Fix to_timestamp() to not require upper/lower case matching for meridian
designations (AM/PM). Also separate out matching of a meridian with periods (e.g. A.M.) and with those without. Do the same for AD/BC. Brendan Jurd
This commit is contained in:
parent
b75b66332a
commit
65b731bd9d
@ -1,4 +1,4 @@
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<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.471 2009/02/06 21:15:11 tgl Exp $ -->
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<!-- $PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.472 2009/02/07 14:16:45 momjian Exp $ -->
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<chapter id="functions">
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<title>Functions and Operators</title>
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@ -4867,14 +4867,14 @@ SELECT SUBSTRING('XY1234Z', 'Y*?([0-9]{1,3})');
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<entry>seconds past midnight (0-86399)</entry>
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</row>
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<row>
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<entry><literal>AM</literal> or <literal>A.M.</literal> or
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<literal>PM</literal> or <literal>P.M.</literal></entry>
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<entry>meridian indicator (uppercase)</entry>
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<entry><literal>AM</literal>, <literal>am</literal>,
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<literal>PM</literal> or <literal>pm</literal></entry>
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<entry>meridiem indicator (without periods)</entry>
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</row>
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<row>
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<entry><literal>am</literal> or <literal>a.m.</literal> or
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<literal>pm</literal> or <literal>p.m.</literal></entry>
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<entry>meridian indicator (lowercase)</entry>
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<entry><literal>A.M.</literal>, <literal>a.m.</literal>,
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<literal>P.M.</literal> or <literal>p.m.</literal></entry>
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<entry>meridiem indicator (with periods)</entry>
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</row>
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<row>
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<entry><literal>Y,YYY</literal></entry>
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@ -4913,14 +4913,14 @@ SELECT SUBSTRING('XY1234Z', 'Y*?([0-9]{1,3})');
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<entry>last digit of ISO year</entry>
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</row>
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<row>
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<entry><literal>BC</literal> or <literal>B.C.</literal> or
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<literal>AD</literal> or <literal>A.D.</literal></entry>
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<entry>era indicator (uppercase)</entry>
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<entry><literal>BC</literal>, <literal>bc</literal>,
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<literal>AD</literal> or <literal>ad</literal></entry>
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<entry>era indicator (without periods)</entry>
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</row>
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<row>
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<entry><literal>bc</literal> or <literal>b.c.</literal> or
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<literal>ad</literal> or <literal>a.d.</literal></entry>
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<entry>era indicator (lowercase)</entry>
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<entry><literal>B.C.</literal>, <literal>b.c.</literal>,
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<literal>A.D.</literal> or <literal>a.d.</literal></entry>
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<entry>era indicator (with periods)</entry>
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</row>
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<row>
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<entry><literal>MONTH</literal></entry>
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@ -1,7 +1,7 @@
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/* -----------------------------------------------------------------------
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* formatting.c
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*
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* $PostgreSQL: pgsql/src/backend/utils/adt/formatting.c,v 1.153 2009/01/01 17:23:49 momjian Exp $
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* $PostgreSQL: pgsql/src/backend/utils/adt/formatting.c,v 1.154 2009/02/07 14:16:45 momjian Exp $
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*
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*
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* Portions Copyright (c) 1999-2009, PostgreSQL Global Development Group
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@ -59,14 +59,9 @@
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* -----------------------------------------------------------------------
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*/
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/* ----------
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* UnComment me for DEBUG
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* ----------
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*/
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/***
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#define DEBUG_TO_FROM_CHAR
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#ifdef DEBUG_TO_FROM_CHAR
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#define DEBUG_elog_output DEBUG3
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***/
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#endif
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#include "postgres.h"
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@ -184,6 +179,9 @@ struct FormatNode
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#define SUFFTYPE_PREFIX 1
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#define SUFFTYPE_POSTFIX 2
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#define CLOCK_24_HOUR 0
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#define CLOCK_12_HOUR 1
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/* ----------
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* Full months
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@ -206,7 +204,6 @@ static char *days_short[] = {
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* years up one. For interval years, we just return the year.
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*/
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#define ADJUST_YEAR(year, is_interval) ((is_interval) ? (year) : ((year) <= 0 ? -((year) - 1) : (year)))
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#define BC_STR_ORIG " BC"
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#define A_D_STR "A.D."
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#define a_d_STR "a.d."
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@ -218,6 +215,18 @@ static char *days_short[] = {
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#define BC_STR "BC"
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#define bc_STR "bc"
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/*
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* AD / BC strings for seq_search.
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*
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* These are given in two variants, a long form with periods and a standard
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* form without.
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*
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* The array is laid out such that matches for AD have an even index, and
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* matches for BC have an odd index. So the boolean value for BC is given by
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* taking the array index of the match, modulo 2.
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*/
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static char *adbc_strings[] = {ad_STR, bc_STR, AD_STR, BC_STR, NULL};
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static char *adbc_strings_long[] = {a_d_STR, b_c_STR, A_D_STR, B_C_STR, NULL};
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/* ----------
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* AM / PM
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@ -233,6 +242,18 @@ static char *days_short[] = {
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#define PM_STR "PM"
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#define pm_STR "pm"
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/*
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* AM / PM strings for seq_search.
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*
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* These are given in two variants, a long form with periods and a standard
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* form without.
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*
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* The array is laid out such that matches for AM have an even index, and
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* matches for PM have an odd index. So the boolean value for PM is given by
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* taking the array index of the match, modulo 2.
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*/
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static char *ampm_strings[] = {am_STR, pm_STR, AM_STR, PM_STR, NULL};
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static char *ampm_strings_long[] = {a_m_STR, p_m_STR, A_M_STR, P_M_STR, NULL};
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/* ----------
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* Months in roman-numeral
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@ -265,17 +286,20 @@ static char *numth[] = {"st", "nd", "rd", "th", NULL};
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* Flags & Options:
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* ----------
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*/
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#define ONE_UPPER 1 /* Name */
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#define ALL_UPPER 2 /* NAME */
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#define ALL_LOWER 3 /* name */
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#define ONE_UPPER 1 /* Name */
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#define ALL_UPPER 2 /* NAME */
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#define ALL_LOWER 3 /* name */
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#define FULL_SIZ 0
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#define FULL_SIZ 0
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#define MAX_MON_LEN 3
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#define MAX_DY_LEN 3
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#define MAX_MONTH_LEN 9
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#define MAX_MON_LEN 3
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#define MAX_DAY_LEN 9
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#define MAX_DY_LEN 3
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#define MAX_RM_LEN 4
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#define TH_UPPER 1
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#define TH_LOWER 2
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#define TH_UPPER 1
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#define TH_LOWER 2
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/* ----------
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* Number description struct
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@ -383,7 +407,6 @@ typedef struct
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{
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FromCharDateMode mode;
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int hh,
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am,
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pm,
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mi,
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ss,
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@ -400,7 +423,8 @@ typedef struct
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cc,
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j,
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us,
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yysz; /* is it YY or YYYY ? */
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yysz, /* is it YY or YYYY ? */
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clock; /* 12 or 24 hour clock? */
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} TmFromChar;
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#define ZERO_tmfc(_X) memset(_X, 0, sizeof(TmFromChar))
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@ -411,11 +435,11 @@ typedef struct
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*/
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#ifdef DEBUG_TO_FROM_CHAR
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#define DEBUG_TMFC(_X) \
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elog(DEBUG_elog_output, "TMFC:\nmode %d\nhh %d\nam %d\npm %d\nmi %d\nss %d\nssss %d\nd %d\ndd %d\nddd %d\nmm %d\nms: %d\nyear %d\nbc %d\nww %d\nw %d\ncc %d\nj %d\nus: %d\nyysz: %d", \
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(_X)->mode, (_X)->hh, (_X)->am, (_X)->pm, (_X)->mi, (_X)->ss, \
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(_X)->ssss, (_X)->d, (_X)->dd, (_X)->ddd, (_X)->mm, (_X)->ms, \
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(_X)->year, (_X)->bc, (_X)->ww, (_X)->w, (_X)->cc, (_X)->j, \
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(_X)->us, (_X)->yysz);
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elog(DEBUG_elog_output, "TMFC:\nmode %d\nhh %d\npm %d\nmi %d\nss %d\nssss %d\nd %d\ndd %d\nddd %d\nmm %d\nms: %d\nyear %d\nbc %d\nww %d\nw %d\ncc %d\nj %d\nus: %d\nyysz: %d\nclock: %d", \
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(_X)->mode, (_X)->hh, (_X)->pm, (_X)->mi, (_X)->ss, (_X)->ssss, \
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(_X)->d, (_X)->dd, (_X)->ddd, (_X)->mm, (_X)->ms, (_X)->year, \
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(_X)->bc, (_X)->ww, (_X)->w, (_X)->cc, (_X)->j, (_X)->us, \
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(_X)->yysz, (_X)->clock);
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#define DEBUG_TM(_X) \
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elog(DEBUG_elog_output, "TM:\nsec %d\nyear %d\nmin %d\nwday %d\nhour %d\nyday %d\nmday %d\nnisdst %d\nmon %d\n",\
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(_X)->tm_sec, (_X)->tm_year,\
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@ -1749,10 +1773,6 @@ strdigits_len(char *str)
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return len;
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}
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#define AMPM_ERROR ereport(ERROR, \
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(errcode(ERRCODE_INVALID_DATETIME_FORMAT), \
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errmsg("invalid AM/PM string")));
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/*
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* Set the date mode of a from-char conversion.
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*
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@ -1818,7 +1838,12 @@ static int
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from_char_parse_int_len(int *dest, char **src, const int len, FormatNode *node)
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{
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long result;
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char copy[DCH_MAX_ITEM_SIZ + 1];
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char *init = *src;
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int used;
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Assert(len <= DCH_MAX_ITEM_SIZ);
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used = (int) strlcpy(copy, *src, len + 1);
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if (S_FM(node->suffix) || is_next_separator(node))
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{
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@ -1836,34 +1861,28 @@ from_char_parse_int_len(int *dest, char **src, const int len, FormatNode *node)
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* We need to pull exactly the number of characters given in 'len' out
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* of the string, and convert those.
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*/
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char first[DCH_MAX_ITEM_SIZ + 1];
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char *last;
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int used;
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Assert(len <= DCH_MAX_ITEM_SIZ);
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strncpy(first, init, len);
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first[len] = '\0';
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if (strlen(first) < len)
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if (used < len)
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ereport(ERROR,
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(errcode(ERRCODE_INVALID_DATETIME_FORMAT),
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errmsg("source string too short for \"%s\" formatting field",
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node->key->name),
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errdetail("Field requires %d characters, but only %d "
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"remain.",
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len, (int) strlen(first)),
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len, used),
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errhint("If your source string is not fixed-width, try "
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"using the \"FM\" modifier.")));
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errno = 0;
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result = strtol(first, &last, 10);
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used = last - first;
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result = strtol(copy, &last, 10);
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used = last - copy;
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if (used > 0 && used < len)
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ereport(ERROR,
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(errcode(ERRCODE_INVALID_DATETIME_FORMAT),
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errmsg("invalid value for \"%s\" in source string",
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node->key->name),
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errmsg("invalid value \"%s\" for \"%s\"",
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copy, node->key->name),
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errdetail("Field requires %d characters, but only %d "
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"could be parsed.", len, used),
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errhint("If your source string is not fixed-width, try "
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@ -1875,8 +1894,8 @@ from_char_parse_int_len(int *dest, char **src, const int len, FormatNode *node)
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if (*src == init)
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ereport(ERROR,
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(errcode(ERRCODE_INVALID_DATETIME_FORMAT),
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errmsg("invalid value for \"%s\" in source string",
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node->key->name),
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errmsg("invalid value \"%s\" for \"%s\"",
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copy, node->key->name),
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errdetail("Value must be an integer.")));
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if (errno == ERANGE || result < INT_MIN || result > INT_MAX)
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@ -1968,11 +1987,8 @@ seq_search(char *name, char **array, int type, int max, int *len)
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}
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#ifdef DEBUG_TO_FROM_CHAR
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/*
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* elog(DEBUG_elog_output, "N: %c, P: %c, A: %s (%s)", *n, *p, *a,
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* name);
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*/
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elog(DEBUG_elog_output, "N: %c, P: %c, A: %s (%s)",
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*n, *p, *a, name);
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#endif
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if (*n != *p)
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break;
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@ -1996,18 +2012,23 @@ static int
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from_char_seq_search(int *dest, char **src, char **array, int type, int max,
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FormatNode *node)
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{
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int result;
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int len;
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result = seq_search(*src, array, type, max, &len);
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*dest = seq_search(*src, array, type, max, &len);
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if (len <= 0)
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{
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char copy[DCH_MAX_ITEM_SIZ + 1];
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Assert(max <= DCH_MAX_ITEM_SIZ);
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strlcpy(copy, *src, max + 1);
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ereport(ERROR,
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(errcode(ERRCODE_INVALID_DATETIME_FORMAT),
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errmsg("invalid value for \"%s\" in source string",
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node->key->name),
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errmsg("invalid value \"%s\" for \"%s\"",
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copy, node->key->name),
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errdetail("The given value did not match any of the allowed "
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"values for this field.")));
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from_char_set_int(dest, result, node);
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}
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*src += len;
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return len;
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}
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@ -2476,7 +2497,8 @@ DCH_from_char(FormatNode *node, char *in, TmFromChar *out)
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{
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FormatNode *n;
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char *s;
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int len;
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int len,
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value;
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bool fx_mode = false;
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for (n = node, s = in; n->type != NODE_TYPE_END && *s != '\0'; n++)
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@ -2502,46 +2524,28 @@ DCH_from_char(FormatNode *node, char *in, TmFromChar *out)
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break;
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case DCH_A_M:
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case DCH_P_M:
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if (strncmp(s, P_M_STR, n->key->len) == 0)
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out->pm = TRUE;
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else if (strncmp(s, A_M_STR, n->key->len) == 0)
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out->am = TRUE;
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else
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AMPM_ERROR;
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s += strlen(P_M_STR);
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case DCH_a_m:
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case DCH_p_m:
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from_char_seq_search(&value, &s, ampm_strings_long,
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ALL_UPPER, n->key->len, n);
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from_char_set_int(&out->pm, value % 2, n);
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out->clock = CLOCK_12_HOUR;
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break;
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case DCH_AM:
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case DCH_PM:
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if (strncmp(s, PM_STR, n->key->len) == 0)
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out->pm = TRUE;
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else if (strncmp(s, AM_STR, n->key->len) == 0)
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out->am = TRUE;
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else
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AMPM_ERROR;
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s += strlen(PM_STR);
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break;
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case DCH_a_m:
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case DCH_p_m:
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if (strncmp(s, p_m_STR, n->key->len) == 0)
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out->pm = TRUE;
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else if (strncmp(s, a_m_STR, n->key->len) == 0)
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out->am = TRUE;
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else
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AMPM_ERROR;
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s += strlen(p_m_STR);
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break;
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case DCH_am:
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case DCH_pm:
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if (strncmp(s, pm_STR, n->key->len) == 0)
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out->pm = TRUE;
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else if (strncmp(s, am_STR, n->key->len) == 0)
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out->am = TRUE;
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else
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AMPM_ERROR;
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s += strlen(pm_STR);
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from_char_seq_search(&value, &s, ampm_strings,
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ALL_UPPER, n->key->len, n);
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from_char_set_int(&out->pm, value % 2, n);
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out->clock = CLOCK_12_HOUR;
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break;
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case DCH_HH:
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case DCH_HH12:
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from_char_parse_int_len(&out->hh, &s, 2, n);
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out->clock = CLOCK_12_HOUR;
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s += SKIP_THth(n->suffix);
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break;
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case DCH_HH24:
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from_char_parse_int_len(&out->hh, &s, 2, n);
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s += SKIP_THth(n->suffix);
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@ -2587,41 +2591,33 @@ DCH_from_char(FormatNode *node, char *in, TmFromChar *out)
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errmsg("\"TZ\"/\"tz\" format patterns are not supported in to_date")));
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case DCH_A_D:
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case DCH_B_C:
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if (strncmp(s, B_C_STR, n->key->len) == 0)
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out->bc = TRUE;
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s += n->key->len;
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case DCH_a_d:
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case DCH_b_c:
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from_char_seq_search(&value, &s, adbc_strings_long,
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ALL_UPPER, n->key->len, n);
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from_char_set_int(&out->bc, value % 2, n);
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break;
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case DCH_AD:
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case DCH_BC:
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if (strncmp(s, BC_STR, n->key->len) == 0)
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out->bc = TRUE;
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s += n->key->len;
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break;
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case DCH_a_d:
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case DCH_b_c:
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if (strncmp(s, b_c_STR, n->key->len) == 0)
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out->bc = TRUE;
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s += n->key->len;
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break;
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case DCH_ad:
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case DCH_bc:
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if (strncmp(s, bc_STR, n->key->len) == 0)
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out->bc = TRUE;
|
||||
s += n->key->len;
|
||||
from_char_seq_search(&value, &s, adbc_strings,
|
||||
ALL_UPPER, n->key->len, n);
|
||||
from_char_set_int(&out->bc, value % 2, n);
|
||||
break;
|
||||
case DCH_MONTH:
|
||||
case DCH_Month:
|
||||
case DCH_month:
|
||||
from_char_seq_search(&out->mm, &s, months_full, ONE_UPPER,
|
||||
FULL_SIZ, n);
|
||||
out->mm++;
|
||||
from_char_seq_search(&value, &s, months_full, ONE_UPPER,
|
||||
MAX_MONTH_LEN, n);
|
||||
from_char_set_int(&out->mm, value + 1, n);
|
||||
break;
|
||||
case DCH_MON:
|
||||
case DCH_Mon:
|
||||
case DCH_mon:
|
||||
from_char_seq_search(&out->mm, &s, months, ONE_UPPER,
|
||||
from_char_seq_search(&value, &s, months, ONE_UPPER,
|
||||
MAX_MON_LEN, n);
|
||||
out->mm++;
|
||||
from_char_set_int(&out->mm, value + 1, n);
|
||||
break;
|
||||
case DCH_MM:
|
||||
from_char_parse_int(&out->mm, &s, n);
|
||||
@ -2630,14 +2626,16 @@ DCH_from_char(FormatNode *node, char *in, TmFromChar *out)
|
||||
case DCH_DAY:
|
||||
case DCH_Day:
|
||||
case DCH_day:
|
||||
from_char_seq_search(&out->d, &s, days, ONE_UPPER,
|
||||
FULL_SIZ, n);
|
||||
from_char_seq_search(&value, &s, days, ONE_UPPER,
|
||||
MAX_DAY_LEN, n);
|
||||
from_char_set_int(&out->d, value, n);
|
||||
break;
|
||||
case DCH_DY:
|
||||
case DCH_Dy:
|
||||
case DCH_dy:
|
||||
from_char_seq_search(&out->d, &s, days, ONE_UPPER,
|
||||
from_char_seq_search(&value, &s, days, ONE_UPPER,
|
||||
MAX_DY_LEN, n);
|
||||
from_char_set_int(&out->d, value, n);
|
||||
break;
|
||||
case DCH_DDD:
|
||||
from_char_parse_int(&out->ddd, &s, n);
|
||||
@ -2743,14 +2741,14 @@ DCH_from_char(FormatNode *node, char *in, TmFromChar *out)
|
||||
s += SKIP_THth(n->suffix);
|
||||
break;
|
||||
case DCH_RM:
|
||||
from_char_seq_search(&out->mm, &s, rm_months_upper,
|
||||
ALL_UPPER, FULL_SIZ, n);
|
||||
out->mm = 12 - out->mm;
|
||||
from_char_seq_search(&value, &s, rm_months_upper,
|
||||
ALL_UPPER, MAX_RM_LEN, n);
|
||||
from_char_set_int(&out->mm, 12 - value, n);
|
||||
break;
|
||||
case DCH_rm:
|
||||
from_char_seq_search(&out->mm, &s, rm_months_lower,
|
||||
ALL_LOWER, FULL_SIZ, n);
|
||||
out->mm = 12 - out->mm;
|
||||
from_char_seq_search(&value, &s, rm_months_lower,
|
||||
ALL_LOWER, MAX_RM_LEN, n);
|
||||
from_char_set_int(&out->mm, 12 - value, n);
|
||||
break;
|
||||
case DCH_W:
|
||||
from_char_parse_int(&out->w, &s, n);
|
||||
@ -3202,17 +3200,18 @@ do_to_timestamp(text *date_txt, text *fmt,
|
||||
if (tmfc.hh)
|
||||
tm->tm_hour = tmfc.hh;
|
||||
|
||||
if (tmfc.pm || tmfc.am)
|
||||
if (tmfc.clock == CLOCK_12_HOUR)
|
||||
{
|
||||
if (tm->tm_hour < 1 || tm->tm_hour > 12)
|
||||
ereport(ERROR,
|
||||
(errcode(ERRCODE_INVALID_DATETIME_FORMAT),
|
||||
errmsg("AM/PM hour must be between 1 and 12")));
|
||||
errmsg("hour \"%d\" is invalid for the 12-hour clock",
|
||||
tm->tm_hour),
|
||||
errhint("Use the 24-hour clock, or give an hour between 1 and 12.")));
|
||||
|
||||
if (tmfc.pm && tm->tm_hour < 12)
|
||||
tm->tm_hour += 12;
|
||||
|
||||
else if (tmfc.am && tm->tm_hour == 12)
|
||||
else if (!tmfc.pm && tm->tm_hour == 12)
|
||||
tm->tm_hour = 0;
|
||||
}
|
||||
|
||||
|
@ -2740,13 +2740,13 @@ SELECT '' AS to_timestamp_5, to_timestamp('1,582nd VIII 21', 'Y,YYYth FMRM DD');
|
||||
(1 row)
|
||||
|
||||
SELECT '' AS to_timestamp_6, to_timestamp('15 "text between quote marks" 98 54 45',
|
||||
E'HH "\\text between quote marks\\"" YY MI SS');
|
||||
E'HH24 "\\text between quote marks\\"" YY MI SS');
|
||||
to_timestamp_6 | to_timestamp
|
||||
----------------+------------------------------
|
||||
| Thu Jan 01 15:54:45 1998 PST
|
||||
(1 row)
|
||||
|
||||
SELECT '' AS to_timestamp_7, to_timestamp('05121445482000', 'MMDDHHMISSYYYY');
|
||||
SELECT '' AS to_timestamp_7, to_timestamp('05121445482000', 'MMDDHH24MISSYYYY');
|
||||
to_timestamp_7 | to_timestamp
|
||||
----------------+------------------------------
|
||||
| Fri May 12 14:45:48 2000 PDT
|
||||
@ -2759,7 +2759,7 @@ SELECT '' AS to_timestamp_8, to_timestamp('2000January09Sunday', 'YYYYFMMonthDDF
|
||||
(1 row)
|
||||
|
||||
SELECT '' AS to_timestamp_9, to_timestamp('97/Feb/16', 'YYMonDD');
|
||||
ERROR: invalid value for "Mon" in source string
|
||||
ERROR: invalid value "/Fe" for "Mon"
|
||||
DETAIL: The given value did not match any of the allowed values for this field.
|
||||
SELECT '' AS to_timestamp_10, to_timestamp('19971116', 'YYYYMMDD');
|
||||
to_timestamp_10 | to_timestamp
|
||||
@ -2847,7 +2847,7 @@ DETAIL: Field requires 2 characters, but only 1 remain.
|
||||
HINT: If your source string is not fixed-width, try using the "FM" modifier.
|
||||
-- Insufficient digit characters for a single node:
|
||||
SELECT '' AS to_timestamp_24, to_timestamp('19971)24', 'YYYYMMDD');
|
||||
ERROR: invalid value for "MM" in source string
|
||||
ERROR: invalid value "1)" for "MM"
|
||||
DETAIL: Field requires 2 characters, but only 1 could be parsed.
|
||||
HINT: If your source string is not fixed-width, try using the "FM" modifier.
|
||||
-- Value clobbering:
|
||||
@ -2856,7 +2856,7 @@ ERROR: conflicting values for "Mon" field in formatting string
|
||||
DETAIL: This value contradicts a previous setting for the same field type.
|
||||
-- Non-numeric input:
|
||||
SELECT '' AS to_timestamp_26, to_timestamp('199711xy', 'YYYYMMDD');
|
||||
ERROR: invalid value for "DD" in source string
|
||||
ERROR: invalid value "xy" for "DD"
|
||||
DETAIL: Value must be an integer.
|
||||
-- Input that doesn't fit in an int:
|
||||
SELECT '' AS to_timestamp_27, to_timestamp('10000000000', 'FMYYYY');
|
||||
|
@ -391,9 +391,9 @@ SELECT '' AS to_timestamp_4, to_timestamp('My birthday-> Year: 1976, Month: May,
|
||||
SELECT '' AS to_timestamp_5, to_timestamp('1,582nd VIII 21', 'Y,YYYth FMRM DD');
|
||||
|
||||
SELECT '' AS to_timestamp_6, to_timestamp('15 "text between quote marks" 98 54 45',
|
||||
E'HH "\\text between quote marks\\"" YY MI SS');
|
||||
E'HH24 "\\text between quote marks\\"" YY MI SS');
|
||||
|
||||
SELECT '' AS to_timestamp_7, to_timestamp('05121445482000', 'MMDDHHMISSYYYY');
|
||||
SELECT '' AS to_timestamp_7, to_timestamp('05121445482000', 'MMDDHH24MISSYYYY');
|
||||
|
||||
SELECT '' AS to_timestamp_8, to_timestamp('2000January09Sunday', 'YYYYFMMonthDDFMDay');
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user