1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
# name: test/sql/copy/csv/csv_names.test
# description: Read a CSV with names flags
# group: [csv]
statement ok
PRAGMA enable_verification
# Duplicate names shuold not be accepted
statement error
from read_csv('{DATA_DIR}/csv/header_bug.csv', names=['col1', 'col1']) LIMIT 1;
----
read_csv names must have unique values
# Empty Names should not be accepted
statement error
from read_csv('{DATA_DIR}/csv/header_bug.csv', names=['']) LIMIT 1;
----
read_csv names cannot have empty (or all whitespace) value
statement error
from read_csv('{DATA_DIR}/csv/header_bug.csv', names=[' ', ' '], header = 0);
----
read_csv names cannot have empty (or all whitespace) value
# no names provided
query IIII
select column00, column01, column02, column03 from '{DATA_DIR}/csv/real/lineitem_sample.csv' LIMIT 1;
----
1 15519 785 1
# override the names partially
query IIII
select l_orderkey, l_partkey, column02, column03 from read_csv_auto('{DATA_DIR}/csv/real/lineitem_sample.csv', names=['l_orderkey', 'l_partkey']) LIMIT 1;
----
1 15519 785 1
# empty list
query IIII
select column00, column01, column02, column03 from read_csv_auto('{DATA_DIR}/csv/real/lineitem_sample.csv', names=[]) LIMIT 1;
----
1 15519 785 1
# specify all names
query IIII
select l_orderkey, l_partkey, l_commitdate, l_comment from read_csv_auto('{DATA_DIR}/csv/real/lineitem_sample.csv', column_names=['l_orderkey', 'l_partkey', 'l_suppkey', 'l_linenumber', 'l_quantity', 'l_extendedprice', 'l_discount', 'l_tax', 'l_returnflag', 'l_linestatus', 'l_shipdate', 'l_commitdate', 'l_receiptdate', 'l_shipinstruct', 'l_shipmode', 'l_comment']) LIMIT 1;
----
1 15519 1996-02-12 egular courts above the
# specify too many names
statement error
select l_orderkey, l_partkey, l_commitdate, l_comment from read_csv_auto('{DATA_DIR}/csv/real/lineitem_sample.csv', names=['l_orderkey', 'l_partkey', 'l_suppkey', 'l_linenumber', 'l_quantity', 'l_extendedprice', 'l_discount', 'l_tax', 'l_returnflag', 'l_linestatus', 'l_shipdate', 'l_commitdate', 'l_receiptdate', 'l_shipinstruct', 'l_shipmode', 'l_comment', 'xx']) LIMIT 1;
----
Error when sniffing file "{DATA_DIR}/csv/real/lineitem_sample.csv".
# specify names on a file with a header
query II
select yr, Quarter from read_csv_auto('{DATA_DIR}/csv/real/ontime_sample.csv', names=['yr']) LIMIT 1;
----
1988 1
# NULL
statement error
select column00, column01, column02, column03 from read_csv_auto('{DATA_DIR}/csv/real/lineitem_sample.csv', names=NULL) LIMIT 1;
----
read_csv names cannot be NULL
# specify the names twice
statement error
select l_orderkey, l_partkey, column02, column03 from read_csv_auto('{DATA_DIR}/csv/real/lineitem_sample.csv', names=['l_orderkey', 'l_partkey'], column_names=['l_orderkey']) LIMIT 1;
----
read_csv column_names/names can only be supplied once
statement error
select l_orderkey, l_partkey, column02, column03 from read_csv_auto('{DATA_DIR}/csv/real/lineitem_sample.csv', names=42) LIMIT 1;
----
Failed to cast value: Unimplemented type for cast (INTEGER -> VARCHAR[])
# specify options delim and sep
statement error
select column00 from read_csv_auto('{DATA_DIR}/csv/real/lineitem_sample.csv', delim='|', sep='|') LIMIT 1;
----
CSV Reader function option delim and sep are aliases, only one can be supplied
# duplicate names
statement error
select l_orderkey, l_partkey, column02, column03 from read_csv_auto('{DATA_DIR}/csv/real/lineitem_sample.csv', names=['l_orderkey', 'l_orderkey']) LIMIT 1;
----
read_csv names must have unique values. "l_orderkey" is repeated.
query I
select Columns FROM sniff_csv('{DATA_DIR}/csv/header.csv', names = ['a'])
----
[{'name': a, 'type': VARCHAR}]
query I
FROM read_csv('{DATA_DIR}/csv/header.csv', names = ['a'])
----
line2
line3
query I
select Columns FROM sniff_csv('{DATA_DIR}/csv/header.csv', names = ['a'], header = false)
----
[{'name': a, 'type': VARCHAR}]
query I
FROM read_csv('{DATA_DIR}/csv/header.csv', names = ['a'], header = false)
----
line1
line2
line3
query I
select Columns FROM sniff_csv('{DATA_DIR}/csv/header_2.csv', names = ['a'])
----
[{'name': a, 'type': VARCHAR}, {'name': line1_2, 'type': VARCHAR}, {'name': line1_3, 'type': VARCHAR}]
query III
FROM read_csv('{DATA_DIR}/csv/header_2.csv', names = ['a'])
----
line2 line2_2 line2_3
line3 line3_2 line3_3
query I
select Columns FROM sniff_csv('{DATA_DIR}/csv/header_2.csv', names = ['a'], header=False)
----
[{'name': a, 'type': VARCHAR}, {'name': column1, 'type': VARCHAR}, {'name': column2, 'type': VARCHAR}]
statement error
select Columns FROM sniff_csv('{DATA_DIR}/csv/header_2.csv', names = ['a','b','c','d'])
----
Error when sniffing file "{DATA_DIR}/csv/header_2.csv"
query I
select Columns FROM sniff_csv('{DATA_DIR}/csv/header_2.csv', names = ['a','b','c','d'], null_padding = True)
----
[{'name': a, 'type': VARCHAR}, {'name': b, 'type': VARCHAR}, {'name': c, 'type': VARCHAR}, {'name': d, 'type': VARCHAR}]
query IIII
FROM read_csv('{DATA_DIR}/csv/header_2.csv', names = ['a','b','c','d'], null_padding = True)
----
line2 line2_2 line2_3 NULL
line3 line3_2 line3_3 NULL
|
