使用 python 将数据复制到 Vertica

Question

我使用python库vertica-python将COPY数据传输到Vertica数据库

connection = vertica_python.connect(**conn_info)
vsql_cur = connection.cursor()

with open("/tmp/vertica-test-insert", "rb") as fs:
    vsql_cur.copy( "COPY table FROM STDIN DELIMITER ',' ", fs, buffer_size=65536)
    connection.commit()

它插入数据，但只插入 5 行，尽管文件包含更多数据。这可能与数据库设置有关还是某些客户端问题？

Answer 1

这段代码对我有用：

对于 JSON

# for json file
with open("D:/SampleCSVFile_2kb/tweets.json", "rb") as fs:
    my_file = fs.read().decode('utf-8')
    cur.copy( "COPY STG.unstruc_data FROM STDIN parser fjsonparser()", my_file)
    connection.commit()

对于 CSV

# for csv file
with open("D:/SampleCSVFile_2kb/SampleCSVFile_2kb.csv", "rb") as fs:
    my_file = fs.read().decode('utf-8','ignore')
    cur.copy( "COPY STG.unstruc_data FROM STDIN PARSER FDELIMITEDPARSER (delimiter=',', header='false') ", my_file) # buffer_size=65536
    connection.commit()