add ability to track per-database applied hlc #1113
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Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook/mysql-5.6@b90a327 Originally Reviewed By: abhinav04sharma 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified.
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Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: #1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay fbshipit-source-id: e734faa
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Jul 29, 2020
Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay fbshipit-source-id: e734faa
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Aug 10, 2020
Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay fbshipit-source-id: e734faa
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Aug 10, 2020
Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay fbshipit-source-id: e734faa
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Sep 7, 2020
Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay fbshipit-source-id: e734faa
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Sep 9, 2020
Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay fbshipit-source-id: e734faa
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Oct 5, 2020
Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay fbshipit-source-id: e734faa
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Mar 11, 2021
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 (facebook@9baebec) Pulled By: bhatvinay fbshipit-source-id: 05c84141380
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Jul 26, 2021
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 (facebook@9baebec) Pulled By: bhatvinay fbshipit-source-id: 05c84141380
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Jul 28, 2021
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 (facebook@9baebec) Pulled By: bhatvinay fbshipit-source-id: 05c84141380
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Sep 2, 2021
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 (facebook@9baebec) Pulled By: bhatvinay fbshipit-source-id: 05c84141380
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Jan 17, 2022
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
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Jan 17, 2022
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
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Jan 18, 2022
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
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Jan 19, 2022
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
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Jan 20, 2022
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
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Jan 28, 2022
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
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Jan 28, 2022
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
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Mar 4, 2022
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
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Mar 4, 2022
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
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Mar 7, 2022
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
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Mar 11, 2022
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
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Mar 14, 2022
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
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Mar 14, 2022
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
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Mar 15, 2022
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
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Mar 15, 2022
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
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that referenced
this pull request
Jun 19, 2023
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
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to inikep/mysql-5.6
that referenced
this pull request
Jun 23, 2023
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
hermanlee
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to hermanlee/mysql-5.6
that referenced
this pull request
Oct 3, 2023
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
hermanlee
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to hermanlee/mysql-5.6
that referenced
this pull request
Oct 18, 2023
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
pushed a commit
to inikep/mysql-5.6
that referenced
this pull request
Apr 23, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
pushed a commit
to inikep/mysql-5.6
that referenced
this pull request
Apr 23, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
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to inikep/mysql-5.6
that referenced
this pull request
Apr 25, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
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to inikep/mysql-5.6
that referenced
this pull request
May 7, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
pushed a commit
to inikep/mysql-5.6
that referenced
this pull request
May 8, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
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to inikep/mysql-5.6
that referenced
this pull request
May 9, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
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to inikep/mysql-5.6
that referenced
this pull request
May 10, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
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that referenced
this pull request
May 13, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
pushed a commit
to inikep/mysql-5.6
that referenced
this pull request
May 15, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
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to inikep/mysql-5.6
that referenced
this pull request
May 16, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
pushed a commit
to inikep/mysql-5.6
that referenced
this pull request
May 17, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
pushed a commit
to inikep/mysql-5.6
that referenced
this pull request
May 17, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
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that referenced
this pull request
May 21, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
pushed a commit
to inikep/mysql-5.6
that referenced
this pull request
May 21, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
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that referenced
this pull request
May 30, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
pushed a commit
to inikep/mysql-5.6
that referenced
this pull request
Jun 19, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
pushed a commit
to inikep/mysql-5.6
that referenced
this pull request
Jun 19, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
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that referenced
this pull request
Jun 20, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
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that referenced
this pull request
Jun 21, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
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that referenced
this pull request
Jun 25, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
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that referenced
this pull request
Jul 2, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
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this pull request
Jul 19, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
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Jul 19, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
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Jul 31, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
pushed a commit
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that referenced
this pull request
Aug 2, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
inikep
pushed a commit
to inikep/mysql-5.6
that referenced
this pull request
Aug 6, 2024
…ok#1113) Summary: Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The feature is guarded by a new sysvar 'maintain_database_hlc'. The database name is extracted from all Table_map_log_event or Query_log_event in a trx and stored as a set in THD. This gives a list of all databases touched by this trx. After engine commit, the HLC of the trx is updated as 'applied_hlc' for every database touched by the trx. We track the per-database applied_hlc as a map (with the key as the database name and value as applied hlc) per instance. Per-database applied HLC is exposed as a information schema table 'database_applied_hlc'. On querying this table, we get the map of per-database applied hlc and populate the result set. Reference Patch: facebook@b90a327 8.0 porting notes: * 'sys_vars.maintain_database_hlc_basic' MTR test case expanded and unified. Pull Request resolved: facebook#1113 Reviewed By: luqun Differential Revision: D20131111 Pulled By: bhatvinay
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Summary:
Adds the ability in HybridLogicalClock to maintain per-database applied HLC. The
feature is guarded by a new sysvar 'maintain_database_hlc'.
The database name is extracted from all Table_map_log_event or Query_log_event
in a trx and stored as a set in THD. This gives a list of all databases touched
by this trx. After engine commit, the HLC of the trx is updated as
'applied_hlc' for every database touched by the trx.
We track the per-database applied_hlc as a map (with the key as the database
name and value as applied hlc) per instance.
Per-database applied HLC is exposed as a information schema table
'database_applied_hlc'. On querying this table, we get the map of per-database
applied hlc and populate the result set.
Reference Patch: b90a327
Originally Reviewed By: abhinav04sharma
8.0 porting notes:
unified.