我正在使用标准SQL和javascript UDF在bigquery中编写查询。我能够使用WebUI和bigquery命令行工具实现这一点,但我的要求是使用google python客户端进行此查询。无法实现这一目标。请有人帮忙。
from google.cloud import bigquery
bigquery_client = bigquery.Client()
client = bigquery.Client()
query_results = client.run_sync_query("""
CREATE TEMPORARY FUNCTION CategoriesToNumerical(a array<STRING>,b array<STRING>)
RETURNS string
LANGUAGE js AS """
var values = {};
var counter = 0;
for(i=0;i<a.length;i++)
{ var temp;
temp = a[i];
a[i] = counter;
values[temp] = counter;
counter ++;
}
for(i=0;i<b.length;i++)
{
for(var key in values)
{
if(b[i] == key)
{
b[i] = values[key];
}
}
}
return b;
""";
SELECT
CategoriesToNumerical(ARRAY(SELECT DISTINCT ProspectStage from lsq.lsq_dest),ARRAY(SELECT ProspectStage from lsq.lsq_dest)) as prospectstageds
;""")
query_results.use_legacy_sql = False
query_results.run()
page_token = None
while True:
rows1, total_rows, page_token = query_results.fetch_data(
max_results=100,
page_token=page_token)
for row1 in rows1:
print "row",row1
if not page_token:
break
这对我不起作用。请有人帮我解决这个问题。
答案 0 :(得分:1)
问题似乎是你有两套冲突的&#34;&#34;&#34;。将其中一个替换为三个&#39;&#39;&#39;&#39;&#39;&#39;&#39;&#39;&#39;&#39;&#39;&#39;&#39
所以而不是
query_results = client.run_sync_query("""
CREATE TEMPORARY FUNCTION CategoriesToNumerical(a array<STRING>,b array<STRING>)
RETURNS string
LANGUAGE js AS """
javacript code
"""
SELECT *
FROM
"""
写
query_results = client.run_sync_query('''
CREATE TEMPORARY FUNCTION CategoriesToNumerical(a array<STRING>,b array<STRING>)
RETURNS string
LANGUAGE js AS """
javacript code
"""
SELECT *
FROM
'''