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Tom Lane 7225abf00e Fix volatility markings of some contrib I/O functions. ... In general, datatype I/O functions are supposed to be immutable or at worst stable. Some contrib I/O functions were, through oversight, not marked with any volatility property at all, which made them VOLATILE. Since (most of) these functions actually behave immutably, the erroneous marking isn't terribly harmful; but it can be user-visible in certain circumstances, as per a recent bug report from Joe Van Dyk in which a cast to text was disallowed in an expression index definition. To fix, just adjust the declarations in the extension SQL scripts. If we were being very fussy about this, we'd bump the extension version numbers, but that seems like more trouble (for both developers and users) than the problem is worth. A fly in the ointment is that chkpass_in actually is volatile, because of its use of random() to generate a fresh salt when presented with a not-yet-encrypted password. This is bad because of the general assumption that I/O functions aren't volatile: the consequence is that records or arrays containing chkpass elements may have input behavior a bit different from a bare chkpass column. But there seems no way to fix this without breaking existing usage patterns for chkpass, and the consequences of the inconsistency don't seem bad enough to justify that. So for the moment, just document it in a comment. Since we're not bumping version numbers, there seems no harm in back-patching these fixes; at least future installations will get the functions marked correctly.		11 years ago
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data	trgm - Trigram matching for PostgreSQL	22 years ago
expected	Fix contrib/pg_trgm's similarity() function for trigram-free strings.	13 years ago
sql	Fix contrib/pg_trgm's similarity() function for trigram-free strings.	13 years ago
.gitignore	Support "make check" in contrib	15 years ago
Makefile	Convert contrib modules to use the extension facility.	15 years ago
pg_trgm--1.0.sql	Fix volatility markings of some contrib I/O functions.	11 years ago
pg_trgm--unpackaged--1.0.sql	Fix typos in some error messages thrown by extension scripts when fed to psql.	11 years ago
pg_trgm.control	Convert contrib modules to use the extension facility.	15 years ago
trgm.h	pgindent run before PG 9.1 beta 1.	15 years ago
trgm_gin.c	pgindent run before PG 9.1 beta 1.	15 years ago
trgm_gist.c	Remove tabs after spaces in C comments	12 years ago
trgm_op.c	Fix possible buffer overrun in contrib/pg_trgm.	12 years ago