diff options
| author | Tom Lane <tgl@sss.pgh.pa.us> | 2007-01-03 22:39:42 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2007-01-03 22:39:42 +0000 |
| commit | 15888bf0c0d048b462f6e703caba93669e40f0c2 (patch) | |
| tree | 4f627ad6d4e97cec78c79b6d66a4afaf839539b9 /src/include/utils/builtins.h | |
| parent | 34aabc20712723fc8a6a3974b724934ea304eaae (diff) | |
Fix regex_fixed_prefix() to cope reasonably well with regex patterns of the
form '^(foo)$'. Before, these could never be optimized into indexscans.
The recent changes to make psql and pg_dump generate such patterns (for \d
commands and -t and related switches, respectively) therefore represented
a big performance hit for people with large pg_class catalogs, as seen in
recent gripe from Erik Jones. While at it, be more paranoid about
case-sensitivity checking in multibyte encodings, and fix some other
corner cases in which a regex might be interpreted too liberally.
Diffstat (limited to 'src/include/utils/builtins.h')
| -rw-r--r-- | src/include/utils/builtins.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/include/utils/builtins.h b/src/include/utils/builtins.h index b4961f13111..778fbe8fab8 100644 --- a/src/include/utils/builtins.h +++ b/src/include/utils/builtins.h @@ -7,7 +7,7 @@ * Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $PostgreSQL: pgsql/src/include/utils/builtins.h,v 1.267.2.1 2005/11/22 18:23:29 momjian Exp $ + * $PostgreSQL: pgsql/src/include/utils/builtins.h,v 1.267.2.2 2007/01/03 22:39:42 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -456,6 +456,7 @@ extern Datum textregexsubstr(PG_FUNCTION_ARGS); extern Datum textregexreplace_noopt(PG_FUNCTION_ARGS); extern Datum textregexreplace(PG_FUNCTION_ARGS); extern Datum similar_escape(PG_FUNCTION_ARGS); +extern bool regex_flavor_is_basic(void); /* regproc.c */ extern Datum regprocin(PG_FUNCTION_ARGS); |