1e70c1fe5d
comments cleanup.
1999-02-22 19:55:44 +00:00
bcfdc9df04
Repair some pretty serious problems in dynahash.c and
...
shared memory space allocation. It's a wonder we have not seen bug
reports traceable to this area ... it's quite clear that the routine
dir_realloc() has never worked correctly, for example.
1999-02-22 06:16:57 +00:00
1ed5cbbfd8
Final optimizer cleanups.
1999-02-22 05:26:58 +00:00
8c3e8a8a0e
From: Tatsuo Ishii <t-ishii@sra.co.jp>
...
Ok. I made patches replacing all of "#if FALSE" or "#if 0" to "#ifdef
NOT_USED" for current. I have tested these patches in that the
postgres binaries are identical.
1999-02-21 03:49:55 +00:00
23c30246d7
pathkeys.c cleanup.
1999-02-21 01:55:03 +00:00
9d197856dd
Rearrange handling of MAXBACKENDS a little bit. The default setting
...
of MAXBACKENDS is now 1024, since all it's costing is about 32 bytes of memory
per array slot. configure's --with-maxbackends switch now controls DEF_MAXBACKENDS
which is simply the default value of the postmaster's -N switch. Thus,
the out-of-the-box configuration will still limit you to 64 backends,
but you can go up to 1024 backends simply by restarting the postmaster with
a different -N switch --- no rebuild required.
1999-02-21 01:41:55 +00:00
75cccd0ad3
pathkeys fixes
1999-02-20 19:02:43 +00:00
9188aab758
add pathkeys description.
1999-02-20 16:28:20 +00:00
4c31393135
Reorder startup ops so that if preallocation of semas fails,
...
postmaster will release whatever it did get before dying.
1999-02-19 07:10:48 +00:00
e77b630cf0
Allow maximum number of backends to be set at configure time
...
(--with-maxbackends). Add a postmaster switch (-N backends) that allows
the limit to be reduced at postmaster start time. (You can't increase it,
sorry to say, because there are still some fixed-size arrays.)
Grab the number of semaphores indicated by min(MAXBACKENDS, -N) at
postmaster startup, so that this particular form of bogus configuration
is exposed immediately rather than under heavy load.
1999-02-19 06:06:39 +00:00
612b8434e4
optimizer cleanup
1999-02-19 05:18:06 +00:00
8ab72a38df
optimizer cleanup
1999-02-19 02:05:20 +00:00
65ccd1039a
Enable bushy plans by default.
1999-02-18 05:26:34 +00:00
e78662d879
optimizer cleanup
1999-02-18 04:55:54 +00:00
d977ff7b52
more optimizer cleanups
1999-02-18 04:45:36 +00:00
31cce21fb0
Fix bushy plans. Cleanup.
1999-02-18 00:49:48 +00:00
c82ca4c158
Re-enable bushy plans. Vadim want them.
1999-02-16 00:41:03 +00:00
e6bf7b4d93
rename
1999-02-15 05:56:07 +00:00
56bb23a8fe
optimizer rename
1999-02-15 05:50:02 +00:00
50034a852d
optimizer rename
1999-02-15 05:28:10 +00:00
c5449d5354
otherrels is now unjoined_rels
1999-02-15 05:21:12 +00:00
82682ff31f
optimizer rename
1999-02-15 03:59:28 +00:00
ba2883b264
Remove duplicate geqo functions, and more optimizer cleanup
1999-02-15 03:22:37 +00:00
61aa825876
Optimizer rename.
1999-02-14 04:57:02 +00:00
6724a50787
Change my-function-name-- to my_function_name, and optimizer renames.
1999-02-13 23:22:53 +00:00
ba71b81966
Remove equivalence between datetime and float8. Led to nothin' but trouble.
1999-02-13 05:25:54 +00:00
02e85e7e5f
Add routines to convert between int8 and text/varchar types.
...
Fix output type for int8out, but I don't think it matters.
1999-02-13 04:19:54 +00:00
7a724a0231
Include some Julian date declarations to share between various date/time
...
modules. Used to be in dt.c I think.
1999-02-13 04:15:33 +00:00
ad4b27ac3f
Optimizer cleanup.
1999-02-12 17:25:05 +00:00
c0d17c7aee
JoinPath -> NestPath for nested loop.
1999-02-12 06:43:53 +00:00
3fdb9bb9c7
Fix optimizer and make faster.
1999-02-12 05:57:08 +00:00
6de25f09b1
Optimizer cleanup.
1999-02-11 17:00:49 +00:00
d244df95db
More optimizer speedups.
1999-02-11 14:59:09 +00:00
dbd80c97f4
Optimizer fix for samekeys() and cost fixes for longer optimizer keys.
1999-02-11 04:08:44 +00:00
403b3eff79
Include <varargs.h> on SunOS. (Does any other platform need it??)
1999-02-11 01:36:55 +00:00
9dbb0efb0b
Optmizer cleanup
1999-02-10 21:02:50 +00:00
f859c81c18
Rename Path.keys to Path.pathkeys. Too many 'keys' used for other things.
1999-02-10 03:52:54 +00:00
318e593f03
Rename Temp to Noname for noname tables.
1999-02-09 17:03:14 +00:00
fe35ffe7e0
Major optimizer improvement for joining a large number of tables.
1999-02-09 03:51:42 +00:00
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
54e5d25666
Optimizer cleanup.
1999-02-08 04:29:25 +00:00
5212ef8e46
Correct definition of srandom() --- it takes unsigned int not int.
1999-02-07 22:04:57 +00:00
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
a553760845
Optimizer cleanup.
1999-02-06 17:29:30 +00:00
ead64f317b
New alloc set code using a memory block pool for small allocations.
...
Jan
1999-02-06 16:50:34 +00:00
6e2edaf4b8
Optimizer cleanup.
1999-02-05 19:59:31 +00:00
ce3afccf7f
More optimizer cleanups.
1999-02-04 03:19:11 +00:00
18fbe4142f
More optimizer renaming HInfo -> HashInfo.
1999-02-04 01:47:02 +00:00
8d9237d485
Optimizer rename ClauseInfo -> RestrictInfo. Update optimizer README.
1999-02-03 20:15:53 +00:00
4090d17fee
SET_ARGS cleanup
1999-02-02 23:53:26 +00:00
Bruce Momjian
Tom Lane
Marc G. Fournier
Thomas G. Lockhart
Jan Wieck