ClickHouse/tests/queries/0_stateless/01764_collapsing_merge_adaptive_granularity.sql

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DROP TABLE IF EXISTS collapsing_table;
SET optimize_on_insert = 0;
CREATE TABLE collapsing_table
(
key UInt64,
value UInt64,
Sign Int8
)
ENGINE = CollapsingMergeTree(Sign)
ORDER BY key
SETTINGS
vertical_merge_algorithm_min_rows_to_activate=0,
vertical_merge_algorithm_min_columns_to_activate=0,
min_bytes_for_wide_part = 0;
INSERT INTO collapsing_table SELECT if(number == 8192, 8191, number), 1, if(number == 8192, +1, -1) FROM numbers(8193);
SELECT sum(Sign), count() from collapsing_table;
OPTIMIZE TABLE collapsing_table FINAL;
SELECT sum(Sign), count() from collapsing_table;
DROP TABLE IF EXISTS collapsing_table;
DROP TABLE IF EXISTS collapsing_suspicious_granularity;
CREATE TABLE collapsing_suspicious_granularity
(
key UInt64,
value UInt64,
Sign Int8
)
ENGINE = CollapsingMergeTree(Sign)
ORDER BY key
SETTINGS
vertical_merge_algorithm_min_rows_to_activate=0,
vertical_merge_algorithm_min_columns_to_activate=0,
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min_bytes_for_wide_part = 0,
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index_granularity = 1;
INSERT INTO collapsing_suspicious_granularity VALUES (1, 1, -1) (1, 1, 1);
SELECT sum(Sign), count() from collapsing_suspicious_granularity;
OPTIMIZE TABLE collapsing_suspicious_granularity FINAL;
SELECT sum(Sign), count() from collapsing_suspicious_granularity;
DROP TABLE IF EXISTS collapsing_suspicious_granularity;