Files
impala/testdata/workloads/functional-query/queries/QueryTest/misc.test
Tim Armstrong 85166afa8a IMPALA-6374: fix handling of commas in .test files
The .test file parser implemented an unconventional method for parsing
single-quoted strings in comma-separated value format. This didn't handle
trailing commas in the string correctly.

This commit switches to using a conventional method for parsing
comma-separated value format:
* Commas enclosed by single quotes are not treated as field separators
* Single quotes can be escaped within a string by doubling them.

I looked into using Python's .csv module for this, but it wouldn't
work without modifying the test file format more because it
automatically discards the quotes during parsing, which are actually
semantically important in .test files. E.g. without the quotes we can't
distinguish between the literal string 'regex:...' and the regex
regex:....

Testing:
Ran exhaustive tests and fixed .test files that required modifications.
Will rerun before merging.

Added a couple of tests to exercise edge cases in the test file parser.

Change-Id: I18ddcb0440490ddf8184be66d3681038a1615dd9
Reviewed-on: http://gerrit.cloudera.org:8080/11800
Reviewed-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
Tested-by: Tim Armstrong <tarmstrong@cloudera.com>
2018-10-30 22:17:49 +00:00

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====
---- QUERY
# Test to select from table with additional columns at the end that are not in the
# schema and with missing columns
select * from tblwithraggedcolumns
---- RESULTS
'hello',1
'\\r\\r\\n',NULL
'',NULL
'foo',2
'a',3
'',NULL
'b',4
'c',NULL
'd',NULL
'ColumnWithCarriageReturn',123
'at16bytes',NULL
'NoDelimiter',0
---- TYPES
string, int
====
---- QUERY
select int_col from tblwithraggedcolumns
---- RESULTS
0
1
123
2
3
4
NULL
NULL
NULL
NULL
NULL
NULL
---- TYPES
int
====
---- QUERY
select str_col from tblwithraggedcolumns
---- RESULTS
'hello'
'\\r\\r\\n'
''
'foo'
'a'
''
'b'
'c'
'd'
'ColumnWithCarriageReturn'
'at16bytes'
'NoDelimiter'
---- TYPES
string
====
---- QUERY
# Quoting test
SELECT `table_alias`.`int_col` AS `default_int_col`
FROM `functional`.`alltypes` `table_alias`
GROUP BY `default_int_col`
LIMIT 10
---- RESULTS
0
7
3
9
4
6
1
5
2
8
---- TYPES
int
====
---- QUERY
# Test string-literal escape sequences
SELECT ASCII("\0"), ASCII("\\"), ASCII("\b"), ASCII("\n"), ASCII("\r"), ASCII("\t"), ASCII("\Z")
---- RESULTS
0,92,8,10,13,9,26
---- TYPES
int, int, int, int, int, int, int
====
---- QUERY
# Test escaping non-escape chars. We expect the escape to be simply removed.
SELECT ASCII("\a"), ASCII("\X"), ASCII("\z"), ASCII("\?"), ASCII("\*")
---- RESULTS
97,88,122,63,42
---- TYPES
int, int, int, int, int
====
---- QUERY
# Test escaping '%' and '_' which handled specially.
# We expect '\\%' and '\%' to result in '\%' (similarly for '_')
SELECT "\%", "\\%", "\_", "\\_"
---- RESULTS
'\\%','\\%','\\_','\\_'
---- TYPES
string, string, string, string
====
---- QUERY
# Test query filed in IMPALA-65
SELECT "quote \"", 'quote \''
---- RESULTS
'quote "','quote '''
---- TYPES
string, string
====
---- QUERY
# Select from table that contains unsupported primitive types
SELECT int_col, str_col, bigint_col from functional.unsupported_types
---- RESULTS
0,'aaaa',0
1,'bbbb',10
2,'cccc',20
NULL,'NULL',NULL
4,'eeee',40
---- TYPES
int, string, bigint
====
---- QUERY
# where clause is a SlotRef
SELECT count(*) from functional.alltypes where bool_col
---- RESULTS
3650
---- TYPES
bigint
====
---- QUERY
# having clause is a SlotRef
SELECT count(*) from functional.alltypes group by bool_col having bool_col
---- RESULTS
3650
---- TYPES
bigint
====
---- QUERY
# IMPALA-3812: Verfiy that the correct error message is shown when the star expansion adds
# the DATE unsupported type to the select list.
select * from functional.unsupported_types
---- CATCH
Unsupported type 'DATE' in 'functional.unsupported_types.date_col'.
====
---- QUERY
# IMPALA-3812: Verfiy that DATE type is displayed correctly in the describe table.
describe functional.unsupported_types
---- RESULTS
'int_col','int',''
'dec_col','decimal(10,0)',''
'date_col','date',''
'str_col','string',''
'bin_col','binary',''
'bigint_col','bigint',''
---- TYPES
STRING, STRING, STRING
====