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File Name : system_views.sql

/*
 * PostgreSQL System Views
 *
 * Copyright (c) 1996-2020, PostgreSQL Global Development Group
 *
 * src/backend/catalog/system_views.sql
 *
 * Note: this file is read in single-user -j mode, which means that the
 * command terminator is semicolon-newline-newline; whenever the backend
 * sees that, it stops and executes what it's got.  If you write a lot of
 * statements without empty lines between, they'll all get quoted to you
 * in any error message about one of them, so don't do that.  Also, you
 * cannot write a semicolon immediately followed by an empty line in a
 * string literal (including a function body!) or a multiline comment.
 */

CREATE VIEW pg_roles AS
    SELECT
        rolname,
        rolsuper,
        rolinherit,
        rolcreaterole,
        rolcreatedb,
        rolcanlogin,
        rolreplication,
        rolconnlimit,
        '********'::text as rolpassword,
        rolvaliduntil,
        rolbypassrls,
        setconfig as rolconfig,
        pg_authid.oid
    FROM pg_authid LEFT JOIN pg_db_role_setting s
    ON (pg_authid.oid = setrole AND setdatabase = 0);

CREATE VIEW pg_shadow AS
    SELECT
        rolname AS usename,
        pg_authid.oid AS usesysid,
        rolcreatedb AS usecreatedb,
        rolsuper AS usesuper,
        rolreplication AS userepl,
        rolbypassrls AS usebypassrls,
        rolpassword AS passwd,
        rolvaliduntil AS valuntil,
        setconfig AS useconfig
    FROM pg_authid LEFT JOIN pg_db_role_setting s
    ON (pg_authid.oid = setrole AND setdatabase = 0)
    WHERE rolcanlogin;

REVOKE ALL on pg_shadow FROM public;

CREATE VIEW pg_group AS
    SELECT
        rolname AS groname,
        oid AS grosysid,
        ARRAY(SELECT member FROM pg_auth_members WHERE roleid = oid) AS grolist
    FROM pg_authid
    WHERE NOT rolcanlogin;

CREATE VIEW pg_user AS
    SELECT
        usename,
        usesysid,
        usecreatedb,
        usesuper,
        userepl,
        usebypassrls,
        '********'::text as passwd,
        valuntil,
        useconfig
    FROM pg_shadow;

CREATE VIEW pg_policies AS
    SELECT
        N.nspname AS schemaname,
        C.relname AS tablename,
        pol.polname AS policyname,
        CASE
            WHEN pol.polpermissive THEN
                'PERMISSIVE'
            ELSE
                'RESTRICTIVE'
        END AS permissive,
        CASE
            WHEN pol.polroles = '{0}' THEN
                string_to_array('public', '')
            ELSE
                ARRAY
                (
                    SELECT rolname
                    FROM pg_catalog.pg_authid
                    WHERE oid = ANY (pol.polroles) ORDER BY 1
                )
        END AS roles,
        CASE pol.polcmd
            WHEN 'r' THEN 'SELECT'
            WHEN 'a' THEN 'INSERT'
            WHEN 'w' THEN 'UPDATE'
            WHEN 'd' THEN 'DELETE'
            WHEN '*' THEN 'ALL'
        END AS cmd,
        pg_catalog.pg_get_expr(pol.polqual, pol.polrelid) AS qual,
        pg_catalog.pg_get_expr(pol.polwithcheck, pol.polrelid) AS with_check
    FROM pg_catalog.pg_policy pol
    JOIN pg_catalog.pg_class C ON (C.oid = pol.polrelid)
    LEFT JOIN pg_catalog.pg_namespace N ON (N.oid = C.relnamespace);

CREATE VIEW pg_rules AS
    SELECT
        N.nspname AS schemaname,
        C.relname AS tablename,
        R.rulename AS rulename,
        pg_get_ruledef(R.oid) AS definition
    FROM (pg_rewrite R JOIN pg_class C ON (C.oid = R.ev_class))
        LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
    WHERE R.rulename != '_RETURN';

CREATE VIEW pg_views AS
    SELECT
        N.nspname AS schemaname,
        C.relname AS viewname,
        pg_get_userbyid(C.relowner) AS viewowner,
        pg_get_viewdef(C.oid) AS definition
    FROM pg_class C LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
    WHERE C.relkind = 'v';

CREATE VIEW pg_tables AS
    SELECT
        N.nspname AS schemaname,
        C.relname AS tablename,
        pg_get_userbyid(C.relowner) AS tableowner,
        T.spcname AS tablespace,
        C.relhasindex AS hasindexes,
        C.relhasrules AS hasrules,
        C.relhastriggers AS hastriggers,
        C.relrowsecurity AS rowsecurity
    FROM pg_class C LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
         LEFT JOIN pg_tablespace T ON (T.oid = C.reltablespace)
    WHERE C.relkind IN ('r', 'p');

CREATE VIEW pg_matviews AS
    SELECT
        N.nspname AS schemaname,
        C.relname AS matviewname,
        pg_get_userbyid(C.relowner) AS matviewowner,
        T.spcname AS tablespace,
        C.relhasindex AS hasindexes,
        C.relispopulated AS ispopulated,
        pg_get_viewdef(C.oid) AS definition
    FROM pg_class C LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
         LEFT JOIN pg_tablespace T ON (T.oid = C.reltablespace)
    WHERE C.relkind = 'm';

CREATE VIEW pg_indexes AS
    SELECT
        N.nspname AS schemaname,
        C.relname AS tablename,
        I.relname AS indexname,
        T.spcname AS tablespace,
        pg_get_indexdef(I.oid) AS indexdef
    FROM pg_index X JOIN pg_class C ON (C.oid = X.indrelid)
         JOIN pg_class I ON (I.oid = X.indexrelid)
         LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
         LEFT JOIN pg_tablespace T ON (T.oid = I.reltablespace)
    WHERE C.relkind IN ('r', 'm', 'p') AND I.relkind IN ('i', 'I');

CREATE OR REPLACE VIEW pg_sequences AS
    SELECT
        N.nspname AS schemaname,
        C.relname AS sequencename,
        pg_get_userbyid(C.relowner) AS sequenceowner,
        S.seqtypid::regtype AS data_type,
        S.seqstart AS start_value,
        S.seqmin AS min_value,
        S.seqmax AS max_value,
        S.seqincrement AS increment_by,
        S.seqcycle AS cycle,
        S.seqcache AS cache_size,
        CASE
            WHEN has_sequence_privilege(C.oid, 'SELECT,USAGE'::text)
                THEN pg_sequence_last_value(C.oid)
            ELSE NULL
        END AS last_value
    FROM pg_sequence S JOIN pg_class C ON (C.oid = S.seqrelid)
         LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
    WHERE NOT pg_is_other_temp_schema(N.oid)
          AND relkind = 'S';

CREATE VIEW pg_stats WITH (security_barrier) AS
    SELECT
        nspname AS schemaname,
        relname AS tablename,
        attname AS attname,
        stainherit AS inherited,
        stanullfrac AS null_frac,
        stawidth AS avg_width,
        stadistinct AS n_distinct,
        CASE
            WHEN stakind1 = 1 THEN stavalues1
            WHEN stakind2 = 1 THEN stavalues2
            WHEN stakind3 = 1 THEN stavalues3
            WHEN stakind4 = 1 THEN stavalues4
            WHEN stakind5 = 1 THEN stavalues5
        END AS most_common_vals,
        CASE
            WHEN stakind1 = 1 THEN stanumbers1
            WHEN stakind2 = 1 THEN stanumbers2
            WHEN stakind3 = 1 THEN stanumbers3
            WHEN stakind4 = 1 THEN stanumbers4
            WHEN stakind5 = 1 THEN stanumbers5
        END AS most_common_freqs,
        CASE
            WHEN stakind1 = 2 THEN stavalues1
            WHEN stakind2 = 2 THEN stavalues2
            WHEN stakind3 = 2 THEN stavalues3
            WHEN stakind4 = 2 THEN stavalues4
            WHEN stakind5 = 2 THEN stavalues5
        END AS histogram_bounds,
        CASE
            WHEN stakind1 = 3 THEN stanumbers1[1]
            WHEN stakind2 = 3 THEN stanumbers2[1]
            WHEN stakind3 = 3 THEN stanumbers3[1]
            WHEN stakind4 = 3 THEN stanumbers4[1]
            WHEN stakind5 = 3 THEN stanumbers5[1]
        END AS correlation,
        CASE
            WHEN stakind1 = 4 THEN stavalues1
            WHEN stakind2 = 4 THEN stavalues2
            WHEN stakind3 = 4 THEN stavalues3
            WHEN stakind4 = 4 THEN stavalues4
            WHEN stakind5 = 4 THEN stavalues5
        END AS most_common_elems,
        CASE
            WHEN stakind1 = 4 THEN stanumbers1
            WHEN stakind2 = 4 THEN stanumbers2
            WHEN stakind3 = 4 THEN stanumbers3
            WHEN stakind4 = 4 THEN stanumbers4
            WHEN stakind5 = 4 THEN stanumbers5
        END AS most_common_elem_freqs,
        CASE
            WHEN stakind1 = 5 THEN stanumbers1
            WHEN stakind2 = 5 THEN stanumbers2
            WHEN stakind3 = 5 THEN stanumbers3
            WHEN stakind4 = 5 THEN stanumbers4
            WHEN stakind5 = 5 THEN stanumbers5
        END AS elem_count_histogram
    FROM pg_statistic s JOIN pg_class c ON (c.oid = s.starelid)
         JOIN pg_attribute a ON (c.oid = attrelid AND attnum = s.staattnum)
         LEFT JOIN pg_namespace n ON (n.oid = c.relnamespace)
    WHERE NOT attisdropped
    AND has_column_privilege(c.oid, a.attnum, 'select')
    AND (c.relrowsecurity = false OR NOT row_security_active(c.oid));

REVOKE ALL on pg_statistic FROM public;

CREATE VIEW pg_stats_ext WITH (security_barrier) AS
    SELECT cn.nspname AS schemaname,
           c.relname AS tablename,
           sn.nspname AS statistics_schemaname,
           s.stxname AS statistics_name,
           pg_get_userbyid(s.stxowner) AS statistics_owner,
           ( SELECT array_agg(a.attname ORDER BY a.attnum)
             FROM unnest(s.stxkeys) k
                  JOIN pg_attribute a
                       ON (a.attrelid = s.stxrelid AND a.attnum = k)
           ) AS attnames,
           s.stxkind AS kinds,
           sd.stxdndistinct AS n_distinct,
           sd.stxddependencies AS dependencies,
           m.most_common_vals,
           m.most_common_val_nulls,
           m.most_common_freqs,
           m.most_common_base_freqs
    FROM pg_statistic_ext s JOIN pg_class c ON (c.oid = s.stxrelid)
         JOIN pg_statistic_ext_data sd ON (s.oid = sd.stxoid)
         LEFT JOIN pg_namespace cn ON (cn.oid = c.relnamespace)
         LEFT JOIN pg_namespace sn ON (sn.oid = s.stxnamespace)
         LEFT JOIN LATERAL
                   ( SELECT array_agg(values) AS most_common_vals,
                            array_agg(nulls) AS most_common_val_nulls,
                            array_agg(frequency) AS most_common_freqs,
                            array_agg(base_frequency) AS most_common_base_freqs
                     FROM pg_mcv_list_items(sd.stxdmcv)
                   ) m ON sd.stxdmcv IS NOT NULL
    WHERE NOT EXISTS
              ( SELECT 1
                FROM unnest(stxkeys) k
                     JOIN pg_attribute a
                          ON (a.attrelid = s.stxrelid AND a.attnum = k)
                WHERE NOT has_column_privilege(c.oid, a.attnum, 'select') )
    AND (c.relrowsecurity = false OR NOT row_security_active(c.oid));

-- unprivileged users may read pg_statistic_ext but not pg_statistic_ext_data
REVOKE ALL on pg_statistic_ext_data FROM public;

CREATE VIEW pg_publication_tables AS
    SELECT
        P.pubname AS pubname,
        N.nspname AS schemaname,
        C.relname AS tablename
    FROM pg_publication P,
         LATERAL pg_get_publication_tables(P.pubname) GPT,
         pg_class C JOIN pg_namespace N ON (N.oid = C.relnamespace)
    WHERE C.oid = GPT.relid;

CREATE VIEW pg_locks AS
    SELECT * FROM pg_lock_status() AS L;

CREATE VIEW pg_cursors AS
    SELECT * FROM pg_cursor() AS C;

CREATE VIEW pg_available_extensions AS
    SELECT E.name, E.default_version, X.extversion AS installed_version,
           E.comment
      FROM pg_available_extensions() AS E
           LEFT JOIN pg_extension AS X ON E.name = X.extname;

CREATE VIEW pg_available_extension_versions AS
    SELECT E.name, E.version, (X.extname IS NOT NULL) AS installed,
           E.superuser, E.trusted, E.relocatable,
           E.schema, E.requires, E.comment
      FROM pg_available_extension_versions() AS E
           LEFT JOIN pg_extension AS X
             ON E.name = X.extname AND E.version = X.extversion;

CREATE VIEW pg_prepared_xacts AS
    SELECT P.transaction, P.gid, P.prepared,
           U.rolname AS owner, D.datname AS database
    FROM pg_prepared_xact() AS P
         LEFT JOIN pg_authid U ON P.ownerid = U.oid
         LEFT JOIN pg_database D ON P.dbid = D.oid;

CREATE VIEW pg_prepared_statements AS
    SELECT * FROM pg_prepared_statement() AS P;

CREATE VIEW pg_seclabels AS
SELECT
    l.objoid, l.classoid, l.objsubid,
    CASE WHEN rel.relkind IN ('r', 'p') THEN 'table'::text
         WHEN rel.relkind = 'v' THEN 'view'::text
         WHEN rel.relkind = 'm' THEN 'materialized view'::text
         WHEN rel.relkind = 'S' THEN 'sequence'::text
         WHEN rel.relkind = 'f' THEN 'foreign table'::text END AS objtype,
    rel.relnamespace AS objnamespace,
    CASE WHEN pg_table_is_visible(rel.oid)
         THEN quote_ident(rel.relname)
         ELSE quote_ident(nsp.nspname) || '.' || quote_ident(rel.relname)
         END AS objname,
    l.provider, l.label
FROM
    pg_seclabel l
    JOIN pg_class rel ON l.classoid = rel.tableoid AND l.objoid = rel.oid
    JOIN pg_namespace nsp ON rel.relnamespace = nsp.oid
WHERE
    l.objsubid = 0
UNION ALL
SELECT
    l.objoid, l.classoid, l.objsubid,
    'column'::text AS objtype,
    rel.relnamespace AS objnamespace,
    CASE WHEN pg_table_is_visible(rel.oid)
         THEN quote_ident(rel.relname)
         ELSE quote_ident(nsp.nspname) || '.' || quote_ident(rel.relname)
         END || '.' || att.attname AS objname,
    l.provider, l.label
FROM
    pg_seclabel l
    JOIN pg_class rel ON l.classoid = rel.tableoid AND l.objoid = rel.oid
    JOIN pg_attribute att
         ON rel.oid = att.attrelid AND l.objsubid = att.attnum
    JOIN pg_namespace nsp ON rel.relnamespace = nsp.oid
WHERE
    l.objsubid != 0
UNION ALL
SELECT
    l.objoid, l.classoid, l.objsubid,
    CASE pro.prokind
            WHEN 'a' THEN 'aggregate'::text
            WHEN 'f' THEN 'function'::text
            WHEN 'p' THEN 'procedure'::text
            WHEN 'w' THEN 'window'::text END AS objtype,
    pro.pronamespace AS objnamespace,
    CASE WHEN pg_function_is_visible(pro.oid)
         THEN quote_ident(pro.proname)
         ELSE quote_ident(nsp.nspname) || '.' || quote_ident(pro.proname)
    END || '(' || pg_catalog.pg_get_function_arguments(pro.oid) || ')' AS objname,
    l.provider, l.label
FROM
    pg_seclabel l
    JOIN pg_proc pro ON l.classoid = pro.tableoid AND l.objoid = pro.oid
    JOIN pg_namespace nsp ON pro.pronamespace = nsp.oid
WHERE
    l.objsubid = 0
UNION ALL
SELECT
    l.objoid, l.classoid, l.objsubid,
    CASE WHEN typ.typtype = 'd' THEN 'domain'::text
    ELSE 'type'::text END AS objtype,
    typ.typnamespace AS objnamespace,
    CASE WHEN pg_type_is_visible(typ.oid)
    THEN quote_ident(typ.typname)
    ELSE quote_ident(nsp.nspname) || '.' || quote_ident(typ.typname)
    END AS objname,
    l.provider, l.label
FROM
    pg_seclabel l
    JOIN pg_type typ ON l.classoid = typ.tableoid AND l.objoid = typ.oid
    JOIN pg_namespace nsp ON typ.typnamespace = nsp.oid
WHERE
    l.objsubid = 0
UNION ALL
SELECT
    l.objoid, l.classoid, l.objsubid,
    'large object'::text AS objtype,
    NULL::oid AS objnamespace,
    l.objoid::text AS objname,
    l.provider, l.label
FROM
    pg_seclabel l
    JOIN pg_largeobject_metadata lom ON l.objoid = lom.oid
WHERE
    l.classoid = 'pg_catalog.pg_largeobject'::regclass AND l.objsubid = 0
UNION ALL
SELECT
    l.objoid, l.classoid, l.objsubid,
    'language'::text AS objtype,
    NULL::oid AS objnamespace,
    quote_ident(lan.lanname) AS objname,
    l.provider, l.label
FROM
    pg_seclabel l
    JOIN pg_language lan ON l.classoid = lan.tableoid AND l.objoid = lan.oid
WHERE
    l.objsubid = 0
UNION ALL
SELECT
    l.objoid, l.classoid, l.objsubid,
    'schema'::text AS objtype,
    nsp.oid AS objnamespace,
    quote_ident(nsp.nspname) AS objname,
    l.provider, l.label
FROM
    pg_seclabel l
    JOIN pg_namespace nsp ON l.classoid = nsp.tableoid AND l.objoid = nsp.oid
WHERE
    l.objsubid = 0
UNION ALL
SELECT
    l.objoid, l.classoid, l.objsubid,
    'event trigger'::text AS objtype,
    NULL::oid AS objnamespace,
    quote_ident(evt.evtname) AS objname,
    l.provider, l.label
FROM
    pg_seclabel l
    JOIN pg_event_trigger evt ON l.classoid = evt.tableoid
        AND l.objoid = evt.oid
WHERE
    l.objsubid = 0
UNION ALL
SELECT
    l.objoid, l.classoid, l.objsubid,
    'publication'::text AS objtype,
    NULL::oid AS objnamespace,
    quote_ident(p.pubname) AS objname,
    l.provider, l.label
FROM
    pg_seclabel l
    JOIN pg_publication p ON l.classoid = p.tableoid AND l.objoid = p.oid
WHERE
    l.objsubid = 0
UNION ALL
SELECT
    l.objoid, l.classoid, 0::int4 AS objsubid,
    'subscription'::text AS objtype,
    NULL::oid AS objnamespace,
    quote_ident(s.subname) AS objname,
    l.provider, l.label
FROM
    pg_shseclabel l
    JOIN pg_subscription s ON l.classoid = s.tableoid AND l.objoid = s.oid
UNION ALL
SELECT
    l.objoid, l.classoid, 0::int4 AS objsubid,
    'database'::text AS objtype,
    NULL::oid AS objnamespace,
    quote_ident(dat.datname) AS objname,
    l.provider, l.label
FROM
    pg_shseclabel l
    JOIN pg_database dat ON l.classoid = dat.tableoid AND l.objoid = dat.oid
UNION ALL
SELECT
    l.objoid, l.classoid, 0::int4 AS objsubid,
    'tablespace'::text AS objtype,
    NULL::oid AS objnamespace,
    quote_ident(spc.spcname) AS objname,
    l.provider, l.label
FROM
    pg_shseclabel l
    JOIN pg_tablespace spc ON l.classoid = spc.tableoid AND l.objoid = spc.oid
UNION ALL
SELECT
    l.objoid, l.classoid, 0::int4 AS objsubid,
    'role'::text AS objtype,
    NULL::oid AS objnamespace,
    quote_ident(rol.rolname) AS objname,
    l.provider, l.label
FROM
    pg_shseclabel l
    JOIN pg_authid rol ON l.classoid = rol.tableoid AND l.objoid = rol.oid;

CREATE VIEW pg_settings AS
    SELECT * FROM pg_show_all_settings() AS A;

CREATE RULE pg_settings_u AS
    ON UPDATE TO pg_settings
    WHERE new.name = old.name DO
    SELECT set_config(old.name, new.setting, 'f');

CREATE RULE pg_settings_n AS
    ON UPDATE TO pg_settings
    DO INSTEAD NOTHING;

GRANT SELECT, UPDATE ON pg_settings TO PUBLIC;

CREATE VIEW pg_file_settings AS
   SELECT * FROM pg_show_all_file_settings() AS A;

REVOKE ALL on pg_file_settings FROM PUBLIC;
REVOKE EXECUTE ON FUNCTION pg_show_all_file_settings() FROM PUBLIC;

CREATE VIEW pg_hba_file_rules AS
   SELECT * FROM pg_hba_file_rules() AS A;

REVOKE ALL on pg_hba_file_rules FROM PUBLIC;
REVOKE EXECUTE ON FUNCTION pg_hba_file_rules() FROM PUBLIC;

CREATE VIEW pg_timezone_abbrevs AS
    SELECT * FROM pg_timezone_abbrevs();

CREATE VIEW pg_timezone_names AS
    SELECT * FROM pg_timezone_names();

CREATE VIEW pg_config AS
    SELECT * FROM pg_config();

REVOKE ALL on pg_config FROM PUBLIC;
REVOKE EXECUTE ON FUNCTION pg_config() FROM PUBLIC;

CREATE VIEW pg_shmem_allocations AS
    SELECT * FROM pg_get_shmem_allocations();

REVOKE ALL ON pg_shmem_allocations FROM PUBLIC;
REVOKE EXECUTE ON FUNCTION pg_get_shmem_allocations() FROM PUBLIC;

-- Statistics views

CREATE VIEW pg_stat_all_tables AS
    SELECT
            C.oid AS relid,
            N.nspname AS schemaname,
            C.relname AS relname,
            pg_stat_get_numscans(C.oid) AS seq_scan,
            pg_stat_get_tuples_returned(C.oid) AS seq_tup_read,
            sum(pg_stat_get_numscans(I.indexrelid))::bigint AS idx_scan,
            sum(pg_stat_get_tuples_fetched(I.indexrelid))::bigint +
            pg_stat_get_tuples_fetched(C.oid) AS idx_tup_fetch,
            pg_stat_get_tuples_inserted(C.oid) AS n_tup_ins,
            pg_stat_get_tuples_updated(C.oid) AS n_tup_upd,
            pg_stat_get_tuples_deleted(C.oid) AS n_tup_del,
            pg_stat_get_tuples_hot_updated(C.oid) AS n_tup_hot_upd,
            pg_stat_get_live_tuples(C.oid) AS n_live_tup,
            pg_stat_get_dead_tuples(C.oid) AS n_dead_tup,
            pg_stat_get_mod_since_analyze(C.oid) AS n_mod_since_analyze,
            pg_stat_get_ins_since_vacuum(C.oid) AS n_ins_since_vacuum,
            pg_stat_get_last_vacuum_time(C.oid) as last_vacuum,
            pg_stat_get_last_autovacuum_time(C.oid) as last_autovacuum,
            pg_stat_get_last_analyze_time(C.oid) as last_analyze,
            pg_stat_get_last_autoanalyze_time(C.oid) as last_autoanalyze,
            pg_stat_get_vacuum_count(C.oid) AS vacuum_count,
            pg_stat_get_autovacuum_count(C.oid) AS autovacuum_count,
            pg_stat_get_analyze_count(C.oid) AS analyze_count,
            pg_stat_get_autoanalyze_count(C.oid) AS autoanalyze_count
    FROM pg_class C LEFT JOIN
         pg_index I ON C.oid = I.indrelid
         LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
    WHERE C.relkind IN ('r', 't', 'm')
    GROUP BY C.oid, N.nspname, C.relname;

CREATE VIEW pg_stat_xact_all_tables AS
    SELECT
            C.oid AS relid,
            N.nspname AS schemaname,
            C.relname AS relname,
            pg_stat_get_xact_numscans(C.oid) AS seq_scan,
            pg_stat_get_xact_tuples_returned(C.oid) AS seq_tup_read,
            sum(pg_stat_get_xact_numscans(I.indexrelid))::bigint AS idx_scan,
            sum(pg_stat_get_xact_tuples_fetched(I.indexrelid))::bigint +
            pg_stat_get_xact_tuples_fetched(C.oid) AS idx_tup_fetch,
            pg_stat_get_xact_tuples_inserted(C.oid) AS n_tup_ins,
            pg_stat_get_xact_tuples_updated(C.oid) AS n_tup_upd,
            pg_stat_get_xact_tuples_deleted(C.oid) AS n_tup_del,
            pg_stat_get_xact_tuples_hot_updated(C.oid) AS n_tup_hot_upd
    FROM pg_class C LEFT JOIN
         pg_index I ON C.oid = I.indrelid
         LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
    WHERE C.relkind IN ('r', 't', 'm')
    GROUP BY C.oid, N.nspname, C.relname;

CREATE VIEW pg_stat_sys_tables AS
    SELECT * FROM pg_stat_all_tables
    WHERE schemaname IN ('pg_catalog', 'information_schema') OR
          schemaname ~ '^pg_toast';

CREATE VIEW pg_stat_xact_sys_tables AS
    SELECT * FROM pg_stat_xact_all_tables
    WHERE schemaname IN ('pg_catalog', 'information_schema') OR
          schemaname ~ '^pg_toast';

CREATE VIEW pg_stat_user_tables AS
    SELECT * FROM pg_stat_all_tables
    WHERE schemaname NOT IN ('pg_catalog', 'information_schema') AND
          schemaname !~ '^pg_toast';

CREATE VIEW pg_stat_xact_user_tables AS
    SELECT * FROM pg_stat_xact_all_tables
    WHERE schemaname NOT IN ('pg_catalog', 'information_schema') AND
          schemaname !~ '^pg_toast';

CREATE VIEW pg_statio_all_tables AS
    SELECT
            C.oid AS relid,
            N.nspname AS schemaname,
            C.relname AS relname,
            pg_stat_get_blocks_fetched(C.oid) -
                    pg_stat_get_blocks_hit(C.oid) AS heap_blks_read,
            pg_stat_get_blocks_hit(C.oid) AS heap_blks_hit,
            sum(pg_stat_get_blocks_fetched(I.indexrelid) -
                    pg_stat_get_blocks_hit(I.indexrelid))::bigint AS idx_blks_read,
            sum(pg_stat_get_blocks_hit(I.indexrelid))::bigint AS idx_blks_hit,
            pg_stat_get_blocks_fetched(T.oid) -
                    pg_stat_get_blocks_hit(T.oid) AS toast_blks_read,
            pg_stat_get_blocks_hit(T.oid) AS toast_blks_hit,
            pg_stat_get_blocks_fetched(X.indexrelid) -
                    pg_stat_get_blocks_hit(X.indexrelid) AS tidx_blks_read,
            pg_stat_get_blocks_hit(X.indexrelid) AS tidx_blks_hit
    FROM pg_class C LEFT JOIN
            pg_index I ON C.oid = I.indrelid LEFT JOIN
            pg_class T ON C.reltoastrelid = T.oid LEFT JOIN
            pg_index X ON T.oid = X.indrelid
            LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
    WHERE C.relkind IN ('r', 't', 'm')
    GROUP BY C.oid, N.nspname, C.relname, T.oid, X.indexrelid;

CREATE VIEW pg_statio_sys_tables AS
    SELECT * FROM pg_statio_all_tables
    WHERE schemaname IN ('pg_catalog', 'information_schema') OR
          schemaname ~ '^pg_toast';

CREATE VIEW pg_statio_user_tables AS
    SELECT * FROM pg_statio_all_tables
    WHERE schemaname NOT IN ('pg_catalog', 'information_schema') AND
          schemaname !~ '^pg_toast';

CREATE VIEW pg_stat_all_indexes AS
    SELECT
            C.oid AS relid,
            I.oid AS indexrelid,
            N.nspname AS schemaname,
            C.relname AS relname,
            I.relname AS indexrelname,
            pg_stat_get_numscans(I.oid) AS idx_scan,
            pg_stat_get_tuples_returned(I.oid) AS idx_tup_read,
            pg_stat_get_tuples_fetched(I.oid) AS idx_tup_fetch
    FROM pg_class C JOIN
            pg_index X ON C.oid = X.indrelid JOIN
            pg_class I ON I.oid = X.indexrelid
            LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
    WHERE C.relkind IN ('r', 't', 'm');

CREATE VIEW pg_stat_sys_indexes AS
    SELECT * FROM pg_stat_all_indexes
    WHERE schemaname IN ('pg_catalog', 'information_schema') OR
          schemaname ~ '^pg_toast';

CREATE VIEW pg_stat_user_indexes AS
    SELECT * FROM pg_stat_all_indexes
    WHERE schemaname NOT IN ('pg_catalog', 'information_schema') AND
          schemaname !~ '^pg_toast';

CREATE VIEW pg_statio_all_indexes AS
    SELECT
            C.oid AS relid,
            I.oid AS indexrelid,
            N.nspname AS schemaname,
            C.relname AS relname,
            I.relname AS indexrelname,
            pg_stat_get_blocks_fetched(I.oid) -
                    pg_stat_get_blocks_hit(I.oid) AS idx_blks_read,
            pg_stat_get_blocks_hit(I.oid) AS idx_blks_hit
    FROM pg_class C JOIN
            pg_index X ON C.oid = X.indrelid JOIN
            pg_class I ON I.oid = X.indexrelid
            LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
    WHERE C.relkind IN ('r', 't', 'm');

CREATE VIEW pg_statio_sys_indexes AS
    SELECT * FROM pg_statio_all_indexes
    WHERE schemaname IN ('pg_catalog', 'information_schema') OR
          schemaname ~ '^pg_toast';

CREATE VIEW pg_statio_user_indexes AS
    SELECT * FROM pg_statio_all_indexes
    WHERE schemaname NOT IN ('pg_catalog', 'information_schema') AND
          schemaname !~ '^pg_toast';

CREATE VIEW pg_statio_all_sequences AS
    SELECT
            C.oid AS relid,
            N.nspname AS schemaname,
            C.relname AS relname,
            pg_stat_get_blocks_fetched(C.oid) -
                    pg_stat_get_blocks_hit(C.oid) AS blks_read,
            pg_stat_get_blocks_hit(C.oid) AS blks_hit
    FROM pg_class C
            LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
    WHERE C.relkind = 'S';

CREATE VIEW pg_statio_sys_sequences AS
    SELECT * FROM pg_statio_all_sequences
    WHERE schemaname IN ('pg_catalog', 'information_schema') OR
          schemaname ~ '^pg_toast';

CREATE VIEW pg_statio_user_sequences AS
    SELECT * FROM pg_statio_all_sequences
    WHERE schemaname NOT IN ('pg_catalog', 'information_schema') AND
          schemaname !~ '^pg_toast';

CREATE VIEW pg_stat_activity AS
    SELECT
            S.datid AS datid,
            D.datname AS datname,
            S.pid,
            S.leader_pid,
            S.usesysid,
            U.rolname AS usename,
            S.application_name,
            S.client_addr,
            S.client_hostname,
            S.client_port,
            S.backend_start,
            S.xact_start,
            S.query_start,
            S.state_change,
            S.wait_event_type,
            S.wait_event,
            S.state,
            S.backend_xid,
            s.backend_xmin,
            S.query,
            S.backend_type
    FROM pg_stat_get_activity(NULL) AS S
        LEFT JOIN pg_database AS D ON (S.datid = D.oid)
        LEFT JOIN pg_authid AS U ON (S.usesysid = U.oid);

CREATE VIEW pg_stat_replication AS
    SELECT
            S.pid,
            S.usesysid,
            U.rolname AS usename,
            S.application_name,
            S.client_addr,
            S.client_hostname,
            S.client_port,
            S.backend_start,
            S.backend_xmin,
            W.state,
            W.sent_lsn,
            W.write_lsn,
            W.flush_lsn,
            W.replay_lsn,
            W.write_lag,
            W.flush_lag,
            W.replay_lag,
            W.sync_priority,
            W.sync_state,
            W.reply_time
    FROM pg_stat_get_activity(NULL) AS S
        JOIN pg_stat_get_wal_senders() AS W ON (S.pid = W.pid)
        LEFT JOIN pg_authid AS U ON (S.usesysid = U.oid);

CREATE VIEW pg_stat_slru AS
    SELECT
            s.name,
            s.blks_zeroed,
            s.blks_hit,
            s.blks_read,
            s.blks_written,
            s.blks_exists,
            s.flushes,
            s.truncates,
            s.stats_reset
    FROM pg_stat_get_slru() s;

CREATE VIEW pg_stat_wal_receiver AS
    SELECT
            s.pid,
            s.status,
            s.receive_start_lsn,
            s.receive_start_tli,
            s.written_lsn,
            s.flushed_lsn,
            s.received_tli,
            s.last_msg_send_time,
            s.last_msg_receipt_time,
            s.latest_end_lsn,
            s.latest_end_time,
            s.slot_name,
            s.sender_host,
            s.sender_port,
            s.conninfo
    FROM pg_stat_get_wal_receiver() s
    WHERE s.pid IS NOT NULL;

CREATE VIEW pg_stat_subscription AS
    SELECT
            su.oid AS subid,
            su.subname,
            st.pid,
            st.relid,
            st.received_lsn,
            st.last_msg_send_time,
            st.last_msg_receipt_time,
            st.latest_end_lsn,
            st.latest_end_time
    FROM pg_subscription su
            LEFT JOIN pg_stat_get_subscription(NULL) st
                      ON (st.subid = su.oid);

CREATE VIEW pg_stat_ssl AS
    SELECT
            S.pid,
            S.ssl,
            S.sslversion AS version,
            S.sslcipher AS cipher,
            S.sslbits AS bits,
            S.sslcompression AS compression,
            S.ssl_client_dn AS client_dn,
            S.ssl_client_serial AS client_serial,
            S.ssl_issuer_dn AS issuer_dn
    FROM pg_stat_get_activity(NULL) AS S
    WHERE S.client_port IS NOT NULL;

CREATE VIEW pg_stat_gssapi AS
    SELECT
            S.pid,
            S.gss_auth AS gss_authenticated,
            S.gss_princ AS principal,
            S.gss_enc AS encrypted
    FROM pg_stat_get_activity(NULL) AS S
    WHERE S.client_port IS NOT NULL;

CREATE VIEW pg_replication_slots AS
    SELECT
            L.slot_name,
            L.plugin,
            L.slot_type,
            L.datoid,
            D.datname AS database,
            L.temporary,
            L.active,
            L.active_pid,
            L.xmin,
            L.catalog_xmin,
            L.restart_lsn,
            L.confirmed_flush_lsn,
            L.wal_status,
            L.safe_wal_size
    FROM pg_get_replication_slots() AS L
            LEFT JOIN pg_database D ON (L.datoid = D.oid);

CREATE VIEW pg_stat_database AS
    SELECT
            D.oid AS datid,
            D.datname AS datname,
                CASE
                    WHEN (D.oid = (0)::oid) THEN 0
                    ELSE pg_stat_get_db_numbackends(D.oid)
                END AS numbackends,
            pg_stat_get_db_xact_commit(D.oid) AS xact_commit,
            pg_stat_get_db_xact_rollback(D.oid) AS xact_rollback,
            pg_stat_get_db_blocks_fetched(D.oid) -
                    pg_stat_get_db_blocks_hit(D.oid) AS blks_read,
            pg_stat_get_db_blocks_hit(D.oid) AS blks_hit,
            pg_stat_get_db_tuples_returned(D.oid) AS tup_returned,
            pg_stat_get_db_tuples_fetched(D.oid) AS tup_fetched,
            pg_stat_get_db_tuples_inserted(D.oid) AS tup_inserted,
            pg_stat_get_db_tuples_updated(D.oid) AS tup_updated,
            pg_stat_get_db_tuples_deleted(D.oid) AS tup_deleted,
            pg_stat_get_db_conflict_all(D.oid) AS conflicts,
            pg_stat_get_db_temp_files(D.oid) AS temp_files,
            pg_stat_get_db_temp_bytes(D.oid) AS temp_bytes,
            pg_stat_get_db_deadlocks(D.oid) AS deadlocks,
            pg_stat_get_db_checksum_failures(D.oid) AS checksum_failures,
            pg_stat_get_db_checksum_last_failure(D.oid) AS checksum_last_failure,
            pg_stat_get_db_blk_read_time(D.oid) AS blk_read_time,
            pg_stat_get_db_blk_write_time(D.oid) AS blk_write_time,
            pg_stat_get_db_stat_reset_time(D.oid) AS stats_reset
    FROM (
        SELECT 0 AS oid, NULL::name AS datname
        UNION ALL
        SELECT oid, datname FROM pg_database
    ) D;

CREATE VIEW pg_stat_database_conflicts AS
    SELECT
            D.oid AS datid,
            D.datname AS datname,
            pg_stat_get_db_conflict_tablespace(D.oid) AS confl_tablespace,
            pg_stat_get_db_conflict_lock(D.oid) AS confl_lock,
            pg_stat_get_db_conflict_snapshot(D.oid) AS confl_snapshot,
            pg_stat_get_db_conflict_bufferpin(D.oid) AS confl_bufferpin,
            pg_stat_get_db_conflict_startup_deadlock(D.oid) AS confl_deadlock
    FROM pg_database D;

CREATE VIEW pg_stat_user_functions AS
    SELECT
            P.oid AS funcid,
            N.nspname AS schemaname,
            P.proname AS funcname,
            pg_stat_get_function_calls(P.oid) AS calls,
            pg_stat_get_function_total_time(P.oid) AS total_time,
            pg_stat_get_function_self_time(P.oid) AS self_time
    FROM pg_proc P LEFT JOIN pg_namespace N ON (N.oid = P.pronamespace)
    WHERE P.prolang != 12  -- fast check to eliminate built-in functions
          AND pg_stat_get_function_calls(P.oid) IS NOT NULL;

CREATE VIEW pg_stat_xact_user_functions AS
    SELECT
            P.oid AS funcid,
            N.nspname AS schemaname,
            P.proname AS funcname,
            pg_stat_get_xact_function_calls(P.oid) AS calls,
            pg_stat_get_xact_function_total_time(P.oid) AS total_time,
            pg_stat_get_xact_function_self_time(P.oid) AS self_time
    FROM pg_proc P LEFT JOIN pg_namespace N ON (N.oid = P.pronamespace)
    WHERE P.prolang != 12  -- fast check to eliminate built-in functions
          AND pg_stat_get_xact_function_calls(P.oid) IS NOT NULL;

CREATE VIEW pg_stat_archiver AS
    SELECT
        s.archived_count,
        s.last_archived_wal,
        s.last_archived_time,
        s.failed_count,
        s.last_failed_wal,
        s.last_failed_time,
        s.stats_reset
    FROM pg_stat_get_archiver() s;

CREATE VIEW pg_stat_bgwriter AS
    SELECT
        pg_stat_get_bgwriter_timed_checkpoints() AS checkpoints_timed,
        pg_stat_get_bgwriter_requested_checkpoints() AS checkpoints_req,
        pg_stat_get_checkpoint_write_time() AS checkpoint_write_time,
        pg_stat_get_checkpoint_sync_time() AS checkpoint_sync_time,
        pg_stat_get_bgwriter_buf_written_checkpoints() AS buffers_checkpoint,
        pg_stat_get_bgwriter_buf_written_clean() AS buffers_clean,
        pg_stat_get_bgwriter_maxwritten_clean() AS maxwritten_clean,
        pg_stat_get_buf_written_backend() AS buffers_backend,
        pg_stat_get_buf_fsync_backend() AS buffers_backend_fsync,
        pg_stat_get_buf_alloc() AS buffers_alloc,
        pg_stat_get_bgwriter_stat_reset_time() AS stats_reset;

CREATE VIEW pg_stat_progress_analyze AS
    SELECT
        S.pid AS pid, S.datid AS datid, D.datname AS datname,
        CAST(S.relid AS oid) AS relid,
        CASE S.param1 WHEN 0 THEN 'initializing'
                      WHEN 1 THEN 'acquiring sample rows'
                      WHEN 2 THEN 'acquiring inherited sample rows'
                      WHEN 3 THEN 'computing statistics'
                      WHEN 4 THEN 'computing extended statistics'
                      WHEN 5 THEN 'finalizing analyze'
                      END AS phase,
        S.param2 AS sample_blks_total,
        S.param3 AS sample_blks_scanned,
        S.param4 AS ext_stats_total,
        S.param5 AS ext_stats_computed,
        S.param6 AS child_tables_total,
        S.param7 AS child_tables_done,
        CAST(S.param8 AS oid) AS current_child_table_relid
    FROM pg_stat_get_progress_info('ANALYZE') AS S
        LEFT JOIN pg_database D ON S.datid = D.oid;

CREATE VIEW pg_stat_progress_vacuum AS
    SELECT
        S.pid AS pid, S.datid AS datid, D.datname AS datname,
        S.relid AS relid,
        CASE S.param1 WHEN 0 THEN 'initializing'
                      WHEN 1 THEN 'scanning heap'
                      WHEN 2 THEN 'vacuuming indexes'
                      WHEN 3 THEN 'vacuuming heap'
                      WHEN 4 THEN 'cleaning up indexes'
                      WHEN 5 THEN 'truncating heap'
                      WHEN 6 THEN 'performing final cleanup'
                      END AS phase,
        S.param2 AS heap_blks_total, S.param3 AS heap_blks_scanned,
        S.param4 AS heap_blks_vacuumed, S.param5 AS index_vacuum_count,
        S.param6 AS max_dead_tuples, S.param7 AS num_dead_tuples
    FROM pg_stat_get_progress_info('VACUUM') AS S
        LEFT JOIN pg_database D ON S.datid = D.oid;

CREATE VIEW pg_stat_progress_cluster AS
    SELECT
        S.pid AS pid,
        S.datid AS datid,
        D.datname AS datname,
        S.relid AS relid,
        CASE S.param1 WHEN 1 THEN 'CLUSTER'
                      WHEN 2 THEN 'VACUUM FULL'
                      END AS command,
        CASE S.param2 WHEN 0 THEN 'initializing'
                      WHEN 1 THEN 'seq scanning heap'
                      WHEN 2 THEN 'index scanning heap'
                      WHEN 3 THEN 'sorting tuples'
                      WHEN 4 THEN 'writing new heap'
                      WHEN 5 THEN 'swapping relation files'
                      WHEN 6 THEN 'rebuilding index'
                      WHEN 7 THEN 'performing final cleanup'
                      END AS phase,
        CAST(S.param3 AS oid) AS cluster_index_relid,
        S.param4 AS heap_tuples_scanned,
        S.param5 AS heap_tuples_written,
        S.param6 AS heap_blks_total,
        S.param7 AS heap_blks_scanned,
        S.param8 AS index_rebuild_count
    FROM pg_stat_get_progress_info('CLUSTER') AS S
        LEFT JOIN pg_database D ON S.datid = D.oid;

CREATE VIEW pg_stat_progress_create_index AS
    SELECT
        S.pid AS pid, S.datid AS datid, D.datname AS datname,
        S.relid AS relid,
        CAST(S.param7 AS oid) AS index_relid,
        CASE S.param1 WHEN 1 THEN 'CREATE INDEX'
                      WHEN 2 THEN 'CREATE INDEX CONCURRENTLY'
                      WHEN 3 THEN 'REINDEX'
                      WHEN 4 THEN 'REINDEX CONCURRENTLY'
                      END AS command,
        CASE S.param10 WHEN 0 THEN 'initializing'
                       WHEN 1 THEN 'waiting for writers before build'
                       WHEN 2 THEN 'building index' ||
                           COALESCE((': ' || pg_indexam_progress_phasename(S.param9::oid, S.param11)),
                                    '')
                       WHEN 3 THEN 'waiting for writers before validation'
                       WHEN 4 THEN 'index validation: scanning index'
                       WHEN 5 THEN 'index validation: sorting tuples'
                       WHEN 6 THEN 'index validation: scanning table'
                       WHEN 7 THEN 'waiting for old snapshots'
                       WHEN 8 THEN 'waiting for readers before marking dead'
                       WHEN 9 THEN 'waiting for readers before dropping'
                       END as phase,
        S.param4 AS lockers_total,
        S.param5 AS lockers_done,
        S.param6 AS current_locker_pid,
        S.param16 AS blocks_total,
        S.param17 AS blocks_done,
        S.param12 AS tuples_total,
        S.param13 AS tuples_done,
        S.param14 AS partitions_total,
        S.param15 AS partitions_done
    FROM pg_stat_get_progress_info('CREATE INDEX') AS S
        LEFT JOIN pg_database D ON S.datid = D.oid;

CREATE VIEW pg_stat_progress_basebackup AS
    SELECT
        S.pid AS pid,
        CASE S.param1 WHEN 0 THEN 'initializing'
                      WHEN 1 THEN 'waiting for checkpoint to finish'
                      WHEN 2 THEN 'estimating backup size'
                      WHEN 3 THEN 'streaming database files'
                      WHEN 4 THEN 'waiting for wal archiving to finish'
                      WHEN 5 THEN 'transferring wal files'
                      END AS phase,
        CASE S.param2 WHEN -1 THEN NULL ELSE S.param2 END AS backup_total,
        S.param3 AS backup_streamed,
        S.param4 AS tablespaces_total,
        S.param5 AS tablespaces_streamed
    FROM pg_stat_get_progress_info('BASEBACKUP') AS S;

CREATE VIEW pg_user_mappings AS
    SELECT
        U.oid       AS umid,
        S.oid       AS srvid,
        S.srvname   AS srvname,
        U.umuser    AS umuser,
        CASE WHEN U.umuser = 0 THEN
            'public'
        ELSE
            A.rolname
        END AS usename,
        CASE WHEN (U.umuser <> 0 AND A.rolname = current_user
                     AND (pg_has_role(S.srvowner, 'USAGE')
                          OR has_server_privilege(S.oid, 'USAGE')))
                    OR (U.umuser = 0 AND pg_has_role(S.srvowner, 'USAGE'))
                    OR (SELECT rolsuper FROM pg_authid WHERE rolname = current_user)
                    THEN U.umoptions
                 ELSE NULL END AS umoptions
    FROM pg_user_mapping U
        JOIN pg_foreign_server S ON (U.umserver = S.oid)
        LEFT JOIN pg_authid A ON (A.oid = U.umuser);

REVOKE ALL on pg_user_mapping FROM public;

CREATE VIEW pg_replication_origin_status AS
    SELECT *
    FROM pg_show_replication_origin_status();

REVOKE ALL ON pg_replication_origin_status FROM public;

-- All columns of pg_subscription except subconninfo are readable.
REVOKE ALL ON pg_subscription FROM public;
GRANT SELECT (subdbid, subname, subowner, subenabled, subslotname, subpublications)
    ON pg_subscription TO public;

--
-- We have a few function definitions in here, too.
-- At some point there might be enough to justify breaking them out into
-- a separate "system_functions.sql" file.
--

-- Tsearch debug function.  Defined here because it'd be pretty unwieldy
-- to put it into pg_proc.h

CREATE FUNCTION ts_debug(IN config regconfig, IN document text,
    OUT alias text,
    OUT description text,
    OUT token text,
    OUT dictionaries regdictionary[],
    OUT dictionary regdictionary,
    OUT lexemes text[])
RETURNS SETOF record AS
$$
SELECT
    tt.alias AS alias,
    tt.description AS description,
    parse.token AS token,
    ARRAY ( SELECT m.mapdict::pg_catalog.regdictionary
            FROM pg_catalog.pg_ts_config_map AS m
            WHERE m.mapcfg = $1 AND m.maptokentype = parse.tokid
            ORDER BY m.mapseqno )
    AS dictionaries,
    ( SELECT mapdict::pg_catalog.regdictionary
      FROM pg_catalog.pg_ts_config_map AS m
      WHERE m.mapcfg = $1 AND m.maptokentype = parse.tokid
      ORDER BY pg_catalog.ts_lexize(mapdict, parse.token) IS NULL, m.mapseqno
      LIMIT 1
    ) AS dictionary,
    ( SELECT pg_catalog.ts_lexize(mapdict, parse.token)
      FROM pg_catalog.pg_ts_config_map AS m
      WHERE m.mapcfg = $1 AND m.maptokentype = parse.tokid
      ORDER BY pg_catalog.ts_lexize(mapdict, parse.token) IS NULL, m.mapseqno
      LIMIT 1
    ) AS lexemes
FROM pg_catalog.ts_parse(
        (SELECT cfgparser FROM pg_catalog.pg_ts_config WHERE oid = $1 ), $2
    ) AS parse,
     pg_catalog.ts_token_type(
        (SELECT cfgparser FROM pg_catalog.pg_ts_config WHERE oid = $1 )
    ) AS tt
WHERE tt.tokid = parse.tokid
$$
LANGUAGE SQL STRICT STABLE PARALLEL SAFE;

COMMENT ON FUNCTION ts_debug(regconfig,text) IS
    'debug function for text search configuration';

CREATE FUNCTION ts_debug(IN document text,
    OUT alias text,
    OUT description text,
    OUT token text,
    OUT dictionaries regdictionary[],
    OUT dictionary regdictionary,
    OUT lexemes text[])
RETURNS SETOF record AS
$$
    SELECT * FROM pg_catalog.ts_debug( pg_catalog.get_current_ts_config(), $1);
$$
LANGUAGE SQL STRICT STABLE PARALLEL SAFE;

COMMENT ON FUNCTION ts_debug(text) IS
    'debug function for current text search configuration';

--
-- Redeclare built-in functions that need default values attached to their
-- arguments.  It's impractical to set those up directly in pg_proc.h because
-- of the complexity and platform-dependency of the expression tree
-- representation.  (Note that internal functions still have to have entries
-- in pg_proc.h; we are merely causing their proargnames and proargdefaults
-- to get filled in.)
--

CREATE OR REPLACE FUNCTION
  pg_start_backup(label text, fast boolean DEFAULT false, exclusive boolean DEFAULT true)
  RETURNS pg_lsn STRICT VOLATILE LANGUAGE internal AS 'pg_start_backup'
  PARALLEL RESTRICTED;

CREATE OR REPLACE FUNCTION pg_stop_backup (
        exclusive boolean, wait_for_archive boolean DEFAULT true,
        OUT lsn pg_lsn, OUT labelfile text, OUT spcmapfile text)
  RETURNS SETOF record STRICT VOLATILE LANGUAGE internal as 'pg_stop_backup_v2'
  PARALLEL RESTRICTED;

CREATE OR REPLACE FUNCTION
  pg_promote(wait boolean DEFAULT true, wait_seconds integer DEFAULT 60)
  RETURNS boolean STRICT VOLATILE LANGUAGE INTERNAL AS 'pg_promote'
  PARALLEL SAFE;

-- legacy definition for compatibility with 9.3
CREATE OR REPLACE FUNCTION
  json_populate_record(base anyelement, from_json json, use_json_as_text boolean DEFAULT false)
  RETURNS anyelement LANGUAGE internal STABLE AS 'json_populate_record' PARALLEL SAFE;

-- legacy definition for compatibility with 9.3
CREATE OR REPLACE FUNCTION
  json_populate_recordset(base anyelement, from_json json, use_json_as_text boolean DEFAULT false)
  RETURNS SETOF anyelement LANGUAGE internal STABLE ROWS 100  AS 'json_populate_recordset' PARALLEL SAFE;

CREATE OR REPLACE FUNCTION pg_logical_slot_get_changes(
    IN slot_name name, IN upto_lsn pg_lsn, IN upto_nchanges int, VARIADIC options text[] DEFAULT '{}',
    OUT lsn pg_lsn, OUT xid xid, OUT data text)
RETURNS SETOF RECORD
LANGUAGE INTERNAL
VOLATILE ROWS 1000 COST 1000
AS 'pg_logical_slot_get_changes';

CREATE OR REPLACE FUNCTION pg_logical_slot_peek_changes(
    IN slot_name name, IN upto_lsn pg_lsn, IN upto_nchanges int, VARIADIC options text[] DEFAULT '{}',
    OUT lsn pg_lsn, OUT xid xid, OUT data text)
RETURNS SETOF RECORD
LANGUAGE INTERNAL
VOLATILE ROWS 1000 COST 1000
AS 'pg_logical_slot_peek_changes';

CREATE OR REPLACE FUNCTION pg_logical_slot_get_binary_changes(
    IN slot_name name, IN upto_lsn pg_lsn, IN upto_nchanges int, VARIADIC options text[] DEFAULT '{}',
    OUT lsn pg_lsn, OUT xid xid, OUT data bytea)
RETURNS SETOF RECORD
LANGUAGE INTERNAL
VOLATILE ROWS 1000 COST 1000
AS 'pg_logical_slot_get_binary_changes';

CREATE OR REPLACE FUNCTION pg_logical_slot_peek_binary_changes(
    IN slot_name name, IN upto_lsn pg_lsn, IN upto_nchanges int, VARIADIC options text[] DEFAULT '{}',
    OUT lsn pg_lsn, OUT xid xid, OUT data bytea)
RETURNS SETOF RECORD
LANGUAGE INTERNAL
VOLATILE ROWS 1000 COST 1000
AS 'pg_logical_slot_peek_binary_changes';

CREATE OR REPLACE FUNCTION pg_create_physical_replication_slot(
    IN slot_name name, IN immediately_reserve boolean DEFAULT false,
    IN temporary boolean DEFAULT false,
    OUT slot_name name, OUT lsn pg_lsn)
RETURNS RECORD
LANGUAGE INTERNAL
STRICT VOLATILE
AS 'pg_create_physical_replication_slot';

CREATE OR REPLACE FUNCTION pg_create_logical_replication_slot(
    IN slot_name name, IN plugin name,
    IN temporary boolean DEFAULT false,
    OUT slot_name name, OUT lsn pg_lsn)
RETURNS RECORD
LANGUAGE INTERNAL
STRICT VOLATILE
AS 'pg_create_logical_replication_slot';

CREATE OR REPLACE FUNCTION
  make_interval(years int4 DEFAULT 0, months int4 DEFAULT 0, weeks int4 DEFAULT 0,
                days int4 DEFAULT 0, hours int4 DEFAULT 0, mins int4 DEFAULT 0,
                secs double precision DEFAULT 0.0)
RETURNS interval
LANGUAGE INTERNAL
STRICT IMMUTABLE PARALLEL SAFE
AS 'make_interval';

CREATE OR REPLACE FUNCTION
  jsonb_set(jsonb_in jsonb, path text[] , replacement jsonb,
            create_if_missing boolean DEFAULT true)
RETURNS jsonb
LANGUAGE INTERNAL
STRICT IMMUTABLE PARALLEL SAFE
AS 'jsonb_set';

CREATE OR REPLACE FUNCTION
  jsonb_set_lax(jsonb_in jsonb, path text[] , replacement jsonb,
            create_if_missing boolean DEFAULT true,
            null_value_treatment text DEFAULT 'use_json_null')
RETURNS jsonb
LANGUAGE INTERNAL
CALLED ON NULL INPUT IMMUTABLE PARALLEL SAFE
AS 'jsonb_set_lax';

CREATE OR REPLACE FUNCTION
  parse_ident(str text, strict boolean DEFAULT true)
RETURNS text[]
LANGUAGE INTERNAL
STRICT IMMUTABLE PARALLEL SAFE
AS 'parse_ident';

CREATE OR REPLACE FUNCTION
  jsonb_insert(jsonb_in jsonb, path text[] , replacement jsonb,
            insert_after boolean DEFAULT false)
RETURNS jsonb
LANGUAGE INTERNAL
STRICT IMMUTABLE PARALLEL SAFE
AS 'jsonb_insert';

CREATE OR REPLACE FUNCTION
  jsonb_path_exists(target jsonb, path jsonpath, vars jsonb DEFAULT '{}',
                    silent boolean DEFAULT false)
RETURNS boolean
LANGUAGE INTERNAL
STRICT IMMUTABLE PARALLEL SAFE
AS 'jsonb_path_exists';

CREATE OR REPLACE FUNCTION
  jsonb_path_match(target jsonb, path jsonpath, vars jsonb DEFAULT '{}',
                   silent boolean DEFAULT false)
RETURNS boolean
LANGUAGE INTERNAL
STRICT IMMUTABLE PARALLEL SAFE
AS 'jsonb_path_match';

CREATE OR REPLACE FUNCTION
  jsonb_path_query(target jsonb, path jsonpath, vars jsonb DEFAULT '{}',
                   silent boolean DEFAULT false)
RETURNS SETOF jsonb
LANGUAGE INTERNAL
STRICT IMMUTABLE PARALLEL SAFE
AS 'jsonb_path_query';

CREATE OR REPLACE FUNCTION
  jsonb_path_query_array(target jsonb, path jsonpath, vars jsonb DEFAULT '{}',
                         silent boolean DEFAULT false)
RETURNS jsonb
LANGUAGE INTERNAL
STRICT IMMUTABLE PARALLEL SAFE
AS 'jsonb_path_query_array';

CREATE OR REPLACE FUNCTION
  jsonb_path_query_first(target jsonb, path jsonpath, vars jsonb DEFAULT '{}',
                         silent boolean DEFAULT false)
RETURNS jsonb
LANGUAGE INTERNAL
STRICT IMMUTABLE PARALLEL SAFE
AS 'jsonb_path_query_first';

CREATE OR REPLACE FUNCTION
  jsonb_path_exists_tz(target jsonb, path jsonpath, vars jsonb DEFAULT '{}',
                    silent boolean DEFAULT false)
RETURNS boolean
LANGUAGE INTERNAL
STRICT STABLE PARALLEL SAFE
AS 'jsonb_path_exists_tz';

CREATE OR REPLACE FUNCTION
  jsonb_path_match_tz(target jsonb, path jsonpath, vars jsonb DEFAULT '{}',
                   silent boolean DEFAULT false)
RETURNS boolean
LANGUAGE INTERNAL
STRICT STABLE PARALLEL SAFE
AS 'jsonb_path_match_tz';

CREATE OR REPLACE FUNCTION
  jsonb_path_query_tz(target jsonb, path jsonpath, vars jsonb DEFAULT '{}',
                   silent boolean DEFAULT false)
RETURNS SETOF jsonb
LANGUAGE INTERNAL
STRICT STABLE PARALLEL SAFE
AS 'jsonb_path_query_tz';

CREATE OR REPLACE FUNCTION
  jsonb_path_query_array_tz(target jsonb, path jsonpath, vars jsonb DEFAULT '{}',
                         silent boolean DEFAULT false)
RETURNS jsonb
LANGUAGE INTERNAL
STRICT STABLE PARALLEL SAFE
AS 'jsonb_path_query_array_tz';

CREATE OR REPLACE FUNCTION
  jsonb_path_query_first_tz(target jsonb, path jsonpath, vars jsonb DEFAULT '{}',
                         silent boolean DEFAULT false)
RETURNS jsonb
LANGUAGE INTERNAL
STRICT STABLE PARALLEL SAFE
AS 'jsonb_path_query_first_tz';

-- default normalization form is NFC, per SQL standard
CREATE OR REPLACE FUNCTION
  "normalize"(text, text DEFAULT 'NFC')
RETURNS text
LANGUAGE internal
STRICT IMMUTABLE PARALLEL SAFE
AS 'unicode_normalize_func';

CREATE OR REPLACE FUNCTION
  is_normalized(text, text DEFAULT 'NFC')
RETURNS boolean
LANGUAGE internal
STRICT IMMUTABLE PARALLEL SAFE
AS 'unicode_is_normalized';

--
-- The default permissions for functions mean that anyone can execute them.
-- A number of functions shouldn't be executable by just anyone, but rather
-- than use explicit 'superuser()' checks in those functions, we use the GRANT
-- system to REVOKE access to those functions at initdb time.  Administrators
-- can later change who can access these functions, or leave them as only
-- available to superuser / cluster owner, if they choose.
--
REVOKE EXECUTE ON FUNCTION pg_start_backup(text, boolean, boolean) FROM public;
REVOKE EXECUTE ON FUNCTION pg_stop_backup() FROM public;
REVOKE EXECUTE ON FUNCTION pg_stop_backup(boolean, boolean) FROM public;
REVOKE EXECUTE ON FUNCTION pg_create_restore_point(text) FROM public;
REVOKE EXECUTE ON FUNCTION pg_switch_wal() FROM public;
REVOKE EXECUTE ON FUNCTION pg_wal_replay_pause() FROM public;
REVOKE EXECUTE ON FUNCTION pg_wal_replay_resume() FROM public;
REVOKE EXECUTE ON FUNCTION pg_rotate_logfile() FROM public;
REVOKE EXECUTE ON FUNCTION pg_reload_conf() FROM public;
REVOKE EXECUTE ON FUNCTION pg_current_logfile() FROM public;
REVOKE EXECUTE ON FUNCTION pg_current_logfile(text) FROM public;
REVOKE EXECUTE ON FUNCTION pg_promote(boolean, integer) FROM public;

REVOKE EXECUTE ON FUNCTION pg_stat_reset() FROM public;
REVOKE EXECUTE ON FUNCTION pg_stat_reset_shared(text) FROM public;
REVOKE EXECUTE ON FUNCTION pg_stat_reset_slru(text) FROM public;
REVOKE EXECUTE ON FUNCTION pg_stat_reset_single_table_counters(oid) FROM public;
REVOKE EXECUTE ON FUNCTION pg_stat_reset_single_function_counters(oid) FROM public;

REVOKE EXECUTE ON FUNCTION lo_import(text) FROM public;
REVOKE EXECUTE ON FUNCTION lo_import(text, oid) FROM public;
REVOKE EXECUTE ON FUNCTION lo_export(oid, text) FROM public;

REVOKE EXECUTE ON FUNCTION pg_ls_logdir() FROM public;
REVOKE EXECUTE ON FUNCTION pg_ls_waldir() FROM public;
REVOKE EXECUTE ON FUNCTION pg_ls_archive_statusdir() FROM public;
REVOKE EXECUTE ON FUNCTION pg_ls_tmpdir() FROM public;
REVOKE EXECUTE ON FUNCTION pg_ls_tmpdir(oid) FROM public;

REVOKE EXECUTE ON FUNCTION pg_read_file(text) FROM public;
REVOKE EXECUTE ON FUNCTION pg_read_file(text,bigint,bigint) FROM public;
REVOKE EXECUTE ON FUNCTION pg_read_file(text,bigint,bigint,boolean) FROM public;

REVOKE EXECUTE ON FUNCTION pg_read_binary_file(text) FROM public;
REVOKE EXECUTE ON FUNCTION pg_read_binary_file(text,bigint,bigint) FROM public;
REVOKE EXECUTE ON FUNCTION pg_read_binary_file(text,bigint,bigint,boolean) FROM public;

REVOKE EXECUTE ON FUNCTION pg_stat_file(text) FROM public;
REVOKE EXECUTE ON FUNCTION pg_stat_file(text,boolean) FROM public;

REVOKE EXECUTE ON FUNCTION pg_ls_dir(text) FROM public;
REVOKE EXECUTE ON FUNCTION pg_ls_dir(text,boolean,boolean) FROM public;

--
-- We also set up some things as accessible to standard roles.
--
GRANT EXECUTE ON FUNCTION pg_ls_logdir() TO pg_monitor;
GRANT EXECUTE ON FUNCTION pg_ls_waldir() TO pg_monitor;
GRANT EXECUTE ON FUNCTION pg_ls_archive_statusdir() TO pg_monitor;
GRANT EXECUTE ON FUNCTION pg_ls_tmpdir() TO pg_monitor;
GRANT EXECUTE ON FUNCTION pg_ls_tmpdir(oid) TO pg_monitor;

GRANT pg_read_all_settings TO pg_monitor;
GRANT pg_read_all_stats TO pg_monitor;
GRANT pg_stat_scan_tables TO pg_monitor;

System Information
*ReClick For Close
File : BlackDragon /index.php

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/root	0755	2026-02-04 03:37:37
..	dir	-	root/root	0755	2026-03-17 06:09:26
contrib	dir	-	root/root	0755	2026-01-14 12:17:14
extension	dir	-	root/root	0755	2026-02-04 03:37:37
timezonesets	dir	-	root/root	0755	2026-02-04 03:37:37
tsearch_data	dir	-	root/root	0755	2026-02-04 03:37:37
information_schema.sql	text/plain	107.16 KB	root/root	0644	2026-01-14 12:17:13
pg_hba.conf.sample	text/plain	4.56 KB	root/root	0644	2026-01-14 12:17:13
pg_ident.conf.sample	text/plain	1.6 KB	root/root	0644	2026-01-14 12:17:13
pg_service.conf.sample	text/plain	604 B	root/root	0644	2025-11-11 05:59:18
postgres.bki	text/plain	809.84 KB	root/root	0644	2026-01-14 12:17:13
postgresql.conf.sample	text/plain	27.35 KB	root/root	0644	2026-01-14 12:17:13
psqlrc.sample	text/plain	278 B	root/root	0644	2026-01-14 12:17:13
snowball_create.sql	text/plain	34.26 KB	root/root	0644	2026-01-14 12:17:13
sql_features.txt	text/plain	34.37 KB	root/root	0644	2026-01-14 12:17:13
system_views.sql	text/plain	53.35 KB	root/root	0644	2026-01-14 12:17:13