82 lines
2.0 KiB
SQL
82 lines
2.0 KiB
SQL
# name: test/optimizer/ordered_aggregate.test
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# description: Test ORDER BY in AGGREGATE clause optimizations
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# group: [optimizer]
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statement ok
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CREATE TABLE integers(grp INTEGER, i INTEGER);
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statement ok
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INSERT INTO integers VALUES (1, 10), (2, 15), (1, 30), (2, 20)
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# duplicate expressions are removed
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query I nosort order_by_agg
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EXPLAIN SELECT FIRST(i ORDER BY i) FROM integers
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----
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query I nosort order_by_agg
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EXPLAIN SELECT FIRST(i ORDER BY i, i, i) FROM integers
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----
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query I nosort order_by_agg
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EXPLAIN SELECT FIRST(i ORDER BY i, i DESC, i DESC NULLS FIRST) FROM integers
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----
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# groups are removed
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query I nosort order_by_agg_grp
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EXPLAIN SELECT grp, FIRST(i ORDER BY i) FROM integers GROUP BY grp ORDER BY grp
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----
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query I nosort order_by_agg_grp
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EXPLAIN SELECT grp, FIRST(i ORDER BY grp, i) FROM integers GROUP BY grp ORDER BY grp
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----
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query I nosort order_by_agg_grp
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EXPLAIN SELECT grp, FIRST(i ORDER BY grp, i, grp DESC, i DESC) FROM integers GROUP BY grp ORDER BY grp
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----
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# now with no remaining aggregates
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query I nosort order_by_none
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EXPLAIN SELECT grp, FIRST(i) FROM integers GROUP BY grp ORDER BY grp
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----
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query I nosort order_by_none
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EXPLAIN SELECT grp, FIRST(i ORDER BY grp) FROM integers GROUP BY grp ORDER BY grp
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----
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query I nosort order_by_none
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EXPLAIN SELECT grp, FIRST(i ORDER BY grp, grp DESC, grp DESC NULLS FIRST) FROM integers GROUP BY grp ORDER BY grp
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----
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# ORDER BY is removed from aggregates for which it has no effect
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query I nosort order_by_min
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EXPLAIN SELECT MIN(i) FROM integers
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----
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query I nosort order_by_min
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EXPLAIN SELECT MIN(i ORDER BY i) FROM integers
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----
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query I nosort order_by_max
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EXPLAIN SELECT MAX(i) FROM integers
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----
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query I nosort order_by_max
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EXPLAIN SELECT MAX(i ORDER BY i) FROM integers
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----
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query I nosort order_by_median
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EXPLAIN SELECT MEDIAN(i) FROM integers
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----
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query I nosort order_by_median
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EXPLAIN SELECT MEDIAN(i ORDER BY i) FROM integers
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----
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query I nosort order_by_sum
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EXPLAIN SELECT SUM(i) FROM integers
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----
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query I nosort order_by_sum
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EXPLAIN SELECT SUM(i ORDER BY i) FROM integers
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----
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