Tom Lane 0e5e167aae Collect and use element-frequency statistics for arrays. ... This patch improves selectivity estimation for the array <@, &&, and @> (containment and overlaps) operators. It enables collection of statistics about individual array element values by ANALYZE, and introduces operator-specific estimators that use these stats. In addition, ScalarArrayOpExpr constructs of the forms "const = ANY/ALL (array_column)" and "const <> ANY/ALL (array_column)" are estimated by treating them as variants of the containment operators. Since we still collect scalar-style stats about the array values as a whole, the pg_stats view is expanded to show both these stats and the array-style stats in separate columns. This creates an incompatible change in how stats for tsvector columns are displayed in pg_stats: the stats about lexemes are now displayed in the array-related columns instead of the original scalar-related columns. There are a few loose ends here, notably that it'd be nice to be able to suppress either the scalar-style stats or the array-element stats for columns for which they're not useful. But the patch is in good enough shape to commit for wider testing. Alexander Korotkov, reviewed by Noah Misch and Nathan Boley		2012-03-03 20:20:57 -05:00
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.gitignore	Add a SECURITY LABEL command.	2010-09-27 20:55:27 -04:00
abstime.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
advisory_lock.out	Add transaction-level advisory locks.	2011-02-18 14:05:12 +09:00
aggregates.out	Add bytea_agg, parallel to string_agg.	2011-12-23 08:40:25 -05:00
alter_table.out	Be more clear when a new column name collides with a system column name.	2012-01-26 12:44:30 -05:00
arrays.out	Collect and use element-frequency statistics for arrays.	2012-03-03 20:20:57 -05:00
bit.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
bitmapops.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
boolean.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
box.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
btree_index.out
case.out
char_1.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
char_2.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
char.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
circle.out
cluster.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
collate.linux.utf8.out	Update expected/collate.linux.utf8.out for recent plpgsql changes.	2012-02-18 18:08:02 -05:00
collate.out	Add COLLATION FOR expression	2012-03-02 21:12:16 +02:00
combocid.out
comments.out
conversion.out	Support hex-string input and output for type BYTEA.	2009-08-04 16:08:37 +00:00
copy2.out	Add ENCODING option to COPY TO/FROM and file_fdw.	2011-02-21 14:32:40 +09:00
copyselect.out	Have \copy go through SendQuery	2012-01-25 18:22:00 -03:00
create_aggregate.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
create_cast.out	Improve psql's tabular display of wrapped-around data by inserting markers	2009-11-22 05:20:41 +00:00
create_function_3.out	More regression tests for LEAKPROOF/NOT LEAKPROOF stuff.	2012-02-15 10:56:26 -05:00
create_index.out	Tweak duplicate-index-column regression test to avoid locale sensitivity.	2012-01-12 14:18:08 -05:00
create_misc.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
create_operator.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
create_table_like.out	Allow CREATE TABLE (LIKE ...) from composite type	2012-03-03 16:03:05 +02:00
create_table.out	Fix another bit of unlogged-table-induced breakage.	2011-09-21 10:48:31 -04:00
create_type.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
create_view.out	Add a security_barrier option for views.	2011-12-22 16:16:31 -05:00
date.out
delete.out	Regression tests for TOAST.	2011-04-25 09:48:10 -04:00
dependency.out	Improve wording for privilege description on certain failure messages; the	2010-08-26 19:49:08 +00:00
domain.out	Code review for plpgsql fn_signature patch.	2012-02-01 02:14:37 -05:00
drop_if_exists.out	Fix DROP OPERATOR FAMILY IF EXISTS.	2011-10-21 09:12:23 -04:00
enum.out	Require VALUE keyword when extending an enum type. Based on a patch from Alvaro Herrera.	2010-11-16 22:18:33 -05:00
errors.out	Be more clear when a new column name collides with a system column name.	2012-01-26 12:44:30 -05:00
euc_cn.out
euc_jp.out
euc_kr.out
euc_tw.out
float4-exp-three-digits.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
float4.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
float8-exp-three-digits-win32.out	Revert "Add some regression test cases for denormalized float8 input."	2012-02-04 15:52:09 -05:00
float8-small-is-zero_1.out	Revert "Add some regression test cases for denormalized float8 input."	2012-02-04 15:52:09 -05:00
float8-small-is-zero.out	Revert "Add some regression test cases for denormalized float8 input."	2012-02-04 15:52:09 -05:00
float8.out	Revert "Add some regression test cases for denormalized float8 input."	2012-02-04 15:52:09 -05:00
foreign_data.out	Show default privileges in information schema	2012-01-27 21:58:51 +02:00
foreign_key.out	Change FK trigger creation order to better support self-referential FKs.	2011-10-26 13:02:28 -04:00
functional_deps.out	Recognize functional dependency on primary keys. This allows a table's	2010-08-07 02:44:09 +00:00
geometry_1.out	Rewrite the planner's handling of materialized plan types so that there is	2009-09-12 22:12:09 +00:00
geometry_2.out	Rewrite the planner's handling of materialized plan types so that there is	2009-09-12 22:12:09 +00:00
geometry.out	Rewrite the planner's handling of materialized plan types so that there is	2009-09-12 22:12:09 +00:00
guc.out	Code review for plpgsql fn_signature patch.	2012-02-01 02:14:37 -05:00
hash_index.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
horology.out	On second thought, we'd better just drop these tests altogether.	2011-11-06 20:12:20 -05:00
hs_standby_allowed.out	Allow read only connections during recovery, known as Hot Standby.	2009-12-19 01:32:45 +00:00
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	Update standbycheck test output with new ERROR message changes. No changes	2010-05-02 12:28:43 +00:00
hs_standby_functions.out	Update standbycheck test output with new ERROR message changes. No changes	2010-05-02 12:28:43 +00:00
inet.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
inherit.out	Add ORDER BY to a query to prevent occasional regression test failures.	2012-02-10 02:33:00 -05:00
insert.out	When a row fails a not-null constraint, show row's contents in errdetail.	2011-11-29 18:29:18 -05:00
int2.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
int4.out	Attempt to fix breakage caused by signed integer conversion patch.	2010-11-20 01:09:26 -05:00
int8-exp-three-digits.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
int8.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
interval.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
join.out	Fix handling of PlaceHolderVars in nestloop parameter management.	2011-11-03 00:50:58 -04:00
json.out	Fix a couple of cases of JSON output.	2012-02-20 15:01:03 -05:00
limit.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
lseg.out
macaddr.out	Add bitwise AND, OR, and NOT operators for macaddr data type.	2012-01-19 15:25:14 -05:00
money.out	Add casts from int4 and int8 to numeric.	2011-04-05 09:35:43 -04:00
mule_internal.out
name.out
namespace.out
numeric_big.out
numeric.out	Add some enumeration commas, for consistency	2012-02-24 11:04:45 +02:00
numerology_1.out
numerology.out
oid.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
oidjoins.out	Update oidjoins regression test to match git HEAD.	2011-11-14 20:28:38 -05:00
opr_sanity.out	Support min/max index optimizations on boolean columns.	2012-02-08 12:41:48 -05:00
path.out
plancache.out	Code review for plpgsql fn_signature patch.	2012-02-01 02:14:37 -05:00
plpgsql.out	Code review for plpgsql fn_signature patch.	2012-02-01 02:14:37 -05:00
point.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
polygon.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
polymorphism.out	Improve pretty printing of viewdefs.	2012-02-19 11:43:46 -05:00
portals_p2.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
portals.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
prepare.out	Improve psql's tabular display of wrapped-around data by inserting markers	2009-11-22 05:20:41 +00:00
prepared_xacts_1.out	Fix a bug with SSI and prepared transactions:	2011-07-07 18:12:15 +03:00
prepared_xacts.out	Adjust regression tests for error message change	2011-08-15 17:27:10 +03:00
privileges.out	Add support for privileges on types	2011-12-20 00:05:19 +02:00
random.out
rangefuncs.out	Support index-only scans using the visibility map to avoid heap fetches.	2011-10-07 20:14:13 -04:00
rangetypes.out	Remove zero- and one-argument range constructor functions.	2011-11-22 20:45:05 -05:00
regex.out	Fix the general case of quantified regex back-references.	2012-02-24 01:41:03 -05:00
reltime.out
returning.out
rowtypes.out	Message style and spelling improvements	2011-06-22 00:45:34 +03:00
rules.out	Collect and use element-frequency statistics for arrays.	2012-03-03 20:20:57 -05:00
sanity_check.out	Rename the internal structures of the CREATE TABLE (LIKE ...) facility	2012-01-07 23:02:33 +02:00
select_distinct_on.out	Fix assertion failure when a SELECT DISTINCT ON expression is volatile.	2009-09-12 00:04:59 +00:00
select_distinct.out	Alter some gratuitous uses of "ANSI" when "SQL standard" might have been	2009-07-11 21:15:32 +00:00
select_having_1.out
select_having_2.out
select_having.out
select_implicit_1.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
select_implicit_2.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
select_implicit.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
select_into.out	Make executor's SELECT INTO code save and restore original tuple receiver.	2012-01-04 18:30:55 -05:00
select_views_1.out	Allow LEAKPROOF functions for better performance of security views.	2012-02-13 22:21:14 -05:00
select_views.out	Allow LEAKPROOF functions for better performance of security views.	2012-02-13 22:21:14 -05:00
select.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
sequence_1.out	When a row fails a not-null constraint, show row's contents in errdetail.	2011-11-29 18:29:18 -05:00
sequence.out	ALTER <thing> [IF EXISTS] ... allows silent DDL if required,	2012-01-23 23:25:04 +00:00
sql_ascii.out
stats.out	Prevent index-only scans in stats regression test.	2011-10-08 23:45:58 -04:00
strings.out	Rewrite LIKE's %-followed-by-_ optimization so it really works (this time	2010-05-28 17:35:23 +00:00
subselect.out	Improve generated column names for cases involving sub-SELECTs.	2011-10-01 14:01:46 -04:00
temp.out
text.out	Message style improvements	2011-07-08 07:37:04 +03:00
time.out
timestamp.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
timestamptz.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
timetz.out
tinterval.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
transactions.out	Run a portal's cleanup hook immediately when pushing it to FAILED state.	2012-02-15 16:19:01 -05:00
triggers.out	Code review for plpgsql fn_signature patch.	2012-02-01 02:14:37 -05:00
truncate.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
tsdicts.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
tsearch.out	Fix gincostestimate to handle ScalarArrayOpExpr reasonably.	2011-12-20 19:57:34 -05:00
tstypes.out
txid.out
type_sanity.out	Collect and use element-frequency statistics for arrays.	2012-03-03 20:20:57 -05:00
typed_table.out	Only allow typed tables to hang off composite types, not e.g. tables.	2011-04-18 10:19:46 -04:00
union.out	Fix pushing of index-expression qualifications through UNION ALL.	2012-01-29 16:31:23 -05:00
update.out	Regression tests for TOAST.	2011-04-25 09:48:10 -04:00
uuid.out	Improve unique-constraint-violation error messages to include the exact	2009-08-01 19:59:41 +00:00
vacuum.out	Remove old-style VACUUM FULL (which was known for a little while as	2010-02-08 04:33:55 +00:00
varchar_1.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
varchar_2.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
varchar.out	Remove useless whitespace at end of lines	2010-11-23 22:34:55 +02:00
window.out	Measure the number of all-visible pages for use in index-only scan costing.	2011-10-14 17:23:46 -04:00
with.out	Improve pretty printing of viewdefs.	2012-02-19 11:43:46 -05:00
without_oid.out
xml_1.out	Make xpath() do something useful with XPath expressions that return scalars.	2011-07-21 11:32:46 -04:00
xml.out	Make xpath() do something useful with XPath expressions that return scalars.	2011-07-21 11:32:46 -04:00
xmlmap_1.out	Regression test for XML mapping functionality	2009-07-02 07:03:18 +00:00
xmlmap.out	Ooops, forgot to check the libxml cases for psql output wrapping change.	2009-11-22 06:01:09 +00:00