create interval-display*.sql

sql/core/src/test/resources/sql-tests/inputs/interval-display-iso_8601.sql

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+-- tests for interval output style with iso_8601 format
+--SET spark.sql.intervalOutputStyle = ISO_8601
+--import interval-display.sql

sql/core/src/test/resources/sql-tests/inputs/interval-display-sql_standard.sql

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+-- tests for interval output style with sql standard format
+--SET spark.sql.intervalOutputStyle = SQL_STANDARD
+--import interval-display.sql

sql/core/src/test/resources/sql-tests/inputs/interval-display.sql

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+-- tests for interval output style
+
+SELECT
+  cast(null as interval), -- null
+  interval '0 day', -- 0
+  interval '1 year', -- year only
+  interval '1 month', -- month only
+  interval '1 year 2 month', -- year month only
+  interval '1 day -1 hours',
+  interval '-1 day -1 hours',
+  interval '-1 day 1 hours',
+  interval '-1 days +1 hours',
+  interval '1 years 2 months -3 days 4 hours 5 minutes 6.789 seconds',
+  - interval '1 years 2 months -3 days 4 hours 5 minutes 6.789 seconds';

sql/core/src/test/resources/sql-tests/results/interval-display-iso_8601.sql.out

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+-- Automatically generated by SQLQueryTestSuite
+-- Number of queries: 1
+
+
+-- !query 0
+SELECT
+  cast(null as interval), -- null
+  interval '0 day', -- 0
+  interval '1 year', -- year only
+  interval '1 month', -- month only
+  interval '1 year 2 month', -- year month only
+  interval '1 day -1 hours',
+  interval '-1 day -1 hours',
+  interval '-1 day 1 hours',
+  interval '-1 days +1 hours',
+  interval '1 years 2 months -3 days 4 hours 5 minutes 6.789 seconds',
+  - interval '1 years 2 months -3 days 4 hours 5 minutes 6.789 seconds'
+-- !query 0 schema
+struct<CAST(NULL AS INTERVAL):interval,0 seconds:interval,1 years:interval,1 months:interval,1 years 2 months:interval,1 days -1 hours:interval,-1 days -1 hours:interval,-1 days 1 hours:interval,-1 days 1 hours:interval,1 years 2 months -3 days 4 hours 5 minutes 6.789 seconds:interval,-1 years -2 months 3 days -4 hours -5 minutes -6.789 seconds:interval>
+-- !query 0 output
+NULL	PT0S	P1Y	P1M	P1Y2M	P1DT-1H	P-1DT-1H	P-1DT1H	P-1DT1H	P1Y2M-3DT4H5M6.789S	P-1Y-2M3DT-4H-5M-6.789S

sql/core/src/test/resources/sql-tests/results/interval-display-sql_standard.sql.out

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+-- Automatically generated by SQLQueryTestSuite
+-- Number of queries: 1
+
+
+-- !query 0
+SELECT
+  cast(null as interval), -- null
+  interval '0 day', -- 0
+  interval '1 year', -- year only
+  interval '1 month', -- month only
+  interval '1 year 2 month', -- year month only
+  interval '1 day -1 hours',
+  interval '-1 day -1 hours',
+  interval '-1 day 1 hours',
+  interval '-1 days +1 hours',
+  interval '1 years 2 months -3 days 4 hours 5 minutes 6.789 seconds',
+  - interval '1 years 2 months -3 days 4 hours 5 minutes 6.789 seconds'
+-- !query 0 schema
+struct<CAST(NULL AS INTERVAL):interval,0 seconds:interval,1 years:interval,1 months:interval,1 years 2 months:interval,1 days -1 hours:interval,-1 days -1 hours:interval,-1 days 1 hours:interval,-1 days 1 hours:interval,1 years 2 months -3 days 4 hours 5 minutes 6.789 seconds:interval,-1 years -2 months 3 days -4 hours -5 minutes -6.789 seconds:interval>
+-- !query 0 output
+NULL	0	+1-0	+0-1	+1-2	+1 -1:00:00	-1 -1:00:00	-1 +1:00:00	-1 +1:00:00	+1-2 -3 +4:05:06.789	-1-2 +3 -4:05:06.789

sql/core/src/test/resources/sql-tests/results/interval-display.sql.out

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+-- Automatically generated by SQLQueryTestSuite
+-- Number of queries: 1
+
+
+-- !query 0
+SELECT
+  cast(null as interval), -- null
+  interval '0 day', -- 0
+  interval '1 year', -- year only
+  interval '1 month', -- month only
+  interval '1 year 2 month', -- year month only
+  interval '1 day -1 hours',
+  interval '-1 day -1 hours',
+  interval '-1 day 1 hours',
+  interval '-1 days +1 hours',
+  interval '1 years 2 months -3 days 4 hours 5 minutes 6.789 seconds',
+  - interval '1 years 2 months -3 days 4 hours 5 minutes 6.789 seconds'
+-- !query 0 schema
+struct<CAST(NULL AS INTERVAL):interval,0 seconds:interval,1 years:interval,1 months:interval,1 years 2 months:interval,1 days -1 hours:interval,-1 days -1 hours:interval,-1 days 1 hours:interval,-1 days 1 hours:interval,1 years 2 months -3 days 4 hours 5 minutes 6.789 seconds:interval,-1 years -2 months 3 days -4 hours -5 minutes -6.789 seconds:interval>
+-- !query 0 output
+NULL	0 seconds	1 years	1 months	1 years 2 months	1 days -1 hours	-1 days -1 hours	-1 days 1 hours	-1 days 1 hours	1 years 2 months -3 days 4 hours 5 minutes 6.789 seconds	-1 years -2 months 3 days -4 hours -5 minutes -6.789 seconds