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2019 Commits

Author SHA1 Message Date
Bruce Momjian
d244df95db More optimizer speedups. 1999-02-11 14:59:09 +00:00
Bruce Momjian
129543e22d optimizer cleanup 1999-02-11 05:29:08 +00:00
Bruce Momjian
dbd80c97f4 Optimizer fix for samekeys() and cost fixes for longer optimizer keys. 1999-02-11 04:08:44 +00:00
Bruce Momjian
9dbb0efb0b Optmizer cleanup 1999-02-10 21:02:50 +00:00
Bruce Momjian
d5a785cd5a Update find_typedefs for bsdi 4.0. 1999-02-10 17:14:32 +00:00
Bruce Momjian
f859c81c18 Rename Path.keys to Path.pathkeys. Too many 'keys' used for other things. 1999-02-10 03:52:54 +00:00
Bruce Momjian
318e593f03 Rename Temp to Noname for noname tables. 1999-02-09 17:03:14 +00:00
Bruce Momjian
78511d8fe9 Optimizer fix for samekeys. 1999-02-09 06:30:45 +00:00
Bruce Momjian
fe35ffe7e0 Major optimizer improvement for joining a large number of tables. 1999-02-09 03:51:42 +00:00
Jan Wieck
be948af2e8 Added LIMIT/OFFSET functionality including new regression test for it. 
Removed CURRENT keyword for rule queries and changed rules regression
accordingly. CURRENT has beed announced to disappear in v6.5.

Jan
 1999-02-08 14:14:32 +00:00
Bruce Momjian
54e5d25666 Optimizer cleanup. 1999-02-08 04:29:25 +00:00
Jan Wieck
566c712c58 Revert some changes from the INTERSECT/EXPECT patch that broke 
rule system semantics by having Var nodes referenced across multiple
parsetrees when rules split them.

Added more tests to the rules regression test.

The code in question resulted from v6.3 based development and was
a little careless applied to the v6.5 source tree.

Jan
 1999-02-08 01:39:46 +00:00
Tom Lane
bd422fbce2 Simplify scanstr(), fix broken octal-escape code. 1999-02-07 23:59:59 +00:00
Tom Lane
f7c6a88c33 Simplify lexer's rules for string constants, eliminate potential buffer overrun. 1999-02-07 23:58:52 +00:00
Tom Lane
f280266985 Clean up some minor compile warnings. 1999-02-07 22:07:02 +00:00
Jan Wieck
04075a0c60 New gram.c after modification of gram.y 
Jan
 1999-02-07 19:04:59 +00:00
Jan Wieck
28fc5d7b83 Reenabled parentheses for grouping multiple rule actions and 
added this syntax to rules regression test so it will show up
if someone breaks it again.

Jan
 1999-02-07 19:02:20 +00:00
Jan Wieck
ef590e101e Changed ExecConstraints() and ExecRelCheck() to cache the constraints 
qualification expression trees in the execution state. Prevents from
memory exhaustion on INSERT, UPDATE or COPY to tables that have CHECK
constraints. Speedup against the variant using freeObject() is more than
factor 2.

Jan
 1999-02-07 16:17:14 +00:00
Jan Wieck
dd4a357dc9 Missing semicolon in last fix :-} 
Jan
 1999-02-07 14:20:11 +00:00
Jan Wieck
6fa3d0a7ab One more fix to QuerySnapshot usage in ExecutorStart(). Maybe 
current QuerySnapshot could be NULL.

Jan
 1999-02-07 13:54:58 +00:00
Jan Wieck
a5f3abacb5 Fixed problem with multiple portals shown up in portals_p2 regression 
test after new AllocSet code.

Activated optimal AllocSet blocksize and chunk limit.

Jan
 1999-02-07 13:37:56 +00:00
Tom Lane
65d320e7e4 Fix bracketing error in CaseExpr code 1999-02-07 03:02:21 +00:00
Tom Lane
48fd9a2cc2 Add equality checking for T_Query so that we don't get 
complaints in UNION regress test.  Probably still need some more node
types to be handled here, but I'm done for the day...
 1999-02-07 00:52:12 +00:00
Tom Lane
3fd3d028fb Add floating-point support to our emulation of snprintf 
so that EXPLAIN works again.
 1999-02-06 21:51:03 +00:00
Tom Lane
fd1afb7453 Fix silly typo causing SELECT INTO TABLE to sometimes be 
treated as SELECT INTO TEMP TABLE.
 1999-02-06 20:28:11 +00:00
Bruce Momjian
a553760845 Optimizer cleanup. 1999-02-06 17:29:30 +00:00
Jan Wieck
ead64f317b New alloc set code using a memory block pool for small allocations. 
Jan
 1999-02-06 16:50:34 +00:00
Bruce Momjian
7d2b3874aa optimizer cleanup 1999-02-05 20:34:11 +00:00
Bruce Momjian
6e2edaf4b8 Optimizer cleanup. 1999-02-05 19:59:31 +00:00
Bruce Momjian
d5db88142c Fix for returning stack pointer from selectivity, from Bernard Frankpitt. 1999-02-05 17:47:29 +00:00
Tom Lane
d3a85108c2 Fix silly typo in prune_joinrel 1999-02-05 03:43:05 +00:00
Bruce Momjian
c45e4925ab Optimizer cleanups. 1999-02-04 23:19:53 +00:00
Bruce Momjian
ae12e25263 Update optimizer comments. 1999-02-04 19:20:12 +00:00
Bruce Momjian
19cc38b28d Large object write-into-middle fix from Tatsuo Ishii. 1999-02-04 14:52:00 +00:00
Bruce Momjian
ce3afccf7f More optimizer cleanups. 1999-02-04 03:19:11 +00:00
Bruce Momjian
18fbe4142f More optimizer renaming HInfo -> HashInfo. 1999-02-04 01:47:02 +00:00
Bruce Momjian
9322950aa4 Cleanup of source files where 'return' or 'var =' is alone on a line. 1999-02-03 21:18:02 +00:00
Bruce Momjian
8d9237d485 Optimizer rename ClauseInfo -> RestrictInfo. Update optimizer README. 1999-02-03 20:15:53 +00:00
Jan Wieck
f3a6b38e32 Sort node for ORDER BY is suppressed if choosen index scan will 
allways present tuples in the requested order.

Jan
 1999-02-03 19:31:24 +00:00
Tom Lane
724119a979 Modify int8 to not depend on sscanf(), and fix configure's test 
for int8 support.  configure now checks only snprintf() for int8 support,
not sprintf and sscanf as it used to.  The reason for doing this is that
if we are supplying our own snprintf code (which does handle long long int),
we now only need working long long support in the compiler not in the
platform's C library.  I have verified that int8 now passes regression test
on HPUX 9, and I think it should work on SunOS 4.1.* and other older
platforms if gcc is used.
 1999-02-03 00:18:53 +00:00
Bruce Momjian
4090d17fee SET_ARGS cleanup 1999-02-02 23:53:26 +00:00
Bruce Momjian
f1b7823471 Make GEQO use dependent on table and index count. 1999-02-02 20:30:18 +00:00
Bruce Momjian
eb3415538e OK I found it, 
I search in the planner for the '\xFF' appending.
Finally I found in MakeIndexable() in gram.y

Attach a patch which removes the "<=" test in USE_LOCALE,
might make some queries a bit slower for us "locale-heads",
BUT correct result is more important.

        regards,
--
-----------------
Göran Thyni
 1999-02-02 19:20:54 +00:00
Bruce Momjian
a7ad43cd18 Included patches make some enhancements to the multi-byte support. 
o allow to use Big5 (a Chinese encoding used in Taiwan) as a client
  encoding. In this case the server side encoding should be EUC_TW

o add EUC_TW and Big5 test cases to the regression and the mb test
  (contributed by Jonah Kuo)

o fix mistake in include/mb/pg_wchar.h. An encoding id for EUC_TW was
  not correct (was 3 and now is 4)

o update documents (doc/README.mb and README.mb.jp)

o update psql helpfile (bin/psql/psqlHelp.h)

--
Tatsuo Ishii
t-ishii@sra.co.jp
 1999-02-02 18:51:40 +00:00
Bruce Momjian
8e958b8a38 Fix create_rule is->as. 1999-02-02 17:46:17 +00:00
Jan Wieck
7ab88a16a1 Fixed failed assertion happening in multiple action rules 
when parsestate in makeRangeTable() already contains an
opened p_target_relation.

Jan
 1999-02-02 12:57:51 +00:00
Bruce Momjian
4390b0bfbe Add TEMP tables/indexes. Add COPY pfree(). Other cleanups. 1999-02-02 03:45:56 +00:00
Jan Wieck
7fc75517df Fixed growing of backend due to not pfree()'d data on COPY FROM 
Fixed growing of backend if BEFORE DELETE trigger returns heap tuple
different from trigtuple.

Jan
 1999-02-01 20:25:55 +00:00
Vadim B. Mikheev
072be47202 Initialize es_snapshot. 1999-02-01 13:33:27 +00:00
Tom Lane
757f403451 Tighten coding in samekeys(). Pretty braindead change, 
but it saves almost 10% of the runtime in Charles Hornberger's optimizer
example, so what the heck ...
 1999-02-01 04:20:50 +00:00