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TRUNCATE TABLE performance_schema.events_statements_summary_by_digest;
NULL
NULL
NULL
NULL
NULL NULL
NULL NULL
NULL NULL NULL 1 2 3 NULL NULL
NULL NULL NULL 1 2 3 NULL NULL
1 IS NULL
0
2 IS NOT NULL
1
1 IS NULL 2 IS NULL 3 IS NOT NULL 4 IS NOT NULL
0 0 1 1
SELECT SCHEMA_NAME, DIGEST_TEXT, COUNT_STAR
FROM performance_schema.events_statements_summary_by_digest;
SCHEMA_NAME DIGEST_TEXT COUNT_STAR
test TRUNCATE TABLE `performance_schema` . `events_statements_summary_by_digest` 1
test SELECT ? 1
test SELECT ? FROM DUAL 1
test SELECT ?, ... 2
test SELECT ? IS NULL 1
test SELECT ? IS NOT NULL 1
test SELECT ? IS NULL , ? IS NULL , ? IS NOT NULL , ? IS NOT NULL 1
test CREATE TABLE `foo` ( `a` INTEGER DEFAULT ? , `b` INTEGER NOT NULL DEFAULT ? , `c` INTEGER NOT NULL ) 1
test DROP TABLE `foo` 1
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