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Organize and deduplicate statistics import tests.

Browse Source 
Author: Corey Huinker <corey.huinker@gmail.com>
Reported-by: Melanie Plageman <melanieplageman@gmail.com>
Discussion: https://postgr.es/m/CAAKRu_bWEqUfxhODfJ-XbZC75vq=P6DYOKK6biyey=yM1Ah3Hg@mail.gmail.com
Discussion: https://postgr.es/m/CADkLM=f1n2_Vomq0gKab7xdxDHmJGgn=DE48P8fzQOp3Mrs1Qg@mail.gmail.com
pull/207/head
Jeff Davis 6 months ago
parent f9f4b43b8d
commit 1d33de9d68
2 changed files with 454 additions and 782 deletions
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
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  1. 681
      src/test/regress/expected/stats_import.out
  2. 555
      src/test/regress/sql/stats_import.sql

681
src/test/regress/expected/stats_import.out
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File diff suppressed because it is too large Load Diff

555
src/test/regress/sql/stats_import.sql
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@ -17,15 +17,43 @@ CREATE TABLE stats_import.test(
CREATE INDEX test_i ON stats_import.test(id);
--
-- relstats tests
--
--- error: relation is wrong type
SELECT pg_catalog.pg_restore_relation_stats(
'relation', 0::oid,
'relpages', 17::integer);
-- error: relation not found
SELECT pg_catalog.pg_restore_relation_stats(
'relation', 0::oid::regclass,
'relpages', 17::integer);
-- error: odd number of variadic arguments cannot be pairs
SELECT pg_restore_relation_stats(
'relation', 'stats_import.test'::regclass,
'relallvisible');
-- error: argument name is NULL
SELECT pg_restore_relation_stats(
'relation', 'stats_import.test'::regclass,
NULL, '17'::integer);
-- error: argument name is not a text type
SELECT pg_restore_relation_stats(
'relation', '0'::oid::regclass,
17, '17'::integer);
-- starting stats
SELECT relpages, reltuples, relallvisible, relallfrozen
FROM pg_class
WHERE oid = 'stats_import.test'::regclass;
WHERE oid = 'stats_import.test_i'::regclass;
BEGIN;
-- regular indexes have special case locking rules
SELECT
pg_catalog.pg_restore_relation_stats(
BEGIN;
SELECT pg_catalog.pg_restore_relation_stats(
'relation', 'stats_import.test_i'::regclass,
'relpages', 18::integer);
@ -39,20 +67,6 @@ WHERE relation = 'stats_import.test_i'::regclass AND
COMMIT;
SELECT
pg_catalog.pg_restore_relation_stats(
'relation', 'stats_import.test_i'::regclass,
'relpages', 19::integer );
-- clear
SELECT
pg_catalog.pg_clear_relation_stats(
'stats_import.test'::regclass);
SELECT relpages, reltuples, relallvisible, relallfrozen
FROM pg_class
WHERE oid = 'stats_import.test'::regclass;
-- relpages may be -1 for partitioned tables
CREATE TABLE stats_import.part_parent ( i integer ) PARTITION BY RANGE(i);
CREATE TABLE stats_import.part_child_1
@ -68,18 +82,6 @@ SELECT relpages
FROM pg_class
WHERE oid = 'stats_import.part_parent'::regclass;
-- although partitioned tables have no storage, setting relpages to a
-- positive value is still allowed
SELECT
pg_catalog.pg_restore_relation_stats(
'relation', 'stats_import.part_parent_i'::regclass,
'relpages', 2::integer);
SELECT
pg_catalog.pg_restore_relation_stats(
'relation', 'stats_import.part_parent'::regclass,
'relpages', 2::integer);
--
-- Partitioned indexes aren't analyzed but it is possible to set
-- stats. The locking rules are different from normal indexes due to
@ -88,8 +90,7 @@ SELECT
--
BEGIN;
SELECT
pg_catalog.pg_restore_relation_stats(
SELECT pg_catalog.pg_restore_relation_stats(
'relation', 'stats_import.part_parent_i'::regclass,
'relpages', 2::integer);
@ -103,22 +104,15 @@ WHERE relation = 'stats_import.part_parent_i'::regclass AND
COMMIT;
SELECT
pg_catalog.pg_restore_relation_stats(
'relation', 'stats_import.part_parent_i'::regclass,
'relpages', 2::integer);
-- nothing stops us from setting it to -1
SELECT
pg_catalog.pg_restore_relation_stats(
'relation', 'stats_import.part_parent'::regclass,
'relpages', -1::integer);
SELECT relpages
FROM pg_class
WHERE oid = 'stats_import.part_parent_i'::regclass;
-- ok: set all stats
-- ok: set all relstats, with version, no bounds checking
SELECT pg_restore_relation_stats(
'relation', 'stats_import.test'::regclass,
'version', 150000::integer,
'relpages', '17'::integer,
'relpages', '-17'::integer,
'reltuples', 400::real,
'relallvisible', 4::integer,
'relallfrozen', 2::integer);
@ -127,30 +121,27 @@ SELECT relpages, reltuples, relallvisible, relallfrozen
FROM pg_class
WHERE oid = 'stats_import.test'::regclass;
-- ok: just relpages
-- ok: set just relpages, rest stay same
SELECT pg_restore_relation_stats(
'relation', 'stats_import.test'::regclass,
'version', 150000::integer,
'relpages', '16'::integer);
SELECT relpages, reltuples, relallvisible, relallfrozen
FROM pg_class
WHERE oid = 'stats_import.test'::regclass;
-- ok: just reltuples
-- ok: set just reltuples, rest stay same
SELECT pg_restore_relation_stats(
'relation', 'stats_import.test'::regclass,
'version', 150000::integer,
'reltuples', '500'::real);
SELECT relpages, reltuples, relallvisible, relallfrozen
FROM pg_class
WHERE oid = 'stats_import.test'::regclass;
-- ok: just relallvisible
-- ok: set just relallvisible, rest stay same
SELECT pg_restore_relation_stats(
'relation', 'stats_import.test'::regclass,
'version', 150000::integer,
'relallvisible', 5::integer);
SELECT relpages, reltuples, relallvisible, relallfrozen
@ -167,10 +158,9 @@ SELECT relpages, reltuples, relallvisible, relallfrozen
FROM pg_class
WHERE oid = 'stats_import.test'::regclass;
-- warn: bad relpages type
-- warn: bad relpages type, rest updated
SELECT pg_restore_relation_stats(
'relation', 'stats_import.test'::regclass,
'version', 150000::integer,
'relpages', 'nope'::text,
'reltuples', 400.0::real,
'relallvisible', 4::integer,
@ -180,17 +170,104 @@ SELECT relpages, reltuples, relallvisible, relallfrozen
FROM pg_class
WHERE oid = 'stats_import.test'::regclass;
-- unrecognized argument name, rest ok
SELECT pg_restore_relation_stats(
'relation', 'stats_import.test'::regclass,
'relpages', '171'::integer,
'nope', 10::integer);
SELECT relpages, reltuples, relallvisible
FROM pg_class
WHERE oid = 'stats_import.test'::regclass;
-- ok: clear stats
SELECT pg_catalog.pg_clear_relation_stats(
relation => 'stats_import.test'::regclass);
SELECT relpages, reltuples, relallvisible
FROM pg_class
WHERE oid = 'stats_import.test'::regclass;
-- invalid relkinds for statistics
CREATE SEQUENCE stats_import.testseq;
CREATE VIEW stats_import.testview AS SELECT * FROM stats_import.test;
SELECT
pg_catalog.pg_clear_relation_stats(
SELECT pg_catalog.pg_restore_relation_stats(
'relation', 'stats_import.testseq'::regclass);
SELECT pg_catalog.pg_clear_relation_stats(
'stats_import.testseq'::regclass);
SELECT
pg_catalog.pg_clear_relation_stats(
CREATE VIEW stats_import.testview AS SELECT * FROM stats_import.test;
SELECT pg_catalog.pg_restore_relation_stats(
'relation', 'stats_import.testview'::regclass);
SELECT pg_catalog.pg_clear_relation_stats(
'stats_import.testview'::regclass);
-- ok: no stakinds
--
-- attribute stats
--
-- error: object does not exist
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', '0'::oid::regclass,
'attname', 'id'::name,
'inherited', false::boolean,
'null_frac', 0.1::real);
-- error: relation null
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', NULL::oid::regclass,
'attname', 'id'::name,
'inherited', false::boolean,
'null_frac', 0.1::real);
-- error: NULL attname
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', NULL::name,
'inherited', false::boolean,
'null_frac', 0.1::real);
-- error: attname doesn't exist
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'nope'::name,
'inherited', false::boolean,
'null_frac', 0.1::real,
'avg_width', 2::integer,
'n_distinct', 0.3::real);
-- error: both attname and attnum
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'id'::name,
'attnum', 1::smallint,
'inherited', false::boolean,
'null_frac', 0.1::real);
-- error: neither attname nor attnum
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'inherited', false::boolean,
'null_frac', 0.1::real);
-- error: attribute is system column
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'xmin'::name,
'inherited', false::boolean,
'null_frac', 0.1::real);
-- error: inherited null
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'id'::name,
'inherited', NULL::boolean,
'null_frac', 0.1::real);
-- ok: just the fixed values, with version, no stakinds
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'id'::name,
@ -207,15 +284,16 @@ AND tablename = 'test'
AND inherited = false
AND attname = 'id';
-- ok: restore by attnum
--
-- ok: restore by attnum, we normally reserve this for
-- indexes, but there is no reason it shouldn't work
-- for any stat-having relation.
--
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attnum', 1::smallint,
'inherited', false::boolean,
'version', 150000::integer,
'null_frac', 0.4::real,
'avg_width', 5::integer,
'n_distinct', 0.6::real);
'null_frac', 0.4::real);
SELECT *
FROM pg_stats
@ -224,14 +302,12 @@ AND tablename = 'test'
AND inherited = false
AND attname = 'id';
-- warn: unrecognized argument name
-- warn: unrecognized argument name, rest get set
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'id'::name,
'inherited', false::boolean,
'version', 150000::integer,
'null_frac', 0.2::real,
'avg_width', NULL::integer,
'nope', 0.5::real);
SELECT *
@ -241,15 +317,12 @@ AND tablename = 'test'
AND inherited = false
AND attname = 'id';
-- warn: mcv / mcf null mismatch part 1
-- warn: mcv / mcf null mismatch part 1, rest get set
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'id'::name,
'inherited', false::boolean,
'version', 150000::integer,
'null_frac', 0.6::real,
'avg_width', 7::integer,
'n_distinct', -0.7::real,
'null_frac', 0.21::real,
'most_common_freqs', '{0.1,0.2,0.3}'::real[]
);
@ -260,15 +333,12 @@ AND tablename = 'test'
AND inherited = false
AND attname = 'id';
-- warn: mcv / mcf null mismatch part 2
-- warn: mcv / mcf null mismatch part 2, rest get set
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'id'::name,
'inherited', false::boolean,
'version', 150000::integer,
'null_frac', 0.7::real,
'avg_width', 8::integer,
'n_distinct', -0.8::real,
'null_frac', 0.21::real,
'most_common_vals', '{1,2,3}'::text
);
@ -279,15 +349,12 @@ AND tablename = 'test'
AND inherited = false
AND attname = 'id';
-- warn: mcv / mcf type mismatch
-- warn: mcf type mismatch, mcv-pair fails, rest get set
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'id'::name,
'inherited', false::boolean,
'version', 150000::integer,
'null_frac', 0.8::real,
'avg_width', 9::integer,
'n_distinct', -0.9::real,
'null_frac', 0.22::real,
'most_common_vals', '{2,1,3}'::text,
'most_common_freqs', '{0.2,0.1}'::double precision[]
);
@ -299,15 +366,12 @@ AND tablename = 'test'
AND inherited = false
AND attname = 'id';
-- warn: mcv cast failure
-- warn: mcv cast failure, mcv-pair fails, rest get set
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'id'::name,
'inherited', false::boolean,
'version', 150000::integer,
'null_frac', 0.9::real,
'avg_width', 10::integer,
'n_distinct', -0.4::real,
'null_frac', 0.23::real,
'most_common_vals', '{2,four,3}'::text,
'most_common_freqs', '{0.3,0.25,0.05}'::real[]
);
@ -324,10 +388,6 @@ SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'id'::name,
'inherited', false::boolean,
'version', 150000::integer,
'null_frac', 0.1::real,
'avg_width', 1::integer,
'n_distinct', -0.1::real,
'most_common_vals', '{2,1,3}'::text,
'most_common_freqs', '{0.3,0.25,0.05}'::real[]
);
@ -339,15 +399,12 @@ AND tablename = 'test'
AND inherited = false
AND attname = 'id';
-- warn: NULL in histogram array
-- warn: NULL in histogram array, rest get set
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'id'::name,
'inherited', false::boolean,
'version', 150000::integer,
'null_frac', 0.2::real,
'avg_width', 2::integer,
'n_distinct', -0.2::real,
'null_frac', 0.24::real,
'histogram_bounds', '{1,NULL,3,4}'::text
);
@ -363,11 +420,8 @@ SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'id'::name,
'inherited', false::boolean,
'version', 150000::integer,
'null_frac', 0.3::real,
'avg_width', 3::integer,
'n_distinct', -0.3::real,
'histogram_bounds', '{1,2,3,4}'::text );
'histogram_bounds', '{1,2,3,4}'::text
);
SELECT *
FROM pg_stats
@ -376,16 +430,13 @@ AND tablename = 'test'
AND inherited = false
AND attname = 'id';
-- warn: elem_count_histogram null element
-- warn: elem_count_histogram null element, rest get set
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'tags'::name,
'inherited', false::boolean,
'version', 150000::integer,
'null_frac', 0.4::real,
'avg_width', 5::integer,
'n_distinct', -0.4::real,
'elem_count_histogram', '{1,1,NULL,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}'::real[]
'null_frac', 0.25::real,
'elem_count_histogram', '{1,1,NULL,1,1,1,1,1}'::real[]
);
SELECT *
@ -400,10 +451,7 @@ SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'tags'::name,
'inherited', false::boolean,
'version', 150000::integer,
'null_frac', 0.5::real,
'avg_width', 6::integer,
'n_distinct', -0.55::real,
'null_frac', 0.26::real,
'elem_count_histogram', '{1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}'::real[]
);
@ -414,15 +462,12 @@ AND tablename = 'test'
AND inherited = false
AND attname = 'tags';
-- range stats on a scalar type
-- warn: range stats on a scalar type, rest ok
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'id'::name,
'inherited', false::boolean,
'version', 150000::integer,
'null_frac', 0.6::real,
'avg_width', 7::integer,
'n_distinct', -0.15::real,
'null_frac', 0.27::real,
'range_empty_frac', 0.5::real,
'range_length_histogram', '{399,499,Infinity}'::text
);
@ -434,15 +479,12 @@ AND tablename = 'test'
AND inherited = false
AND attname = 'id';
-- warn: range_empty_frac range_length_hist null mismatch
-- warn: range_empty_frac range_length_hist null mismatch, rest ok
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'arange'::name,
'inherited', false::boolean,
'version', 150000::integer,
'null_frac', 0.7::real,
'avg_width', 8::integer,
'n_distinct', -0.25::real,
'null_frac', 0.28::real,
'range_length_histogram', '{399,499,Infinity}'::text
);
@ -453,15 +495,12 @@ AND tablename = 'test'
AND inherited = false
AND attname = 'arange';
-- warn: range_empty_frac range_length_hist null mismatch part 2
-- warn: range_empty_frac range_length_hist null mismatch part 2, rest ok
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'arange'::name,
'inherited', false::boolean,
'version', 150000::integer,
'null_frac', 0.8::real,
'avg_width', 9::integer,
'n_distinct', -0.35::real,
'null_frac', 0.29::real,
'range_empty_frac', 0.5::real
);
@ -477,10 +516,6 @@ SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'arange'::name,
'inherited', false::boolean,
'version', 150000::integer,
'null_frac', 0.9::real,
'avg_width', 1::integer,
'n_distinct', -0.19::real,
'range_empty_frac', 0.5::real,
'range_length_histogram', '{399,499,Infinity}'::text
);
@ -492,15 +527,12 @@ AND tablename = 'test'
AND inherited = false
AND attname = 'arange';
-- warn: range bounds histogram on scalar
-- warn: range bounds histogram on scalar, rest ok
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'id'::name,
'inherited', false::boolean,
'version', 150000::integer,
'null_frac', 0.1::real,
'avg_width', 2::integer,
'n_distinct', -0.29::real,
'null_frac', 0.31::real,
'range_bounds_histogram', '{"[-1,1)","[0,4)","[1,4)","[1,100)"}'::text
);
@ -516,10 +548,6 @@ SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'arange'::name,
'inherited', false::boolean,
'version', 150000::integer,
'null_frac', 0.2::real,
'avg_width', 3::integer,
'n_distinct', -0.39::real,
'range_bounds_histogram', '{"[-1,1)","[0,4)","[1,4)","[1,100)"}'::text
);
@ -530,23 +558,14 @@ AND tablename = 'test'
AND inherited = false
AND attname = 'arange';
-- warn: cannot set most_common_elems for range type
-- warn: cannot set most_common_elems for range type, rest ok
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'arange'::name,
'inherited', false::boolean,
'null_frac', 0.5::real,
'avg_width', 2::integer,
'n_distinct', -0.1::real,
'most_common_vals', '{"[2,3)","[1,2)","[3,4)"}'::text,
'most_common_freqs', '{0.3,0.25,0.05}'::real[],
'histogram_bounds', '{"[1,2)","[2,3)","[3,4)","[4,5)"}'::text,
'correlation', 1.1::real,
'null_frac', 0.32::real,
'most_common_elems', '{3,1}'::text,
'most_common_elem_freqs', '{0.3,0.2,0.2,0.3,0.0}'::real[],
'range_empty_frac', -0.5::real,
'range_length_histogram', '{399,499,Infinity}'::text,
'range_bounds_histogram', '{"[-1,1)","[0,4)","[1,4)","[1,100)"}'::text
'most_common_elem_freqs', '{0.3,0.2,0.2,0.3,0.0}'::real[]
);
SELECT *
@ -556,14 +575,12 @@ AND tablename = 'test'
AND inherited = false
AND attname = 'arange';
-- warn: scalars can't have mcelem
-- warn: scalars can't have mcelem, rest ok
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'id'::name,
'inherited', false::boolean,
'null_frac', 0.5::real,
'avg_width', 2::integer,
'n_distinct', -0.1::real,
'null_frac', 0.33::real,
'most_common_elems', '{1,3}'::text,
'most_common_elem_freqs', '{0.3,0.2,0.2,0.3,0.0}'::real[]
);
@ -575,14 +592,12 @@ AND tablename = 'test'
AND inherited = false
AND attname = 'id';
-- warn: mcelem / mcelem mismatch
-- warn: mcelem / mcelem mismatch, rest ok
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'tags'::name,
'inherited', false::boolean,
'null_frac', 0.5::real,
'avg_width', 2::integer,
'n_distinct', -0.1::real,
'null_frac', 0.34::real,
'most_common_elems', '{one,two}'::text
);
@ -593,25 +608,27 @@ AND tablename = 'test'
AND inherited = false
AND attname = 'tags';
-- warn: mcelem / mcelem null mismatch part 2
-- warn: mcelem / mcelem null mismatch part 2, rest ok
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'tags'::name,
'inherited', false::boolean,
'null_frac', 0.5::real,
'avg_width', 2::integer,
'n_distinct', -0.1::real,
'null_frac', 0.35::real,
'most_common_elem_freqs', '{0.3,0.2,0.2,0.3}'::real[]
);
SELECT *
FROM pg_stats
WHERE schemaname = 'stats_import'
AND tablename = 'test'
AND inherited = false
AND attname = 'tags';
-- ok: mcelem
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'tags'::name,
'inherited', false::boolean,
'null_frac', 0.5::real,
'avg_width', 2::integer,
'n_distinct', -0.1::real,
'most_common_elems', '{one,three}'::text,
'most_common_elem_freqs', '{0.3,0.2,0.2,0.3,0.0}'::real[]
);
@ -623,15 +640,13 @@ AND tablename = 'test'
AND inherited = false
AND attname = 'tags';
-- warn: scalars can't have elem_count_histogram
-- warn: scalars can't have elem_count_histogram, rest ok
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'id'::name,
'inherited', false::boolean,
'null_frac', 0.5::real,
'avg_width', 2::integer,
'n_distinct', -0.1::real,
'elem_count_histogram', '{1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1}'::real[]
'null_frac', 0.36::real,
'elem_count_histogram', '{1,1,1,1,1,1,1,1,1,1}'::real[]
);
SELECT *
@ -641,32 +656,6 @@ AND tablename = 'test'
AND inherited = false
AND attname = 'id';
-- warn: too many stat kinds
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'arange'::name,
'inherited', false::boolean,
'version', 150000::integer,
'null_frac', 0.5::real,
'avg_width', 2::integer,
'n_distinct', -0.1::real,
'most_common_vals', '{"[2,3)","[1,3)","[3,9)"}'::text,
'most_common_freqs', '{0.3,0.25,0.05}'::real[],
'histogram_bounds', '{"[1,2)","[2,3)","[3,4)","[4,)"}'::text,
'correlation', 1.1::real,
'most_common_elems', '{3,1}'::text,
'most_common_elem_freqs', '{0.3,0.2,0.2,0.3,0.0}'::real[],
'range_empty_frac', -0.5::real,
'range_length_histogram', '{399,499,Infinity}'::text,
'range_bounds_histogram', '{"[-1,1)","[0,4)","[1,4)","[1,100)"}'::text);
SELECT *
FROM pg_stats
WHERE schemaname = 'stats_import'
AND tablename = 'test'
AND inherited = false
AND attname = 'arange';
--
-- Test the ability to exactly copy data from one table to an identical table,
-- correctly reconstructing the stakind order as well as the staopN and
@ -686,16 +675,6 @@ SELECT 4, 'four', NULL, int4range(0,100), NULL;
CREATE INDEX is_odd ON stats_import.test(((comp).a % 2 = 1));
-- restoring stats on index
SELECT * FROM pg_catalog.pg_restore_relation_stats(
'relation', 'stats_import.is_odd'::regclass,
'version', '180000'::integer,
'relpages', '11'::integer,
'reltuples', '10000'::real,
'relallvisible', '0'::integer,
'relallfrozen', '0'::integer
);
-- Generate statistics on table with data
ANALYZE stats_import.test;
@ -848,160 +827,24 @@ FROM pg_statistic s
JOIN pg_attribute a ON a.attrelid = s.starelid AND a.attnum = s.staattnum
WHERE s.starelid = 'stats_import.is_odd'::regclass;
-- ok
SELECT pg_catalog.pg_clear_attribute_stats(
relation => 'stats_import.test'::regclass,
attname => 'arange'::name,
inherited => false::boolean);
--
-- Negative tests
--
--- error: relation is wrong type
SELECT pg_catalog.pg_restore_relation_stats(
'relation', 0::oid,
'relpages', 17::integer,
'reltuples', 400.0::real,
'relallvisible', 4::integer,
'relallfrozen', 3::integer);
--- error: relation not found
SELECT pg_catalog.pg_restore_relation_stats(
'relation', 0::regclass,
'relpages', 17::integer,
'reltuples', 400.0::real,
'relallvisible', 4::integer,
'relallfrozen', 3::integer);
-- warn and error: unrecognized argument name
SELECT pg_restore_relation_stats(
'relation', '0'::oid::regclass,
'version', 150000::integer,
'relpages', '17'::integer,
'reltuples', 400::real,
'nope', 4::integer);
-- error: argument name is NULL
SELECT pg_restore_relation_stats(
'relation', '0'::oid::regclass,
'version', 150000::integer,
NULL, '17'::integer,
'reltuples', 400::real,
'relallvisible', 4::integer,
'relallfrozen', 3::integer);
-- error: argument name is an integer
SELECT pg_restore_relation_stats(
'relation', '0'::oid::regclass,
'version', 150000::integer,
17, '17'::integer,
'reltuples', 400::real,
'relallvisible', 4::integer,
'relallfrozen', 3::integer);
-- error: odd number of variadic arguments cannot be pairs
SELECT pg_restore_relation_stats(
'relation', '0'::oid::regclass,
'version', 150000::integer,
'relpages', '17'::integer,
'reltuples', 400::real,
'relallfrozen', 3::integer,
'relallvisible');
-- error: object doesn't exist
SELECT pg_restore_relation_stats(
'relation', '0'::oid::regclass,
'version', 150000::integer,
'relpages', '17'::integer,
'reltuples', 400::real,
'relallvisible', 4::integer,
'relallfrozen', 3::integer);
-- error: object does not exist
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', '0'::oid::regclass,
'attname', 'id'::name,
'inherited', false::boolean,
'version', 150000::integer,
'null_frac', 0.1::real,
'avg_width', 2::integer,
'n_distinct', 0.3::real);
-- error: relation null
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', NULL::oid,
'attname', 'id'::name,
'inherited', false::boolean,
'version', 150000::integer,
'null_frac', 0.1::real,
'avg_width', 2::integer,
'n_distinct', 0.3::real);
-- error: missing attname
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', NULL::name,
'inherited', false::boolean,
'version', 150000::integer,
'null_frac', 0.1::real,
'avg_width', 2::integer,
'n_distinct', 0.3::real);
-- error: both attname and attnum
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'id'::name,
'attnum', 1::smallint,
'inherited', false::boolean,
'version', 150000::integer,
'null_frac', 0.1::real,
'avg_width', 2::integer,
'n_distinct', 0.3::real);
-- error: attname doesn't exist
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'nope'::name,
'inherited', false::boolean,
'version', 150000::integer,
'null_frac', 0.1::real,
'avg_width', 2::integer,
'n_distinct', 0.3::real);
-- error: attribute is system column
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'xmin'::name,
'inherited', false::boolean,
'null_frac', 0.1::real,
'avg_width', 2::integer,
'n_distinct', 0.3::real);
-- error: inherited null
SELECT pg_catalog.pg_restore_attribute_stats(
'relation', 'stats_import.test'::regclass,
'attname', 'id'::name,
'inherited', NULL::boolean,
'version', 150000::integer,
'null_frac', 0.1::real,
'avg_width', 2::integer,
'n_distinct', 0.3::real);
-- error: relation not found
SELECT pg_catalog.pg_clear_relation_stats(
relation => 'stats_import.nope'::regclass);
-- attribute stats exist before a clear, but not after
SELECT COUNT(*)
FROM pg_stats
WHERE schemaname = 'stats_import'
AND tablename = 'test'
AND inherited = false
AND attname = 'arange';
-- error: attribute is system column
SELECT pg_catalog.pg_clear_attribute_stats(
relation => 'stats_import.test'::regclass,
attname => 'ctid'::name,
attname => 'arange'::name,
inherited => false::boolean);
-- error: attname doesn't exist
SELECT pg_catalog.pg_clear_attribute_stats(
relation => 'stats_import.test'::regclass,
attname => 'nope'::name,
inherited => false::boolean);
SELECT COUNT(*)
FROM pg_stats
WHERE schemaname = 'stats_import'
AND tablename = 'test'
AND inherited = false
AND attname = 'arange';
DROP SCHEMA stats_import CASCADE;

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