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Clean up references to SQL92

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In most cases, these were just references to the SQL standard in
general.  In a few cases, a contrast was made between SQL92 and later
standards -- those have been kept unchanged.
This commit is contained in:
Peter Eisentraut
2013-04-20 11:04:41 -04:00
parent 6e481ebff6
commit cc26ea9fe2
25 changed files with 65 additions and 67 deletions
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12
src/backend/utils/adt/varlena.c
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@ -720,18 +720,18 @@ charlen_to_bytelen(const char *p, int n)
* - string length
*
* If the starting position is zero or less, then return from the start of the string
* adjusting the length to be consistent with the "negative start" per SQL92.
* adjusting the length to be consistent with the "negative start" per SQL.
* If the length is less than zero, return the remaining string.
*
* Added multibyte support.
* - Tatsuo Ishii 1998-4-21
* Changed behavior if starting position is less than one to conform to SQL92 behavior.
* Changed behavior if starting position is less than one to conform to SQL behavior.
* Formerly returned the entire string; now returns a portion.
* - Thomas Lockhart 1998-12-10
* Now uses faster TOAST-slicing interface
* - John Gray 2002-02-22
* Remove "#ifdef MULTIBYTE" and test for encoding_max_length instead. Change
* behaviors conflicting with SQL92 to meet SQL92 (if E = S + L < S throw
* behaviors conflicting with SQL to meet SQL (if E = S + L < S throw
* error; if E < 1, return '', not entire string). Fixed MB related bug when
* S > LC and < LC + 4 sometimes garbage characters are returned.
* - Joe Conway 2002-08-10
@ -1023,7 +1023,7 @@ text_overlay(text *t1, text *t2, int sp, int sl)
/*
* textpos -
* Return the position of the specified substring.
* Implements the SQL92 POSITION() function.
* Implements the SQL POSITION() function.
* Ref: A Guide To The SQL Standard, Date & Darwen, 1997
* - thomas 1997-07-27
*/
@ -1903,7 +1903,7 @@ bytea_catenate(bytea *t1, bytea *t2)
* - string length (optional)
*
* If the starting position is zero or less, then return from the start of the string
* adjusting the length to be consistent with the "negative start" per SQL92.
* adjusting the length to be consistent with the "negative start" per SQL.
* If the length is less than zero, an ERROR is thrown. If no third argument
* (length) is provided, the length to the end of the string is assumed.
*/
@ -2046,7 +2046,7 @@ bytea_overlay(bytea *t1, bytea *t2, int sp, int sl)
/*
* byteapos -
* Return the position of the specified substring.
* Implements the SQL92 POSITION() function.
* Implements the SQL POSITION() function.
* Cloned from textpos and modified as required.
*/
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