreSQL Global Development PGGroup
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/utils/datetime.h
+ *
+ *-------------------------------------------------------------------------
+ */
+#pragma once
+
+#include "nodes/nodes.hpp"
+#include "utils/timestamp.hpp"
+
+
+/*
+ * Field types for time decoding.
+ *
+ * Can't have more of these than there are bits in an unsigned int
+ * since these are turned into bit masks during parsing and decoding.
+ *
+ * Furthermore, the values for YEAR, MONTH, DAY, HOUR, MINUTE, SECOND
+ * must be in the range 0..14 so that the associated bitmasks can fit
+ * into the left half of an INTERVAL's typmod value.  Since those bits
+ * are stored in typmods, you can't change them without initdb!
+ */
+
+#define RESERV	0
+#define MONTH	1
+#define YEAR	2
+#define DAY		3
+#define JULIAN	4
+#define TZ		5				/* fixed-offset timezone abbreviation */
+#define DTZ		6				/* fixed-offset timezone abbrev, DST */
+#define DYNTZ	7				/* dynamic timezone abbreviation */
+#define IGNORE_DTF	8
+#define AMPM	9
+#define HOUR	10
+#define MINUTE	11
+#define SECOND	12
+#define MILLISECOND 13
+#define MICROSECOND 14
+#define DOY		15
+#define DOW		16
+#define UNITS	17
+#define ADBC	18
+/* these are only for relative dates */
+#define AGO		19
+#define ABS_BEFORE		20
+#define ABS_AFTER		21
+/* generic fields to help with parsing */
+#define ISODATE 22
+#define ISOTIME 23
+/* these are only for parsing intervals */
+#define WEEK		24
+#define DECADE		25
+#define CENTURY		26
+#define MILLENNIUM	27
+/* hack for parsing two-word timezone specs "MET DST" etc */
+#define DTZMOD	28				/* "DST" as a separate word */
+#define QUARTER		29
+/* reserved for unrecognized string values */
+#define UNKNOWN_FIELD	31
+
+

external/duckdb/third_party/libpg_query/include/utils/timestamp.hpp

@@ -0,0 +1,26 @@
+/*-------------------------------------------------------------------------
+ *
+ * timestamp.h
+ *	  Definitions for the SQL "timestamp" and "interval" types.
+ *
+ * Portions Copyright (c) 1996-2015, PostgreSQL Global Development PGGroup
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * src/include/utils/timestamp.h
+ *
+ *-------------------------------------------------------------------------
+ */
+#pragma once
+
+#include "datatype/timestamp.hpp"
+#include "fmgr.hpp"
+#include "pgtime.hpp"
+
+/* Macros to handle packing and unpacking the typmod field for intervals */
+#define INTERVAL_FULL_RANGE (0x7FFF)
+#define INTERVAL_RANGE_MASK (0x7FFF)
+#define INTERVAL_FULL_PRECISION (0xFFFF)
+#define INTERVAL_PRECISION_MASK (0xFFFF)
+#define INTERVAL_TYPMOD(p,r) ((((r) & INTERVAL_RANGE_MASK) << 16) | ((p) & INTERVAL_PRECISION_MASK))
+#define INTERVAL_PRECISION(t) ((t) & INTERVAL_PRECISION_MASK)
+#define INTERVAL_RANGE(t) (((t) >> 16) & INTERVAL_RANGE_MASK)