Internal Functions

The following functions of openGauss use internal data types, which cannot be directly called by users.

  • Selection rate calculation functions

    areajoinsel

    areasel

    arraycontjoinsel

    arraycontsel

    contjoinsel

    contsel

    eqjoinsel

    eqsel

    iclikejoinsel

    iclikesel

    icnlikejoinsel

    icnlikesel

    icregexeqjoinsel

    icregexeqsel

    icregexnejoinsel

    icregexnesel

    likejoinsel

    likesel

    neqjoinsel

    neqsel

    nlikejoinsel

    nlikesel

    positionjoinsel

    positionsel

    regexeqjoinsel

    regexeqsel

    regexnejoinsel

    regexnesel

    scalargtjoinsel

    scalargtsel

    scalarltjoinsel

    scalarltsel

    tsmatchjoinsel

    tsmatchsel

    -

  • Statistics collection functions

    array_typanalyze

    range_typanalyze

    ts_typanalyze

    local_rto_stat

    -

    -

  • Internal functions for sorting

    bpchar_sortsupport

    bytea_sortsupport

    date_sortsupport

    numeric_sortsupport

    timestamp_sortsupport

  • Internal functions for full-text retrieval

    dispell_init

    dispell_lexize

    dsimple_init

    dsimple_lexize

    dsnowball_init

    dsnowball_lexize

    dsynonym_init

    dsynonym_lexize

    gtsquery_compress

    gtsquery_consistent

    gtsquery_decompress

    gtsquery_penalty

    gtsquery_picksplit

    gtsquery_same

    gtsquery_union

    ngram_end

    ngram_lextype

    ngram_start

    pound_end

    pound_lextype

    pound_start

    prsd_end

    prsd_headline

    prsd_lextype

    prsd_start

    thesaurus_init

    thesaurus_lexize

    zhprs_end

    zhprs_getlexeme

    zhprs_lextype

    zhprs_start

    -

    -

    -

    -

  • Internal type processing functions

    abstimerecv

    euc_jis_2004_to_utf8

    int2recv

    line_recv

    oidvectorrecv_extend

    tidrecv

    utf8_to_koi8u

    anyarray_recv

    euc_jp_to_mic

    int2vectorrecv

    lseg_recv

    path_recv

    time_recv

    utf8_to_shift_jis_2004

    array_recv

    euc_jp_to_sjis

    int4recv

    macaddr_recv

    pg_node_tree_recv

    time_transform

    utf8_to_sjis

    ascii_to_mic

    euc_jp_to_utf8

    int8recv

    mic_to_ascii

    point_recv

    timestamp_recv

    utf8_to_uhc

    ascii_to_utf8

    euc_kr_to_mic

    internal_out

    mic_to_big5

    poly_recv

    timestamp_transform

    utf8_to_win

    big5_to_euc_tw

    euc_kr_to_utf8

    interval_recv

    mic_to_euc_cn

    pound_nexttoken

    timestamptz_recv

    uuid_recv

    big5_to_mic

    euc_tw_to_big5

    interval_transform

    mic_to_euc_jp

    prsd_nexttoken

    timetz_recv

    varbit_recv

    big5_to_utf8

    euc_tw_to_mic

    iso_to_koi8r

    mic_to_euc_kr

    range_recv

    tintervalrecv

    varbit_transform

    bit_recv

    euc_tw_to_utf8

    iso_to_mic

    mic_to_euc_tw

    rawrecv

    tsqueryrecv

    varchar_transform

    boolrecv

    float4recv

    iso_to_win1251

    mic_to_iso

    record_recv

    tsvectorrecv

    varcharrecv

    box_recv

    float8recv

    iso_to_win866

    mic_to_koi8r

    regclassrecv

    txid_snapshot_recv

    void_recv

    bpcharrecv

    gb18030_to_utf8

    iso8859_1_to_utf8

    mic_to_latin1

    regconfigrecv

    uhc_to_utf8

    win_to_utf8

    btoidsortsupport

    gbk_to_utf8

    iso8859_to_utf8

    mic_to_latin2

    regdictionaryrecv

    unknownrecv

    win1250_to_latin2

    bytearecv

    gin_extract_tsvector

    johab_to_utf8

    mic_to_latin3

    regoperatorrecv

    utf8_to_ascii

    win1250_to_mic

    byteawithoutorderwithequalcolrecv

    gtsvector_compress

    json_recv

    mic_to_latin4

    regoperrecv

    utf8_to_big5

    win1251_to_iso

    cash_recv

    gtsvector_consistent

    koi8r_to_iso

    mic_to_sjis

    regprocedurerecv

    utf8_to_euc_cn

    win1251_to_koi8r

    charrecv

    gtsvector_decompress

    koi8r_to_mic

    mic_to_win1250

    regprocrecv

    utf8_to_euc_jis_2004

    win1251_to_mic

    cidr_recv

    gtsvector_penalty

    koi8r_to_utf8

    mic_to_win1251

    regtyperecv

    utf8_to_euc_jp

    win1251_to_win866

    cidrecv

    gtsvector_picksplit

    koi8r_to_win1251

    mic_to_win866

    reltimerecv

    utf8_to_euc_kr

    win866_to_iso

    circle_recv

    gtsvector_same

    koi8r_to_win866

    namerecv

    shift_jis_2004_to_euc_jis_2004

    utf8_to_euc_tw

    win866_to_koi8r

    cstring_recv

    gtsvector_union

    koi8u_to_utf8

    ngram_nexttoken

    shift_jis_2004_to_utf8

    utf8_to_gb18030

    win866_to_mic

    date_recv

    hll_recv

    latin1_to_mic

    numeric_recv

    sjis_to_euc_jp

    utf8_to_gbk

    win866_to_win1251

    domain_recv

    hll_trans_recv

    latin2_to_mic

    numeric_transform

    sjis_to_mic

    utf8_to_iso8859

    xidrecv

    euc_cn_to_mic

    hstore_recv

    latin2_to_win1250

    nvarchar2recv

    sjis_to_utf8

    utf8_to_iso8859_1

    xidrecv4

    euc_cn_to_utf8

    inet_recv

    latin3_to_mic

    oidrecv

    smalldatetime_recv

    utf8_to_johab

    xml_recv

    euc_jis_2004_to_shift_jis_2004

    int1recv

    latin4_to_mic

    oidvectorrecv

    textrecv

    utf8_to_koi8r

    cstore_tid_out

    i16toi1

    int16

    int16_bool

    int16eq

    int16div

    int16ge

    int16gt

    int16in

    int16le

    int16lt

    int16mi

    int16mul

    int16ne

    int16out

    int16pl

    int16recv

    int16send

    numeric_bool

    int2vectorin_extend

    int2vectorout_extend

    int2vectorrecv_extend

    int2vectorsend_extend

    jsonb_in

    jsonb_out

    jsonb_recv

    jsonb_send

    complex_array_in

    bool_int1

    bool_int2

    bool_int8

    bpchar_float4

    bpchar_float8

    bpchar_int4

    bpchar_int8

    bpchar_numeric

    bpchar_timestamp

    f4toi1

    f8toi1

    float4_bpchar

    float4_text

    float4_varchar

    float8_bpchar

    float8_text

    float8_varchar

    i1tof4

    i1tof8

    i1toi2

    i1toi4

    i1toi8

    i2toi1

    i4toi1

    i8toi1

    int1_avg_accum

    int1_bool

    int1_bpchar

    int1_numeric

    int1_nvarchar2

    int1_text

    int1_varchar

    int1abs

    int1and

    int1cmp

    int1div

    int1eq

    int1ge

    int1gt

    int1in

    int1inc

    int1larger

    int1le

    int1lt

    int1mi

    int1mod

    int1mul

    int1ne

    int1not

    int1or

    int1out

    int1pl

    int1shl

    int1shr

    int1smaller

    int1um

    int1up

    int1xor

    int2_bool

    int2_bpchar

    int2_text

    int2_varchar

    int4_bpchar

    int4_text

    int4_varchar

    int8_bool

    int8_bpchar

    int8_text

    int8_varchar

    job_submit

    numeric_bpchar

    numeric_int1

    numeric_text

    numeric_varchar

    nvarchar2in

    nvarchar2out

    nvarchar2send

    oidvectorin_extend

    oidvectorout_extend

    oidvectorsend_extend

    rawcmp

    raweq

    rawge

    rawgt

    rawin

    rawle

    rawlike

    rawlt

    rawne

    rawnlike

    rawout

    rawsend

    text_float4

    text_float8

    text_int1

    text_int2

    text_int4

    text_int8

    text_numeric

    timestamp_text

    timestamp_varchar

    varchar_float4

    varchar_float8

    varchar_int4

    varchar_int8

    varchar_numeric

    xidout4

    xidsend4

    calculate_quantile_of

    calculate_value_at

    large_seq_rollback_ntree

    large_seq_upgrade_ntree

    -

  • Internal functions for aggregation operations

    array_agg_finalfn

    array_agg_transfn

    bytea_string_agg_finalfn

    bytea_string_agg_transfn

    date_list_agg_noarg2_transfn

    date_list_agg_transfn

    float4_list_agg_noarg2_transfn

    float4_list_agg_transfn

    float8_list_agg_noarg2_transfn

    float8_list_agg_transfn

    int2_list_agg_noarg2_transfn

    int2_list_agg_transfn

    int4_list_agg_noarg2_transfn

    int4_list_agg_transfn

    int8_list_agg_noarg2_transfn

    int8_list_agg_transfn

    interval_list_agg_noarg2_transfn

    interval_list_agg_transfn

    list_agg_finalfn

    list_agg_noarg2_transfn

    list_agg_transfn

    median_float8_finalfn

    median_interval_finalfn

    median_transfn

    mode_final

    numeric_list_agg_noarg2_transfn

    numeric_list_agg_transfn

    ordered_set_transition

    percentile_cont_float8_final

    percentile_cont_interval_final

    string_agg_finalfn

    string_agg_transfn

    timestamp_list_agg_noarg2_transfn

    timestamp_list_agg_transfn

    timestamptz_list_agg_noarg2_transfn

    timestamptz_list_agg_transfn

    checksumtext_agg_transfn

    -

    -

    -

    -

    -

    json_agg_finalfn

    json_agg_transfn

    json_object_agg_finalfn

    json_object_agg_transfn

    -

    -

    -

  • Hash internal functions

    hashbeginscan

    hashbuild

    hashbuildempty

    hashbulkdelete

    hashcostestimate

    hashendscan

    hashgetbitmap

    hashgettuple

    hashinsert

    hashmarkpos

    hashmerge

    hashrescan

    hashrestrpos

    hashvacuumcleanup

    hashvarlena

    -

    -

    -

    -

    -

    -

  • Internal functions of the B-tree index

    cbtreebuild

    cbtreecanreturn

    cbtreecostestimate

    cbtreegetbitmap

    cbtreegettuple

    btbeginscan

    btbuild

    btbuildempty

    btbulkdelete

    btcanreturn

    btcostestimate

    btendscan

    btfloat4sortsupport

    btfloat8sortsupport

    btgetbitmap

    btgettuple

    btinsert

    btint2sortsupport

    btint4sortsupport

    btint8sortsupport

    btmarkpos

    btmerge

    btnamesortsupport

    btrescan

    btrestrpos

    bttextsortsupport

    btvacuumcleanup

    cbtreeoptions

  • Internal functions of the GiST index

    gist_box_compress

    gist_box_consistent

    gist_box_decompress

    gist_box_penalty

    gist_box_picksplit

    gist_box_same

    gist_box_union

    gist_circle_compress

    gist_circle_consistent

    gist_point_compress

    gist_point_consistent

    gist_point_distance

    gist_poly_compress

    gist_poly_consistent

    gistbeginscan

    gistbuild

    gistbuildempty

    gistbulkdelete

    gistcostestimate

    gistendscan

    gistgetbitmap

    gistinsert

    gistmarkpos

    gistmerge

    gistrescan

    gistrestrpos

    gistvacuumcleanup

    range_gist_compress

    range_gist_decompress

    range_gist_penalty

    range_gist_picksplit

    range_gist_same

    range_gist_union

    spg_kd_choose

    spg_kd_config

    spg_kd_picksplit

    spg_quad_choose

    spg_quad_config

    spg_quad_inner_consistent

    spg_quad_leaf_consistent

    spg_quad_picksplit

    spg_text_choose

    spg_text_inner_consistent

    spg_text_leaf_consistent

    spg_text_picksplit

    spgbeginscan

    spgbuild

    spgbuildempty

    spgbulkdelete

    spgcostestimate

    spgendscan

    spggetbitmap

    spggettuple

    spginsert

    spgmarkpos

    spgmerge

    spgrestrpos

    spgvacuumcleanup

    -

    -

    -

    -

    -

  • Internal functions of the GIN index

    gin_cmp_prefix

    gin_extract_tsquery

    gin_tsquery_consistent

    gin_tsquery_triconsistent

    ginarrayconsistent

    ginarrayextract

    ginarraytriconsistent

    ginbeginscan

    ginbuild

    ginbuildempty

    ginbulkdelete

    gincostestimate

    ginendscan

    gingetbitmap

    gininsert

    ginmarkpos

    ginmerge

    ginqueryarrayextract

    ginrescan

    ginrestrpos

    ginvacuumcleanup

    cginbuild

    cgingetbitmap

    -

    -

    -

    -

    -

    gin_compare_jsonb

    gin_consistent_jsonb

    gin_consistent_jsonb_hash

    gin_extract_jsonb

    gin_extract_jsonb_hash

    cginbuild

    gin_extract_jsonb_query

    gin_triconsistent_jsonb

  • Internal functions of the Psort index

    psortbuild

    psortcanreturn

    psortcostestimate

    psortgetbitmap

    psortgettuple

  • Internal functions of the UBTree index

    ubtbeginscan

    ubtbuild

    ubtbuildempty

    ubtbulkdelete

    ubtcanreturn

    ubtcostestimate

    ubtendscan

    ubtgetbitmap

    ubtgettuple

    ubtinsert

    ubtmarkpos

    ubtmerge

    ubtoptions

    ubtrescan

    ubtrestrpos

    ubtvacuumcleanup

    -

    -

    -

    -

  • plpgsql internal function

    plpgsql_inline_handler

  • Set-related internal functions

    array_indexby_delete

    array_indexby_length

    array_integer_deleteidx

    array_integer_exists

    array_integer_first

    array_integer_last

    array_integer_next

    array_integer_prior

    array_varchar_deleteidx

    array_varchar_exists

    array_varchar_first

    array_varchar_last

    array_varchar_next

    array_varchar_prior

    -

    -

    -

    -

  • External table-related internal functions

    dist_fdw_handler

    roach_handler

    streaming_fdw_handler

    dist_fdw_validator

    file_fdw_handler

    file_fdw_validator

    log_fdw_handler

  • Auxiliary function for the primary database node to remotely read the data page from the standby database node.

    gs_read_block_from_remote is used to read the pages of a non-segment-page table file. By default, only the initial user can view the data. Other users can use the data only after being granted with permissions.

    pg_read_binary_file_blocks is used to read data. Non-compressed tables return actual data, and compressed tables return compressed data. By default, only the initial user can view the data. Other users can use the data only after being granted with permissions.

    gs_read_segment_block_from_remote is used to read the pages of a segment-page table file. By default, only the initial user can view the data. Other users can use the data only after being granted with permissions.

  • Auxiliary function for the primary database node to remotely read the data file from the standby database node.

    The gs_read_file_from_remote command is used to read a specified file. After obtaining the file size using the gs_read_file_size_from_remote function, gs_repair_file reads the remote file segment by segment using this function. By default, only the initial user can view the data. Other users can use the data only after being granted with permissions.

    The gs_read_file_size_from_remote command is used to read the size of a specified file. This command is used to read the size of a specified file. Before using the gs_repair_file function to repair a file, you need to obtain the size of the file from the remote end to verify the missing file information and repair the missing files one by one. By default, only the initial user can view the data. Other users can use the data only after being granted with permissions.

  • Ledger database functions

    get_dn_hist_relhash

  • AI feature functions

    create_snapshot

    create_snapshot_internal

    prepare_snapshot_internal

    prepare_snapshot

    manage_snapshot_internal

    archive_snapshot

    publish_snapshot

    purge_snapshot_internal

    purge_snapshot

    sample_snapshot

    -

    -

    -

    -

    • Functions of PKG_SERVICE

    isubmit_on_nodes

    submit_on_nodes

    -

    -

    -

    -

    -

  • Other functions

    to_tsvector_for_batch

    value_of_percentile

    session_context

    bind_variable

    job_update

    job_cancel

    job_finish

    similar_escape

    table_skewness (unavailable)

    timetz_text

    time_text

    reltime_text

    abstime_text

    _pg_keysequal

    analyze_query

    (unavailable)

    analyze_workload (unavailable)

    ssign_table_type

    gs_comm_proxy_thread_status

    gs_txid_oldestxmin

    pg_cancel_session

    pg_stat_segment_space_info

    remote_segment_space_info

    set_cost_params

    set_weight_params

    start_collect_workload

    tdigest_in

    tdigest_merge

    tdigest_merge_to_one

    tdigest_mergep

    tdigest_out

    pg_get_delta_info

    disable_conn

    -

    -

    -

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编组 3备份
    openGauss 2024-04-21 00:47:23
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