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sql: add syntax for experimental domiciling
This commit adds the PLACEMENT [RESTRICTED | DEFAULT] flag to CREATE DATABASE and adds the ALTER DATABASE PLACEMENT statement. These will be used to support #59756. Release note: None
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,3 +1,3 @@ | ||
| create_database_stmt ::= | ||
| 'CREATE' 'DATABASE' database_name ( 'WITH' | ) opt_template_clause ( 'ENCODING' ( '=' | ) encoding | ) opt_lc_collate_clause opt_lc_ctype_clause ( 'CONNECTION' 'LIMIT' ( '=' | ) limit | ) ( ( 'PRIMARY' 'REGION' ( '=' | ) region_name ) | ) ( ( 'REGIONS' ) ( '=' | ) region_name_list | ) ( ( 'SURVIVE' ( '=' | ) 'REGION' 'FAILURE' | 'SURVIVE' ( '=' | ) 'ZONE' 'FAILURE' ) | ) | ||
| | 'CREATE' 'DATABASE' 'IF' 'NOT' 'EXISTS' database_name ( 'WITH' | ) opt_template_clause ( 'ENCODING' ( '=' | ) encoding | ) opt_lc_collate_clause opt_lc_ctype_clause ( 'CONNECTION' 'LIMIT' ( '=' | ) limit | ) ( ( 'PRIMARY' 'REGION' ( '=' | ) region_name ) | ) ( ( 'REGIONS' ) ( '=' | ) region_name_list | ) ( ( 'SURVIVE' ( '=' | ) 'REGION' 'FAILURE' | 'SURVIVE' ( '=' | ) 'ZONE' 'FAILURE' ) | ) | ||
| 'CREATE' 'DATABASE' database_name ( 'WITH' | ) opt_template_clause ( 'ENCODING' ( '=' | ) encoding | ) opt_lc_collate_clause opt_lc_ctype_clause ( 'CONNECTION' 'LIMIT' ( '=' | ) limit | ) ( ( 'PRIMARY' 'REGION' ( '=' | ) region_name ) | ) ( ( 'REGIONS' ) ( '=' | ) region_name_list | ) ( ( 'SURVIVE' ( '=' | ) 'REGION' 'FAILURE' | 'SURVIVE' ( '=' | ) 'ZONE' 'FAILURE' ) | ) opt_placement_clause | ||
| | 'CREATE' 'DATABASE' 'IF' 'NOT' 'EXISTS' database_name ( 'WITH' | ) opt_template_clause ( 'ENCODING' ( '=' | ) encoding | ) opt_lc_collate_clause opt_lc_ctype_clause ( 'CONNECTION' 'LIMIT' ( '=' | ) limit | ) ( ( 'PRIMARY' 'REGION' ( '=' | ) region_name ) | ) ( ( 'REGIONS' ) ( '=' | ) region_name_list | ) ( ( 'SURVIVE' ( '=' | ) 'REGION' 'FAILURE' | 'SURVIVE' ( '=' | ) 'ZONE' 'FAILURE' ) | ) opt_placement_clause |
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| @@ -0,0 +1,41 @@ | ||
| // Copyright 2020 The Cockroach Authors. | ||
| // | ||
| // Use of this software is governed by the Business Source License | ||
| // included in the file licenses/BSL.txt. | ||
| // | ||
| // As of the Change Date specified in that file, in accordance with | ||
| // the Business Source License, use of this software will be governed | ||
| // by the Apache License, Version 2.0, included in the file | ||
| // licenses/APL.txt. | ||
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| package tree | ||
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| import "github.com/cockroachdb/errors" | ||
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| // DataPlacement represents the desired data placement strategy for a given | ||
| // database. | ||
| type DataPlacement uint32 | ||
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| const ( | ||
| // DataPlacementUnspecified indicates an unspecified placement policy. | ||
| // This will get translated to the default value when persisted. | ||
| DataPlacementUnspecified DataPlacement = iota | ||
| // DataPlacementDefault indicates specified default data placement policy, | ||
| DataPlacementDefault | ||
| // DataPlacementRestricted indicates the database will not use non-voters for | ||
| // REGIONAL BY [TABLE | ROW] tables. | ||
| DataPlacementRestricted | ||
| ) | ||
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| // Format implements the NodeFormatter interface. | ||
| func (node *DataPlacement) Format(ctx *FmtCtx) { | ||
| ctx.WriteString("PLACEMENT ") | ||
| switch *node { | ||
| case DataPlacementRestricted: | ||
| ctx.WriteString("RESTRICTED") | ||
| case DataPlacementDefault, DataPlacementUnspecified: | ||
| ctx.WriteString("DEFAULT") | ||
| default: | ||
| panic(errors.AssertionFailedf("unknown data placement strategy: %d", *node)) | ||
| } | ||
| } |