use database name that is the same as directory name on disk

[jennifersp]

As of Dolt version 1.27.0, we allow hyphens in database name and replace space characters with underscores and reduce multiple underscore characters side by side into single underscore character.

This PR resolves:

• Using the database name the same as directory name on disk allows round-trip to the database location on disk.

Note:

• A potential issue might arise when the directory name has trailing space characters. MySQL do not allow database name with trailing space characters such as mydb , whereas Dolt allows. This will cause failing import of dolt dump to MySQL.

[fulghum]

Looks good!

[github-actions]

@coffeegoddd DOLT

test_name	detail	row_cnt	sorted	mysql_time	sql_mult	cli_mult
batching	LOAD DATA	10000	1	0.05	0.6
batching	batch sql	10000	1	0.08	1.25
batching	by line sql	10000	1	0.08	1.25
blob	1 blob	200000	1	0.89	3.13	3.56
blob	2 blobs	200000	1	0.88	4.06	4.59
blob	no blob	200000	1	0.9	1.27	1.37
col type	datetime	200000	1	0.78	1.82	2.01
col type	varchar	200000	1	0.66	1.89	1.97
config width	2 cols	200000	1	0.76	1.29	1.37
config width	32 cols	200000	1	1.86	1.41	2.48
config width	8 cols	200000	1	0.96	1.29	1.56
pk type	float	200000	1	0.84	1.21	1.25
pk type	int	200000	1	0.77	1.32	1.32
pk type	varchar	200000	1	1.48	1.01	0.98
row count	1.6mm	1600000	1	5.58	1.5	1.54
row count	400k	400000	1	1.4	1.5	1.5
row count	800k	800000	1	2.77	1.48	1.53
secondary index	four index	200000	1	3.54	1.12	1.04
secondary index	no secondary	200000	1	0.86	1.33	1.44
secondary index	one index	200000	1	1.08	1.52	1.55
secondary index	two index	200000	1	1.91	1.29	1.17
sorting	shuffled 1mm	1000000	0	5.03	1.84	1.84
sorting	sorted 1mm	1000000	1	5.19	1.79	1.77

[github-actions]

@coffeegoddd DOLT

name	detail	mean_mult
dolt_blame_basic	system table	1.28
dolt_blame_commit_filter	system table	2.84
dolt_commit_ancestors_commit_filter	system table	0.9
dolt_commits_commit_filter	system table	0.9
dolt_diff_log_join_from_commit	system table	1.64
dolt_diff_log_join_to_commit	system table	1.6
dolt_diff_table_from_commit_filter	system table	1.13
dolt_diff_table_to_commit_filter	system table	1.11
dolt_diffs_commit_filter	system table	1.06
dolt_history_commit_filter	system table	1.23
dolt_log_commit_filter	system table	0.97

[github-actions]

@coffeegoddd DOLT

name	add_cnt	delete_cnt	update_cnt	latency
adds_only	60000	0	0	0.72
adds_updates_deletes	60000	60000	60000	3.92
deletes_only	0	60000	0	1.87
updates_only	0	0	60000	2.53