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Change case-folding of keywords to conform to SQL99 and fix misbehavior

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in Turkish locale.  Keywords are now checked under pure ASCII case-folding
rules ('A'-'Z'->'a'-'z' and nothing else).  However, once a word is
determined not to be a keyword, it will be case-folded under the current
locale, same as before.  See pghackers discussion 20-Feb-01.
This commit is contained in:
Tom Lane
2001-02-21 18:53:47 +00:00
parent 496373e2e4
commit be92ad49e0
6 changed files with 231 additions and 108 deletions
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6
src/backend/utils/adt/ruleutils.c
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@ -3,7 +3,7 @@
* back to source text
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/ruleutils.c,v 1.72 2001/02/14 21:35:05 tgl Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/ruleutils.c,v 1.73 2001/02/21 18:53:47 tgl Exp $
*
* This software is copyrighted by Jan Wieck - Hamburg.
*
@ -2563,8 +2563,8 @@ quote_identifier(char *ident)
* but the parser doesn't provide any easy way to test for whether
* an identifier is safe or not... so be safe not sorry.
*
* Note: ScanKeywordLookup() expects an all-lower-case input, but
* we've already checked we have that.
* Note: ScanKeywordLookup() does case-insensitive comparison,
* but that's fine, since we already know we have all-lower-case.
*/
if (ScanKeywordLookup(ident) != NULL)
safe = false;