Tom Lane 69c8fbac20 Improve performance of numeric sum(), avg(), stddev(), variance(), etc. ... This patch improves performance of most built-in aggregates that formerly used a NUMERIC or NUMERIC array as their transition type; this includes not only aggregates on numeric inputs, but some aggregates on integer inputs where overflow of an int8 value is a possibility. The code now uses a special-purpose data structure to avoid array construction and deconstruction overhead, as well as packing and unpacking overhead for numeric values. These aggregates' transition type is now declared as INTERNAL, since it doesn't correspond to any SQL data type. To keep the planner from thinking that that means a lot of storage will be used, we make use of the just-added pg_aggregate.aggtransspace feature. The space estimate is set to 128 bytes, which is at least in the right ballpark. Hadi Moshayedi, reviewed by Pavel Stehule and Tomas Vondra		2013-11-16 18:46:34 -05:00
..
.gitignore
abstime.out
advisory_lock.out
aggregates.out	Improve performance of numeric sum(), avg(), stddev(), variance(), etc.	2013-11-16 18:46:34 -05:00
alter_generic.out	Fix whitespace issues found by git diff --check, add gitattributes	2013-11-10 14:48:29 -05:00
alter_table.out	Prevent display of dropped columns in row constraint violation messages.	2013-11-07 14:41:36 -05:00
arrays.out	Don't emit non-canonical empty arrays in array_remove().	2013-05-31 21:50:59 -04:00
async.out	Regression tests for LISTEN/NOTIFY/UNLISTEN/pg_notify.	2013-07-03 11:07:08 -04:00
bit.out
bitmapops.out
boolean.out	Clean up references to SQL92	2013-04-20 11:04:41 -04:00
box.out
btree_index.out
case.out	Clean up references to SQL92	2013-04-20 11:04:41 -04:00
char_1.out
char_2.out
char.out
circle.out
cluster.out	Reduce messages about implicit indexes and sequences to DEBUG1.	2012-07-04 20:35:29 -04:00
collate.linux.utf8.out	Update collate.linux.utf8.out for ruleutils.c line-wrapping changes.	2013-05-08 22:47:33 -04:00
collate.out	Revert "Hopefully-portable regression tests for CREATE/ALTER/DROP COLLATION."	2013-07-03 13:27:50 -04:00
combocid.out	Avoid incrementing the CommandCounter when CommandCounterIncrement is called	2007-11-30 21:22:54 +00:00
comments.out
conversion.out
copy2.out	Adjust COPY FREEZE error message to be more accurate and consistent.	2013-02-02 12:56:52 -05:00
copyselect.out	Reduce messages about implicit indexes and sequences to DEBUG1.	2012-07-04 20:35:29 -04:00
create_aggregate.out	Allow aggregates to provide estimates of their transition state data size.	2013-11-16 16:03:40 -05:00
create_cast.out
create_function_3.out	Remove whitespace from end of lines	2012-05-15 22:19:41 +03:00
create_index.out	Add a regression test case for \d on an index.	2013-11-14 10:35:15 -05:00
create_misc.out
create_operator.out	Additional regression tests for CREATE OPERATOR.	2013-07-03 10:48:26 -04:00
create_table_like.out	Update messages, comments and documentation for materialized views.	2013-07-05 15:37:51 -04:00
create_table.out	Reduce messages about implicit indexes and sequences to DEBUG1.	2012-07-04 20:35:29 -04:00
create_type.out
create_view.out	Fix ruleutils pretty-printing to not generate trailing whitespace.	2013-11-11 13:36:38 -05:00
date.out	Extend the date type to support infinity and -infinity, analogously to	2008-10-14 17:12:33 +00:00
delete.out	Reduce messages about implicit indexes and sequences to DEBUG1.	2012-07-04 20:35:29 -04:00
dependency.out	Reduce messages about implicit indexes and sequences to DEBUG1.	2012-07-04 20:35:29 -04:00
domain.out	Reduce messages about implicit indexes and sequences to DEBUG1.	2012-07-04 20:35:29 -04:00
drop_if_exists.out
enum.out	Allow adding values to an enum type created in the current transaction.	2012-12-01 14:27:30 -05:00
errors.out
event_trigger.out	Remove quotes around SQL statement in error message	2013-04-11 12:00:09 -03:00
float4-exp-three-digits.out
float4.out
float8-exp-three-digits-win32.out
float8-small-is-zero_1.out
float8-small-is-zero.out
float8.out
foreign_data.out	Allow default expressions to be attached to columns of foreign tables.	2013-03-12 17:37:07 -04:00
foreign_key.out	ALTER TABLE ... ALTER CONSTRAINT for FKs	2013-06-29 00:27:30 +01:00
functional_deps.out	Reduce messages about implicit indexes and sequences to DEBUG1.	2012-07-04 20:35:29 -04:00
geometry_1.out	Update regression tests for line type patch	2013-10-10 19:59:15 -04:00
geometry_2.out	Update regression tests for line type patch	2013-10-10 19:59:15 -04:00
geometry.out	Revive line type	2013-10-09 22:34:38 -04:00
guc.out	Issue error on SET outside transaction block in some cases	2013-10-04 13:50:28 -04:00
hash_index.out
horology.out	Remove CTimeZone/HasCTZSet, root and branch.	2013-11-01 13:57:31 -04:00
hs_standby_allowed.out
hs_standby_check.out	Allow read only connections during recovery, known as Hot Standby.	2009-12-19 01:32:45 +00:00
hs_standby_disallowed.out
hs_standby_functions.out
indirect_toast.out	Add support for multiple kinds of external toast datums.	2013-07-02 13:38:55 -04:00
inet.out
inherit.out	Fix generation of MergeAppend plans for optimized min/max on expressions.	2013-11-07 13:14:14 -05:00
insert.out
int2.out	Improve handling of INT_MIN / -1 and related cases.	2012-11-19 12:24:25 -05:00
int4.out	Improve handling of INT_MIN / -1 and related cases.	2012-11-19 12:24:25 -05:00
int8-exp-three-digits.out	Improve handling of INT_MIN / -1 and related cases.	2012-11-19 12:24:25 -05:00
int8.out	Improve handling of INT_MIN / -1 and related cases.	2012-11-19 12:24:25 -05:00
interval.out	Fix bugs with parsing signed hh:mm and hh:mm:ss fields in interval input.	2012-08-03 17:40:43 -04:00
join.out	Compute correct em_nullable_relids in get_eclass_for_sort_expr().	2013-11-15 16:46:18 -05:00
json_1.out	Fix whitespace issues found by git diff --check, add gitattributes	2013-11-10 14:48:29 -05:00
json.out	Fix whitespace issues found by git diff --check, add gitattributes	2013-11-10 14:48:29 -05:00
limit.out
line.out	Revert "Tweak "line" test to avoid negative zeros on some platforms"	2013-10-25 15:50:31 -04:00
lock.out	Regression tests for LOCK TABLE.	2013-07-15 12:30:41 -04:00
lseg.out
macaddr.out
matview.out	Fix ruleutils pretty-printing to not generate trailing whitespace.	2013-11-11 13:36:38 -05:00
money.out
name.out
namespace.out	Fix parse location tracking for lists that can be empty.	2012-10-04 17:15:29 -04:00
numeric_big.out
numeric.out
numerology_1.out
numerology.out	Remove the special cases to prevent minus-zero results in float4 and float8	2009-02-18 19:23:26 +00:00
oid.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
oidjoins.out	Get rid of pg_class.reltoastidxid.	2013-07-04 03:24:09 +09:00
opr_sanity.out	Allow aggregates to provide estimates of their transition state data size.	2013-11-16 16:03:40 -05:00
path.out
plancache.out	Change plan caching to honor, not resist, changes in search_path.	2013-01-25 14:14:41 -05:00
plpgsql.out	Prevent leakage of cached plans and execution trees in plpgsql DO blocks.	2013-11-15 13:52:03 -05:00
point.out	Fix gist_box_same and gist_point_consistent to handle fuzziness correctly.	2013-02-08 18:03:17 -05:00
polygon.out
polymorphism.out	Fix ruleutils pretty-printing to not generate trailing whitespace.	2013-11-11 13:36:38 -05:00
portals_p2.out
portals.out	Fix crash in error report of invalid tuple lock	2013-08-02 13:18:37 -04:00
prepare.out
prepared_xacts_1.out
prepared_xacts.out
privileges.out	Better fix for permissions tests in excluded subqueries.	2013-05-08 16:59:58 -04:00
psql.out	psql: Make \pset without arguments show all settings.	2013-10-03 15:18:02 -04:00
random.out
rangefuncs.out	In locate_grouping_columns(), don't expect an exact match of Var typmods.	2013-08-23 17:30:53 -04:00
rangetypes.out	Fix "element <@ range" cost estimation.	2013-03-21 11:21:51 +02:00
regex.out	Fix regex match failures for backrefs combined with non-greedy quantifiers.	2013-07-18 21:22:37 -04:00
reltime.out
replica_identity.out	Add the notion of REPLICA IDENTITY for a table.	2013-11-08 12:30:43 -05:00
returning.out	Reduce messages about implicit indexes and sequences to DEBUG1.	2012-07-04 20:35:29 -04:00
rowtypes.out	Remove unnecessary restrictions about RowExprs in transformAExprIn().	2013-06-09 18:39:20 -04:00
rules.out	Fix ruleutils pretty-printing to not generate trailing whitespace.	2013-11-11 13:36:38 -05:00
sanity_check.out	Use unaligned output in selected regression queries to reduce diff noise.	2013-10-26 11:24:04 -04:00
select_distinct_on.out
select_distinct.out
select_having_1.out
select_having_2.out
select_having.out
select_implicit_1.out
select_implicit_2.out
select_implicit.out
select_into.out	Restructure SELECT INTO's parsetree representation into CreateTableAsStmt.	2012-03-19 21:38:12 -04:00
select_views_1.out	Fix whitespace issues found by git diff --check, add gitattributes	2013-11-10 14:48:29 -05:00
select_views.out	Fix whitespace issues found by git diff --check, add gitattributes	2013-11-10 14:48:29 -05:00
select.out
sequence_1.out	Fix longstanding crash-safety bug with newly-created-or-reset sequences.	2012-07-25 17:42:23 -04:00
sequence.out	Make DISCARD SEQUENCES also discard the last used sequence.	2013-10-07 15:55:56 -04:00
stats.out
strings.out	Fix regexp_matches() handling of zero-length matches.	2013-07-31 11:31:22 -04:00
subselect.out	Make contain_volatile_functions/contain_mutable_functions look into SubLinks.	2013-11-08 11:36:57 -05:00
temp.out	Reduce messages about implicit indexes and sequences to DEBUG1.	2012-07-04 20:35:29 -04:00
text.out	Move checking an explicit VARIADIC "any" argument into the parser.	2013-07-18 11:52:12 -04:00
time.out
timestamp.out	Fix to_char(), to_date(), and to_timestamp() to handle negative/BC	2012-08-07 13:34:44 -04:00
timestamptz.out	Allow 5+ digit years for non-ISO timestamp/date strings, where appropriate	2013-10-16 13:22:55 -04:00
timetz.out
tinterval.out
transactions.out	Reduce messages about implicit indexes and sequences to DEBUG1.	2012-07-04 20:35:29 -04:00
triggers.out	Fix ruleutils pretty-printing to not generate trailing whitespace.	2013-11-11 13:36:38 -05:00
truncate.out	Reduce messages about implicit indexes and sequences to DEBUG1.	2012-07-04 20:35:29 -04:00
tsdicts.out
tsearch.out
tstypes.out
txid.out
type_sanity.out	Fix CVE-2013-0255 properly.	2013-02-13 16:20:01 -05:00
typed_table.out	Reduce messages about implicit indexes and sequences to DEBUG1.	2012-07-04 20:35:29 -04:00
union.out	Fix crash in error report of invalid tuple lock	2013-08-02 13:18:37 -04:00
updatable_views.out	Fix ruleutils pretty-printing to not generate trailing whitespace.	2013-11-11 13:36:38 -05:00
update.out
uuid.out	Fix whitespace issues found by git diff --check, add gitattributes	2013-11-10 14:48:29 -05:00
vacuum.out	Reduce messages about implicit indexes and sequences to DEBUG1.	2012-07-04 20:35:29 -04:00
varchar_1.out
varchar_2.out
varchar.out
window.out	Support default arguments and named-argument notation for window functions.	2013-11-06 13:33:09 -05:00
with.out	Fix ruleutils pretty-printing to not generate trailing whitespace.	2013-11-11 13:36:38 -05:00
without_oid.out
xml_1.out	Perform line wrapping and indenting by default in ruleutils.c.	2013-02-03 15:56:45 -05:00
xml.out	Perform line wrapping and indenting by default in ruleutils.c.	2013-02-03 15:56:45 -05:00
xmlmap_1.out	Add regression tests for XML mapping of domains	2013-03-13 22:42:57 -04:00
xmlmap.out	Add regression tests for XML mapping of domains	2013-03-13 22:42:57 -04:00