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sql: rearchitecture ALTER TABLE RENAME, add support for renaming cons…
…traints Release note (sql change): This patch changes RENAME COLUMN to become a "table command", which can be used alongside other table commands in a single ALTER TABLE statement. This makes it possible to e.g. atomically add a computed column based on an existing column, and rename the columns so that the computed column "replaces" the original column. Release note (sql change): CockroachDB now supports ALTER TABLE RENAME CONSTRAINT. Only indexes that are not depended on by views can be renamed.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,3 +1,3 @@ | ||
| alter_onetable_stmt ::= | ||
| 'ALTER' 'TABLE' table_name ( ( ( 'ADD' ( column_name typename col_qual_list ) | 'ADD' 'IF' 'NOT' 'EXISTS' ( column_name typename col_qual_list ) | 'ADD' 'COLUMN' ( column_name typename col_qual_list ) | 'ADD' 'COLUMN' 'IF' 'NOT' 'EXISTS' ( column_name typename col_qual_list ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'DEFAULT' a_expr | 'DROP' 'DEFAULT' ) | 'ALTER' ( 'COLUMN' | ) column_name 'DROP' 'NOT' 'NULL' | 'ALTER' ( 'COLUMN' | ) column_name 'DROP' 'STORED' | 'DROP' ( 'COLUMN' | ) 'IF' 'EXISTS' column_name ( 'CASCADE' | 'RESTRICT' | ) | 'DROP' ( 'COLUMN' | ) column_name ( 'CASCADE' | 'RESTRICT' | ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'DATA' | ) 'TYPE' typename ( 'COLLATE' collation_name | ) ( 'USING' a_expr | ) | 'ADD' ( 'CONSTRAINT' constraint_name constraint_elem | constraint_elem ) | 'VALIDATE' 'CONSTRAINT' constraint_name | 'DROP' 'CONSTRAINT' 'IF' 'EXISTS' constraint_name ( 'CASCADE' | 'RESTRICT' | ) | 'DROP' 'CONSTRAINT' constraint_name ( 'CASCADE' | 'RESTRICT' | ) | 'EXPERIMENTAL_AUDIT' 'SET' audit_mode | partition_by ) ) ( ( ',' ( 'ADD' ( column_name typename col_qual_list ) | 'ADD' 'IF' 'NOT' 'EXISTS' ( column_name typename col_qual_list ) | 'ADD' 'COLUMN' ( column_name typename col_qual_list ) | 'ADD' 'COLUMN' 'IF' 'NOT' 'EXISTS' ( column_name typename col_qual_list ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'DEFAULT' a_expr | 'DROP' 'DEFAULT' ) | 'ALTER' ( 'COLUMN' | ) column_name 'DROP' 'NOT' 'NULL' | 'ALTER' ( 'COLUMN' | ) column_name 'DROP' 'STORED' | 'DROP' ( 'COLUMN' | ) 'IF' 'EXISTS' column_name ( 'CASCADE' | 'RESTRICT' | ) | 'DROP' ( 'COLUMN' | ) column_name ( 'CASCADE' | 'RESTRICT' | ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'DATA' | ) 'TYPE' typename ( 'COLLATE' collation_name | ) ( 'USING' a_expr | ) | 'ADD' ( 'CONSTRAINT' constraint_name constraint_elem | constraint_elem ) | 'VALIDATE' 'CONSTRAINT' constraint_name | 'DROP' 'CONSTRAINT' 'IF' 'EXISTS' constraint_name ( 'CASCADE' | 'RESTRICT' | ) | 'DROP' 'CONSTRAINT' constraint_name ( 'CASCADE' | 'RESTRICT' | ) | 'EXPERIMENTAL_AUDIT' 'SET' audit_mode | partition_by ) ) )* ) | ||
| | 'ALTER' 'TABLE' 'IF' 'EXISTS' table_name ( ( ( 'ADD' ( column_name typename col_qual_list ) | 'ADD' 'IF' 'NOT' 'EXISTS' ( column_name typename col_qual_list ) | 'ADD' 'COLUMN' ( column_name typename col_qual_list ) | 'ADD' 'COLUMN' 'IF' 'NOT' 'EXISTS' ( column_name typename col_qual_list ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'DEFAULT' a_expr | 'DROP' 'DEFAULT' ) | 'ALTER' ( 'COLUMN' | ) column_name 'DROP' 'NOT' 'NULL' | 'ALTER' ( 'COLUMN' | ) column_name 'DROP' 'STORED' | 'DROP' ( 'COLUMN' | ) 'IF' 'EXISTS' column_name ( 'CASCADE' | 'RESTRICT' | ) | 'DROP' ( 'COLUMN' | ) column_name ( 'CASCADE' | 'RESTRICT' | ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'DATA' | ) 'TYPE' typename ( 'COLLATE' collation_name | ) ( 'USING' a_expr | ) | 'ADD' ( 'CONSTRAINT' constraint_name constraint_elem | constraint_elem ) | 'VALIDATE' 'CONSTRAINT' constraint_name | 'DROP' 'CONSTRAINT' 'IF' 'EXISTS' constraint_name ( 'CASCADE' | 'RESTRICT' | ) | 'DROP' 'CONSTRAINT' constraint_name ( 'CASCADE' | 'RESTRICT' | ) | 'EXPERIMENTAL_AUDIT' 'SET' audit_mode | partition_by ) ) ( ( ',' ( 'ADD' ( column_name typename col_qual_list ) | 'ADD' 'IF' 'NOT' 'EXISTS' ( column_name typename col_qual_list ) | 'ADD' 'COLUMN' ( column_name typename col_qual_list ) | 'ADD' 'COLUMN' 'IF' 'NOT' 'EXISTS' ( column_name typename col_qual_list ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'DEFAULT' a_expr | 'DROP' 'DEFAULT' ) | 'ALTER' ( 'COLUMN' | ) column_name 'DROP' 'NOT' 'NULL' | 'ALTER' ( 'COLUMN' | ) column_name 'DROP' 'STORED' | 'DROP' ( 'COLUMN' | ) 'IF' 'EXISTS' column_name ( 'CASCADE' | 'RESTRICT' | ) | 'DROP' ( 'COLUMN' | ) column_name ( 'CASCADE' | 'RESTRICT' | ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'DATA' | ) 'TYPE' typename ( 'COLLATE' collation_name | ) ( 'USING' a_expr | ) | 'ADD' ( 'CONSTRAINT' constraint_name constraint_elem | constraint_elem ) | 'VALIDATE' 'CONSTRAINT' constraint_name | 'DROP' 'CONSTRAINT' 'IF' 'EXISTS' constraint_name ( 'CASCADE' | 'RESTRICT' | ) | 'DROP' 'CONSTRAINT' constraint_name ( 'CASCADE' | 'RESTRICT' | ) | 'EXPERIMENTAL_AUDIT' 'SET' audit_mode | partition_by ) ) )* ) | ||
| 'ALTER' 'TABLE' table_name ( ( ( 'RENAME' ( 'COLUMN' | ) column_name 'TO' column_name | 'RENAME' 'CONSTRAINT' column_name 'TO' column_name | 'ADD' ( column_name typename col_qual_list ) | 'ADD' 'IF' 'NOT' 'EXISTS' ( column_name typename col_qual_list ) | 'ADD' 'COLUMN' ( column_name typename col_qual_list ) | 'ADD' 'COLUMN' 'IF' 'NOT' 'EXISTS' ( column_name typename col_qual_list ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'DEFAULT' a_expr | 'DROP' 'DEFAULT' ) | 'ALTER' ( 'COLUMN' | ) column_name 'DROP' 'NOT' 'NULL' | 'ALTER' ( 'COLUMN' | ) column_name 'DROP' 'STORED' | 'DROP' ( 'COLUMN' | ) 'IF' 'EXISTS' column_name ( 'CASCADE' | 'RESTRICT' | ) | 'DROP' ( 'COLUMN' | ) column_name ( 'CASCADE' | 'RESTRICT' | ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'DATA' | ) 'TYPE' typename ( 'COLLATE' collation_name | ) ( 'USING' a_expr | ) | 'ADD' ( 'CONSTRAINT' constraint_name constraint_elem | constraint_elem ) | 'VALIDATE' 'CONSTRAINT' constraint_name | 'DROP' 'CONSTRAINT' 'IF' 'EXISTS' constraint_name ( 'CASCADE' | 'RESTRICT' | ) | 'DROP' 'CONSTRAINT' constraint_name ( 'CASCADE' | 'RESTRICT' | ) | 'EXPERIMENTAL_AUDIT' 'SET' audit_mode | partition_by ) ) ( ( ',' ( 'RENAME' ( 'COLUMN' | ) column_name 'TO' column_name | 'RENAME' 'CONSTRAINT' column_name 'TO' column_name | 'ADD' ( column_name typename col_qual_list ) | 'ADD' 'IF' 'NOT' 'EXISTS' ( column_name typename col_qual_list ) | 'ADD' 'COLUMN' ( column_name typename col_qual_list ) | 'ADD' 'COLUMN' 'IF' 'NOT' 'EXISTS' ( column_name typename col_qual_list ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'DEFAULT' a_expr | 'DROP' 'DEFAULT' ) | 'ALTER' ( 'COLUMN' | ) column_name 'DROP' 'NOT' 'NULL' | 'ALTER' ( 'COLUMN' | ) column_name 'DROP' 'STORED' | 'DROP' ( 'COLUMN' | ) 'IF' 'EXISTS' column_name ( 'CASCADE' | 'RESTRICT' | ) | 'DROP' ( 'COLUMN' | ) column_name ( 'CASCADE' | 'RESTRICT' | ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'DATA' | ) 'TYPE' typename ( 'COLLATE' collation_name | ) ( 'USING' a_expr | ) | 'ADD' ( 'CONSTRAINT' constraint_name constraint_elem | constraint_elem ) | 'VALIDATE' 'CONSTRAINT' constraint_name | 'DROP' 'CONSTRAINT' 'IF' 'EXISTS' constraint_name ( 'CASCADE' | 'RESTRICT' | ) | 'DROP' 'CONSTRAINT' constraint_name ( 'CASCADE' | 'RESTRICT' | ) | 'EXPERIMENTAL_AUDIT' 'SET' audit_mode | partition_by ) ) )* ) | ||
| | 'ALTER' 'TABLE' 'IF' 'EXISTS' table_name ( ( ( 'RENAME' ( 'COLUMN' | ) column_name 'TO' column_name | 'RENAME' 'CONSTRAINT' column_name 'TO' column_name | 'ADD' ( column_name typename col_qual_list ) | 'ADD' 'IF' 'NOT' 'EXISTS' ( column_name typename col_qual_list ) | 'ADD' 'COLUMN' ( column_name typename col_qual_list ) | 'ADD' 'COLUMN' 'IF' 'NOT' 'EXISTS' ( column_name typename col_qual_list ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'DEFAULT' a_expr | 'DROP' 'DEFAULT' ) | 'ALTER' ( 'COLUMN' | ) column_name 'DROP' 'NOT' 'NULL' | 'ALTER' ( 'COLUMN' | ) column_name 'DROP' 'STORED' | 'DROP' ( 'COLUMN' | ) 'IF' 'EXISTS' column_name ( 'CASCADE' | 'RESTRICT' | ) | 'DROP' ( 'COLUMN' | ) column_name ( 'CASCADE' | 'RESTRICT' | ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'DATA' | ) 'TYPE' typename ( 'COLLATE' collation_name | ) ( 'USING' a_expr | ) | 'ADD' ( 'CONSTRAINT' constraint_name constraint_elem | constraint_elem ) | 'VALIDATE' 'CONSTRAINT' constraint_name | 'DROP' 'CONSTRAINT' 'IF' 'EXISTS' constraint_name ( 'CASCADE' | 'RESTRICT' | ) | 'DROP' 'CONSTRAINT' constraint_name ( 'CASCADE' | 'RESTRICT' | ) | 'EXPERIMENTAL_AUDIT' 'SET' audit_mode | partition_by ) ) ( ( ',' ( 'RENAME' ( 'COLUMN' | ) column_name 'TO' column_name | 'RENAME' 'CONSTRAINT' column_name 'TO' column_name | 'ADD' ( column_name typename col_qual_list ) | 'ADD' 'IF' 'NOT' 'EXISTS' ( column_name typename col_qual_list ) | 'ADD' 'COLUMN' ( column_name typename col_qual_list ) | 'ADD' 'COLUMN' 'IF' 'NOT' 'EXISTS' ( column_name typename col_qual_list ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'DEFAULT' a_expr | 'DROP' 'DEFAULT' ) | 'ALTER' ( 'COLUMN' | ) column_name 'DROP' 'NOT' 'NULL' | 'ALTER' ( 'COLUMN' | ) column_name 'DROP' 'STORED' | 'DROP' ( 'COLUMN' | ) 'IF' 'EXISTS' column_name ( 'CASCADE' | 'RESTRICT' | ) | 'DROP' ( 'COLUMN' | ) column_name ( 'CASCADE' | 'RESTRICT' | ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'DATA' | ) 'TYPE' typename ( 'COLLATE' collation_name | ) ( 'USING' a_expr | ) | 'ADD' ( 'CONSTRAINT' constraint_name constraint_elem | constraint_elem ) | 'VALIDATE' 'CONSTRAINT' constraint_name | 'DROP' 'CONSTRAINT' 'IF' 'EXISTS' constraint_name ( 'CASCADE' | 'RESTRICT' | ) | 'DROP' 'CONSTRAINT' constraint_name ( 'CASCADE' | 'RESTRICT' | ) | 'EXPERIMENTAL_AUDIT' 'SET' audit_mode | partition_by ) ) )* ) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,3 +1 @@ | ||
| alter_rename_table_stmt ::= | ||
| 'ALTER' 'TABLE' table_name 'RENAME' 'COLUMN' column_current_name 'TO' column_name | ||
| | 'ALTER' 'TABLE' 'IF' 'EXISTS' table_name 'RENAME' 'COLUMN' column_current_name 'TO' column_name |
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104 changes: 104 additions & 0 deletions
104
pkg/sql/logictest/testdata/logic_test/rename_constraint
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,104 @@ | ||
| # LogicTest: local local-opt local-parallel-stmts fakedist fakedist-opt fakedist-metadata | ||
|
|
||
| statement ok | ||
| CREATE TABLE t ( | ||
| x INT, y INT, | ||
| CONSTRAINT cu UNIQUE (x), | ||
| CONSTRAINT cc CHECK (x > 10), | ||
| CONSTRAINT cf FOREIGN KEY (x) REFERENCES t(x) | ||
| ) | ||
|
|
||
| query T | ||
| SELECT create_statement FROM [SHOW CREATE t] | ||
| ---- | ||
| CREATE TABLE t ( | ||
| x INT8 NULL, | ||
| y INT8 NULL, | ||
| CONSTRAINT cf FOREIGN KEY (x) REFERENCES t (x), | ||
| UNIQUE INDEX cu (x ASC), | ||
| FAMILY "primary" (x, y, rowid), | ||
| CONSTRAINT cc CHECK (x > 10) | ||
| ) | ||
|
|
||
| query TT | ||
| SELECT conname, contype FROM pg_catalog.pg_constraint ORDER BY conname | ||
| ---- | ||
| cc c | ||
| cf f | ||
| cu u | ||
|
|
||
| subtest rename_works | ||
|
|
||
| statement ok | ||
| ALTER TABLE t RENAME CONSTRAINT cu TO cu2, | ||
| RENAME CONSTRAINT cf TO cf2, | ||
| RENAME CONSTRAINT cc TO cc2 | ||
|
|
||
| query T | ||
| SELECT create_statement FROM [SHOW CREATE t] | ||
| ---- | ||
| CREATE TABLE t ( | ||
| x INT8 NULL, | ||
| y INT8 NULL, | ||
| CONSTRAINT cf2 FOREIGN KEY (x) REFERENCES t (x), | ||
| UNIQUE INDEX cu2 (x ASC), | ||
| FAMILY "primary" (x, y, rowid), | ||
| CONSTRAINT cc2 CHECK (x > 10) | ||
| ) | ||
|
|
||
| query TT | ||
| SELECT conname, contype FROM pg_catalog.pg_constraint ORDER BY conname | ||
| ---- | ||
| cc2 c | ||
| cf2 f | ||
| cu2 u | ||
|
|
||
|
|
||
| subtest duplicate_constraints | ||
|
|
||
| statement error duplicate constraint | ||
| ALTER TABLE t RENAME CONSTRAINT cu2 TO cf2 | ||
|
|
||
| statement error duplicate constraint | ||
| ALTER TABLE t RENAME CONSTRAINT cu2 TO cc2 | ||
|
|
||
| statement error duplicate constraint | ||
| ALTER TABLE t RENAME CONSTRAINT cf2 TO cu2 | ||
|
|
||
| statement error duplicate constraint | ||
| ALTER TABLE t RENAME CONSTRAINT cf2 TO cc2 | ||
|
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||
| statement error duplicate constraint | ||
| ALTER TABLE t RENAME CONSTRAINT cc2 TO cf2 | ||
|
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||
| statement error duplicate constraint | ||
| ALTER TABLE t RENAME CONSTRAINT cc2 TO cu2 | ||
|
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||
| subtest multiple_renames | ||
|
|
||
| statement ok | ||
| ALTER TABLE t RENAME CONSTRAINT cu2 TO cu3, | ||
| RENAME CONSTRAINT cc2 TO cc3, | ||
| RENAME CONSTRAINT cf2 TO cf3, | ||
| RENAME CONSTRAINT cu3 TO cu4, | ||
| RENAME CONSTRAINT cc3 TO cc4, | ||
| RENAME CONSTRAINT cf3 TO cf4 | ||
|
|
||
| query T | ||
| SELECT create_statement FROM [SHOW CREATE t] | ||
| ---- | ||
| CREATE TABLE t ( | ||
| x INT8 NULL, | ||
| y INT8 NULL, | ||
| CONSTRAINT cf4 FOREIGN KEY (x) REFERENCES t (x), | ||
| UNIQUE INDEX cu4 (x ASC), | ||
| FAMILY "primary" (x, y, rowid), | ||
| CONSTRAINT cc4 CHECK (x > 10) | ||
| ) | ||
|
|
||
| query TT | ||
| SELECT conname, contype FROM pg_catalog.pg_constraint ORDER BY conname | ||
| ---- | ||
| cc4 c | ||
| cf4 f | ||
| cu4 u |
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