Tomas Vondra 2a307df1bb Fix ndistinct estimates with system attributes ...

When estimating the number of groups using extended statistics, the code
was discarding information about system attributes. This led to strange
situation that

    SELECT 1 FROM t GROUP BY ctid;

could have produced higher estimate (equal to pg_class.reltuples) than

    SELECT 1 FROM t GROUP BY a, b, ctid;

with extended statistics on (a,b). Fixed by retaining information about
the system attribute.

Backpatch all the way to 10, where extended statistics were introduced.

Author: Tomas Vondra
Backpatch-through: 10

2021-03-26 22:44:01 +01:00

..

acl.c

Invalidate acl.c caches when pg_authid changes.

2020-12-25 10:42:03 -08:00

amutils.c

Post-feature-freeze pgindent run.

2018-04-26 14:47:16 -04:00

array_expanded.c

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2018-01-02 23:30:12 -05:00

array_selfuncs.c

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2018-01-02 23:30:12 -05:00

array_typanalyze.c

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2018-01-02 23:30:12 -05:00

array_userfuncs.c

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2018-01-02 23:30:12 -05:00

arrayfuncs.c

Don't read fields of a misaligned ExpandedObjectHeader or AnyArrayType.

2019-06-30 17:34:20 -07:00

arrayutils.c

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2018-01-02 23:30:12 -05:00

ascii.c

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2018-01-02 23:30:12 -05:00

bool.c

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2018-01-02 23:30:12 -05:00

cash.c

Fix loss of fractional digits for large values in cash_numeric().

2019-07-26 11:59:00 -04:00

char.c

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2018-01-02 23:30:12 -05:00

cryptohashes.c

Add user-callable SHA-2 functions

2018-02-22 11:34:53 -05:00

date.c

Reject "23:59:60.nnn" in datetime input.

2020-06-04 16:42:08 -04:00

datetime.c

Reject "23:59:60.nnn" in datetime input.

2020-06-04 16:42:08 -04:00

datum.c

MAXALIGN the target address where we store flattened value.

2018-10-03 09:14:09 +05:30

dbsize.c

Fix more format truncation issues

2018-03-15 11:41:42 -04:00

domains.c

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2018-01-02 23:30:12 -05:00

encode.c

Rename base64 routines to avoid conflict with Solaris built-in functions.

2018-02-28 18:33:45 -05:00

enum.c

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2018-01-02 23:30:12 -05:00

expandeddatum.c

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2018-01-02 23:30:12 -05:00

expandedrecord.c

Detoast plpgsql variables if they might live across a transaction boundary.

2018-05-16 14:56:52 -04:00

float.c

Fix integer-overflow edge case detection in interval_mul and pgbench.

2019-11-07 11:23:00 -05:00

format_type.c

Fix format_type() to restore its old behavior.

2018-03-01 11:37:46 -05:00

formatting.c

Fix handling of BC years in to_date/to_timestamp.

2020-09-30 15:40:23 -04:00

genfile.c

Fix function name in error hint

2021-03-18 11:24:42 +01:00

geo_ops.c

Fix circle_in to accept "(x,y),r" as it's advertised to do.

2020-04-07 20:50:02 -04:00

geo_selfuncs.c

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2018-01-02 23:30:12 -05:00

geo_spgist.c

Fix typos.

2018-08-27 09:34:35 +12:00

inet_cidr_ntop.c

Suppress -Wshift-negative-value warnings.

2018-06-17 16:15:11 -04:00

inet_net_pton.c

Remove unnecessary parentheses in return statements

2017-09-05 14:52:55 -04:00

int8.c

Fix integer-overflow edge case detection in interval_mul and pgbench.

2019-11-07 11:23:00 -05:00

int.c

Make new error code name match SQL standard more closely

2018-06-11 11:15:28 -04:00

json.c

Remove bogus "extern" annotations on function definitions.

2018-02-19 12:07:44 -05:00

jsonb_gin.c

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2018-01-02 23:30:12 -05:00

jsonb_op.c

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2018-01-02 23:30:12 -05:00

jsonb_util.c

Initialize new jsonb iterator to zero

2018-05-28 23:53:43 -04:00

jsonb.c

pgindent run prior to branching

2018-06-30 12:25:49 -04:00

jsonfuncs.c

Remove "invalid concatenation of jsonb objects" error case.

2020-12-21 13:11:29 -05:00

levenshtein.c

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2018-01-02 23:30:12 -05:00

like_match.c

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2018-01-02 23:30:12 -05:00

like.c

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2018-01-02 23:30:12 -05:00

lockfuncs.c

Move new LOCKTAG_DATABASE_FROZEN_IDS to end of enum LockTagType.

2020-08-15 16:16:15 -07:00

mac8.c

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2018-01-02 23:30:12 -05:00

mac.c

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2018-01-02 23:30:12 -05:00

Makefile

Add user-callable SHA-2 functions

2018-02-22 11:34:53 -05:00

misc.c

Fix pg_current_logfile() to not emit a carriage return on Windows.

2020-07-09 16:02:23 -04:00

nabstime.c

Avoid statically allocating gmtsub()'s timezone workspace.

2018-10-16 11:50:18 -04:00

name.c

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2018-01-02 23:30:12 -05:00

network_gist.c

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2018-01-02 23:30:12 -05:00

network_selfuncs.c

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2018-01-02 23:30:12 -05:00

network_spgist.c

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2018-01-02 23:30:12 -05:00

network.c

Suppress -Wshift-negative-value warnings.

2018-06-17 16:15:11 -04:00

numeric.c

Add an explicit cast to double when using fabs().

2021-01-05 11:48:45 +00:00

numutils.c

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2018-01-02 23:30:12 -05:00

oid.c

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2018-01-02 23:30:12 -05:00

oracle_compat.c

Add CHECK_FOR_INTERRUPTS() to the repeat() function

2020-05-28 13:19:16 -04:00

orderedsetaggs.c

Use context with correct lifetime in hypothetical_dense_rank_final.

2018-07-04 17:36:19 -07:00

pg_locale.c

Fix the MSVC build for versions 2015 and later.

2020-05-14 09:39:04 +05:30

pg_lsn.c

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2018-01-02 23:30:12 -05:00

pg_upgrade_support.c

Allow for pg_upgrade of attributes with missing values

2018-06-22 08:42:36 -04:00

pgstatfuncs.c

Allow pg_read_all_stats to access all stats views again

2020-04-20 12:57:12 +02:00

pseudotypes.c

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2018-01-02 23:30:12 -05:00

quote.c

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2018-01-02 23:30:12 -05:00

rangetypes_gist.c

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2018-01-02 23:30:12 -05:00

rangetypes_selfuncs.c

Fix edge-case crashes and misestimation in range containment selectivity.

2020-01-12 14:37:00 -05:00

rangetypes_spgist.c

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2018-01-02 23:30:12 -05:00

rangetypes_typanalyze.c

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2018-01-02 23:30:12 -05:00

rangetypes.c

Fix error in commit e6feef57.

2019-07-18 16:45:03 -07:00

regexp.c

Repair bug in regexp split performance improvements.

2018-09-12 19:43:44 +01:00

regproc.c

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2018-01-02 23:30:12 -05:00

ri_triggers.c

Restore RI trigger sanity check

2019-03-20 17:23:26 -03:00

rowtypes.c

Catch invalid typlens in a couple of places

2019-11-04 09:20:33 +01:00

ruleutils.c

Fix broken ruleutils support for function TRANSFORM clauses.

2021-01-25 13:03:11 -05:00

selfuncs.c

Fix ndistinct estimates with system attributes

2021-03-26 22:44:01 +01:00

tid.c

Fix use-after-release mistake in currtid() and currtid2() for views

2020-06-01 14:41:32 +09:00

timestamp.c

Fix and simplify some usages of TimestampDifference().

2020-11-10 22:51:56 -05:00

trigfuncs.c

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2018-01-02 23:30:12 -05:00

tsginidx.c

Fix full text search to handle NOT above a phrase search correctly.

2020-04-27 12:21:04 -04:00

tsgistidx.c

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2018-01-02 23:30:12 -05:00

tsquery_cleanup.c

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2018-01-02 23:30:12 -05:00

tsquery_gist.c

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tsquery_op.c

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tsquery_rewrite.c

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tsquery_util.c

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tsquery.c

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2018-04-26 14:47:16 -04:00

tsrank.c

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2018-01-02 23:30:12 -05:00

tsvector_op.c

Fix recently-introduced performance problem in ts_headline().

2020-07-31 11:43:12 -04:00

tsvector_parser.c

Add websearch_to_tsquery

2018-04-05 19:55:11 +03:00

tsvector.c

Add websearch_to_tsquery

2018-04-05 19:55:11 +03:00

txid.c

Fix off-by-one error in txid_status().

2019-03-27 21:30:49 +13:00

uuid.c

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2018-01-02 23:30:12 -05:00

varbit.c

Fix integer-overflow corner cases in substring() functions.

2021-01-04 18:32:40 -05:00

varchar.c

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2018-01-02 23:30:12 -05:00

varlena.c

Fix integer-overflow corner cases in substring() functions.

2021-01-04 18:32:40 -05:00

version.c

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2018-01-02 23:30:12 -05:00

windowfuncs.c

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2018-01-02 23:30:12 -05:00

xid.c

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2018-01-02 23:30:12 -05:00

xml.c

Avoid failure when selecting a namespace node in XMLTABLE.

2019-10-25 15:22:40 -04:00