2011-10-30 11:30:52 +00:00
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#pragma once
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2021-04-10 23:33:54 +00:00
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#include <Interpreters/Context_fwd.h>
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2011-10-30 11:30:52 +00:00
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namespace DB
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{
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2017-06-18 05:43:29 +00:00
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/// Load tables from system database. Only real tables like query_log, part_log.
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/// You should first load system database, then attach system tables that you need into it, then load other databases.
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2021-05-31 14:49:02 +00:00
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void loadMetadataSystem(ContextMutablePtr context);
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2017-06-18 05:43:29 +00:00
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2021-09-09 09:37:51 +00:00
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/// Load tables from databases and add them to context. Database 'system' and 'information_schema' is ignored.
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/// Use separate function to load system tables.
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2021-05-31 14:49:02 +00:00
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void loadMetadata(ContextMutablePtr context, const String & default_database_name = {});
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2011-10-30 11:30:52 +00:00
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2021-09-13 19:11:16 +00:00
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/// Background operations in system tables may slowdown loading of the rest tables,
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/// so we startup system tables after all databases are loaded.
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2021-09-01 19:42:49 +00:00
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void startupSystemTables();
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2022-08-05 19:41:02 +00:00
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/// Converts `system` database from Ordinary to Atomic (if needed)
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void maybeConvertSystemDatabase(ContextMutablePtr context);
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/// Converts all databases (except system) from Ordinary to Atomic if convert_ordinary_to_atomic flag exists
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void convertDatabasesEnginesIfNeed(ContextMutablePtr context);
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2022-06-23 19:38:43 +00:00
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2011-10-30 11:30:52 +00:00
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}
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