CData Python Connector for HDFS

Build 21.0.7930

Procedures

Procedures

A system table called "sys_procedures" is queried to obtain the available stored procedures that are executed:

import cdata.hdfs as mod
conn = mod.connect("Host=sandbox-hdp.hortonworks.com;Port=50070;Path=/user/root;")
cur = conn.cursor()
cmd = "SELECT * FROM sys_procedures"
cur.execute(cmd)
rs = cur.fetchall()
for row in rs:
	print(row)

Parameters

The input parameters of any stored procedure are similarly obtained from the "sys_procedureparameters" system table:

import cdata.hdfs as mod
conn = mod.connect("Host=sandbox-hdp.hortonworks.com;Port=50070;Path=/user/root;")
cur = conn.cursor()
cmd = "SELECT * FROM sys_procedureparameters WHERE ProcedureName = 'Open'"
cur.execute(cmd)
rs = cur.fetchall()
for row in rs:
	print(row)

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Build 21.0.7930