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SET @start_value = @@global.ROCKSDB_CREATE_CHECKPOINT;
SET @@global.ROCKSDB_CREATE_CHECKPOINT = 'TMP/abc';
SELECT @@global.ROCKSDB_CREATE_CHECKPOINT;
@@global.ROCKSDB_CREATE_CHECKPOINT
SET @@global.ROCKSDB_CREATE_CHECKPOINT = DEFAULT;
SET @@global.ROCKSDB_CREATE_CHECKPOINT = 'TMP/def';
SELECT @@global.ROCKSDB_CREATE_CHECKPOINT;
@@global.ROCKSDB_CREATE_CHECKPOINT
SET @@global.ROCKSDB_CREATE_CHECKPOINT = DEFAULT;
SET @@session.ROCKSDB_CREATE_CHECKPOINT = 444;
ERROR HY000: Variable 'rocksdb_create_checkpoint' is a GLOBAL variable and should be set with SET GLOBAL
SET @@global.ROCKSDB_CREATE_CHECKPOINT = @start_value;
ERROR HY000: Got error 4 'Invalid argument: invalid checkpoint directory name' from ROCKSDB
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