mysql - 使用 bq load 加载带有 NULL 列的 CSV

Question

我正在尝试使用 bq 工具将在 mysql(使用 outfile)中生成的 CSV 文件(实际上是 TSV)上传到 Bigquery。该表具有以下架构:

这是示例数据文件:

"6.02"  "0000"  "101"   \N  "Md Fiesta Chicken|1|6.69|M|300212|100|100^M Sourdough|1|0|M|51301|112|112" "6.5"   \N  "V03"   "24270310376"   "10/17/2014 3:34 PM"    "6.02"  "30103" "452"   "302998"    "2014-12-08 10:57:15"   \N

这就是我尝试使用 bq CLI 工具上传它的方式:

$ bq load -F '\t' --quote '"' --allow_jagged_rows receipt_archive.receipts /tmp/rec.csv
BigQuery error in load operation: Error processing job
'circular-gist-812:bqjob_r8d0bbc3192b065_0000014ab097c63c_1': Too many errors encountered. Limit is: 0.
Failure details:
- File: 0 / Line:1 / Field:16: Could not parse '\N' as a timestamp.
Required format is YYYY-MM-DD HH:MM[:SS[.SSSSSS]]

我认为问题在于 updated_at 列为 NULL 并因此被跳过。那么知道如何告诉它考虑 null/空列吗？

Answer 1

CuriousMind - 这不是答案。只是使用 float 而不是小数的问题的一个例子......

CREATE TABLE fd (f FLOAT(5,2),d DECIMAL(5,2));

INSERT INTO fd VALUES (100.30,100.30),(100.70,100.70;

SELECT * FROM fd;
+--------+--------+
| f      | d      |
+--------+--------+
| 100.30 | 100.30 |
| 100.70 | 100.70 |
+--------+--------+

SELECT f/3+f/3+f/3,d/3+d/3+d/3 FROM fd;
+-------------+-------------+
| f/3+f/3+f/3 | d/3+d/3+d/3 |
+-------------+-------------+
|  100.300003 |  100.300000 |
|  100.699997 |  100.700000 |
+-------------+-------------+

SELECT (f/3)*3,(d/3)*3 FROM fd;
+------------+------------+
| (f/3)*3    | (d/3)*3    |
+------------+------------+
| 100.300003 | 100.300000 |
| 100.699997 | 100.700000 |
+------------+------------+

但我听到你问，为什么这是个问题？

好吧，考虑以下...

SELECT * FROM fd WHERE f <= 100.699997;
+--------+--------+
| f      | d      |
+--------+--------+
| 100.30 | 100.30 |
| 100.70 | 100.70 |
+--------+--------+

...现在确定这不是处理金钱时所期望的？