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Function
- #arg
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- $( d)dql...
- $(db)sql;…
- ${macroExp}
- =expression
- >statement
- [a:b]
- @
- @x:…
- ~(i)
- A()
- A. (x,…)
- [a1,…,an]
- abs()
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- age()
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- ali_close()
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- and ()
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- calls path/spl( … )
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- cmps ()
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- complex()
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- cov()
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- cuboid()
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- cursor()
- date()
- datederive()
- dateinterval()
- datetime()
- day()
- days()
- decimal()
- delete()
- deq()
- des ()
- desede ()
- derive()
- det()
- diff( )
- digits()
- directory()
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- dism()
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- E()
- E()
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- end s
- enum()
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- eq()
- error()
- eval()
- es_close ()
- es_delete ()
- es_export ()
- es_head ()
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- es_post ()
- es_put ()
- exec()
- execute()
- exists()
- exp()
- export()
- exportavro ()
- eye()
- f@o(…)
- Faccrint()
- Faccrintm()
- fact()
- false
- Fcoupcd()
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- Fdisc()
- Fduration()
- fetch()
- field()
- file()
- filename ()
- fill()
- fillcons ()
- fillfun ()
- fillmthd()
- find()
- Fintrate()
- finv()
- Firr()
- fisher_p()
- fjoin()
- float()
- floor()
- Fmirr()
- fname()
- fno()
- Fnper ()
- Fnpv()
- for
- fork
- format()
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- Frate()
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- freq ()
- Fsln()
- Fsyd()
- ftp_cd()
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- ftp_dir()
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- ftp_mget()
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- ftp_put()
- func()
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- Fyield()
- get()
- gcd()
- gcs_ bucket ()
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- gcs_ copy ()
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- gcs_ list ()
- gcs_ open ()
- goto C
- group()
- groupc()
- groupi()
- groupn()
- groups()
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- gzip ()
- hash ()
- hbase_close()
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- hosts()
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- I ()
- i()
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- id()
- if
- if()
- ifa()
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- ifind()
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- ifnumber()
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- ifr()
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- ift()
- iftime()
- ifv()
- ifx_close()
- ifx_conn()
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- influx_open ()
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- ismiss ()
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- iterate()
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- kafka_offset ()
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- left()
- len()
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- like()
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- load()
- lock()
- long()
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- m()
- mae()
- makimamthd()
- max()
- maxp()
- mcumsum()
- md5()
- median()
- memory()
- merge()
- mergex()
- mfind()
- mi()
- mid()
- millisecond()
- min()
- minp()
- minute()
- mmean()
- mnorm()
- mode()
- modify()
- mongo_close()
- mongo_open ()
- mongo_shell()
- month()
- movefile()
- movmthd ()
- mul()
- mse()
- mstd()
- msum()
- mvp()
- n.f(x)
- name()
- new()
- news()
- next {a}
- nodes()
- norm()
- norminv()
- not ()
- now()
- ntile()
- null
- number()
- numnorm()
- nvl()
- o()
- olap_close()
- olap_open ()
- olap_query ()
- ones()
- open()
- or()
- orc()
- oss_ bucket ()
- oss_ close ()
- oss_ copy ()
- oss_ file ()
- oss_ list ()
- oss_ open ()
- output()
- p()
- pad()
- parallel()
- parquet()
- parse()
- paste ()
- pca ()
- pchipmthd ()
- pdate()
- pearson ()
- penum()
- periods()
- permut()
- pfind()
- pi()
- pivot()
- pjoin()
- pls()
- pmax()
- pmin()
- polyfit()
- pos()
- power()
- prior()
- proc()
- product()
- proportion()
- property()
- pseg()
- pselect()
- pseudo()
- psort()
- ptop()
- push()
- Qconnect()
- Qdirectory ()
- Qenv()
- Qfile()
- Qload()
- Qlock()
- Qmove()
- query()
- r(T,F)
- r.(x,…)
- r.F
- r.F=x
- r2dbc_close()
- r2dbc_exec()
- r2dbc_open()
- r2dbc_query()
- rand ()
- rands()
- range()
- rank()
- ranki()
- rankm ()
- ranks()
- read()
- record()
- redis_close ()
- redis_command()
- redis_open ()
- regex()
- register()
- remainder()
- rename()
- replace ()
- report_config()
- report_export()
- report_export()
- report_insert()
- report_open()
- report_open()
- report_replace()
- report_run()
- report_write()
- reportlite_config()
- reportlite_export()
- reportlite_export()
- reportlite_insert()
- reportlite_open()
- reportlite_open()
- reportlite_replace()
- reportlite_run()
- reportlite_write()
- reset()
- result
- return xi
- rgb()
- ridge()
- right()
- rmmiss ()
- rmmissdim ()
- rollback()
- round()
- row()
- rsa ()
- run()
- rvs()
- s3_ bucket ()
- s3_ close ()
- s3_ copy ()
- s3_ file ()
- s3_ list ()
- s3_ open ()
- sap_client()
- sap_close()
- sap_cursor()
- sap_execute()
- sap_getparam()
- sap_table()
- savepoint()
- sbs()
- scriptsave()
- se()
- second()
- segp()
- select()
- seq()
- sert()
- setenum()
- sf_close()
- sf_open ()
- sf_query ()
- sf_wsdlclose ()
- sf_wsdlopen ()
- sf_wsdlquery ()
- sf_wsdlview ()
- sg ()
- shift()
- sign()
- sin()
- sinh()
- size()
- skew ()
- skip()
- sleep()
- smooth()
- sort()
- sortx()
- spark_hudi ()
- spark_ open()
- spark_close()
- spark_query()
- spark_read()
- spark_shell ()
- spearman ()
- splinemthd ()
- split()
- splserver ()
- sqlparse()
- sqltranslate ()
- substr ()
- stax_close()
- stax_open()
- stax_cursor()
- stax_query()
- sqrt()
- step()
- string()
- structure
- sum()
- svm()
- swap()
- switch()
- syncfile(hs,p)
- system()
- T()
- tarcorskew()
- tan()
- tanh()
- time()
- tinv()
- to()
- top()
- total()
- transpose()
- trim()
- true
- try
- ttest_p ()
- typeof(x)
- union( )
- update()
- upper ()
- urlencode()
- uuid()
- v()
- var()
- was_ bucket ()
- was_ close ()
- was_ copy ()
- was_ file ()
- was_ list ()
- was_ open ()
- web_crawl()
- webhdfs()
- webhdfs_file()
- words()
- workday()
- workdays()
- write()
- ws_call()
- ws_client()
- xjoin()
- xjoinx()
- xlscell()
- xlsclose()
- xlsexport ()
- xlsimport ()
- xlsmove()
- xlsopen()
- xlswrite()
- xml()
- xor()
- xunion( )
- year()
- ym2_close ()
- ym2_env ()
- ym2_mcfload ()
- ym2_model ()
- ym2_pcfload ()
- ym2_pcfsave ()
- ym2_predict()
- ym2_result()
- zeros()
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- zip_add()
- zip_close()
- zip_compress()
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- zip_encrypt()
- zip_extract()
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kafka_poll()
描述：
获取consumer消息记录, 返回序表。
语法：
kafka_poll (fd, timeout,[ partition1, partition2,…])
备注：
外部库函数，外部库的使用请参考《外部库使用指南》。
获取当前topic下的记录。无参数partition时，遍历当前topic下所有的分区。
参数：
|
fd |
consumer对象。 |
|
timeout |
poll循环间隔时间，缺省为1000ms。 |
|
partition |
topic的分区数，可以是整数或序列。 |
选项：
|
@c |
游标查询。 |
返回值：
序表/游标
示例：
|
|
A |
|
|
1 |
=kafka_open("D://kafka.properties","topic-test") |
连接kafka server 。 |
|
2 |
=kafka_poll(A1) |
获取topic-test下的记录。 |
|
3 |
=kafka_poll@c(A1).fetch() |
游标方式获取记录。 |
|
4 |
=kafka_poll(A1,2000) |
|
|
5 |
=kafka_open (file("D://kafka.properties"),"topic-test1") |
|
|
6 |
=kafka_offset(A5,2,0) |
将topic-test1分区0下的记录设置位移为2。 |
|
7 |
=kafka_poll(A5,1000,0) |
获取分区0下的记录。 |
|
8 |
=kafka_poll(A5,1000,[1,2]) |
获取分区1和分区2下的记录。 |
|
9 |
=kafka_close(A1) |
|