path: root/src/test/regress/expected/stats_import.out

CREATE SCHEMA stats_import;
CREATE TYPE stats_import.complex_type AS (
    a integer,
    b real,
    c text,
    d date,
    e jsonb);
CREATE TABLE stats_import.test(
    id INTEGER PRIMARY KEY,
    name text,
    comp stats_import.complex_type,
    arange int4range,
    tags text[]
) WITH (autovacuum_enabled = false);
-- starting stats
SELECT relpages, reltuples, relallvisible
FROM pg_class
WHERE oid = 'stats_import.test'::regclass;
 relpages | reltuples | relallvisible 
----------+-----------+---------------
        0 |        -1 |             0
(1 row)

-- error: regclass not found
SELECT
    pg_catalog.pg_set_relation_stats(
        relation => 0::Oid,
        relpages => 17::integer,
        reltuples => 400.0::real,
        relallvisible => 4::integer);
ERROR:  could not open relation with OID 0
-- relpages default
SELECT
    pg_catalog.pg_set_relation_stats(
        relation => 'stats_import.test'::regclass,
        relpages => NULL::integer,
        reltuples => 400.0::real,
        relallvisible => 4::integer);
 pg_set_relation_stats 
-----------------------
 
(1 row)

-- reltuples default
SELECT
    pg_catalog.pg_set_relation_stats(
        relation => 'stats_import.test'::regclass,
        relpages => 17::integer,
        reltuples => NULL::real,
        relallvisible => 4::integer);
 pg_set_relation_stats 
-----------------------
 
(1 row)

-- relallvisible default
SELECT
    pg_catalog.pg_set_relation_stats(
        relation => 'stats_import.test'::regclass,
        relpages => 17::integer,
        reltuples => 400.0::real,
        relallvisible => NULL::integer);
 pg_set_relation_stats 
-----------------------
 
(1 row)

-- named arguments
SELECT
    pg_catalog.pg_set_relation_stats(
        relation => 'stats_import.test'::regclass,
        relpages => 17::integer,
        reltuples => 400.0::real,
        relallvisible => 4::integer);
 pg_set_relation_stats 
-----------------------
 
(1 row)

SELECT relpages, reltuples, relallvisible
FROM pg_class
WHERE oid = 'stats_import.test'::regclass;
 relpages | reltuples | relallvisible 
----------+-----------+---------------
       17 |       400 |             4
(1 row)

-- positional arguments
SELECT
    pg_catalog.pg_set_relation_stats(
        'stats_import.test'::regclass,
        18::integer,
        401.0::real,
        5::integer);
 pg_set_relation_stats 
-----------------------
 
(1 row)

SELECT relpages, reltuples, relallvisible
FROM pg_class
WHERE oid = 'stats_import.test'::regclass;
 relpages | reltuples | relallvisible 
----------+-----------+---------------
       18 |       401 |             5
(1 row)

-- clear
SELECT
    pg_catalog.pg_clear_relation_stats(
        'stats_import.test'::regclass);
 pg_clear_relation_stats 
-------------------------
 
(1 row)

SELECT relpages, reltuples, relallvisible
FROM pg_class
WHERE oid = 'stats_import.test'::regclass;
 relpages | reltuples | relallvisible 
----------+-----------+---------------
        0 |        -1 |             0
(1 row)

-- 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(
        'stats_import.testseq'::regclass);
ERROR:  cannot modify statistics for relation "testseq"
DETAIL:  This operation is not supported for sequences.
SELECT
    pg_catalog.pg_clear_relation_stats(
        'stats_import.testview'::regclass);
ERROR:  cannot modify statistics for relation "testview"
DETAIL:  This operation is not supported for views.
--  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
  PARTITION OF stats_import.part_parent
  FOR VALUES FROM (0) TO (10)
  WITH (autovacuum_enabled = false);
ANALYZE stats_import.part_parent;
SELECT relpages
FROM pg_class
WHERE oid = 'stats_import.part_parent'::regclass;
 relpages 
----------
       -1
(1 row)

-- although partitioned tables have no storage, setting relpages to a
-- positive value is still allowed
SELECT
    pg_catalog.pg_set_relation_stats(
        relation => 'stats_import.part_parent'::regclass,
        relpages => 2::integer);
 pg_set_relation_stats 
-----------------------
 
(1 row)

-- nothing stops us from setting it to -1
SELECT
    pg_catalog.pg_set_relation_stats(
        relation => 'stats_import.part_parent'::regclass,
        relpages => -1::integer);
 pg_set_relation_stats 
-----------------------
 
(1 row)

-- error: object doesn't exist
SELECT pg_catalog.pg_set_attribute_stats(
    relation => '0'::oid,
    attname => 'id'::name,
    inherited => false::boolean,
    null_frac => 0.1::real,
    avg_width => 2::integer,
    n_distinct => 0.3::real);
ERROR:  could not open relation with OID 0
-- error: relation null
SELECT pg_catalog.pg_set_attribute_stats(
    relation => NULL::oid,
    attname => 'id'::name,
    inherited => false::boolean,
    null_frac => 0.1::real,
    avg_width => 2::integer,
    n_distinct => 0.3::real);
ERROR:  "relation" cannot be NULL
-- error: attname null
SELECT pg_catalog.pg_set_attribute_stats(
    relation => 'stats_import.test'::regclass,
    attname => NULL::name,
    inherited => false::boolean,
    null_frac => 0.1::real,
    avg_width => 2::integer,
    n_distinct => 0.3::real);
ERROR:  "attname" cannot be NULL
-- error: inherited null
SELECT pg_catalog.pg_set_attribute_stats(
    relation => 'stats_import.test'::regclass,
    attname => 'id'::name,
    inherited => NULL::boolean,
    null_frac => 0.1::real,
    avg_width => 2::integer,
    n_distinct => 0.3::real);
ERROR:  "inherited" cannot be NULL
-- error: null_frac null
SELECT pg_catalog.pg_set_attribute_stats(
    relation => 'stats_import.test'::regclass,
    attname => 'id'::name,
    inherited => false::boolean,
    null_frac => NULL::real,
    avg_width => 2::integer,
    n_distinct => 0.3::real);
 pg_set_attribute_stats 
------------------------
 
(1 row)

-- error: avg_width null
SELECT pg_catalog.pg_set_attribute_stats(
    relation => 'stats_import.test'::regclass,
    attname => 'id'::name,
    inherited => false::boolean,
    null_frac => 0.1::real,
    avg_width => NULL::integer,
    n_distinct => 0.3::real);
 pg_set_attribute_stats 
------------------------
 
(1 row)

-- error: avg_width null
SELECT pg_catalog.pg_set_attribute_stats(
    relation => 'stats_import.test'::regclass,
    attname => 'id'::name,
    inherited => false::boolean,
    null_frac => 0.1::real,
    avg_width => 2::integer,
    n_distinct => NULL::real);
 pg_set_attribute_stats 
------------------------
 
(1 row)

-- ok: no stakinds
SELECT pg_catalog.pg_set_attribute_stats(
    relation => 'stats_import.test'::regclass,
    attname => 'id'::name,
    inherited => false::boolean,
    null_frac => 0.1::real,
    avg_width => 2::integer,
    n_distinct => 0.3::real);
 pg_set_attribute_stats 
------------------------
 
(1 row)

SELECT stanullfrac, stawidth, stadistinct
FROM pg_statistic
WHERE starelid = 'stats_import.test'::regclass;
 stanullfrac | stawidth | stadistinct 
-------------+----------+-------------
         0.1 |        2 |         0.3
(1 row)

-- error: mcv / mcf null mismatch
SELECT pg_catalog.pg_set_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,
    most_common_freqs => '{0.1,0.2,0.3}'::real[]
    );
ERROR:  "most_common_vals" must be specified when "most_common_freqs" is specified
-- error: mcv / mcf null mismatch part 2
SELECT pg_catalog.pg_set_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,
    most_common_vals => '{1,2,3}'::text
    );
ERROR:  "most_common_freqs" must be specified when "most_common_vals" is specified
-- error: mcv / mcf type mismatch
SELECT pg_catalog.pg_set_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,
    most_common_vals => '{2023-09-30,2024-10-31,3}'::text,
    most_common_freqs => '{0.2,0.1}'::real[]
    );
ERROR:  invalid input syntax for type integer: "2023-09-30"
-- warning: mcv cast failure
SELECT pg_catalog.pg_set_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,
    most_common_vals => '{2,four,3}'::text,
    most_common_freqs => '{0.3,0.25,0.05}'::real[]
    );
ERROR:  invalid input syntax for type integer: "four"
-- ok: mcv+mcf
SELECT pg_catalog.pg_set_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,
    most_common_vals => '{2,1,3}'::text,
    most_common_freqs => '{0.3,0.25,0.05}'::real[]
    );
 pg_set_attribute_stats 
------------------------
 
(1 row)

SELECT *
FROM pg_stats
WHERE schemaname = 'stats_import'
AND tablename = 'test'
AND inherited = false
AND attname = 'id';
  schemaname  | tablename | attname | inherited | null_frac | avg_width | n_distinct | most_common_vals | most_common_freqs | histogram_bounds | correlation | most_common_elems | most_common_elem_freqs | elem_count_histogram | range_length_histogram | range_empty_frac | range_bounds_histogram 
--------------+-----------+---------+-----------+-----------+-----------+------------+------------------+-------------------+------------------+-------------+-------------------+------------------------+----------------------+------------------------+------------------+------------------------
 stats_import | test      | id      | f         |       0.5 |         2 |       -0.1 | {2,1,3}          | {0.3,0.25,0.05}   |                  |             |                   |                        |                      |                        |                  | 
(1 row)

-- error: histogram elements null value
-- this generates no warnings, but perhaps it should
SELECT pg_catalog.pg_set_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,
    histogram_bounds => '{1,NULL,3,4}'::text
    );
ERROR:  "histogram_bounds" array cannot contain NULL values
-- ok: histogram_bounds
SELECT pg_catalog.pg_set_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,
    histogram_bounds => '{1,2,3,4}'::text
    );
 pg_set_attribute_stats 
------------------------
 
(1 row)

SELECT *
FROM pg_stats
WHERE schemaname = 'stats_import'
AND tablename = 'test'
AND inherited = false
AND attname = 'id';
  schemaname  | tablename | attname | inherited | null_frac | avg_width | n_distinct | most_common_vals | most_common_freqs | histogram_bounds | correlation | most_common_elems | most_common_elem_freqs | elem_count_histogram | range_length_histogram | range_empty_frac | range_bounds_histogram 
--------------+-----------+---------+-----------+-----------+-----------+------------+------------------+-------------------+------------------+-------------+-------------------+------------------------+----------------------+------------------------+------------------+------------------------
 stats_import | test      | id      | f         |       0.5 |         2 |       -0.1 | {2,1,3}          | {0.3,0.25,0.05}   | {1,2,3,4}        |             |                   |                        |                      |                        |                  | 
(1 row)

-- ok: correlation
SELECT pg_catalog.pg_set_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,
    correlation => 0.5::real);
 pg_set_attribute_stats 
------------------------
 
(1 row)

SELECT *
FROM pg_stats
WHERE schemaname = 'stats_import'
AND tablename = 'test'
AND inherited = false
AND attname = 'id';
  schemaname  | tablename | attname | inherited | null_frac | avg_width | n_distinct | most_common_vals | most_common_freqs | histogram_bounds | correlation | most_common_elems | most_common_elem_freqs | elem_count_histogram | range_length_histogram | range_empty_frac | range_bounds_histogram 
--------------+-----------+---------+-----------+-----------+-----------+------------+------------------+-------------------+------------------+-------------+-------------------+------------------------+----------------------+------------------------+------------------+------------------------
 stats_import | test      | id      | f         |       0.5 |         2 |       -0.1 | {2,1,3}          | {0.3,0.25,0.05}   | {1,2,3,4}        |         0.5 |                   |                        |                      |                        |                  | 
(1 row)

-- error: scalars can't have mcelem
SELECT pg_catalog.pg_set_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,
    most_common_elems => '{1,3}'::text,
    most_common_elem_freqs => '{0.3,0.2,0.2,0.3,0.0}'::real[]
    );
ERROR:  unable to determine element type of attribute "id"
DETAIL:  Cannot set STATISTIC_KIND_MCELEM or STATISTIC_KIND_DECHIST.
-- error: mcelem / mcelem mismatch
SELECT pg_catalog.pg_set_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,two}'::text
    );
ERROR:  "most_common_elem_freqs" must be specified when "most_common_elems" is specified
-- error: mcelem / mcelem null mismatch part 2
SELECT pg_catalog.pg_set_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_elem_freqs => '{0.3,0.2,0.2,0.3}'::real[]
    );
ERROR:  "most_common_elems" must be specified when "most_common_elem_freqs" is specified
-- ok: mcelem
SELECT pg_catalog.pg_set_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[]
    );
 pg_set_attribute_stats 
------------------------
 
(1 row)

SELECT *
FROM pg_stats
WHERE schemaname = 'stats_import'
AND tablename = 'test'
AND inherited = false
AND attname = 'tags';
  schemaname  | tablename | attname | inherited | null_frac | avg_width | n_distinct | most_common_vals | most_common_freqs | histogram_bounds | correlation | most_common_elems | most_common_elem_freqs | elem_count_histogram | range_length_histogram | range_empty_frac | range_bounds_histogram 
--------------+-----------+---------+-----------+-----------+-----------+------------+------------------+-------------------+------------------+-------------+-------------------+------------------------+----------------------+------------------------+------------------+------------------------
 stats_import | test      | tags    | f         |       0.5 |         2 |       -0.1 |                  |                   |                  |             | {one,three}       | {0.3,0.2,0.2,0.3,0}    |                      |                        |                  | 
(1 row)

-- error: scalars can't have elem_count_histogram
SELECT pg_catalog.pg_set_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[]
    );
ERROR:  unable to determine element type of attribute "id"
DETAIL:  Cannot set STATISTIC_KIND_MCELEM or STATISTIC_KIND_DECHIST.
-- error: elem_count_histogram null element
SELECT pg_catalog.pg_set_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,
    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[]
    );
ERROR:  "elem_count_histogram" array cannot contain NULL values
-- ok: elem_count_histogram
SELECT pg_catalog.pg_set_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,
    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[]
    );
 pg_set_attribute_stats 
------------------------
 
(1 row)

SELECT *
FROM pg_stats
WHERE schemaname = 'stats_import'
AND tablename = 'test'
AND inherited = false
AND attname = 'tags';
  schemaname  | tablename | attname | inherited | null_frac | avg_width | n_distinct | most_common_vals | most_common_freqs | histogram_bounds | correlation | most_common_elems | most_common_elem_freqs |                                                                                            elem_count_histogram                                                                                             | range_length_histogram | range_empty_frac | range_bounds_histogram 
--------------+-----------+---------+-----------+-----------+-----------+------------+------------------+-------------------+------------------+-------------+-------------------+------------------------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+------------------------+------------------+------------------------
 stats_import | test      | tags    | f         |       0.5 |         2 |       -0.1 |                  |                   |                  |             | {one,three}       | {0.3,0.2,0.2,0.3,0}    | {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} |                        |                  | 
(1 row)

-- error: scalars can't have range stats
SELECT pg_catalog.pg_set_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,
    range_empty_frac => 0.5::real,
    range_length_histogram => '{399,499,Infinity}'::text
    );
ERROR:  attribute "id" is not a range type
DETAIL:  Cannot set STATISTIC_KIND_RANGE_LENGTH_HISTOGRAM or STATISTIC_KIND_BOUNDS_HISTOGRAM.
-- error: range_empty_frac range_length_hist null mismatch
SELECT pg_catalog.pg_set_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,
    range_length_histogram => '{399,499,Infinity}'::text
    );
ERROR:  "range_empty_frac" must be specified when "range_length_histogram" is specified
-- error: range_empty_frac range_length_hist null mismatch part 2
SELECT pg_catalog.pg_set_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,
    range_empty_frac => 0.5::real
    );
ERROR:  "range_length_histogram" must be specified when "range_empty_frac" is specified
-- ok: range_empty_frac + range_length_hist
SELECT pg_catalog.pg_set_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,
    range_empty_frac => 0.5::real,
    range_length_histogram => '{399,499,Infinity}'::text
    );
 pg_set_attribute_stats 
------------------------
 
(1 row)

SELECT *
FROM pg_stats
WHERE schemaname = 'stats_import'
AND tablename = 'test'
AND inherited = false
AND attname = 'arange';
  schemaname  | tablename | attname | inherited | null_frac | avg_width | n_distinct | most_common_vals | most_common_freqs | histogram_bounds | correlation | most_common_elems | most_common_elem_freqs | elem_count_histogram | range_length_histogram | range_empty_frac | range_bounds_histogram 
--------------+-----------+---------+-----------+-----------+-----------+------------+------------------+-------------------+------------------+-------------+-------------------+------------------------+----------------------+------------------------+------------------+------------------------
 stats_import | test      | arange  | f         |       0.5 |         2 |       -0.1 |                  |                   |                  |             |                   |                        |                      | {399,499,Infinity}     |              0.5 | 
(1 row)

-- error: scalars can't have range stats
SELECT pg_catalog.pg_set_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,
    range_bounds_histogram => '{"[-1,1)","[0,4)","[1,4)","[1,100)"}'::text
    );
ERROR:  attribute "id" is not a range type
DETAIL:  Cannot set STATISTIC_KIND_RANGE_LENGTH_HISTOGRAM or STATISTIC_KIND_BOUNDS_HISTOGRAM.
-- ok: range_bounds_histogram
SELECT pg_catalog.pg_set_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,
    range_bounds_histogram => '{"[-1,1)","[0,4)","[1,4)","[1,100)"}'::text
    );
 pg_set_attribute_stats 
------------------------
 
(1 row)

SELECT *
FROM pg_stats
WHERE schemaname = 'stats_import'
AND tablename = 'test'
AND inherited = false
AND attname = 'arange';
  schemaname  | tablename | attname | inherited | null_frac | avg_width | n_distinct | most_common_vals | most_common_freqs | histogram_bounds | correlation | most_common_elems | most_common_elem_freqs | elem_count_histogram | range_length_histogram | range_empty_frac |        range_bounds_histogram        
--------------+-----------+---------+-----------+-----------+-----------+------------+------------------+-------------------+------------------+-------------+-------------------+------------------------+----------------------+------------------------+------------------+--------------------------------------
 stats_import | test      | arange  | f         |       0.5 |         2 |       -0.1 |                  |                   |                  |             |                   |                        |                      | {399,499,Infinity}     |              0.5 | {"[-1,1)","[0,4)","[1,4)","[1,100)"}
(1 row)

-- error: cannot set most_common_elems for range type
SELECT pg_catalog.pg_set_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,
    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
    );
ERROR:  unable to determine element type of attribute "arange"
DETAIL:  Cannot set STATISTIC_KIND_MCELEM or STATISTIC_KIND_DECHIST.
--
-- 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
-- stacollN values. Because oids are not stable across databases, we can only
-- test this when the source and destination are on the same database
-- instance. For that reason, we borrow and adapt a query found in fe_utils
-- and used by pg_dump/pg_upgrade.
--
INSERT INTO stats_import.test
SELECT 1, 'one', (1, 1.1, 'ONE', '2001-01-01', '{ "xkey": "xval" }')::stats_import.complex_type, int4range(1,4), array['red','green']
UNION ALL
SELECT 2, 'two', (2, 2.2, 'TWO', '2002-02-02', '[true, 4, "six"]')::stats_import.complex_type,  int4range(1,4), array['blue','yellow']
UNION ALL
SELECT 3, 'tre', (3, 3.3, 'TRE', '2003-03-03', NULL)::stats_import.complex_type, int4range(-1,1), array['"orange"', 'purple', 'cyan']
UNION ALL
SELECT 4, 'four', NULL, int4range(0,100), NULL;
CREATE INDEX is_odd ON stats_import.test(((comp).a % 2 = 1));
-- Generate statistics on table with data
ANALYZE stats_import.test;
CREATE TABLE stats_import.test_clone ( LIKE stats_import.test )
    WITH (autovacuum_enabled = false);
CREATE INDEX is_odd_clone ON stats_import.test_clone(((comp).a % 2 = 1));
--
-- Copy stats from test to test_clone, and is_odd to is_odd_clone
--
SELECT s.schemaname, s.tablename, s.attname, s.inherited
FROM pg_catalog.pg_stats AS s
CROSS JOIN LATERAL
    pg_catalog.pg_set_attribute_stats(
        relation => ('stats_import.' || s.tablename || '_clone')::regclass::oid,
        attname => s.attname,
        inherited => s.inherited,
        null_frac => s.null_frac,
        avg_width => s.avg_width,
        n_distinct => s.n_distinct,
        most_common_vals => s.most_common_vals::text,
        most_common_freqs => s.most_common_freqs,
        histogram_bounds => s.histogram_bounds::text,
        correlation => s.correlation,
        most_common_elems => s.most_common_elems::text,
        most_common_elem_freqs => s.most_common_elem_freqs,
        elem_count_histogram => s.elem_count_histogram,
        range_bounds_histogram => s.range_bounds_histogram::text,
        range_empty_frac => s.range_empty_frac,
        range_length_histogram => s.range_length_histogram::text) AS r
WHERE s.schemaname = 'stats_import'
AND s.tablename IN ('test', 'is_odd')
ORDER BY s.tablename, s.attname, s.inherited;
  schemaname  | tablename | attname | inherited 
--------------+-----------+---------+-----------
 stats_import | is_odd    | expr    | f
 stats_import | test      | arange  | f
 stats_import | test      | comp    | f
 stats_import | test      | id      | f
 stats_import | test      | name    | f
 stats_import | test      | tags    | f
(6 rows)

SELECT c.relname, COUNT(*) AS num_stats
FROM pg_class AS c
JOIN pg_statistic s ON s.starelid = c.oid
WHERE c.relnamespace = 'stats_import'::regnamespace
AND c.relname IN ('test', 'test_clone', 'is_odd', 'is_odd_clone')
GROUP BY c.relname
ORDER BY c.relname;
   relname    | num_stats 
--------------+-----------
 is_odd       |         1
 is_odd_clone |         1
 test         |         5
 test_clone   |         5
(4 rows)

-- check test minus test_clone
SELECT
    a.attname, s.stainherit, s.stanullfrac, s.stawidth, s.stadistinct,
    s.stakind1, s.stakind2, s.stakind3, s.stakind4, s.stakind5,
    s.staop1, s.staop2, s.staop3, s.staop4, s.staop5,
    s.stacoll1, s.stacoll2, s.stacoll3, s.stacoll4, s.stacoll5,
    s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4, s.stanumbers5,
    s.stavalues1::text AS sv1, s.stavalues2::text AS sv2,
    s.stavalues3::text AS sv3, s.stavalues4::text AS sv4,
    s.stavalues5::text AS sv5, 'test' AS direction
FROM pg_statistic s
JOIN pg_attribute a ON a.attrelid = s.starelid AND a.attnum = s.staattnum
WHERE s.starelid = 'stats_import.test'::regclass
EXCEPT
SELECT
    a.attname, s.stainherit, s.stanullfrac, s.stawidth, s.stadistinct,
    s.stakind1, s.stakind2, s.stakind3, s.stakind4, s.stakind5,
    s.staop1, s.staop2, s.staop3, s.staop4, s.staop5,
    s.stacoll1, s.stacoll2, s.stacoll3, s.stacoll4, s.stacoll5,
    s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4, s.stanumbers5,
    s.stavalues1::text AS sv1, s.stavalues2::text AS sv2,
    s.stavalues3::text AS sv3, s.stavalues4::text AS sv4,
    s.stavalues5::text AS sv5, 'test' AS direction
FROM pg_statistic s
JOIN pg_attribute a ON a.attrelid = s.starelid AND a.attnum = s.staattnum
WHERE s.starelid = 'stats_import.test_clone'::regclass;
 attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stacoll1 | stacoll2 | stacoll3 | stacoll4 | stacoll5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | sv1 | sv2 | sv3 | sv4 | sv5 | direction 
---------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+----------+----------+----------+----------+----------+-------------+-------------+-------------+-------------+-------------+-----+-----+-----+-----+-----+-----------
(0 rows)

-- check test_clone minus test
SELECT
    a.attname, s.stainherit, s.stanullfrac, s.stawidth, s.stadistinct,
    s.stakind1, s.stakind2, s.stakind3, s.stakind4, s.stakind5,
    s.staop1, s.staop2, s.staop3, s.staop4, s.staop5,
    s.stacoll1, s.stacoll2, s.stacoll3, s.stacoll4, s.stacoll5,
    s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4, s.stanumbers5,
    s.stavalues1::text AS sv1, s.stavalues2::text AS sv2,
    s.stavalues3::text AS sv3, s.stavalues4::text AS sv4,
    s.stavalues5::text AS sv5, 'test_clone' AS direction
FROM pg_statistic s
JOIN pg_attribute a ON a.attrelid = s.starelid AND a.attnum = s.staattnum
WHERE s.starelid = 'stats_import.test_clone'::regclass
EXCEPT
SELECT
    a.attname, s.stainherit, s.stanullfrac, s.stawidth, s.stadistinct,
    s.stakind1, s.stakind2, s.stakind3, s.stakind4, s.stakind5,
    s.staop1, s.staop2, s.staop3, s.staop4, s.staop5,
    s.stacoll1, s.stacoll2, s.stacoll3, s.stacoll4, s.stacoll5,
    s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4, s.stanumbers5,
    s.stavalues1::text AS sv1, s.stavalues2::text AS sv2,
    s.stavalues3::text AS sv3, s.stavalues4::text AS sv4,
    s.stavalues5::text AS sv5, 'test_clone' AS direction
FROM pg_statistic s
JOIN pg_attribute a ON a.attrelid = s.starelid AND a.attnum = s.staattnum
WHERE s.starelid = 'stats_import.test'::regclass;
 attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stacoll1 | stacoll2 | stacoll3 | stacoll4 | stacoll5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | sv1 | sv2 | sv3 | sv4 | sv5 | direction 
---------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+----------+----------+----------+----------+----------+-------------+-------------+-------------+-------------+-------------+-----+-----+-----+-----+-----+-----------
(0 rows)

-- check is_odd minus is_odd_clone
SELECT
    a.attname, s.stainherit, s.stanullfrac, s.stawidth, s.stadistinct,
    s.stakind1, s.stakind2, s.stakind3, s.stakind4, s.stakind5,
    s.staop1, s.staop2, s.staop3, s.staop4, s.staop5,
    s.stacoll1, s.stacoll2, s.stacoll3, s.stacoll4, s.stacoll5,
    s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4, s.stanumbers5,
    s.stavalues1::text AS sv1, s.stavalues2::text AS sv2,
    s.stavalues3::text AS sv3, s.stavalues4::text AS sv4,
    s.stavalues5::text AS sv5, 'is_odd' AS direction
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
EXCEPT
SELECT
    a.attname, s.stainherit, s.stanullfrac, s.stawidth, s.stadistinct,
    s.stakind1, s.stakind2, s.stakind3, s.stakind4, s.stakind5,
    s.staop1, s.staop2, s.staop3, s.staop4, s.staop5,
    s.stacoll1, s.stacoll2, s.stacoll3, s.stacoll4, s.stacoll5,
    s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4, s.stanumbers5,
    s.stavalues1::text AS sv1, s.stavalues2::text AS sv2,
    s.stavalues3::text AS sv3, s.stavalues4::text AS sv4,
    s.stavalues5::text AS sv5, 'is_odd' AS direction
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_clone'::regclass;
 attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stacoll1 | stacoll2 | stacoll3 | stacoll4 | stacoll5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | sv1 | sv2 | sv3 | sv4 | sv5 | direction 
---------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+----------+----------+----------+----------+----------+-------------+-------------+-------------+-------------+-------------+-----+-----+-----+-----+-----+-----------
(0 rows)

-- check is_odd_clone minus is_odd
SELECT
    a.attname, s.stainherit, s.stanullfrac, s.stawidth, s.stadistinct,
    s.stakind1, s.stakind2, s.stakind3, s.stakind4, s.stakind5,
    s.staop1, s.staop2, s.staop3, s.staop4, s.staop5,
    s.stacoll1, s.stacoll2, s.stacoll3, s.stacoll4, s.stacoll5,
    s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4, s.stanumbers5,
    s.stavalues1::text AS sv1, s.stavalues2::text AS sv2,
    s.stavalues3::text AS sv3, s.stavalues4::text AS sv4,
    s.stavalues5::text AS sv5, 'is_odd_clone' AS direction
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_clone'::regclass
EXCEPT
SELECT
    a.attname, s.stainherit, s.stanullfrac, s.stawidth, s.stadistinct,
    s.stakind1, s.stakind2, s.stakind3, s.stakind4, s.stakind5,
    s.staop1, s.staop2, s.staop3, s.staop4, s.staop5,
    s.stacoll1, s.stacoll2, s.stacoll3, s.stacoll4, s.stacoll5,
    s.stanumbers1, s.stanumbers2, s.stanumbers3, s.stanumbers4, s.stanumbers5,
    s.stavalues1::text AS sv1, s.stavalues2::text AS sv2,
    s.stavalues3::text AS sv3, s.stavalues4::text AS sv4,
    s.stavalues5::text AS sv5, 'is_odd_clone' AS direction
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;
 attname | stainherit | stanullfrac | stawidth | stadistinct | stakind1 | stakind2 | stakind3 | stakind4 | stakind5 | staop1 | staop2 | staop3 | staop4 | staop5 | stacoll1 | stacoll2 | stacoll3 | stacoll4 | stacoll5 | stanumbers1 | stanumbers2 | stanumbers3 | stanumbers4 | stanumbers5 | sv1 | sv2 | sv3 | sv4 | sv5 | direction 
---------+------------+-------------+----------+-------------+----------+----------+----------+----------+----------+--------+--------+--------+--------+--------+----------+----------+----------+----------+----------+-------------+-------------+-------------+-------------+-------------+-----+-----+-----+-----+-----+-----------
(0 rows)

DROP SCHEMA stats_import CASCADE;
NOTICE:  drop cascades to 6 other objects
DETAIL:  drop cascades to type stats_import.complex_type
drop cascades to table stats_import.test
drop cascades to sequence stats_import.testseq
drop cascades to view stats_import.testview
drop cascades to table stats_import.part_parent
drop cascades to table stats_import.test_clone