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v3.1

文档:v3.1

支持的版本:

其他版本:

内部函数(二)

  • 聚合操作内部函数

    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 - - -
  • 哈希内部功能函数

    hashbeginscan hashbuild hashbuildempty hashbulkdelete hashcostestimate hashendscan hashgetbitmap
    hashgettuple hashinsert hashmarkpos hashmerge hashrescan hashrestrpos hashvacuumcleanup
    hashvarlena - - - - - -
  • Btree索引内部功能函数

    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
  • GiST索引内部功能函数

    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 - - - - -
  • Gin索引内部功能函数

    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_jsonbgin_extract_jsonb_hash cginbuild gin_extract_jsonb_query gin_triconsistent_jsonb
  • Psort索引内部函数

    psortbuild psortcanreturn psortcostestimate psortgetbitmap psortgettuple
  • Ubtree索引内部函数

    ubtbeginscan ubtbuild ubtbuildempty ubtbulkdelete ubtcanreturn
    ubtcostestimate ubtendscan ubtgetbitmap ubtgettuple ubtinsert
    ubtmarkpos ubtmerge ubtoptions ubtrescan ubtrestrpos
    ubtvacuumcleanup
  • plpgsql内部函数

    plpgsql_inline_handler

  • 集合相关内部函数

    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 - - - -
  • 外表相关内部函数

    dist_fdw_handler roach_handler streaming_fdw_handler dist_fdw_validator file_fdw_handler file_fdw_validator log_fdw_handler
  • 主数据库节点远程读取备数据库节点数据页辅助函数

    gs_read_block_from_remote用于读取非段页式表文件的页面。默认只有初始化用户可以查看,其余用户需要赋权后才可以使用。

    pg_read_binary_file_blocks用于读取数据,非压缩表返回实际数据,压缩表返回压缩后的数据。默认只有初始化用户可以查看,其余用户需要赋权后才可以使用。

    gs_read_segment_block_from_remote用于读取段页式表文件的页面。默认只有初始化用户可以查看,其余用户需要赋权后才可以使用。

  • 主数据库节点远程读取备数据库节点数据文件辅助函数

    gs_read_file_from_remote用于读取指定的文件。gs_repair_file利用gs_read_file_size_from_remote函数获取文件大小后,依赖这个函数将远端文件逐段读取。默认只有初始化用户可以查看,其余用户需要赋权后才可以使用。

    gs_read_file_size_from_remote用于读取指定文件的大小。用于读取指定文件的大小,gs_repair_file函数修复文件时,要先获取远端关于这个文件的大小,用于校验本地文件缺失的文件信息,然后将缺失的文件逐个修复。默认只有初始化用户可以查看,其余用户需要赋权后才可以使用。

  • 账本数据库函数

    get_dn_hist_relhash

  • AI特性函数

    create_snapshot create_snapshot_internal prepare_snapshot_internal prepare_snapshot manage_snapshot_internal archive_snapshot publish_snapshot
    purge_snapshot_internal purge_snapshot sample_snapshot
  • PKG_SERVICE函数

    isubmit_on_nodes submit_on_nodes
  • 其他函数

    to_tsvector_for_batch value_of_percentile disable_conn bind_variable job_update job_cancel job_finish
    similar_escape table_skewness (不可用) timetz_text time_text reltime_text abstime_text _pg_keysequal
    analyze_query(不可用) analyze_workload (不可用) 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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