mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-05 14:02:21 +00:00
21 lines
712 B
MySQL
21 lines
712 B
MySQL
|
DROP TABLE IF EXISTS t_skip_index_in;
|
||
|
|
||
|
CREATE TABLE t_skip_index_in
|
||
|
(
|
||
|
a String,
|
||
|
b String,
|
||
|
c String,
|
||
|
INDEX idx_c c TYPE bloom_filter GRANULARITY 1
|
||
|
)
|
||
|
ENGINE = MergeTree
|
||
|
ORDER BY (a, b);
|
||
|
|
||
|
INSERT INTO t_skip_index_in VALUES ('a', 'b', 'c');
|
||
|
|
||
|
-- This query checks that set is not being built if indexes are not used,
|
||
|
-- because with EXPLAIN the set will be built only for analysis of indexes.
|
||
|
EXPLAIN SELECT count() FROM t_skip_index_in WHERE c IN (SELECT throwIf(1)) SETTINGS use_skip_indexes = 0 FORMAT Null;
|
||
|
EXPLAIN SELECT count() FROM t_skip_index_in WHERE c IN (SELECT throwIf(1)) SETTINGS use_skip_indexes = 1; -- { serverError FUNCTION_THROW_IF_VALUE_IS_NON_ZERO }
|
||
|
|
||
|
DROP TABLE t_skip_index_in;
|