Bruce Momjian 109f079be6 I made the patch that improved the performance of replace_text(). ... The content of the patch is as follows: (1)Create shortcut when subtext was not found. (2)Stop using LEFT and RIGHT macro. In LEFT and RIGHT macro, TEXTPOS is executed by the same content as execution immediately before. The execution frequency of TEXTPOS can be reduced by using text_substring instead of LEFT and RIGHT macro. (3)Add appendStringInfoText, and use it instead of appendStringInfoString. There is an overhead of PG_TEXT_GET_STR when appendStringInfoString is executed by text type. This can be reduced by appendStringInfoText. (4)Reduce execution of TEXTDUP. The effect of the patch that I measured is as follows: - The Data for test was created by 'pgbench -i'. - Test SQL: select replace(aid, '9', 'A') from accounts; - Test results: Linux(CPU: Pentium III, Compiler option: -O2) original: 1.515s patched: 1.250s Atsushi Ogawa		2005-07-04 18:56:44 +00:00
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access	Arrange for the postmaster (and standalone backends, initdb, etc) to	2005-07-04 04:51:52 +00:00
bootstrap	Arrange for the postmaster (and standalone backends, initdb, etc) to	2005-07-04 04:51:52 +00:00
catalog	Arrange for the postmaster (and standalone backends, initdb, etc) to	2005-07-04 04:51:52 +00:00
commands	Arrange for the postmaster (and standalone backends, initdb, etc) to	2005-07-04 04:51:52 +00:00
executor	Replace pg_shadow and pg_group by new role-capable catalogs pg_authid	2005-06-28 05:09:14 +00:00
lib	Replace the use of "0" with "NULL" where appropriate in dllist.c, for	2005-01-18 22:59:32 +00:00
libpq	Arrange for the postmaster (and standalone backends, initdb, etc) to	2005-07-04 04:51:52 +00:00
main	Tag appropriate files for rc3	2004-12-31 22:04:05 +00:00
nodes	Teach planner about some cases where a restriction clause can be	2005-07-02 23:00:42 +00:00
optimizer	Don't try to constant-fold functions returning RECORD. We were never	2005-07-03 21:14:18 +00:00
parser	More cleanup on roles patch. Allow admin option to be inherited through	2005-06-29 20:34:15 +00:00
po	Translation updates	2005-01-17 20:27:44 +00:00
port	Refactor fork()-related code. We need to do various housekeeping tasks	2005-03-10 07:14:03 +00:00
postmaster	Arrange for the postmaster (and standalone backends, initdb, etc) to	2005-07-04 04:51:52 +00:00
regex	Add parentheses to macros when args are used in computations. Without	2005-05-25 21:40:43 +00:00
rewrite	Replace pg_shadow and pg_group by new role-capable catalogs pg_authid	2005-06-28 05:09:14 +00:00
storage	Arrange for the postmaster (and standalone backends, initdb, etc) to	2005-07-04 04:51:52 +00:00
tcop	Arrange for the postmaster (and standalone backends, initdb, etc) to	2005-07-04 04:51:52 +00:00
utils	I made the patch that improved the performance of replace_text().	2005-07-04 18:56:44 +00:00
Makefile	On Windows, set the postmaster executable's stack size to 4MB, so that	2005-01-26 21:55:26 +00:00
nls.mk	New translation	2005-01-09 17:10:29 +00:00