其他系统函数

openGauss为内建数据类型提供了大量的函数和操作符。用户也可以自行定义自己所需的函数和操作符。PSQL命令\df和\do可以逐个罗列出现有的函数和操作符。如果用户关心这些函数和操作符的可移植性，那请注意，除了算术和比较操作符以及上述直接标注出的函数，大部分本章中描述的函数和操作符是没有被SQL标准规定的。本章所介绍的扩充后的函数在其他SQL数据库管理系统中也存在，而且很多时候，这些函数的不同版本实现都是兼容且具备一致性的。

openGauss的内建函数和操作符继承自开源PGXC/PG，本小节所列举的函数，相关细节描述请参见PGXC/PG官方文档，链接如下：

http://postgres-xc.sourceforge.net/docs/1_1/functions.html

https://www.postgresql.org/docs/9.2/functions.html

• abbrev
• abs
• abstime
• abstimeeq
• abstimege
• abstimegt
• abstimein
• abstimele
• abstimelt
• abstimene
• abstimeout
• abstimerecv
• abstimesend
• aclcontains
• acldefault
• aclexplode
• aclinsert
• aclitemeq
• aclitemin
• aclitemout
• aclremove
• acos
• add_months
• age
• any_in
• any_out
• anyarray_in
• anyarray_out
• anyarray_recv
• anyarray_send
• anyelement_in
• anyelement_out
• anyenum_in
• anyenum_out
• anynonarray_in
• anynonarray_out
• anyrange_in
• anyrange_out
• anytextcat
• area
• areajoinsel
• areasel
• array_agg
• array_agg_finalfn
• array_agg_transfn
• array_append
• array_cat
• array_dims
• array_eq
• array_extend
• array_fill
• array_ge
• array_gt
• array_in
• array_larger
• array_le
• array_length
• array_lower
• array_lt
• array_ndims
• array_ne
• array_out
• array_prepend
• array_recv
• array_send
• array_smaller
• array_to_json
• array_to_string
• array_typanalyze
• array_upper
• arraycontained
• arraycontains
• arraycontjoinsel
• arraycontsel
• arrayoverlap
• ascii
• asin
• atan
• atan2
• avg
• bigint_tid
• bit
• bit_and
• bit_in
• bit_length
• bit_or
• bit_out
• bit_recv
• bit_send
• bitand
• bitcat
• bitcmp
• biteq
• bitge
• bitgt
• bitle
• bitlt
• bitne
• bitnot
• bitor
• bitshiftleft
• bitshiftright
• bittypmodin
• bittypmodout
• bitxor
• bool
• bool_and
• bool_int1
• bool_int2
• bool_int8
• bool_or
• booland_statefunc
• booleq
• boolge
• boolgt
• boolin
• boolle
• boollt
• boolne
• boolor_statefunc
• boolout
• boolrecv
• boolsend
• box
• box_above
• box_above_eq
• box_add
• box_below
• box_below_eq
• box_center
• box_contain
• box_contain_pt
• box_contained
• box_distance
• box_div
• box_eq
• box_ge
• box_gt
• box_in
• box_intersect
• box_le
• box_left
• box_lt
• box_mul
• box_out
• box_overabove
• box_overbelow
• box_overlap
• box_overleft
• box_overright
• box_recv
• box_right
• box_same
• box_send
• box_sub
• bpchar
• bpchar_date
• bpchar_float4
• bpchar_float8
• bpchar_int4
• bpchar_int8
• bpchar_larger
• bpchar_numeric
• bpchar_pattern_ge
• bpchar_pattern_gt
• bpchar_pattern_le
• bpchar_pattern_lt
• bpchar_smaller
• bpchar_sortsupport
• bpchar_timestamp
• bpcharcmp
• bpchareq
• bpcharge
• bpchargt
• bpchariclike
• bpcharicnlike
• bpcharicregexeq
• bpcharicregexne
• bpcharin
• bpcharle
• bpcharlike
• bpcharlt
• bpcharne
• bpcharnlike
• bpcharout
• bpcharrecv
• bpcharregexeq
• bpcharregexne
• bpcharsend
• bpchartypmodin
• bpchartypmodout
• broadcast
• btabstimecmp
• btarraycmp
• btbeginscan
• btboolcmp
• btbpchar_pattern_cmp
• btbuild
• btbuildempty
• btbulkdelete
• btcanreturn
• btcharcmp
• btcostestimate
• btendscan
• btfloat48cmp
• btfloat4cmp
• btfloat4sortsupport
• btfloat84cmp
• btfloat8cmp
• btfloat8sortsupport
• btgetbitmap
• btgettuple
• btinsert
• btint24cmp
• btint28cmp
• btint2cmp
• btint2sortsupport
• btint42cmp
• btint48cmp
• btint4cmp
• btint4sortsupport
• btint82cmp
• btint84cmp
• btint8cmp
• btint8sortsupport
• btmarkpos
• btmerge
• btnamecmp
• btnamesortsupport
• btoidcmp
• btoidsortsupport
• btoidvectorcmp
• btoptions
• btrecordcmp
• btreltimecmp
• btrescan
• btrestrpos
• btrim
• bttext_pattern_cmp
• bttextcmp
• bttextsortsupport
• bttidcmp
• bttintervalcmp
• btvacuumcleanup
• bucketabstime
• bucketbool
• bucketbpchar
• bucketbytea
• bucketcash
• bucketchar
• bucketdate
• bucketfloat4
• bucketfloat8
• bucketint1
• bucketint2
• bucketint2vector
• bucketint4
• bucketint8
• bucketinterval
• bucketname
• bucketnumeric
• bucketnvarchar2
• bucketoid
• bucketoidvector
• bucketraw
• bucketreltime
• bucketsmalldatetime
• buckettext
• buckettime
• buckettimestamp
• buckettimestamptz
• buckettimetz
• bucketuuid
• bucketvarchar
• bytea_sortsupport
• bytea_string_agg_finalfn
• bytea_string_agg_transfn
• byteacat
• byteacmp
• byteaeq
• byteage
• byteagt
• byteain
• byteale
• bytealike
• bytealt
• byteane
• byteanlike
• byteaout
• bytearecv
• byteasend
• cash_cmp
• cash_div_cash
• cash_div_flt4
• cash_div_flt8
• cash_div_int1
• cash_div_int2
• cash_div_int4
• cash_div_int8
• cash_eq
• cash_ge
• cash_gt
• cash_in
• cash_le
• cash_lt
• cash_mi
• cash_mul_flt4
• cash_mul_flt8
• cash_mul_int1
• cash_mul_int2
• cash_mul_int4
• cash_mul_int8
• cash_ne
• cash_out
• cash_pl
• cash_recv
• cash_send
• cash_words
• cashlarger
• cashsmaller
• cbrt
• cbtreebuild
• cbtreecanreturn
• cbtreecostestimate
• cbtreegetbitmap
• cbtreegettuple
• cbtreeoptions
• ceil
• ceiling
• center
• cginbuild
• cgingetbitmap
• char
• char_length
• character_length
• chareq
• charge
• chargt
• charin
• charle
• charlt
• charne
• charout
• charrecv
• charsend
• check_engine_status
• checksum
• checksumtext_agg_transfn
• chr
• cideq
• cidin
• cidout
• cidr
• cidr_in
• cidr_out
• cidr_recv
• cidr_send
• cidrecv
• cidsend
• circle
• circle_above
• circle_add_pt
• circle_below
• circle_center
• circle_contain
• circle_contain_pt
• circle_contained
• circle_distance
• circle_div_pt
• circle_eq
• circle_ge
• circle_gt
• circle_in
• circle_le
• circle_left
• circle_lt
• circle_mul_pt
• circle_ne
• circle_out
• circle_overabove
• circle_overbelow
• circle_overlap
• circle_overleft
• circle_overright
• circle_recv
• circle_right
• circle_same
• circle_send
• circle_sub_pt
• clock_timestamp
• close_lb
• close_ls
• close_lseg
• close_pb
• close_pl
• close_ps
• close_sb
• close_sl
• col_description
• comm_client_info
• complex_array_in
• concat
• concat_ws
• contjoinsel
• contsel
• convert
• convert_from
• convert_to
• convert_to_nocase
• corr
• cos
• cot
• count
• covar_pop
• covar_samp
• create_wdr_snapshot
• cstore_tid_out
• cstring_in
• cstring_out
• cstring_recv
• cstring_send
• cume_dist
• cupointer_bigint
• current_database
• current_query
• current_schema
• current_schemas
• current_setting
• current_user
• currtid
• currtid2
• currval
• cursor_to_xml
• cursor_to_xmlschema
• database_to_xml
• database_to_xml_and_xmlschema
• database_to_xmlschema
• datalength
• date
• date_bpchar
• date_cmp
• date_cmp_timestamp
• date_cmp_timestamptz
• date_eq
• date_eq_timestamp
• date_eq_timestamptz
• date_ge
• date_ge_timestamp
• date_ge_timestamptz
• date_gt
• date_gt_timestamp
• date_gt_timestamptz
• date_in
• date_larger
• date_le
• date_le_timestamp
• date_le_timestamptz
• date_list_agg_noarg2_transfn
• date_list_agg_transfn
• date_lt
• date_lt_timestamp
• date_lt_timestamptz
• date_mi
• date_mi_interval
• date_mii
• date_ne
• date_ne_timestamp
• date_ne_timestamptz
• date_out
• date_part
• date_pl_interval
• date_pli
• date_recv
• date_send
• date_smaller
• date_sortsupport
• date_text
• date_trunc
• date_varchar
• daterange
• daterange_canonical
• daterange_subdiff
• datetime_pl
• datetimetz_pl
• dcbrt
• decode
• definer_current_user
• degrees
• dense_rank
• dexp
• diagonal
• diameter
• disable_conn
• dispell_init
• dispell_lexize
• dist_cpoly
• dist_lb
• dist_pb
• dist_pc
• dist_pl
• dist_ppath
• dist_ps
• dist_sb
• dist_sl
• div
• dlog1
• dlog10
• domain_in
• domain_recv
• dpow
• dround
• dsimple_init
• dsimple_lexize
• dsqrt
• dsynonym_init
• dsynonym_lexize
• dtrunc
• elem_contained_by_range
• empty_blob
• encode
• encode_plan_node
• enum_cmp
• enum_eq
• enum_first
• enum_ge
• enum_gt
• enum_in
• enum_larger
• enum_last
• enum_le
• enum_lt
• enum_ne
• enum_out
• enum_range
• enum_recv
• enum_send
• enum_smaller
• eqjoinsel
• eqsel
• every
• exec_hadoop_sql
• exec_on_extension
• exp
• f4toi1
• f8toi1
• factorial
• family
• fdw_handler_in
• fdw_handler_out
• first_value
• float4
• float4_accum
• float4_bpchar
• float4_list_agg_noarg2_transfn
• float4_list_agg_transfn
• float4_text
• float4_varchar
• float48div
• float48eq
• float48ge
• float48gt
• float48le
• float48lt
• float48mi
• float48mul
• float48ne
• float48pl
• float4abs
• float4div
• float4eq
• float4ge
• float4gt
• float4in
• float4larger
• float4le
• float4lt
• float4mi
• float4mul
• float4ne
• float4out
• float4pl
• float4recv
• float4send
• float4smaller
• float4um
• float4up
• float8
• float8_accum
• float8_avg
• float8_bpchar
• float8_collect
• float8_corr
• float8_covar_pop
• float8_covar_samp
• float8_interval
• float8_list_agg_noarg2_transfn
• float8_list_agg_transfn
• float8_regr_accum
• float8_regr_avgx
• float8_regr_avgy
• float8_regr_collect
• float8_regr_intercept
• float8_regr_r2
• float8_regr_slope
• float8_regr_sxx
• float8_regr_sxy
• float8_regr_syy
• float8_stddev_pop
• float8_stddev_samp
• float8_text
• float8_var_pop
• float8_var_samp
• float8_varchar
• float84div
• float84eq
• float84ge
• float84gt
• float84le
• float84lt
• float84mi
• float84mul
• float84ne
• float84pl
• float8abs
• float8div
• float8eq
• float8ge
• float8gt
• float8in
• float8larger
• float8le
• float8lt
• float8mi
• float8mul
• float8ne
• float8out
• float8pl
• float8recv
• float8send
• float8smaller
• float8um
• float8up
• floor
• flt4_mul_cash
• flt8_mul_cash
• fmgr_c_validator
• fmgr_internal_validator
• fmgr_sql_validator
• format
• format_type
• generate_series
• generate_subscripts
• generate_wdr_report
• get_hostname
• get_nodename
• get_prepared_pending_xid
• get_schema_oid
• getbucket
• getdatabaseencoding
• getpgusername
• gin_clean_pending_list
• gin_cmp_prefix
• gin_cmp_tslexeme
• gin_extract_tsquery
• gin_extract_tsvector
• gin_tsquery_consistent
• gin_tsquery_triconsistent
• ginarrayconsistent
• ginarrayextract
• ginarraytriconsistent
• ginbeginscan
• ginbuild
• ginbuildempty
• ginbulkdelete
• gincostestimate
• ginendscan
• gingetbitmap
• gininsert
• ginmarkpos
• ginmerge
• ginoptions
• ginqueryarrayextract
• ginrescan
• ginrestrpos
• ginvacuumcleanup
• 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
• gistgettuple
• gistinsert
• gistmarkpos
• gistmerge
• gistoptions
• gistrescan
• gistrestrpos
• gistvacuumcleanup
• global_comm_get_client_info
• global_comm_get_recv_stream
• global_comm_get_send_stream
• global_comm_get_status
• gs_all_control_group_info
• gs_all_nodegroup_control_group_info
• gs_cgroup_map_ng_conf
• gs_extend_library
• gs_fault_inject
• gs_get_next_xid_csn
• gs_get_nodegroup_tablecount
• gs_password_notifytime
• gs_stat_get_wlm_plan_operator_info
• gs_switch_relfilenode
• gs_total_nodegroup_memory_detail
• gs_wlm_get_resource_pool_info
• gs_wlm_get_session_info
• gs_wlm_get_user_info
• gs_wlm_get_user_session_info
• gs_wlm_get_workload_records
• gs_wlm_node_clean
• gs_wlm_node_recover
• gs_wlm_readjust_user_space
• gs_wlm_readjust_user_space_through_username
• gs_wlm_readjust_user_space_with_reset_flag
• gs_wlm_rebuild_user_resource_pool
• gs_wlm_session_respool
• gtsquery_compress
• gtsquery_consistent
• gtsquery_decompress
• gtsquery_penalty
• gtsquery_picksplit
• gtsquery_same
• gtsquery_union
• gtsvector_compress
• gtsvector_consistent
• gtsvector_decompress
• gtsvector_penalty
• gtsvector_picksplit
• gtsvector_same
• gtsvector_union
• gtsvectorin
• gtsvectorout
• has_any_column_privilege
• has_column_privilege
• has_database_privilege
• has_directory_privilege
• has_foreign_data_wrapper_privilege
• has_function_privilege
• has_language_privilege
• has_nodegroup_privilege
• has_schema_privilege
• has_sequence_privilege
• has_server_privilege
• has_table_privilege
• has_tablespace_privilege
• has_type_privilege
• hash_aclitem
• hash_array
• hash_numeric
• hash_range
• hashbeginscan
• hashbpchar
• hashbuild
• hashbuildempty
• hashbulkdelete
• hashchar
• hashcostestimate
• hashendscan
• hashenum
• hashfloat4
• hashfloat8
• hashgetbitmap
• hashgettuple
• hashinet
• hashinsert
• hashint1
• hashint2
• hashint2vector
• hashint4
• hashint8
• hashmacaddr
• hashmarkpos
• hashmerge
• hashname
• hashoid
• hashoidvector
• hashoptions
• hashrescan
• hashrestrpos
• hashtext
• hashvacuumcleanup
• hashvarlena
• height
• hextoraw
• host
• hostmask
• i1tof4
• i1tof8
• i1toi2
• i1toi4
• i1toi8
• i2toi1
• i4toi1
• i8toi1
• iclikejoinsel
• iclikesel
• icnlikejoinsel
• icnlikesel
• icregexeqjoinsel
• icregexeqsel
• icregexnejoinsel
• icregexnesel
• inet_client_addr
• inet_client_port
• inet_in
• inet_out
• inet_recv
• inet_send
• inet_server_addr
• inet_server_port
• inetand
• inetmi
• inetmi_int8
• inetnot
• inetor
• inetpl
• initcap
• instr
• int1_avg_accum
• int1_bool
• int1_bpchar
• int1_mul_cash
• 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
• int1recv
• int1send
• int1shl
• int1shr
• int1smaller
• int1um
• int1up
• int1xor
• int2
• int2_accum
• int2_avg_accum
• int2_bool
• int2_bpchar
• int2_list_agg_noarg2_transfn
• int2_list_agg_transfn
• int2_mul_cash
• int2_sum
• int2_text
• int2_varchar
• int24div
• int24eq
• int24ge
• int24gt
• int24le
• int24lt
• int24mi
• int24mul
• int24ne
• int24pl
• int28div
• int28eq
• int28ge
• int28gt
• int28le
• int28lt
• int28mi
• int28mul
• int28ne
• int28pl
• int2abs
• int2and
• int2div
• int2eq
• int2ge
• int2gt
• int2in
• int2larger
• int2le
• int2lt
• int2mi
• int2mod
• int2mul
• int2ne
• int2not
• int2or
• int2out
• int2pl
• int2recv
• int2send
• int2shl
• int2shr
• int2smaller
• int2um
• int2up
• int2vectoreq
• int2vectorin
• int2vectorout
• int2vectorrecv
• int2vectorsend
• int2xor
• int4
• int4_accum
• int4_avg_accum
• int4_bpchar
• int4_list_agg_noarg2_transfn
• int4_list_agg_transfn
• int4_mul_cash
• int4_sum
• int4_text
• int4_varchar
• int42div
• int42eq
• int42ge
• int42gt
• int42le
• int42lt
• int42mi
• int42mul
• int42ne
• int42pl
• int48div
• int48eq
• int48ge
• int48gt
• int48le
• int48lt
• int48mi
• int48mul
• int48ne
• int48pl
• int4abs
• int4and
• int4div
• int4eq
• int4ge
• int4gt
• int4in
• int4inc
• int4larger
• int4le
• int4lt
• int4mi
• int4mod
• int4mul
• int4ne
• int4not
• int4or
• int4out
• int4pl
• int4range
• int4range_canonical
• int4range_subdiff
• int4recv
• int4send
• int4shl
• int4shr
• int4smaller
• int4um
• int4up
• int4xor
• int8
• int8_accum
• int8_avg
• int8_avg_accum
• int8_avg_collect
• int8_bool
• int8_bpchar
• int8_list_agg_noarg2_transfn
• int8_list_agg_transfn
• int8_mul_cash
• int8_sum
• int8_sum_to_int8
• int8_text
• int8_varchar
• int82div
• int82eq
• int82ge
• int82gt
• int82le
• int82lt
• int82mi
• int82mul
• int82ne
• int82pl
• int84div
• int84eq
• int84ge
• int84gt
• int84le
• int84lt
• int84mi
• int84mul
• int84ne
• int84pl
• int8abs
• int8and
• int8div
• int8eq
• int8ge
• int8gt
• int8in
• int8inc
• int8inc_any
• int8inc_float8_float8
• int8larger
• int8le
• int8lt
• int8mi
• int8mod
• int8mul
• int8ne
• int8not
• int8or
• int8out
• int8pl
• int8pl_inet
• int8range
• int8range_canonical
• int8range_subdiff
• int8recv
• int8send
• int8shl
• int8shr
• int8smaller
• int8um
• int8up
• int8xor
• integer_pl_date
• inter_lb
• inter_sb
• inter_sl
• internal_in
• internal_out
• interval
• interval_accum
• interval_avg
• interval_cmp
• interval_collect
• interval_div
• interval_eq
• interval_ge
• interval_gt
• interval_hash
• interval_in
• interval_larger
• interval_le
• interval_list_agg_noarg2_transfn
• interval_list_agg_transfn
• interval_lt
• interval_mi
• interval_mul
• interval_ne
• interval_out
• interval_pl
• interval_pl_date
• interval_pl_time
• interval_pl_timestamp
• interval_pl_timestamptz
• interval_pl_timetz
• interval_recv
• interval_send
• interval_smaller
• interval_transform
• interval_um
• intervaltypmodin
• intervaltypmodout
• intinterval
• isclosed
• isempty
• isfinite
• ishorizontal
• isopen
• isparallel
• isperp
• isvertical
• json_in
• json_out
• json_recv
• json_send
• justify_days
• justify_hours
• justify_interval
• kill_snapshot
• lag
• language_handler_in
• language_handler_out
• last_day
• last_value
• lastval
• lead
• left
• length
• lengthb
• like
• like_escape
• likejoinsel
• likesel
• line
• line_distance
• line_eq
• line_horizontal
• line_in
• line_interpt
• line_intersect
• line_out
• line_parallel
• line_perp
• line_recv
• line_send
• line_vertical
• list_agg_finalfn
• list_agg_noarg2_transfn
• list_agg_transfn
• listagg
• ln
• lo_close
• lo_creat
• lo_create
• lo_export
• lo_import
• lo_lseek
• lo_open
• lo_tell
• lo_truncate
• lo_unlink
• local_ckpt_stat
• local_double_write_stat
• local_pagewriter_stat
• local_recovery_status
• local_redo_stat
• local_rto_stat
• log
• loread
• lower
• lower_inc
• lower_inf
• lowrite
• lpad
• lseg
• lseg_center
• lseg_distance
• lseg_eq
• lseg_ge
• lseg_gt
• lseg_horizontal
• lseg_in
• lseg_interpt
• lseg_intersect
• lseg_le
• lseg_length
• lseg_lt
• lseg_ne
• lseg_out
• lseg_parallel
• lseg_perp
• lseg_recv
• lseg_send
• lseg_vertical
• ltrim
• macaddr_and
• macaddr_cmp
• macaddr_eq
• macaddr_ge
• macaddr_gt
• macaddr_in
• macaddr_le
• macaddr_lt
• macaddr_ne
• macaddr_not
• macaddr_or
• macaddr_out
• macaddr_recv
• macaddr_send
• makeaclitem
• masklen
• max
• md5
• min
• mktinterval
• mod
• model_train_opt
• money
• mul_d_interval
• multiply
• name
• nameeq
• namege
• namegt
• nameiclike
• nameicnlike
• nameicregexeq
• nameicregexne
• namein
• namele
• namelike
• namelt
• namene
• namenlike
• nameout
• namerecv
• nameregexeq
• nameregexne
• namesend
• neqjoinsel
• neqsel
• netmask
• network
• network_cmp
• network_eq
• network_ge
• network_gt
• network_le
• network_lt
• network_ne
• network_sub
• network_subeq
• network_sup
• network_supeq
• next_day
• nextval
• ngram_end
• ngram_lextype
• ngram_nexttoken
• ngram_start
• nlikejoinsel
• nlikesel
• node_oid_name
• notlike
• now
• npoints
• nth_value
• ntile
• numeric
• numeric_abs
• numeric_accum
• numeric_add
• numeric_avg
• numeric_avg_accum
• numeric_avg_collect
• numeric_bpchar
• numeric_cmp
• numeric_collect
• numeric_div
• numeric_div_trunc
• numeric_eq
• numeric_exp
• numeric_fac
• numeric_ge
• numeric_gt
• numeric_in
• numeric_inc
• numeric_int1
• numeric_larger
• numeric_le
• numeric_list_agg_noarg2_transfn
• numeric_list_agg_transfn
• numeric_ln
• numeric_log
• numeric_lt
• numeric_mod
• numeric_mul
• numeric_ne
• numeric_out
• numeric_power
• numeric_recv
• numeric_send
• numeric_smaller
• numeric_sortsupport
• numeric_sqrt
• numeric_stddev_pop
• numeric_stddev_samp
• numeric_sub
• numeric_text
• numeric_transform
• numeric_uminus
• numeric_uplus
• numeric_var_pop
• numeric_var_samp
• numeric_varchar
• numerictypmodin
• numerictypmodout
• numnode
• numrange
• numrange_subdiff
• numtoday
• numtodsinterval
• nvarchar2
• nvarchar2in
• nvarchar2out
• nvarchar2recv
• nvarchar2send
• nvarchar2typmodin
• nvarchar2typmodout
• obj_description
• octet_length
• oid
• oideq
• oidge
• oidgt
• oidin
• oidlarger
• oidle
• oidlt
• oidne
• oidout
• oidrecv
• oidsend
• oidsmaller
• oidvectoreq
• oidvectorge
• oidvectorgt
• oidvectorin
• oidvectorin_extend
• oidvectorle
• oidvectorlt
• oidvectorne
• oidvectorout
• oidvectorout_extend
• oidvectorrecv
• oidvectorrecv_extend
• oidvectorsend
• oidvectorsend_extend
• oidvectortypes
• on_pb
• on_pl
• on_ppath
• on_ps
• on_sb
• on_sl
• opaque_in
• opaque_out
• ordered_set_transition
• overlaps
• overlay
• path
• path_add
• path_add_pt
• path_center
• path_contain_pt
• path_distance
• path_div_pt
• path_in
• path_inter
• path_length
• path_mul_pt
• path_n_eq
• path_n_ge
• path_n_gt
• path_n_le
• path_n_lt
• path_npoints
• path_out
• path_recv
• path_send
• path_sub_pt
• percent_rank
• percentile_cont
• percentile_cont_float8_final
• percentile_cont_interval_final
• pg_autovac_coordinator
• pg_available_extension_versions
• pg_available_extensions
• pg_buffercache_pages
• pg_cancel_invalid_query
• pg_char_to_encoding
• pg_check_xidlimit
• pg_clean_region_info
• pg_collation_for
• pg_comm_delay
• pg_comm_recv_stream
• pg_comm_send_stream
• pg_comm_status
• pg_control_group_config
• pg_create_physical_replication_slot
• pg_current_sessid
• pg_current_sessionid
• pg_current_userid
• pg_cursor
• pg_encoding_max_length
• pg_encoding_to_char
• pg_extension_config_dump
• pg_extension_update_paths
• pg_filenode_relation
• pg_get_replication_slot_name
• pg_get_replication_slots
• pg_get_xidlimit
• pg_lock_status
• pg_log_comm_status
• pg_logical_slot_get_binary_changes
• pg_logical_slot_peek_binary_changes
• pg_node_tree_in
• pg_node_tree_out
• pg_node_tree_recv
• pg_node_tree_send
• pg_notify
• pg_parse_clog
• pg_partition_filenode
• pg_pool_ping
• pg_pool_validate
• pg_prepared_statement
• pg_prepared_xact
• pg_relation_compression_ratio
• pg_relation_with_compression
• pg_resume_bkp_flag
• pg_sequence_parameters
• pg_show_all_settings
• pg_stat_file_recursive
• pg_stat_get_activity_for_temptable
• pg_stat_get_activity_ng
• pg_stat_get_bgwriter_stat_reset_time
• pg_stat_get_buf_fsync_backend
• pg_stat_get_cgroup_info
• pg_stat_get_checkpoint_sync_time
• pg_stat_get_checkpoint_write_time
• pg_stat_get_db_blk_read_time
• pg_stat_get_db_blk_write_time
• pg_stat_get_db_conflict_all
• pg_stat_get_db_conflict_bufferpin
• pg_stat_get_db_conflict_snapshot
• pg_stat_get_db_conflict_startup_deadlock
• pg_stat_get_db_conflict_tablespace
• pg_stat_get_db_stat_reset_time
• pg_stat_get_db_temp_bytes
• pg_stat_get_db_temp_files
• pg_stat_get_file_stat
• pg_stat_get_function_total_time
• pg_stat_get_mem_mbytes_reserved
• pg_stat_get_partition_tuples_hot_updated
• pg_stat_get_pooler_status
• pg_stat_get_realtime_info_internal
• pg_stat_get_redo_stat
• pg_stat_get_role_name
• pg_stat_get_session_wlmstat
• pg_stat_get_status
• pg_stat_get_stream_replications
• pg_stat_get_wal_receiver
• pg_stat_get_wal_senders
• pg_stat_get_wlm_ec_operator_info
• pg_stat_get_wlm_instance_info
• pg_stat_get_wlm_instance_info_with_cleanup
• pg_stat_get_wlm_node_resource_info
• pg_stat_get_wlm_operator_info
• pg_stat_get_wlm_realtime_ec_operator_info
• pg_stat_get_wlm_realtime_operator_info
• pg_stat_get_wlm_realtime_session_info
• pg_stat_get_wlm_session_info
• pg_stat_get_wlm_session_info_internal
• pg_stat_get_wlm_session_iostat_info
• pg_stat_get_wlm_statistics
• pg_stat_get_workload_struct_info
• pg_stat_get_xact_blocks_fetched
• pg_stat_get_xact_blocks_hit
• pg_stat_get_xact_function_calls
• pg_stat_get_xact_function_self_time
• pg_stat_get_xact_function_total_time
• pg_stat_get_xact_numscans
• pg_stat_get_xact_tuples_fetched
• pg_stat_get_xact_tuples_returned
• pg_stat_reset
• pg_sync_cstore_delta
• pg_tde_info
• pg_test_err_contain_err
• pg_timezone_abbrevs
• pg_timezone_names
• pgxc_get_csn
• pgxc_get_thread_wait_status
• pgxc_lock_for_sp_database
• pgxc_max_datanode_size
• pgxc_node_str
• pgxc_pool_connection_status
• pgxc_snapshot_status
• pgxc_stat_dirty_tables
• pgxc_unlock_for_sp_database
• pi
• plainto_tsquery
• plancache_clean
• plancache_status
• point
• point_above
• point_add
• point_below
• point_distance
• point_div
• point_eq
• point_horiz
• point_in
• point_left
• point_mul
• point_ne
• point_out
• point_recv
• point_right
• point_send
• point_sub
• point_vert
• poly_above
• poly_below
• poly_center
• poly_contain
• poly_contain_pt
• poly_contained
• poly_distance
• poly_in
• poly_left
• poly_npoints
• poly_out
• poly_overabove
• poly_overbelow
• poly_overlap
• poly_overleft
• poly_overright
• poly_recv
• poly_right
• poly_same
• poly_send
• polygon
• position
• positionjoinsel
• positionsel
• postgresql_fdw_validator
• pound_end
• pound_lextype
• pound_nexttoken
• pound_start
• pow
• power
• prepare_statement_status
• prsd_end
• prsd_headline
• prsd_lextype
• prsd_nexttoken
• prsd_start
• psortbuild
• psortcanreturn
• psortcostestimate
• psortgetbitmap
• psortgettuple
• psortoptions
• pt_contained_circle
• pt_contained_poly
• pv_builtin_functions
• pv_compute_pool_workload
• pv_os_run_info
• pv_session_memory
• pv_session_memory_detail
• pv_session_stat
• pv_session_time
• pv_thread_memory_detail
• pv_total_memory_detail
• query_to_xml
• query_to_xml_and_xmlschema
• query_to_xmlschema
• querytree
• quote_ident
• quote_literal
• quote_nullable
• radians
• radius
• random
• range_adjacent
• range_after
• range_before
• range_cmp
• range_contained_by
• range_contains
• range_contains_elem
• range_eq
• range_ge
• range_gist_compress
• range_gist_consistent
• range_gist_decompress
• range_gist_penalty
• range_gist_picksplit
• range_gist_same
• range_gist_union
• range_gt
• range_in
• range_intersect
• range_le
• range_lt
• range_minus
• range_ne
• range_out
• range_overlaps
• range_overleft
• range_overright
• range_recv
• range_send
• range_typanalyze
• range_union
• rank
• rawcat
• rawcmp
• raweq
• rawge
• rawgt
• rawin
• rawle
• rawlike
• rawlt
• rawne
• rawnlike
• rawout
• rawrecv
• rawsend
• rawtohex
• read_disable_conn_file
• record_eq
• record_ge
• record_gt
• record_in
• record_le
• record_lt
• record_ne
• record_out
• record_recv
• record_send
• regclass
• regclassin
• regclassout
• regclassrecv
• regclasssend
• regconfigin
• regconfigout
• regconfigrecv
• regconfigsend
• regdictionaryin
• regdictionaryout
• regdictionaryrecv
• regdictionarysend
• regexeqjoinsel
• regexeqsel
• regexnejoinsel
• regexnesel
• regexp_matches
• regexp_replace
• regexp_split_to_array
• regexp_split_to_table
• regoperatorin
• regoperatorout
• regoperatorrecv
• regoperatorsend
• regoperin
• regoperout
• regoperrecv
• regopersend
• regprocedurein
• regprocedureout
• regprocedurerecv
• regproceduresend
• regprocin
• regprocout
• regprocrecv
• regprocsend
• regr_avgx
• regr_avgy
• regr_count
• regr_intercept
• regr_r2
• regr_slope
• regr_sxx
• regr_sxy
• regr_syy
• regtypein
• regtypeout
• regtyperecv
• regtypesend
• reltime
• reltimeeq
• reltimege
• reltimegt
• reltimein
• reltimele
• reltimelt
• reltimene
• reltimeout
• reltimerecv
• reltimesend
• remote_ckpt_stat
• remote_double_write_stat
• remote_pagewriter_stat
• remote_recovery_status
• remote_redo_stat
• remote_rto_stat
• repeat
• replace
• report_fatal
• reset_unique_sql
• reverse
• RI_FKey_cascade_del
• RI_FKey_cascade_upd
• RI_FKey_check_ins
• RI_FKey_check_upd
• RI_FKey_noaction_del
• RI_FKey_noaction_upd
• RI_FKey_restrict_del
• RI_FKey_restrict_upd
• RI_FKey_setdefault_del
• RI_FKey_setdefault_upd
• RI_FKey_setnull_del
• RI_FKey_setnull_upd
• right
• round
• row_number
• row_to_json
• rpad
• rtrim
• scalargtjoinsel
• scalargtsel
• scalarltjoinsel
• scalarltsel
• schema_to_xml
• schema_to_xml_and_xmlschema
• schema_to_xmlschema
• session_user
• sessionid2pid
• set_bit
• set_byte
• set_config
• set_hashbucket_info
• set_masklen
• set_working_grand_version_num_manually
• setseed
• setval
• setweight
• shell_in
• shell_out
• shobj_description
• sign
• signal_backend
• similar_escape
• sin
• slope
• smalldatetime_cmp
• smalldatetime_eq
• smalldatetime_ge
• smalldatetime_gt
• smalldatetime_hash
• smalldatetime_in
• smalldatetime_larger
• smalldatetime_le
• smalldatetime_lt
• smalldatetime_ne
• smalldatetime_out
• smalldatetime_recv
• smalldatetime_send
• smalldatetime_smaller
• smgreq
• smgrin
• smgrne
• smgrout
• spg_kd_choose
• spg_kd_config
• spg_kd_inner_consistent
• 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_config
• spg_text_inner_consistent
• spg_text_leaf_consistent
• spg_text_picksplit
• spgbeginscan
• spgbuild
• spgbuildempty
• spgbulkdelete
• spgcanreturn
• spgcostestimate
• spgendscan
• spggetbitmap
• spggettuple
• spginsert
• spgmarkpos
• spgmerge
• spgoptions
• spgrescan
• spgrestrpos
• spgvacuumcleanup
• split_part
• sqrt
• statement_timestamp
• stddev
• stddev_pop
• stddev_samp
• string_agg
• string_agg_finalfn
• string_agg_transfn
• string_to_array
• strip
• strpos
• substr
• substrb
• substring
• substring_inner
• sum
• suppress_redundant_updates_trigger
• sysdate
• table_data_skewness
• table_distribution
• table_to_xml
• table_to_xml_and_xmlschema
• table_to_xmlschema
• tablespace_oid_name
• tan
• text
• text_date
• text_float4
• text_float8
• text_ge
• text_gt
• text_int1
• text_int2
• text_int4
• text_int8
• text_larger
• text_le

• text_lt

• text_numeric

• text_pattern_ge

• text_pattern_gt

• text_pattern_le

• text_pattern_lt

• text_smaller

• text_timestamp

• textanycat

• textcat

• texteq

• texticlike

• texticnlike

• texticregexeq

• texticregexne

• textin

• textlen

• textlike

• textne

• textnlike

• textout

• textrecv

• textregexeq

• textregexne

• textsend

• thesaurus_init

• thesaurus_lexize

• threadpool_status

• tideq

• tidge

• tidgt

• tidin

• tidlarger

• tidle

• tidlt

• tidne

• tidout

• tidrecv

• tidsend

• tidsmaller

• time

• time_cmp

• time_eq

• time_ge

• time_gt

• time_hash

• time_in

• time_larger

• time_le

• time_lt

• time_mi_interval

• time_mi_time

• time_ne

• time_out

• time_pl_interval

• time_recv

• time_send

• time_smaller

• time_transform

• timedate_pl

• timemi

• timenow

• timeofday

• timepl

• timestamp

• timestamp_cmp

• timestamp_cmp_date

• timestamp_cmp_timestamptz

• timestamp_diff

• timestamp_eq

• timestamp_eq_date

• timestamp_eq_timestamptz

• timestamp_ge

• timestamp_ge_date

• timestamp_ge_timestamptz

• timestamp_gt

• timestamp_gt_date

• timestamp_gt_timestamptz

• timestamp_hash

• timestamp_in

• timestamp_larger

• timestamp_le

• timestamp_le_date

• timestamp_le_timestamptz

• timestamp_list_agg_noarg2_transfn

• timestamp_list_agg_transfn

• timestamp_lt

• timestamp_lt_date

• timestamp_lt_timestamptz

• timestamp_mi

• timestamp_mi_interval

• timestamp_ne

• timestamp_ne_date

• timestamp_ne_timestamptz

• timestamp_out

• timestamp_pl_interval

• timestamp_recv

• timestamp_send

• timestamp_smaller

• timestamp_sortsupport

• timestamp_text

• timestamp_transform

• timestamp_varchar

• timestamptypmodin

• timestamptypmodout

• timestamptz

• timestamptz_cmp

• timestamptz_cmp_date

• timestamptz_cmp_timestamp

• timestamptz_eq

• timestamptz_eq_date

• timestamptz_eq_timestamp

• timestamptz_ge

• timestamptz_ge_date

• timestamptz_ge_timestamp

• timestamptz_gt

• timestamptz_gt_date

• timestamptz_gt_timestamp

• timestamptz_in

• timestamptz_larger

• timestamptz_le

• timestamptz_le_date

• timestamptz_le_timestamp

• timestamptz_list_agg_noarg2_transfn

• timestamptz_list_agg_transfn

• timestamptz_lt

• timestamptz_lt_date

• timestamptz_lt_timestamp

• timestamptz_mi

• timestamptz_mi_interval

• timestamptz_ne

• timestamptz_ne_date

• timestamptz_ne_timestamp

• timestamptz_out

• timestamptz_pl_interval

• timestamptz_recv

• timestamptz_send

• timestamptz_smaller

• timestamptztypmodin

• timestamptztypmodout

• timestampzone_text

• timetypmodin

• timetypmodout

• timetz

• timetz_cmp

• timetz_eq

• timetz_ge

• timetz_gt

• timetz_hash

• timetz_in

• timetz_larger

• timetz_le

• timetz_lt

• timetz_mi_interval

• timetz_ne

• timetz_out

• timetz_pl_interval

• timetz_recv

• timetz_send

• timetz_smaller

• timetzdate_pl

• timetztypmodin

• timetztypmodout

• timezone

• tinterval

• tintervalct

• tintervalend

• tintervaleq

• tintervalge

• tintervalgt

• tintervalin

• tintervalle

• tintervalleneq

• tintervallenge

• tintervallengt

• tintervallenle

• tintervallenlt

• tintervallenne

• tintervallt

• tintervalne

• tintervalout

• tintervalov

• tintervalrecv

• tintervalrel

• tintervalsame

• tintervalsend

• tintervalstart

• to_ascii

• to_char

• to_date

• to_hex

• to_number

• to_timestamp

• to_tsquery

• to_tsvector

• to_tsvector_for_batch

• total_cpu

• total_memory

• track_model_train_opt

• transaction_timestamp

• translate

• trigger_in

• trigger_out

• trunc

• ts_headline

• ts_lexize

• ts_match_qv

• ts_match_tq

• ts_match_tt

• ts_match_vq

• ts_parse

• ts_rank

• ts_rank_cd

• ts_rewrite

• ts_stat

• ts_token_type

• ts_typanalyze

• tsmatchjoinsel

• tsmatchsel

• tsq_mcontained

• tsq_mcontains

• tsquery_and

• tsquery_cmp

• tsquery_eq

• tsquery_ge

• tsquery_gt

• tsquery_le

• tsquery_lt

• tsquery_ne

• tsquery_not

• tsquery_or

• tsqueryin

• tsqueryout

• tsqueryrecv

• tsquerysend

• tsrange

• tsrange_subdiff

• tstzrange

• tstzrange_subdiff

• tsvector_cmp

• tsvector_concat

• tsvector_eq

• tsvector_ge

• tsvector_gt

• tsvector_le

• tsvector_lt

• tsvector_ne

• tsvector_update_trigger

• tsvector_update_trigger_column

• tsvectorin

• tsvectorout

• tsvectorrecv

• tsvectorsend

• txid_current

• txid_current_snapshot

• txid_snapshot_in

• txid_snapshot_out

• txid_snapshot_recv

• txid_snapshot_send

• txid_snapshot_xip

• txid_snapshot_xmax

• txid_snapshot_xmin

• txid_visible_in_snapshot

• unique_key_recheck

• unknownin

• unknownout

• unknownrecv

• unknownsend

• unnest

• update_pgjob

• upper

• upper_inc

• upper_inf

• uuid_cmp

• uuid_eq

• uuid_ge

• uuid_gt

• uuid_hash

• uuid_in

• uuid_le

• uuid_lt

• uuid_ne

• uuid_out

• uuid_recv

• uuid_send

• var_pop

• var_samp

• varbit

• varbit_in

• varbit_out

• varbit_recv

• varbit_send

• varbit_transform

• varbitcmp

• varbiteq

• varbitge

• varbitgt

• varbitle

• varbitlt

• varbitne

• varbittypmodin

• varbittypmodout

• varchar

• varchar_date

• varchar_float4

• varchar_float8

• varchar_int4

• varchar_int8

• varchar_numeric

• varchar_timestamp

• varchar_transform

• varcharin

• varcharout

• varcharrecv

• varcharsend

• varchartypmodin

• varchartypmodout

• variance

• version

• void_in

• void_out

• void_recv

• void_send

• wdr_xdb_query

• width

• width_bucket

• xideq

• xideq4

• xideqint4

• xideqint8

• xidin

• xidin4

• xidlt

• xidlt4

• xidout

• xidout4

• xidrecv

• xidrecv4

• xidsend

• xidsend4

• xml

• xml_in

• xml_is_well_formed

• xml_is_well_formed_content

• xml_is_well_formed_document

• xml_out

• xml_recv

• xml_send

• xmlagg

• xmlcomment

• xmlconcat2

• xmlexists

• xmlvalidate

• xpath

• xpath_exists

• zhprs_end

• zhprs_getlexeme

• zhprs_lextype

• zhprs_start