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Reject operator names >= NAMEDATALEN characters. These will not work

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anyway, and in assert-enabled builds you are likely to get an assertion
failure.  Backpatch as far as 7.3; 7.2 seems not to have the problem.
This commit is contained in:
Tom Lane
2005-08-16 00:48:12 +00:00
parent 070a3ad76b
commit 6629bc79f1
1 changed files with 10 additions and 1 deletions
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11
src/backend/parser/scan.l
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@ -24,7 +24,7 @@
* Portions Copyright (c) 1994, Regents of the University of California * Portions Copyright (c) 1994, Regents of the University of California
* *
* IDENTIFICATION * IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/parser/scan.l,v 1.127 2005/06/26 19:16:05 tgl Exp $ * $PostgreSQL: pgsql/src/backend/parser/scan.l,v 1.128 2005/08/16 00:48:12 tgl Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -633,6 +633,15 @@ other .
return yytext[0]; return yytext[0];
} }
/*
* Complain if operator is too long. Unlike the case
* for identifiers, we make this an error not a notice-
* and-truncate, because the odds are we are looking at
* a syntactic mistake anyway.
*/
if (nchars >= NAMEDATALEN)
yyerror("operator too long");
/* Convert "!=" operator to "<>" for compatibility */ /* Convert "!=" operator to "<>" for compatibility */
if (strcmp(yytext, "!=") == 0) if (strcmp(yytext, "!=") == 0)
yylval.str = pstrdup("<>"); yylval.str = pstrdup("<>");