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Implement the width_bucket() function, per SQL2003. This commit only adds

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a variant of the function for the 'numeric' datatype; it would be possible
to add additional variants for other datatypes, but I haven't done so yet.

This commit includes regression tests and minimal documentation; if we
want developers to actually use this function in applications, we'll
probably need to document what it does more fully.
This commit is contained in:
Neil Conway
2004-05-14 21:42:30 +00:00
parent 19a495caaa
commit 0079547bcb
10 changed files with 272 additions and 23 deletions
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3
src/include/utils/errcodes.h
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@ -11,7 +11,7 @@
*
* Copyright (c) 2003, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/include/utils/errcodes.h,v 1.9 2004/05/14 18:04:02 neilc Exp $
* $PostgreSQL: pgsql/src/include/utils/errcodes.h,v 1.10 2004/05/14 21:42:30 neilc Exp $
*
*-------------------------------------------------------------------------
*/
@ -116,6 +116,7 @@
#define ERRCODE_ESCAPE_CHARACTER_CONFLICT MAKE_SQLSTATE('2','2', '0','0','B')
#define ERRCODE_INDICATOR_OVERFLOW MAKE_SQLSTATE('2','2', '0','2','2')
#define ERRCODE_INTERVAL_FIELD_OVERFLOW MAKE_SQLSTATE('2','2', '0','1','5')
#define ERRCODE_INVALID_ARGUMENT_FOR_WIDTH_BUCKET_FUNCTION MAKE_SQLSTATE('2','2', '0', '1', 'G')
#define ERRCODE_INVALID_CHARACTER_VALUE_FOR_CAST MAKE_SQLSTATE('2','2', '0','1','8')
#define ERRCODE_INVALID_DATETIME_FORMAT MAKE_SQLSTATE('2','2', '0','0','7')
#define ERRCODE_INVALID_ESCAPE_CHARACTER MAKE_SQLSTATE('2','2', '0','1','9')