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AVG used to contain a back and forth timezone conversion if use_local_tz_for_unix_timestamp_conversions is true. This could affect the results if there were values from different DST rules. Note that AVG on timestamps has other issues besides this, see IMPALA-7472 for details. Testing: - added a regression test Change-Id: I999099de8e07269b96b75d473f5753be4479cecd Reviewed-on: http://gerrit.cloudera.org:8080/17412 Reviewed-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com> Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
114 lines
3.9 KiB
Plaintext
114 lines
3.9 KiB
Plaintext
====
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---- QUERY
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# Tests for unix_micros_to_utc_timestamp().
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# Set timezone to CET to ensure that the local time is never UTC.
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SET timezone=CET;
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SELECT
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unix_micros_to_utc_timestamp(NULL),
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unix_micros_to_utc_timestamp(0),
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unix_micros_to_utc_timestamp(1),
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unix_micros_to_utc_timestamp(-17987443200 * 1000000),
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unix_micros_to_utc_timestamp(253402300799 * 1000000),
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unix_micros_to_utc_timestamp(253402300799 * 1000000 + 1),
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unix_micros_to_utc_timestamp(-17987443200 * 1000000 - 1);
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---- TYPES
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TIMESTAMP,TIMESTAMP,TIMESTAMP,TIMESTAMP,TIMESTAMP,TIMESTAMP,TIMESTAMP
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---- RESULTS
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NULL,1970-01-01 00:00:00,1970-01-01 00:00:00.000001000,1400-01-01 00:00:00,9999-12-31 23:59:59,9999-12-31 23:59:59.000001000,NULL
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====
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---- QUERY
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# This following test is copied from local-timestamp-functions.test as from IMPALA-10171
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# flag use_local_tz_for_unix_timestamp_conversions can be overriden with a query option.
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# TODO: remove/reduce this test duplication
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SET timezone=CET;
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SET use_local_tz_for_unix_timestamp_conversions=1;
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SELECT
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from_unixtime(0),
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from_unixtime((40 * 365) * 24 * 60 * 60),
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from_unixtime((180 + 40 * 365) * 24 * 60 * 60);
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---- TYPES
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STRING,STRING,STRING
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---- RESULTS
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'1970-01-01 01:00:00','2009-12-22 01:00:00','2010-06-20 02:00:00'
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====
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---- QUERY
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# This following test is copied from local-timestamp-functions.test as from IMPALA-10171
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# flag use_local_tz_for_unix_timestamp_conversions can be overriden with a query option.
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# TODO: remove/reduce this test duplication
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set timezone="America/Los_Angeles";
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SET use_local_tz_for_unix_timestamp_conversions=1;
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SELECT
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from_unixtime(0),
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from_unixtime((40 * 365) * 24 * 60 * 60),
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from_unixtime((180 + 40 * 365) * 24 * 60 * 60);
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---- TYPES
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STRING,STRING,STRING
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---- RESULTS
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'1969-12-31 16:00:00','2009-12-21 16:00:00','2010-06-19 17:00:00'
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====
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---- QUERY
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# This following test is copied from local-timestamp-functions.test as from IMPALA-10171
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# flag use_local_tz_for_unix_timestamp_conversions can be overriden with a query option.
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# TODO: remove/reduce this test duplication
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SET timezone=CET;
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SET use_local_tz_for_unix_timestamp_conversions=1;
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SELECT
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unix_timestamp('1970-01-01 01:00:00'),
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unix_timestamp('2009-12-22 01:00:00'),
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unix_timestamp('2010-06-20 02:00:00');
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---- TYPES
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BIGINT,BIGINT,BIGINT
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---- RESULTS
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0,1261440000,1276992000
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====
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---- QUERY
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# This following test is copied from local-timestamp-functions.test as from IMPALA-10171
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# flag use_local_tz_for_unix_timestamp_conversions can be overriden with a query option.
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# TODO: remove/reduce this test duplication
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set timezone="America/Los_Angeles";
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SET use_local_tz_for_unix_timestamp_conversions=1;
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SELECT
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unix_timestamp('1969-12-31 16:00:00'),
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unix_timestamp('2009-12-21 16:00:00'),
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unix_timestamp('2010-06-19 17:00:00');
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---- TYPES
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BIGINT,BIGINT,BIGINT
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---- RESULTS
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0,1261440000,1276992000
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====
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---- QUERY
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# This following test is copied from local-timestamp-functions.test as from IMPALA-10171
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# flag use_local_tz_for_unix_timestamp_conversions can be overriden with a query option.
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# TODO: remove/reduce this test duplication
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SET timezone=CET;
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SET use_local_tz_for_unix_timestamp_conversions=1;
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select cast(0 as timestamp);
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---- TYPES
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TIMESTAMP
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---- RESULTS
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1970-01-01 01:00:00
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====
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---- QUERY
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# This following test is copied from local-timestamp-functions.test as from IMPALA-10171
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# flag use_local_tz_for_unix_timestamp_conversions can be overriden with a query option.
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# TODO: remove/reduce this test duplication
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SET timezone="America/Los_Angeles";
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SET use_local_tz_for_unix_timestamp_conversions=1;
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select cast(0 as timestamp);
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---- TYPES
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TIMESTAMP
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---- RESULTS
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1969-12-31 16:00:00
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====
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---- QUERY
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# Regression test for IMPALA-5121. AVG used to contain a back and forth timezone
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# conversion (if use_local_tz_for_unix_timestamp_conversions is true) that could affect
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# the results if there were values from different DST rules.
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SET timezone=CET;
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SET use_local_tz_for_unix_timestamp_conversions=1;
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select avg(timestamp_col) from functional.alltypestiny;
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---- TYPES
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TIMESTAMP
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---- RESULTS
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2009-02-15 00:00:30
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==== |