mirror of
https://github.com/postgres/postgres.git
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the patch include:
- rename ichar() to chr() (discussed with Tom)
- add docs for oracle compatible routines:
btrim()
ascii()
chr()
repeat()
- fix bug with timezone in to_char()
- all to_char() variants return NULL instead textin("")
if it's needful.
The contrib/odbc is without changes and contains same routines as main
tree ... because I not sure how plans are Thomas with this :-)
Karel
---------------------------------------------------------------------------
This effectively one line patch should fix the fact that
foreign key definitions in create table were erroring if
a primary key was defined. I was using the columns
list to get the columns of the table for comparison, but
it got reused as a temporary list inside the primary key
stuff.
Stephan Szabo
This commit is contained in:
Bruce Momjian
parent
516aac42f9
commit
ebdfac3bb1
@ -356,10 +356,16 @@
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</thead>
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<tbody>
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<row>
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<entry>to_ascii(text [,name|int])</entry>
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<entry>ascii(text)</entry>
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<entry>int</entry>
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<entry>returns the decimal representation of the first character from text</entry>
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<entry>ascii('x')</entry>
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</row>
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<row>
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<entry>btrim(text,set)</entry>
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<entry>text</entry>
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<entry>convert text from multibyte encoding to ASCII</entry>
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<entry>to_ascii('Karel')</entry>
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<entry>both (left and right) trim characters from text</entry>
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<entry>btrim('xxxtrimxxx','x')</entry>
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</row>
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<row>
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<entry>char(text)</entry>
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@ -374,6 +380,12 @@
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<entry>char(varchar 'varchar string')</entry>
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</row>
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<row>
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<row>
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<entry>chr(int)</entry>
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<entry>text</entry>
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<entry>returns the character having the binary equivalent to int</entry>
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<entry>chr(65)</entry>
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</row>
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<entry>initcap(text)</entry>
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<entry>text</entry>
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<entry>first letter of each word to upper case</entry>
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@ -392,10 +404,10 @@
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<entry>ltrim('xxxxtrim','x')</entry>
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</row>
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<row>
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<entry>textpos(text,text)</entry>
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<entry>repeat(text,int)</entry>
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<entry>text</entry>
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<entry>locate specified substring</entry>
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<entry>position('high','ig')</entry>
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<entry>repeat text by int</entry>
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<entry>repeat('Pg', 4)</entry>
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</row>
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<row>
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<entry>rpad(text,int,text)</entry>
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@ -427,12 +439,24 @@
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<entry>convert varchar to text type</entry>
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<entry>text(varchar 'varchar string')</entry>
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</row>
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<row>
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<entry>textpos(text,text)</entry>
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<entry>text</entry>
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<entry>locate specified substring</entry>
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<entry>position('high','ig')</entry>
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</row>
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<row>
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<entry>to_ascii(text [,name|int])</entry>
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<entry>text</entry>
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<entry>convert text from multibyte encoding to ASCII</entry>
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<entry>to_ascii('Karel')</entry>
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</row>
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<row>
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<entry>translate(text,from,to)</entry>
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<entry>text</entry>
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<entry>convert character in string</entry>
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<entry>translate('12345', '1', 'a')</entry>
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</row>
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</row>
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<row>
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<entry>varchar(char)</entry>
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<entry>varchar</entry>
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@ -6,7 +6,7 @@
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* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $Id: analyze.c,v 1.157 2000/09/12 21:07:00 tgl Exp $
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* $Id: analyze.c,v 1.158 2000/09/25 12:58:46 momjian Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -1083,7 +1083,7 @@ transformCreateStmt(ParseState *pstate, CreateStmt *stmt)
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foreach(fkattrs, fkconstraint->fk_attrs) {
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found=0;
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fkattr=lfirst(fkattrs);
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foreach(cols, columns) {
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foreach(cols, stmt->tableElts) {
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col=lfirst(cols);
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if (strcmp(col->colname, fkattr->name)==0) {
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found=1;
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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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* $Header: /cvsroot/pgsql/src/backend/utils/adt/formatting.c,v 1.21 2000/08/29 04:41:47 momjian Exp $
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* $Header: /cvsroot/pgsql/src/backend/utils/adt/formatting.c,v 1.22 2000/09/25 12:58:47 momjian Exp $
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*
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*
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* Portions Copyright (c) 1999-2000, PostgreSQL, Inc
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@ -1742,7 +1742,7 @@ dch_time(int arg, char *inout, int suf, int flag, FormatNode *node)
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break;
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case DCH_tz:
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case DCH_TZ:
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if (flag == TO_CHAR)
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if (flag == TO_CHAR && tzn)
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{
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int siz = strlen(tzn);
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@ -2452,7 +2452,7 @@ timestamp_to_char(PG_FUNCTION_ARGS)
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len = VARSIZE(fmt) - VARHDRSZ;
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if (len <= 0 || TIMESTAMP_NOT_FINITE(dt))
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return DirectFunctionCall1(textin, CStringGetDatum(""));
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PG_RETURN_NULL();
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ZERO_tm(tm);
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tzn = NULL;
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@ -2552,7 +2552,12 @@ timestamp_to_char(PG_FUNCTION_ARGS)
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* needs, now it must be re-allocate to result real size
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* ----------
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*/
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len = strlen(VARDATA(result));
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if (!(len = strlen(VARDATA(result))))
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{
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pfree(result);
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PG_RETURN_NULL();
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}
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result_tmp = result;
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result = (text *) palloc(len + 1 + VARHDRSZ);
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@ -4017,12 +4022,17 @@ do { \
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if (flag) \
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pfree(format); \
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\
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/* ---------- \
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/* ---------- \
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* for result is allocated max memory, which current format-picture\
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* needs, now it must be re-allocate to result real size \
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* ---------- \
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*/ \
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len = strlen(VARDATA(result)); \
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if (!(len = strlen(VARDATA(result)))) \
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{ \
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pfree(result); \
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PG_RETURN_NULL(); \
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} \
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\
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result_tmp = result; \
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result = (text *) palloc( len + 1 + VARHDRSZ); \
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\
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@ -1,7 +1,7 @@
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/*
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* Edmund Mergl <E.Mergl@bawue.de>
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*
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* $Header: /cvsroot/pgsql/src/backend/utils/adt/oracle_compat.c,v 1.27 2000/07/06 05:48:11 tgl Exp $
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* $Header: /cvsroot/pgsql/src/backend/utils/adt/oracle_compat.c,v 1.28 2000/09/25 12:58:47 momjian Exp $
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*
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*/
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@ -515,6 +515,20 @@ translate(PG_FUNCTION_ARGS)
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PG_RETURN_TEXT_P(result);
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}
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/********************************************************************
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*
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* ascii
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*
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* Syntax:
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*
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* int ascii(text string)
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*
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* Purpose:
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*
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* Returns the decimal representation of the first character from
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* string.
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*
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********************************************************************/
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Datum
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ascii(PG_FUNCTION_ARGS)
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@ -527,12 +541,25 @@ ascii(PG_FUNCTION_ARGS)
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PG_RETURN_INT32((int32) *((unsigned char *) VARDATA(string)));
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}
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/********************************************************************
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*
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* chr
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*
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* Syntax:
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*
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* text chr(int val)
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*
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* Purpose:
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*
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* Returns the character having the binary equivalent to val
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*
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********************************************************************/
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Datum
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ichar(PG_FUNCTION_ARGS)
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chr(PG_FUNCTION_ARGS)
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{
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int32 cvalue = PG_GETARG_INT32(0);
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text *result;
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int32 cvalue = PG_GETARG_INT32(0);
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text *result;
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result = (text *) palloc(VARHDRSZ + 1);
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VARATT_SIZEP(result) = VARHDRSZ + 1;
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@ -541,17 +568,30 @@ ichar(PG_FUNCTION_ARGS)
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PG_RETURN_TEXT_P(result);
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}
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/********************************************************************
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*
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* repeat
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*
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* Syntax:
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*
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* text repeat(text string, int val)
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*
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* Purpose:
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*
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* Repeat string by val.
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*
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********************************************************************/
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Datum
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repeat(PG_FUNCTION_ARGS)
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{
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text *string = PG_GETARG_TEXT_P(0);
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int32 count = PG_GETARG_INT32(1);
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text *result;
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int slen,
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tlen;
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int i;
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char *cp;
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text *string = PG_GETARG_TEXT_P(0);
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int32 count = PG_GETARG_INT32(1);
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text *result;
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int slen,
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tlen;
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int i;
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char *cp;
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if (count < 0)
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count = 0;
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@ -7,7 +7,7 @@
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* Portions Copyright (c) 1996-2000, PostgreSQL, Inc
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $Id: pg_proc.h,v 1.167 2000/09/19 18:18:01 petere Exp $
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* $Id: pg_proc.h,v 1.168 2000/09/25 12:58:47 momjian Exp $
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*
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* NOTES
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* The script catalog/genbki.sh reads this file and generates .bki
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@ -2036,7 +2036,7 @@ DESCR("convert int4 to varchar");
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DATA(insert OID = 1620 ( ascii PGUID 12 f t t t 1 f 23 "25" 100 0 0 100 ascii - ));
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DESCR("convert first char to int4");
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DATA(insert OID = 1621 ( ichar PGUID 12 f t t t 1 f 25 "23" 100 0 0 100 ichar - ));
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DATA(insert OID = 1621 ( chr PGUID 12 f t t t 1 f 25 "23" 100 0 0 100 chr - ));
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DESCR("convert int4 to char");
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DATA(insert OID = 1622 ( repeat PGUID 12 f t t t 2 f 25 "25 23" 100 0 0 100 repeat - ));
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DESCR("replicate string int4 times");
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