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Analyzer ORDER BY read in order query plan add test
This commit is contained in:
Maksim Kita
parent
c391527c86
commit
23f0811267
@ -2,7 +2,6 @@
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00593_union_all_assert_columns_removed
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00717_merge_and_distributed
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00725_memory_tracking
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00940_order_by_read_in_order_query_plan
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01062_pm_all_join_with_block_continuation
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01064_incremental_streaming_from_2_src_with_feedback
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01083_expressions_in_engine_arguments
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@ -1,4 +1,4 @@
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SET optimize_read_in_order = 1, query_plan_read_in_order=1;
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SET optimize_read_in_order = 1, query_plan_read_in_order = 1, allow_experimental_analyzer = 0;
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drop table if exists tab;
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drop table if exists tab2;
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@ -0,0 +1,410 @@
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-- { echoOn }
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-- Exact match, single key
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select * from tab order by (a + b) * c;
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0 0 0 0
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0 0 0 0
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1 1 1 1
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1 1 1 1
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2 2 2 2
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2 2 2 2
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3 3 3 3
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3 3 3 3
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4 4 4 4
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4 4 4 4
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select * from (explain plan actions = 1 select * from tab order by (a + b) * c) where explain like '%sort description%';
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Prefix sort description: multiply(plus(a_0, b_1), c_2) ASC
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Result sort description: multiply(plus(a_0, b_1), c_2) ASC
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select * from tab order by (a + b) * c desc;
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4 4 4 4
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4 4 4 4
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3 3 3 3
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3 3 3 3
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2 2 2 2
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2 2 2 2
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1 1 1 1
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1 1 1 1
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0 0 0 0
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0 0 0 0
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select * from (explain plan actions = 1 select * from tab order by (a + b) * c desc) where explain like '%sort description%';
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Prefix sort description: multiply(plus(a_0, b_1), c_2) DESC
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Result sort description: multiply(plus(a_0, b_1), c_2) DESC
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-- Exact match, full key
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select * from tab order by (a + b) * c, sin(a / b);
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0 0 0 0
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0 0 0 0
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1 1 1 1
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1 1 1 1
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2 2 2 2
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2 2 2 2
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3 3 3 3
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3 3 3 3
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4 4 4 4
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4 4 4 4
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select * from (explain plan actions = 1 select * from tab order by (a + b) * c, sin(a / b)) where explain like '%sort description%';
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Prefix sort description: multiply(plus(a_0, b_1), c_2) ASC, sin(divide(a_0, b_1)) ASC
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Result sort description: multiply(plus(a_0, b_1), c_2) ASC, sin(divide(a_0, b_1)) ASC
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select * from tab order by (a + b) * c desc, sin(a / b) desc;
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4 4 4 4
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4 4 4 4
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3 3 3 3
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3 3 3 3
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2 2 2 2
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2 2 2 2
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1 1 1 1
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1 1 1 1
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0 0 0 0
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0 0 0 0
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select * from (explain plan actions = 1 select * from tab order by (a + b) * c desc, sin(a / b) desc) where explain like '%sort description%';
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Prefix sort description: multiply(plus(a_0, b_1), c_2) DESC, sin(divide(a_0, b_1)) DESC
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Result sort description: multiply(plus(a_0, b_1), c_2) DESC, sin(divide(a_0, b_1)) DESC
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-- Exact match, mixed direction
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select * from tab order by (a + b) * c desc, sin(a / b);
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4 4 4 4
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4 4 4 4
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3 3 3 3
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3 3 3 3
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2 2 2 2
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2 2 2 2
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1 1 1 1
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1 1 1 1
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0 0 0 0
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0 0 0 0
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select * from (explain plan actions = 1 select * from tab order by (a + b) * c desc, sin(a / b)) where explain like '%sort description%';
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Prefix sort description: multiply(plus(a_0, b_1), c_2) DESC
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Result sort description: multiply(plus(a_0, b_1), c_2) DESC, sin(divide(a_0, b_1)) ASC
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select * from tab order by (a + b) * c, sin(a / b) desc;
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0 0 0 0
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0 0 0 0
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1 1 1 1
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1 1 1 1
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2 2 2 2
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2 2 2 2
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3 3 3 3
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3 3 3 3
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4 4 4 4
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4 4 4 4
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select * from (explain plan actions = 1 select * from tab order by (a + b) * c, sin(a / b) desc) where explain like '%sort description%';
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Prefix sort description: multiply(plus(a_0, b_1), c_2) ASC
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Result sort description: multiply(plus(a_0, b_1), c_2) ASC, sin(divide(a_0, b_1)) DESC
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-- Wrong order, full sort
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select * from tab order by sin(a / b), (a + b) * c;
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1 1 1 1
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1 1 1 1
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2 2 2 2
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2 2 2 2
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3 3 3 3
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3 3 3 3
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4 4 4 4
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4 4 4 4
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0 0 0 0
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0 0 0 0
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select * from (explain plan actions = 1 select * from tab order by sin(a / b), (a + b) * c) where explain ilike '%sort description%';
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Sort description: sin(divide(a_0, b_1)) ASC, multiply(plus(a_0, b_1), c_2) ASC
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-- Fixed point
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select * from tab where (a + b) * c = 8 order by sin(a / b);
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2 2 2 2
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2 2 2 2
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select * from (explain plan actions = 1 select * from tab where (a + b) * c = 8 order by sin(a / b)) where explain ilike '%sort description%';
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Prefix sort description: sin(divide(a_0, b_1)) ASC
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Result sort description: sin(divide(a_0, b_1)) ASC
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select * from tab where d + 1 = 2 order by (d + 1) * 4, (a + b) * c;
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1 1 1 1
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1 1 1 1
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select * from (explain plan actions = 1 select * from tab where d + 1 = 2 order by (d + 1) * 4, (a + b) * c) where explain ilike '%sort description%';
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Prefix sort description: multiply(plus(d_3, 1_UInt8), 4_UInt8) ASC, multiply(plus(a_0, b_1), c_2) ASC
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Result sort description: multiply(plus(d_3, 1_UInt8), 4_UInt8) ASC, multiply(plus(a_0, b_1), c_2) ASC
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select * from tab where d + 1 = 3 and (a + b) = 4 and c = 2 order by (d + 1) * 4, sin(a / b);
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2 2 2 2
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2 2 2 2
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select * from (explain plan actions = 1 select * from tab where d + 1 = 3 and (a + b) = 4 and c = 2 order by (d + 1) * 4, sin(a / b)) where explain ilike '%sort description%';
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Prefix sort description: multiply(plus(d_3, 1_UInt8), 4_UInt8) ASC, sin(divide(a_0, b_1)) ASC
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Result sort description: multiply(plus(d_3, 1_UInt8), 4_UInt8) ASC, sin(divide(a_0, b_1)) ASC
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-- Wrong order with fixed point
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select * from tab where (a + b) * c = 8 order by sin(b / a);
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2 2 2 2
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2 2 2 2
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select * from (explain plan actions = 1 select * from tab where (a + b) * c = 8 order by sin(b / a)) where explain ilike '%sort description%';
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Sort description: sin(divide(b_1, a_0)) ASC
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-- Monotonicity
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select * from tab order by intDiv((a + b) * c, 2);
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0 0 0 0
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0 0 0 0
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1 1 1 1
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1 1 1 1
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2 2 2 2
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2 2 2 2
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3 3 3 3
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3 3 3 3
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4 4 4 4
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4 4 4 4
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select * from (explain plan actions = 1 select * from tab order by intDiv((a + b) * c, 2)) where explain like '%sort description%';
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Prefix sort description: intDiv(multiply(plus(a_0, b_1), c_2), 2_UInt8) ASC
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Result sort description: intDiv(multiply(plus(a_0, b_1), c_2), 2_UInt8) ASC
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select * from tab order by intDiv((a + b) * c, 2), sin(a / b);
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0 0 0 0
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0 0 0 0
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1 1 1 1
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1 1 1 1
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2 2 2 2
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2 2 2 2
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3 3 3 3
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3 3 3 3
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4 4 4 4
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4 4 4 4
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select * from (explain plan actions = 1 select * from tab order by intDiv((a + b) * c, 2), sin(a / b)) where explain like '%sort description%';
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Prefix sort description: intDiv(multiply(plus(a_0, b_1), c_2), 2_UInt8) ASC
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Result sort description: intDiv(multiply(plus(a_0, b_1), c_2), 2_UInt8) ASC, sin(divide(a_0, b_1)) ASC
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-- select * from tab order by (a + b) * c, intDiv(sin(a / b), 2);
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select * from (explain plan actions = 1 select * from tab order by (a + b) * c, intDiv(sin(a / b), 2)) where explain like '%sort description%';
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Prefix sort description: multiply(plus(a_0, b_1), c_2) ASC, intDiv(sin(divide(a_0, b_1)), 2_UInt8) ASC
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Result sort description: multiply(plus(a_0, b_1), c_2) ASC, intDiv(sin(divide(a_0, b_1)), 2_UInt8) ASC
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-- select * from tab order by (a + b) * c desc , intDiv(sin(a / b), 2);
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select * from (explain plan actions = 1 select * from tab order by (a + b) * c desc , intDiv(sin(a / b), 2)) where explain like '%sort description%';
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Prefix sort description: multiply(plus(a_0, b_1), c_2) DESC
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Result sort description: multiply(plus(a_0, b_1), c_2) DESC, intDiv(sin(divide(a_0, b_1)), 2_UInt8) ASC
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-- select * from tab order by (a + b) * c, intDiv(sin(a / b), 2) desc;
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select * from (explain plan actions = 1 select * from tab order by (a + b) * c, intDiv(sin(a / b), 2) desc) where explain like '%sort description%';
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Prefix sort description: multiply(plus(a_0, b_1), c_2) ASC
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Result sort description: multiply(plus(a_0, b_1), c_2) ASC, intDiv(sin(divide(a_0, b_1)), 2_UInt8) DESC
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-- select * from tab order by (a + b) * c desc, intDiv(sin(a / b), 2) desc;
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select * from (explain plan actions = 1 select * from tab order by (a + b) * c desc, intDiv(sin(a / b), 2) desc) where explain like '%sort description%';
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Prefix sort description: multiply(plus(a_0, b_1), c_2) DESC, intDiv(sin(divide(a_0, b_1)), 2_UInt8) DESC
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Result sort description: multiply(plus(a_0, b_1), c_2) DESC, intDiv(sin(divide(a_0, b_1)), 2_UInt8) DESC
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-- select * from tab order by (a + b) * c desc, intDiv(sin(a / b), -2);
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select * from (explain plan actions = 1 select * from tab order by (a + b) * c desc, intDiv(sin(a / b), -2)) where explain like '%sort description%';
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Prefix sort description: multiply(plus(a_0, b_1), c_2) DESC, intDiv(sin(divide(a_0, b_1)), -2_Int8) ASC
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Result sort description: multiply(plus(a_0, b_1), c_2) DESC, intDiv(sin(divide(a_0, b_1)), -2_Int8) ASC
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-- select * from tab order by (a + b) * c desc, intDiv(intDiv(sin(a / b), -2), -3);
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select * from (explain plan actions = 1 select * from tab order by (a + b) * c desc, intDiv(intDiv(sin(a / b), -2), -3)) where explain like '%sort description%';
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Prefix sort description: multiply(plus(a_0, b_1), c_2) DESC
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Result sort description: multiply(plus(a_0, b_1), c_2) DESC, intDiv(intDiv(sin(divide(a_0, b_1)), -2_Int8), -3_Int8) ASC
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-- select * from tab order by (a + b) * c, intDiv(intDiv(sin(a / b), -2), -3);
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select * from (explain plan actions = 1 select * from tab order by (a + b) * c, intDiv(intDiv(sin(a / b), -2), -3)) where explain like '%sort description%';
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Prefix sort description: multiply(plus(a_0, b_1), c_2) ASC, intDiv(intDiv(sin(divide(a_0, b_1)), -2_Int8), -3_Int8) ASC
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Result sort description: multiply(plus(a_0, b_1), c_2) ASC, intDiv(intDiv(sin(divide(a_0, b_1)), -2_Int8), -3_Int8) ASC
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-- Aliases
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select * from (select *, a + b as x from tab) order by x * c;
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0 0 0 0 0
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0 0 0 0 0
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1 1 1 1 2
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1 1 1 1 2
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2 2 2 2 4
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2 2 2 2 4
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3 3 3 3 6
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3 3 3 3 6
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4 4 4 4 8
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4 4 4 4 8
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select * from (explain plan actions = 1 select * from (select *, a + b as x from tab) order by x * c) where explain like '%sort description%';
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Prefix sort description: multiply(x_4, c_2) ASC
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Result sort description: multiply(x_4, c_2) ASC
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select * from (select *, a + b as x, a / b as y from tab) order by x * c, sin(y);
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0 0 0 0 0 nan
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0 0 0 0 0 nan
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1 1 1 1 2 1
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1 1 1 1 2 1
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2 2 2 2 4 1
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2 2 2 2 4 1
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3 3 3 3 6 1
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3 3 3 3 6 1
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4 4 4 4 8 1
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4 4 4 4 8 1
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select * from (explain plan actions = 1 select * from (select *, a + b as x, a / b as y from tab) order by x * c, sin(y)) where explain like '%sort description%';
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Prefix sort description: multiply(x_4, c_2) ASC, sin(y_5) ASC
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Result sort description: multiply(x_4, c_2) ASC, sin(y_5) ASC
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select * from (select *, a / b as y from (select *, a + b as x from tab)) order by x * c, sin(y);
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0 0 0 0 0 nan
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0 0 0 0 0 nan
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1 1 1 1 2 1
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1 1 1 1 2 1
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2 2 2 2 4 1
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2 2 2 2 4 1
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3 3 3 3 6 1
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3 3 3 3 6 1
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4 4 4 4 8 1
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4 4 4 4 8 1
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select * from (explain plan actions = 1 select * from (select *, a / b as y from (select *, a + b as x from tab)) order by x * c, sin(y)) where explain like '%sort description%';
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Prefix sort description: multiply(x_4, c_2) ASC, sin(y_5) ASC
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Result sort description: multiply(x_4, c_2) ASC, sin(y_5) ASC
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-- { echoOn }
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select * from tab2 order by toTimeZone(toTimezone(x, 'UTC'), 'CET'), intDiv(intDiv(y, -2), -3);
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2020-02-02 00:00:00 0 0
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2020-02-02 00:00:00 0 0
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2020-02-03 00:00:00 1 1
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2020-02-03 00:00:00 1 1
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2020-02-04 00:00:00 2 2
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2020-02-04 00:00:00 2 2
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2020-02-05 00:00:00 3 3
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2020-02-05 00:00:00 3 3
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select * from (explain plan actions = 1 select * from tab2 order by toTimeZone(toTimezone(x, 'UTC'), 'CET'), intDiv(intDiv(y, -2), -3)) where explain like '%sort description%';
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Prefix sort description: toTimezone(toTimezone(x_0, \'UTC\'_String), \'CET\'_String) ASC, intDiv(intDiv(y_1, -2_Int8), -3_Int8) ASC
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Result sort description: toTimezone(toTimezone(x_0, \'UTC\'_String), \'CET\'_String) ASC, intDiv(intDiv(y_1, -2_Int8), -3_Int8) ASC
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select * from tab2 order by toStartOfDay(x), intDiv(intDiv(y, -2), -3);
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2020-02-02 00:00:00 0 0
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2020-02-02 00:00:00 0 0
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2020-02-03 00:00:00 1 1
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2020-02-03 00:00:00 1 1
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2020-02-04 00:00:00 2 2
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2020-02-04 00:00:00 2 2
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2020-02-05 00:00:00 3 3
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2020-02-05 00:00:00 3 3
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select * from (explain plan actions = 1 select * from tab2 order by toStartOfDay(x), intDiv(intDiv(y, -2), -3)) where explain like '%sort description%';
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Prefix sort description: toStartOfDay(x_0) ASC
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Result sort description: toStartOfDay(x_0) ASC, intDiv(intDiv(y_1, -2_Int8), -3_Int8) ASC
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-- select * from tab2 where toTimezone(x, 'CET') = '2020-02-03 01:00:00' order by intDiv(intDiv(y, -2), -3);
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select * from (explain plan actions = 1 select * from tab2 where toTimezone(x, 'CET') = '2020-02-03 01:00:00' order by intDiv(intDiv(y, -2), -3)) where explain like '%sort description%';
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Prefix sort description: intDiv(intDiv(y_1, -2_Int8), -3_Int8) ASC
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Result sort description: intDiv(intDiv(y_1, -2_Int8), -3_Int8) ASC
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-- { echoOn }
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-- Union (not fully supported)
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select * from (select * from tab union all select * from tab3) order by (a + b) * c, sin(a / b);
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0 0 0 0
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0 0 0 0
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0 0 0 0
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0 0 0 0
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1 1 1 1
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1 1 1 1
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1 1 1 1
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1 1 1 1
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2 2 2 2
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2 2 2 2
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2 2 2 2
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2 2 2 2
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3 3 3 3
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3 3 3 3
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3 3 3 3
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3 3 3 3
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4 4 4 4
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4 4 4 4
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4 4 4 4
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4 4 4 4
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select * from (explain plan actions = 1 select * from (select * from tab union all select * from tab3) order by (a + b) * c, sin(a / b)) where explain like '%sort description%' or explain like '%ReadType%';
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Prefix sort description: multiply(plus(a_0, b_1), c_2) ASC, sin(divide(a_0, b_1)) ASC
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Result sort description: multiply(plus(a_0, b_1), c_2) ASC, sin(divide(a_0, b_1)) ASC
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ReadType: InOrder
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ReadType: InOrder
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select * from (select * from tab where (a + b) * c = 8 union all select * from tab3 where (a + b) * c = 18) order by sin(a / b);
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2 2 2 2
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2 2 2 2
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3 3 3 3
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3 3 3 3
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select * from (explain plan actions = 1 select * from (select * from tab where (a + b) * c = 8 union all select * from tab3 where (a + b) * c = 18) order by sin(a / b)) where explain like '%sort description%' or explain like '%ReadType%';
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Prefix sort description: sin(divide(a_0, b_1)) ASC
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Result sort description: sin(divide(a_0, b_1)) ASC
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ReadType: InOrder
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ReadType: InOrder
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select * from (select * from tab where (a + b) * c = 8 union all select * from tab4) order by sin(a / b);
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2 2 2 2
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2 2 2 2
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1 1 1 1
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2 2 2 2
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3 3 3 3
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4 4 4 4
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1 1 1 1
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2 2 2 2
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3 3 3 3
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4 4 4 4
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0 0 0 0
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0 0 0 0
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select * from (explain plan actions = 1 select * from (select * from tab where (a + b) * c = 8 union all select * from tab4) order by sin(a / b)) where explain like '%sort description%' or explain like '%ReadType%';
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Prefix sort description: sin(divide(a_0, b_1)) ASC
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Result sort description: sin(divide(a_0, b_1)) ASC
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ReadType: InOrder
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ReadType: InOrder
|
||||
select * from (select * from tab union all select * from tab5) order by (a + b) * c;
|
||||
0 0 0 0
|
||||
0 0 0 0
|
||||
0 0 0 0
|
||||
0 0 0 0
|
||||
1 1 1 1
|
||||
1 1 1 1
|
||||
1 1 1 1
|
||||
1 1 1 1
|
||||
2 2 2 2
|
||||
2 2 2 2
|
||||
2 2 2 2
|
||||
2 2 2 2
|
||||
3 3 3 3
|
||||
3 3 3 3
|
||||
3 3 3 3
|
||||
3 3 3 3
|
||||
4 4 4 4
|
||||
4 4 4 4
|
||||
4 4 4 4
|
||||
4 4 4 4
|
||||
select * from (explain plan actions = 1 select * from (select * from tab union all select * from tab5) order by (a + b) * c) where explain like '%sort description%' or explain like '%ReadType%';
|
||||
Prefix sort description: multiply(plus(a_0, b_1), c_2) ASC
|
||||
Result sort description: multiply(plus(a_0, b_1), c_2) ASC
|
||||
ReadType: InOrder
|
||||
ReadType: InOrder
|
||||
select * from (select * from tab union all select * from tab5) order by (a + b) * c, sin(a / b);
|
||||
0 0 0 0
|
||||
0 0 0 0
|
||||
0 0 0 0
|
||||
0 0 0 0
|
||||
1 1 1 1
|
||||
1 1 1 1
|
||||
1 1 1 1
|
||||
1 1 1 1
|
||||
2 2 2 2
|
||||
2 2 2 2
|
||||
2 2 2 2
|
||||
2 2 2 2
|
||||
3 3 3 3
|
||||
3 3 3 3
|
||||
3 3 3 3
|
||||
3 3 3 3
|
||||
4 4 4 4
|
||||
4 4 4 4
|
||||
4 4 4 4
|
||||
4 4 4 4
|
||||
select * from (explain plan actions = 1 select * from (select * from tab union all select * from tab5) order by (a + b) * c, sin(a / b)) where explain like '%sort description%' or explain like '%ReadType%';
|
||||
Prefix sort description: multiply(plus(a_0, b_1), c_2) ASC, sin(divide(a_0, b_1)) ASC
|
||||
Result sort description: multiply(plus(a_0, b_1), c_2) ASC, sin(divide(a_0, b_1)) ASC
|
||||
ReadType: InOrder
|
||||
Prefix sort description: multiply(plus(a_0, b_1), c_2) ASC
|
||||
Result sort description: multiply(plus(a_0, b_1), c_2) ASC, sin(divide(a_0, b_1)) ASC
|
||||
ReadType: InOrder
|
||||
-- Union with limit
|
||||
select * from (select * from tab union all select * from tab5) order by (a + b) * c, sin(a / b) limit 3;
|
||||
0 0 0 0
|
||||
0 0 0 0
|
||||
0 0 0 0
|
||||
select * from (explain plan actions = 1 select * from (select * from tab union all select * from tab5) order by (a + b) * c, sin(a / b) limit 3) where explain ilike '%sort description%' or explain like '%ReadType%' or explain like '%Limit%';
|
||||
Limit (preliminary LIMIT (without OFFSET))
|
||||
Limit 3
|
||||
Prefix sort description: multiply(plus(a_0, b_1), c_2) ASC, sin(divide(a_0, b_1)) ASC
|
||||
Result sort description: multiply(plus(a_0, b_1), c_2) ASC, sin(divide(a_0, b_1)) ASC
|
||||
Limit 3
|
||||
ReadType: InOrder
|
||||
Prefix sort description: multiply(plus(a_0, b_1), c_2) ASC
|
||||
Result sort description: multiply(plus(a_0, b_1), c_2) ASC, sin(divide(a_0, b_1)) ASC
|
||||
ReadType: InOrder
|
||||
-- In this example, we read-in-order from tab up to ((a + b) * c, sin(a / b)) and from tab5 up to ((a + b) * c).
|
||||
-- In case of tab5, there would be two finish sorting transforms: ((a + b) * c) -> ((a + b) * c, sin(a / b)) -> ((a + b) * c, sin(a / b), d).
|
||||
-- It's important that ((a + b) * c) -> ((a + b) * c does not have LIMIT. We can add LIMIT WITH TIES later, when sorting alog support it.
|
||||
-- In case of tab4, we do full sorting by ((a + b) * c, sin(a / b), d) with LIMIT. We can replace it to sorting by ((a + b) * c, sin(a / b)) and LIMIT WITH TIES, when sorting alog support it.
|
||||
select * from (select * from tab union all select * from tab5 union all select * from tab4) order by (a + b) * c, sin(a / b), d limit 3;
|
||||
0 0 0 0
|
||||
0 0 0 0
|
||||
0 0 0 0
|
||||
select * from (explain plan actions = 1 select * from (select * from tab union all select * from tab5 union all select * from tab4) order by (a + b) * c, sin(a / b), d limit 3) where explain ilike '%sort description%' or explain like '%ReadType%' or explain like '%Limit%';
|
||||
Limit (preliminary LIMIT (without OFFSET))
|
||||
Limit 3
|
||||
Prefix sort description: multiply(plus(a_0, b_1), c_2) ASC, sin(divide(a_0, b_1)) ASC
|
||||
Result sort description: multiply(plus(a_0, b_1), c_2) ASC, sin(divide(a_0, b_1)) ASC, d_3 ASC
|
||||
Limit 3
|
||||
ReadType: InOrder
|
||||
Prefix sort description: multiply(plus(a_0, b_1), c_2) ASC
|
||||
Result sort description: multiply(plus(a_0, b_1), c_2) ASC, sin(divide(a_0, b_1)) ASC
|
||||
ReadType: InOrder
|
||||
Sort description: multiply(plus(a_0, b_1), c_2) ASC, sin(divide(a_0, b_1)) ASC, d_3 ASC
|
||||
Limit 3
|
||||
ReadType: Default
|
||||
drop table if exists tab;
|
||||
drop table if exists tab2;
|
||||
drop table if exists tab3;
|
||||
drop table if exists tab4;
|
||||
drop table if exists tab5;
|
||||
@ -0,0 +1,156 @@
|
||||
SET optimize_read_in_order = 1, query_plan_read_in_order = 1, allow_experimental_analyzer = 1;
|
||||
|
||||
drop table if exists tab;
|
||||
drop table if exists tab2;
|
||||
drop table if exists tab3;
|
||||
drop table if exists tab4;
|
||||
drop table if exists tab5;
|
||||
|
||||
create table tab (a UInt32, b UInt32, c UInt32, d UInt32) engine = MergeTree order by ((a + b) * c, sin(a / b));
|
||||
insert into tab select number, number, number, number from numbers(5);
|
||||
insert into tab select number, number, number, number from numbers(5);
|
||||
|
||||
-- { echoOn }
|
||||
|
||||
-- Exact match, single key
|
||||
select * from tab order by (a + b) * c;
|
||||
select * from (explain plan actions = 1 select * from tab order by (a + b) * c) where explain like '%sort description%';
|
||||
|
||||
select * from tab order by (a + b) * c desc;
|
||||
select * from (explain plan actions = 1 select * from tab order by (a + b) * c desc) where explain like '%sort description%';
|
||||
|
||||
-- Exact match, full key
|
||||
select * from tab order by (a + b) * c, sin(a / b);
|
||||
select * from (explain plan actions = 1 select * from tab order by (a + b) * c, sin(a / b)) where explain like '%sort description%';
|
||||
|
||||
select * from tab order by (a + b) * c desc, sin(a / b) desc;
|
||||
select * from (explain plan actions = 1 select * from tab order by (a + b) * c desc, sin(a / b) desc) where explain like '%sort description%';
|
||||
|
||||
-- Exact match, mixed direction
|
||||
select * from tab order by (a + b) * c desc, sin(a / b);
|
||||
select * from (explain plan actions = 1 select * from tab order by (a + b) * c desc, sin(a / b)) where explain like '%sort description%';
|
||||
|
||||
select * from tab order by (a + b) * c, sin(a / b) desc;
|
||||
select * from (explain plan actions = 1 select * from tab order by (a + b) * c, sin(a / b) desc) where explain like '%sort description%';
|
||||
|
||||
-- Wrong order, full sort
|
||||
select * from tab order by sin(a / b), (a + b) * c;
|
||||
select * from (explain plan actions = 1 select * from tab order by sin(a / b), (a + b) * c) where explain ilike '%sort description%';
|
||||
|
||||
-- Fixed point
|
||||
select * from tab where (a + b) * c = 8 order by sin(a / b);
|
||||
select * from (explain plan actions = 1 select * from tab where (a + b) * c = 8 order by sin(a / b)) where explain ilike '%sort description%';
|
||||
|
||||
select * from tab where d + 1 = 2 order by (d + 1) * 4, (a + b) * c;
|
||||
select * from (explain plan actions = 1 select * from tab where d + 1 = 2 order by (d + 1) * 4, (a + b) * c) where explain ilike '%sort description%';
|
||||
|
||||
select * from tab where d + 1 = 3 and (a + b) = 4 and c = 2 order by (d + 1) * 4, sin(a / b);
|
||||
select * from (explain plan actions = 1 select * from tab where d + 1 = 3 and (a + b) = 4 and c = 2 order by (d + 1) * 4, sin(a / b)) where explain ilike '%sort description%';
|
||||
|
||||
-- Wrong order with fixed point
|
||||
select * from tab where (a + b) * c = 8 order by sin(b / a);
|
||||
select * from (explain plan actions = 1 select * from tab where (a + b) * c = 8 order by sin(b / a)) where explain ilike '%sort description%';
|
||||
|
||||
-- Monotonicity
|
||||
select * from tab order by intDiv((a + b) * c, 2);
|
||||
select * from (explain plan actions = 1 select * from tab order by intDiv((a + b) * c, 2)) where explain like '%sort description%';
|
||||
|
||||
select * from tab order by intDiv((a + b) * c, 2), sin(a / b);
|
||||
select * from (explain plan actions = 1 select * from tab order by intDiv((a + b) * c, 2), sin(a / b)) where explain like '%sort description%';
|
||||
|
||||
-- select * from tab order by (a + b) * c, intDiv(sin(a / b), 2);
|
||||
select * from (explain plan actions = 1 select * from tab order by (a + b) * c, intDiv(sin(a / b), 2)) where explain like '%sort description%';
|
||||
|
||||
-- select * from tab order by (a + b) * c desc , intDiv(sin(a / b), 2);
|
||||
select * from (explain plan actions = 1 select * from tab order by (a + b) * c desc , intDiv(sin(a / b), 2)) where explain like '%sort description%';
|
||||
|
||||
-- select * from tab order by (a + b) * c, intDiv(sin(a / b), 2) desc;
|
||||
select * from (explain plan actions = 1 select * from tab order by (a + b) * c, intDiv(sin(a / b), 2) desc) where explain like '%sort description%';
|
||||
|
||||
-- select * from tab order by (a + b) * c desc, intDiv(sin(a / b), 2) desc;
|
||||
select * from (explain plan actions = 1 select * from tab order by (a + b) * c desc, intDiv(sin(a / b), 2) desc) where explain like '%sort description%';
|
||||
|
||||
-- select * from tab order by (a + b) * c desc, intDiv(sin(a / b), -2);
|
||||
select * from (explain plan actions = 1 select * from tab order by (a + b) * c desc, intDiv(sin(a / b), -2)) where explain like '%sort description%';
|
||||
|
||||
-- select * from tab order by (a + b) * c desc, intDiv(intDiv(sin(a / b), -2), -3);
|
||||
select * from (explain plan actions = 1 select * from tab order by (a + b) * c desc, intDiv(intDiv(sin(a / b), -2), -3)) where explain like '%sort description%';
|
||||
|
||||
-- select * from tab order by (a + b) * c, intDiv(intDiv(sin(a / b), -2), -3);
|
||||
select * from (explain plan actions = 1 select * from tab order by (a + b) * c, intDiv(intDiv(sin(a / b), -2), -3)) where explain like '%sort description%';
|
||||
|
||||
-- Aliases
|
||||
select * from (select *, a + b as x from tab) order by x * c;
|
||||
select * from (explain plan actions = 1 select * from (select *, a + b as x from tab) order by x * c) where explain like '%sort description%';
|
||||
|
||||
select * from (select *, a + b as x, a / b as y from tab) order by x * c, sin(y);
|
||||
select * from (explain plan actions = 1 select * from (select *, a + b as x, a / b as y from tab) order by x * c, sin(y)) where explain like '%sort description%';
|
||||
|
||||
select * from (select *, a / b as y from (select *, a + b as x from tab)) order by x * c, sin(y);
|
||||
select * from (explain plan actions = 1 select * from (select *, a / b as y from (select *, a + b as x from tab)) order by x * c, sin(y)) where explain like '%sort description%';
|
||||
|
||||
-- { echoOff }
|
||||
|
||||
create table tab2 (x DateTime, y UInt32, z UInt32) engine = MergeTree order by (x, y);
|
||||
insert into tab2 select toDate('2020-02-02') + number, number, number from numbers(4);
|
||||
insert into tab2 select toDate('2020-02-02') + number, number, number from numbers(4);
|
||||
|
||||
-- { echoOn }
|
||||
|
||||
select * from tab2 order by toTimeZone(toTimezone(x, 'UTC'), 'CET'), intDiv(intDiv(y, -2), -3);
|
||||
select * from (explain plan actions = 1 select * from tab2 order by toTimeZone(toTimezone(x, 'UTC'), 'CET'), intDiv(intDiv(y, -2), -3)) where explain like '%sort description%';
|
||||
|
||||
select * from tab2 order by toStartOfDay(x), intDiv(intDiv(y, -2), -3);
|
||||
select * from (explain plan actions = 1 select * from tab2 order by toStartOfDay(x), intDiv(intDiv(y, -2), -3)) where explain like '%sort description%';
|
||||
|
||||
-- select * from tab2 where toTimezone(x, 'CET') = '2020-02-03 01:00:00' order by intDiv(intDiv(y, -2), -3);
|
||||
select * from (explain plan actions = 1 select * from tab2 where toTimezone(x, 'CET') = '2020-02-03 01:00:00' order by intDiv(intDiv(y, -2), -3)) where explain like '%sort description%';
|
||||
|
||||
-- { echoOff }
|
||||
|
||||
create table tab3 (a UInt32, b UInt32, c UInt32, d UInt32) engine = MergeTree order by ((a + b) * c, sin(a / b));
|
||||
insert into tab3 select number, number, number, number from numbers(5);
|
||||
insert into tab3 select number, number, number, number from numbers(5);
|
||||
|
||||
create table tab4 (a UInt32, b UInt32, c UInt32, d UInt32) engine = MergeTree order by sin(a / b);
|
||||
insert into tab4 select number, number, number, number from numbers(5);
|
||||
insert into tab4 select number, number, number, number from numbers(5);
|
||||
|
||||
create table tab5 (a UInt32, b UInt32, c UInt32, d UInt32) engine = MergeTree order by (a + b) * c;
|
||||
insert into tab5 select number, number, number, number from numbers(5);
|
||||
insert into tab5 select number, number, number, number from numbers(5);
|
||||
|
||||
-- { echoOn }
|
||||
|
||||
-- Union (not fully supported)
|
||||
select * from (select * from tab union all select * from tab3) order by (a + b) * c, sin(a / b);
|
||||
select * from (explain plan actions = 1 select * from (select * from tab union all select * from tab3) order by (a + b) * c, sin(a / b)) where explain like '%sort description%' or explain like '%ReadType%';
|
||||
|
||||
select * from (select * from tab where (a + b) * c = 8 union all select * from tab3 where (a + b) * c = 18) order by sin(a / b);
|
||||
select * from (explain plan actions = 1 select * from (select * from tab where (a + b) * c = 8 union all select * from tab3 where (a + b) * c = 18) order by sin(a / b)) where explain like '%sort description%' or explain like '%ReadType%';
|
||||
|
||||
select * from (select * from tab where (a + b) * c = 8 union all select * from tab4) order by sin(a / b);
|
||||
select * from (explain plan actions = 1 select * from (select * from tab where (a + b) * c = 8 union all select * from tab4) order by sin(a / b)) where explain like '%sort description%' or explain like '%ReadType%';
|
||||
|
||||
select * from (select * from tab union all select * from tab5) order by (a + b) * c;
|
||||
select * from (explain plan actions = 1 select * from (select * from tab union all select * from tab5) order by (a + b) * c) where explain like '%sort description%' or explain like '%ReadType%';
|
||||
|
||||
select * from (select * from tab union all select * from tab5) order by (a + b) * c, sin(a / b);
|
||||
select * from (explain plan actions = 1 select * from (select * from tab union all select * from tab5) order by (a + b) * c, sin(a / b)) where explain like '%sort description%' or explain like '%ReadType%';
|
||||
|
||||
-- Union with limit
|
||||
select * from (select * from tab union all select * from tab5) order by (a + b) * c, sin(a / b) limit 3;
|
||||
select * from (explain plan actions = 1 select * from (select * from tab union all select * from tab5) order by (a + b) * c, sin(a / b) limit 3) where explain ilike '%sort description%' or explain like '%ReadType%' or explain like '%Limit%';
|
||||
|
||||
-- In this example, we read-in-order from tab up to ((a + b) * c, sin(a / b)) and from tab5 up to ((a + b) * c).
|
||||
-- In case of tab5, there would be two finish sorting transforms: ((a + b) * c) -> ((a + b) * c, sin(a / b)) -> ((a + b) * c, sin(a / b), d).
|
||||
-- It's important that ((a + b) * c) -> ((a + b) * c does not have LIMIT. We can add LIMIT WITH TIES later, when sorting alog support it.
|
||||
-- In case of tab4, we do full sorting by ((a + b) * c, sin(a / b), d) with LIMIT. We can replace it to sorting by ((a + b) * c, sin(a / b)) and LIMIT WITH TIES, when sorting alog support it.
|
||||
select * from (select * from tab union all select * from tab5 union all select * from tab4) order by (a + b) * c, sin(a / b), d limit 3;
|
||||
select * from (explain plan actions = 1 select * from (select * from tab union all select * from tab5 union all select * from tab4) order by (a + b) * c, sin(a / b), d limit 3) where explain ilike '%sort description%' or explain like '%ReadType%' or explain like '%Limit%';
|
||||
|
||||
drop table if exists tab;
|
||||
drop table if exists tab2;
|
||||
drop table if exists tab3;
|
||||
drop table if exists tab4;
|
||||
drop table if exists tab5;
|
||||
Loading…
Reference in New Issue
Block a user