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sql: Allow Identity Column to Change Generation Type
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Informs: #110010

This change adds a new command, 'ALTER TABLE t
ALTER COLUMN c SET GENERATED ALWAYS' and 'ALTER
TABLE t ALTER COLUMN c SET GENERATED BY DEFAULT',
which changes the 'GeneratedAsIdentityType' of
that column's definition, respectively.

Release note (sql change): Identity columns can
have their IdentityType altered by running 'ALTER
TABLE t ALTER COLUMN c SET GENERATED ALWAYS' or
'ALTER TABLE t ALTER COLUMN c SET GENERATED BY DEFAULT'.
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@andrew-delph
andrew-delph committed Jan 30, 2024
1 parent ead4e9f commit 0e36b60
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Showing 20 changed files with 240 additions and 3 deletions.
4 changes: 4 additions & 0 deletions docs/generated/sql/bnf/alter_column.bnf
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Original file line number Diff line number Diff line change
Expand Up @@ -9,6 +9,8 @@ alter_onetable_stmt ::=
| 'ALTER' 'TABLE' table_name 'ALTER' column_name 'SET' ('NOT' | ) 'VISIBLE'
| 'ALTER' 'TABLE' table_name 'ALTER' 'COLUMN' column_name 'DROP' 'NOT' 'NULL'
| 'ALTER' 'TABLE' table_name 'ALTER' column_name 'DROP' 'NOT' 'NULL'
| 'ALTER' 'TABLE' table_name 'ALTER' 'COLUMN' column_name alter_identity_column_option
| 'ALTER' 'TABLE' table_name 'ALTER' column_name alter_identity_column_option
| 'ALTER' 'TABLE' table_name 'ALTER' 'COLUMN' column_name 'DROP' 'STORED'
| 'ALTER' 'TABLE' table_name 'ALTER' column_name 'DROP' 'STORED'
| 'ALTER' 'TABLE' table_name 'ALTER' 'COLUMN' column_name 'SET' 'NOT' 'NULL'
Expand Down Expand Up @@ -39,6 +41,8 @@ alter_onetable_stmt ::=
| 'ALTER' 'TABLE' 'IF' 'EXISTS' table_name 'ALTER' column_name 'SET' ('NOT' | ) 'VISIBLE'
| 'ALTER' 'TABLE' 'IF' 'EXISTS' table_name 'ALTER' 'COLUMN' column_name 'DROP' 'NOT' 'NULL'
| 'ALTER' 'TABLE' 'IF' 'EXISTS' table_name 'ALTER' column_name 'DROP' 'NOT' 'NULL'
| 'ALTER' 'TABLE' 'IF' 'EXISTS' table_name 'ALTER' 'COLUMN' column_name alter_identity_column_option
| 'ALTER' 'TABLE' 'IF' 'EXISTS' table_name 'ALTER' column_name alter_identity_column_option
| 'ALTER' 'TABLE' 'IF' 'EXISTS' table_name 'ALTER' 'COLUMN' column_name 'DROP' 'STORED'
| 'ALTER' 'TABLE' 'IF' 'EXISTS' table_name 'ALTER' column_name 'DROP' 'STORED'
| 'ALTER' 'TABLE' 'IF' 'EXISTS' table_name 'ALTER' 'COLUMN' column_name 'SET' 'NOT' 'NULL'
Expand Down
2 changes: 1 addition & 1 deletion docs/generated/sql/bnf/alter_table_cmds.bnf
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Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
alter_table_cmds ::=
( ( 'RENAME' ( 'COLUMN' | ) column_name 'TO' column_new_name | 'RENAME' 'CONSTRAINT' constraint_name 'TO' constraint_new_name | 'ADD' ( column_name typename ( ( ) ( ( col_qualification ) )* ) ) | 'ADD' 'IF' 'NOT' 'EXISTS' ( column_name typename ( ( ) ( ( col_qualification ) )* ) ) | 'ADD' 'COLUMN' ( column_name typename ( ( ) ( ( col_qualification ) )* ) ) | 'ADD' 'COLUMN' 'IF' 'NOT' 'EXISTS' ( column_name typename ( ( ) ( ( col_qualification ) )* ) ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'DEFAULT' a_expr | 'DROP' 'DEFAULT' ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'ON' 'UPDATE' a_expr | 'DROP' 'ON' 'UPDATE' ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'VISIBLE' | 'SET' 'NOT' 'VISIBLE' ) | 'ALTER' ( 'COLUMN' | ) column_name 'DROP' 'NOT' 'NULL' | 'ALTER' ( 'COLUMN' | ) column_name 'DROP' 'STORED' | 'ALTER' ( 'COLUMN' | ) column_name 'SET' 'NOT' 'NULL' | '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 ) ( 'NOT' 'VALID' | ) | 'ADD' 'CONSTRAINT' 'IF' 'NOT' 'EXISTS' constraint_name constraint_elem ( 'NOT' 'VALID' | ) | 'ALTER' 'PRIMARY' 'KEY' 'USING' 'COLUMNS' '(' index_params ')' ( 'USING' 'HASH' | ) ( 'WITH' '(' ( ( ( storage_parameter_key '=' value ) ) ( ( ',' ( storage_parameter_key '=' value ) ) )* ) ')' ) | 'VALIDATE' 'CONSTRAINT' constraint_name | 'DROP' 'CONSTRAINT' 'IF' 'EXISTS' constraint_name ( 'CASCADE' | 'RESTRICT' | ) | 'DROP' 'CONSTRAINT' constraint_name ( 'CASCADE' | 'RESTRICT' | ) | 'EXPERIMENTAL_AUDIT' 'SET' ( 'READ' 'WRITE' | 'OFF' ) | ( ( 'PARTITION' 'BY' ( 'LIST' '(' name_list ')' '(' list_partitions ')' | 'RANGE' '(' name_list ')' '(' range_partitions ')' | 'NOTHING' ) ) | 'PARTITION' 'ALL' 'BY' ( 'LIST' '(' name_list ')' '(' list_partitions ')' | 'RANGE' '(' name_list ')' '(' range_partitions ')' | 'NOTHING' ) ) | 'SET' '(' ( ( ( storage_parameter_key '=' value ) ) ( ( ',' ( storage_parameter_key '=' value ) ) )* ) ')' | 'RESET' '(' ( ( storage_parameter_key ) ( ( ',' storage_parameter_key ) )* ) ')' ) ) ( ( ',' ( 'RENAME' ( 'COLUMN' | ) column_name 'TO' column_new_name | 'RENAME' 'CONSTRAINT' constraint_name 'TO' constraint_new_name | 'ADD' ( column_name typename ( ( ) ( ( col_qualification ) )* ) ) | 'ADD' 'IF' 'NOT' 'EXISTS' ( column_name typename ( ( ) ( ( col_qualification ) )* ) ) | 'ADD' 'COLUMN' ( column_name typename ( ( ) ( ( col_qualification ) )* ) ) | 'ADD' 'COLUMN' 'IF' 'NOT' 'EXISTS' ( column_name typename ( ( ) ( ( col_qualification ) )* ) ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'DEFAULT' a_expr | 'DROP' 'DEFAULT' ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'ON' 'UPDATE' a_expr | 'DROP' 'ON' 'UPDATE' ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'VISIBLE' | 'SET' 'NOT' 'VISIBLE' ) | 'ALTER' ( 'COLUMN' | ) column_name 'DROP' 'NOT' 'NULL' | 'ALTER' ( 'COLUMN' | ) column_name 'DROP' 'STORED' | 'ALTER' ( 'COLUMN' | ) column_name 'SET' 'NOT' 'NULL' | '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 ) ( 'NOT' 'VALID' | ) | 'ADD' 'CONSTRAINT' 'IF' 'NOT' 'EXISTS' constraint_name constraint_elem ( 'NOT' 'VALID' | ) | 'ALTER' 'PRIMARY' 'KEY' 'USING' 'COLUMNS' '(' index_params ')' ( 'USING' 'HASH' | ) ( 'WITH' '(' ( ( ( storage_parameter_key '=' value ) ) ( ( ',' ( storage_parameter_key '=' value ) ) )* ) ')' ) | 'VALIDATE' 'CONSTRAINT' constraint_name | 'DROP' 'CONSTRAINT' 'IF' 'EXISTS' constraint_name ( 'CASCADE' | 'RESTRICT' | ) | 'DROP' 'CONSTRAINT' constraint_name ( 'CASCADE' | 'RESTRICT' | ) | 'EXPERIMENTAL_AUDIT' 'SET' ( 'READ' 'WRITE' | 'OFF' ) | ( ( 'PARTITION' 'BY' ( 'LIST' '(' name_list ')' '(' list_partitions ')' | 'RANGE' '(' name_list ')' '(' range_partitions ')' | 'NOTHING' ) ) | 'PARTITION' 'ALL' 'BY' ( 'LIST' '(' name_list ')' '(' list_partitions ')' | 'RANGE' '(' name_list ')' '(' range_partitions ')' | 'NOTHING' ) ) | 'SET' '(' ( ( ( storage_parameter_key '=' value ) ) ( ( ',' ( storage_parameter_key '=' value ) ) )* ) ')' | 'RESET' '(' ( ( storage_parameter_key ) ( ( ',' storage_parameter_key ) )* ) ')' ) ) )*
( ( 'RENAME' ( 'COLUMN' | ) column_name 'TO' column_new_name | 'RENAME' 'CONSTRAINT' constraint_name 'TO' constraint_new_name | 'ADD' ( column_name typename ( ( ) ( ( col_qualification ) )* ) ) | 'ADD' 'IF' 'NOT' 'EXISTS' ( column_name typename ( ( ) ( ( col_qualification ) )* ) ) | 'ADD' 'COLUMN' ( column_name typename ( ( ) ( ( col_qualification ) )* ) ) | 'ADD' 'COLUMN' 'IF' 'NOT' 'EXISTS' ( column_name typename ( ( ) ( ( col_qualification ) )* ) ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'DEFAULT' a_expr | 'DROP' 'DEFAULT' ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'ON' 'UPDATE' a_expr | 'DROP' 'ON' 'UPDATE' ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'VISIBLE' | 'SET' 'NOT' 'VISIBLE' ) | 'ALTER' ( 'COLUMN' | ) column_name 'DROP' 'NOT' 'NULL' | 'ALTER' ( 'COLUMN' | ) column_name alter_identity_column_option | 'ALTER' ( 'COLUMN' | ) column_name 'DROP' 'STORED' | 'ALTER' ( 'COLUMN' | ) column_name 'SET' 'NOT' 'NULL' | '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 ) ( 'NOT' 'VALID' | ) | 'ADD' 'CONSTRAINT' 'IF' 'NOT' 'EXISTS' constraint_name constraint_elem ( 'NOT' 'VALID' | ) | 'ALTER' 'PRIMARY' 'KEY' 'USING' 'COLUMNS' '(' index_params ')' ( 'USING' 'HASH' | ) ( 'WITH' '(' ( ( ( storage_parameter_key '=' value ) ) ( ( ',' ( storage_parameter_key '=' value ) ) )* ) ')' ) | 'VALIDATE' 'CONSTRAINT' constraint_name | 'DROP' 'CONSTRAINT' 'IF' 'EXISTS' constraint_name ( 'CASCADE' | 'RESTRICT' | ) | 'DROP' 'CONSTRAINT' constraint_name ( 'CASCADE' | 'RESTRICT' | ) | 'EXPERIMENTAL_AUDIT' 'SET' ( 'READ' 'WRITE' | 'OFF' ) | ( ( 'PARTITION' 'BY' ( 'LIST' '(' name_list ')' '(' list_partitions ')' | 'RANGE' '(' name_list ')' '(' range_partitions ')' | 'NOTHING' ) ) | 'PARTITION' 'ALL' 'BY' ( 'LIST' '(' name_list ')' '(' list_partitions ')' | 'RANGE' '(' name_list ')' '(' range_partitions ')' | 'NOTHING' ) ) | 'SET' '(' ( ( ( storage_parameter_key '=' value ) ) ( ( ',' ( storage_parameter_key '=' value ) ) )* ) ')' | 'RESET' '(' ( ( storage_parameter_key ) ( ( ',' storage_parameter_key ) )* ) ')' ) ) ( ( ',' ( 'RENAME' ( 'COLUMN' | ) column_name 'TO' column_new_name | 'RENAME' 'CONSTRAINT' constraint_name 'TO' constraint_new_name | 'ADD' ( column_name typename ( ( ) ( ( col_qualification ) )* ) ) | 'ADD' 'IF' 'NOT' 'EXISTS' ( column_name typename ( ( ) ( ( col_qualification ) )* ) ) | 'ADD' 'COLUMN' ( column_name typename ( ( ) ( ( col_qualification ) )* ) ) | 'ADD' 'COLUMN' 'IF' 'NOT' 'EXISTS' ( column_name typename ( ( ) ( ( col_qualification ) )* ) ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'DEFAULT' a_expr | 'DROP' 'DEFAULT' ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'ON' 'UPDATE' a_expr | 'DROP' 'ON' 'UPDATE' ) | 'ALTER' ( 'COLUMN' | ) column_name ( 'SET' 'VISIBLE' | 'SET' 'NOT' 'VISIBLE' ) | 'ALTER' ( 'COLUMN' | ) column_name 'DROP' 'NOT' 'NULL' | 'ALTER' ( 'COLUMN' | ) column_name alter_identity_column_option | 'ALTER' ( 'COLUMN' | ) column_name 'DROP' 'STORED' | 'ALTER' ( 'COLUMN' | ) column_name 'SET' 'NOT' 'NULL' | '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 ) ( 'NOT' 'VALID' | ) | 'ADD' 'CONSTRAINT' 'IF' 'NOT' 'EXISTS' constraint_name constraint_elem ( 'NOT' 'VALID' | ) | 'ALTER' 'PRIMARY' 'KEY' 'USING' 'COLUMNS' '(' index_params ')' ( 'USING' 'HASH' | ) ( 'WITH' '(' ( ( ( storage_parameter_key '=' value ) ) ( ( ',' ( storage_parameter_key '=' value ) ) )* ) ')' ) | 'VALIDATE' 'CONSTRAINT' constraint_name | 'DROP' 'CONSTRAINT' 'IF' 'EXISTS' constraint_name ( 'CASCADE' | 'RESTRICT' | ) | 'DROP' 'CONSTRAINT' constraint_name ( 'CASCADE' | 'RESTRICT' | ) | 'EXPERIMENTAL_AUDIT' 'SET' ( 'READ' 'WRITE' | 'OFF' ) | ( ( 'PARTITION' 'BY' ( 'LIST' '(' name_list ')' '(' list_partitions ')' | 'RANGE' '(' name_list ')' '(' range_partitions ')' | 'NOTHING' ) ) | 'PARTITION' 'ALL' 'BY' ( 'LIST' '(' name_list ')' '(' list_partitions ')' | 'RANGE' '(' name_list ')' '(' range_partitions ')' | 'NOTHING' ) ) | 'SET' '(' ( ( ( storage_parameter_key '=' value ) ) ( ( ',' ( storage_parameter_key '=' value ) ) )* ) ')' | 'RESET' '(' ( ( storage_parameter_key ) ( ( ',' storage_parameter_key ) )* ) ')' ) ) )*
4 changes: 2 additions & 2 deletions docs/generated/sql/bnf/alter_table_partition_by.bnf
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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 'PARTITION' 'ALL' 'BY' partition_by_inner ( ( ',' ( 'RENAME' opt_column column_name 'TO' column_name | 'RENAME' 'CONSTRAINT' column_name 'TO' column_name | 'ADD' column_table_def | 'ADD' 'IF' 'NOT' 'EXISTS' column_table_def | 'ADD' 'COLUMN' column_table_def | 'ADD' 'COLUMN' 'IF' 'NOT' 'EXISTS' column_table_def | 'ALTER' opt_column column_name alter_column_default | 'ALTER' opt_column column_name alter_column_on_update | 'ALTER' opt_column column_name alter_column_visible | 'ALTER' opt_column column_name 'DROP' 'NOT' 'NULL' | 'ALTER' opt_column column_name 'DROP' 'STORED' | 'ALTER' opt_column column_name 'SET' 'NOT' 'NULL' | 'DROP' opt_column 'IF' 'EXISTS' column_name opt_drop_behavior | 'DROP' opt_column column_name opt_drop_behavior | 'ALTER' opt_column column_name opt_set_data 'TYPE' typename opt_collate opt_alter_column_using | 'ADD' table_constraint opt_validate_behavior | 'ADD' 'CONSTRAINT' 'IF' 'NOT' 'EXISTS' constraint_name constraint_elem opt_validate_behavior | 'ALTER' 'PRIMARY' 'KEY' 'USING' 'COLUMNS' '(' index_params ')' opt_hash_sharded opt_with_storage_parameter_list | 'VALIDATE' 'CONSTRAINT' constraint_name | 'DROP' 'CONSTRAINT' 'IF' 'EXISTS' constraint_name opt_drop_behavior | 'DROP' 'CONSTRAINT' constraint_name opt_drop_behavior | 'EXPERIMENTAL_AUDIT' 'SET' audit_mode | ( 'PARTITION' 'BY' partition_by_inner | 'PARTITION' 'ALL' 'BY' partition_by_inner ) | 'SET' '(' storage_parameter_list ')' | 'RESET' '(' storage_parameter_key_list ')' ) ) )*
| 'ALTER' 'TABLE' 'IF' 'EXISTS' table_name 'PARTITION' 'ALL' 'BY' partition_by_inner ( ( ',' ( 'RENAME' opt_column column_name 'TO' column_name | 'RENAME' 'CONSTRAINT' column_name 'TO' column_name | 'ADD' column_table_def | 'ADD' 'IF' 'NOT' 'EXISTS' column_table_def | 'ADD' 'COLUMN' column_table_def | 'ADD' 'COLUMN' 'IF' 'NOT' 'EXISTS' column_table_def | 'ALTER' opt_column column_name alter_column_default | 'ALTER' opt_column column_name alter_column_on_update | 'ALTER' opt_column column_name alter_column_visible | 'ALTER' opt_column column_name 'DROP' 'NOT' 'NULL' | 'ALTER' opt_column column_name 'DROP' 'STORED' | 'ALTER' opt_column column_name 'SET' 'NOT' 'NULL' | 'DROP' opt_column 'IF' 'EXISTS' column_name opt_drop_behavior | 'DROP' opt_column column_name opt_drop_behavior | 'ALTER' opt_column column_name opt_set_data 'TYPE' typename opt_collate opt_alter_column_using | 'ADD' table_constraint opt_validate_behavior | 'ADD' 'CONSTRAINT' 'IF' 'NOT' 'EXISTS' constraint_name constraint_elem opt_validate_behavior | 'ALTER' 'PRIMARY' 'KEY' 'USING' 'COLUMNS' '(' index_params ')' opt_hash_sharded opt_with_storage_parameter_list | 'VALIDATE' 'CONSTRAINT' constraint_name | 'DROP' 'CONSTRAINT' 'IF' 'EXISTS' constraint_name opt_drop_behavior | 'DROP' 'CONSTRAINT' constraint_name opt_drop_behavior | 'EXPERIMENTAL_AUDIT' 'SET' audit_mode | ( 'PARTITION' 'BY' partition_by_inner | 'PARTITION' 'ALL' 'BY' partition_by_inner ) | 'SET' '(' storage_parameter_list ')' | 'RESET' '(' storage_parameter_key_list ')' ) ) )*
'ALTER' 'TABLE' table_name 'PARTITION' 'ALL' 'BY' partition_by_inner ( ( ',' ( 'RENAME' opt_column column_name 'TO' column_name | 'RENAME' 'CONSTRAINT' column_name 'TO' column_name | 'ADD' column_table_def | 'ADD' 'IF' 'NOT' 'EXISTS' column_table_def | 'ADD' 'COLUMN' column_table_def | 'ADD' 'COLUMN' 'IF' 'NOT' 'EXISTS' column_table_def | 'ALTER' opt_column column_name alter_column_default | 'ALTER' opt_column column_name alter_column_on_update | 'ALTER' opt_column column_name alter_column_visible | 'ALTER' opt_column column_name 'DROP' 'NOT' 'NULL' | 'ALTER' opt_column column_name alter_identity_column_option | 'ALTER' opt_column column_name 'DROP' 'STORED' | 'ALTER' opt_column column_name 'SET' 'NOT' 'NULL' | 'DROP' opt_column 'IF' 'EXISTS' column_name opt_drop_behavior | 'DROP' opt_column column_name opt_drop_behavior | 'ALTER' opt_column column_name opt_set_data 'TYPE' typename opt_collate opt_alter_column_using | 'ADD' table_constraint opt_validate_behavior | 'ADD' 'CONSTRAINT' 'IF' 'NOT' 'EXISTS' constraint_name constraint_elem opt_validate_behavior | 'ALTER' 'PRIMARY' 'KEY' 'USING' 'COLUMNS' '(' index_params ')' opt_hash_sharded opt_with_storage_parameter_list | 'VALIDATE' 'CONSTRAINT' constraint_name | 'DROP' 'CONSTRAINT' 'IF' 'EXISTS' constraint_name opt_drop_behavior | 'DROP' 'CONSTRAINT' constraint_name opt_drop_behavior | 'EXPERIMENTAL_AUDIT' 'SET' audit_mode | ( 'PARTITION' 'BY' partition_by_inner | 'PARTITION' 'ALL' 'BY' partition_by_inner ) | 'SET' '(' storage_parameter_list ')' | 'RESET' '(' storage_parameter_key_list ')' ) ) )*
| 'ALTER' 'TABLE' 'IF' 'EXISTS' table_name 'PARTITION' 'ALL' 'BY' partition_by_inner ( ( ',' ( 'RENAME' opt_column column_name 'TO' column_name | 'RENAME' 'CONSTRAINT' column_name 'TO' column_name | 'ADD' column_table_def | 'ADD' 'IF' 'NOT' 'EXISTS' column_table_def | 'ADD' 'COLUMN' column_table_def | 'ADD' 'COLUMN' 'IF' 'NOT' 'EXISTS' column_table_def | 'ALTER' opt_column column_name alter_column_default | 'ALTER' opt_column column_name alter_column_on_update | 'ALTER' opt_column column_name alter_column_visible | 'ALTER' opt_column column_name 'DROP' 'NOT' 'NULL' | 'ALTER' opt_column column_name alter_identity_column_option | 'ALTER' opt_column column_name 'DROP' 'STORED' | 'ALTER' opt_column column_name 'SET' 'NOT' 'NULL' | 'DROP' opt_column 'IF' 'EXISTS' column_name opt_drop_behavior | 'DROP' opt_column column_name opt_drop_behavior | 'ALTER' opt_column column_name opt_set_data 'TYPE' typename opt_collate opt_alter_column_using | 'ADD' table_constraint opt_validate_behavior | 'ADD' 'CONSTRAINT' 'IF' 'NOT' 'EXISTS' constraint_name constraint_elem opt_validate_behavior | 'ALTER' 'PRIMARY' 'KEY' 'USING' 'COLUMNS' '(' index_params ')' opt_hash_sharded opt_with_storage_parameter_list | 'VALIDATE' 'CONSTRAINT' constraint_name | 'DROP' 'CONSTRAINT' 'IF' 'EXISTS' constraint_name opt_drop_behavior | 'DROP' 'CONSTRAINT' constraint_name opt_drop_behavior | 'EXPERIMENTAL_AUDIT' 'SET' audit_mode | ( 'PARTITION' 'BY' partition_by_inner | 'PARTITION' 'ALL' 'BY' partition_by_inner ) | 'SET' '(' storage_parameter_list ')' | 'RESET' '(' storage_parameter_key_list ')' ) ) )*
5 changes: 5 additions & 0 deletions docs/generated/sql/bnf/stmt_block.bnf
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Original file line number Diff line number Diff line change
Expand Up @@ -3401,6 +3401,7 @@ alter_table_cmd ::=
| 'ALTER' opt_column column_name alter_column_on_update
| 'ALTER' opt_column column_name alter_column_visible
| 'ALTER' opt_column column_name 'DROP' 'NOT' 'NULL'
| 'ALTER' opt_column column_name alter_identity_column_option
| 'ALTER' opt_column column_name 'DROP' 'STORED'
| 'ALTER' opt_column column_name 'SET' 'NOT' 'NULL'
| 'DROP' opt_column 'IF' 'EXISTS' column_name opt_drop_behavior
Expand Down Expand Up @@ -4307,6 +4308,10 @@ alter_column_visible ::=
'SET' 'VISIBLE'
| 'SET' 'NOT' 'VISIBLE'

alter_identity_column_option ::=
'SET' 'GENERATED_ALWAYS' 'ALWAYS'
| 'SET' 'GENERATED_BY_DEFAULT' 'BY' 'DEFAULT'

opt_set_data ::=
'SET' 'DATA'
|
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7 changes: 7 additions & 0 deletions pkg/ccl/logictestccl/tests/3node-tenant/generated_test.go
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20 changes: 20 additions & 0 deletions pkg/sql/alter_table.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1058,6 +1058,26 @@ func applyColumnMutation(
"column %q is not a stored computed column", col.GetName())
}
col.ColumnDesc().ComputeExpr = nil

case *tree.AlterTableIdentity:
if !col.IsGeneratedAsIdentity() {
return pgerror.Newf(pgcode.ObjectNotInPrerequisiteState,
"column %q of relation %q is not an identity column",
col.GetName(), tableDesc.GetName())
}

switch t.Option.GeneratedAsIdentityType {
case tree.GeneratedAlways:
if col.IsGeneratedAlwaysAsIdentity() {
return nil
}
col.ColumnDesc().GeneratedAsIdentityType = catpb.GeneratedAsIdentityType_GENERATED_ALWAYS
case tree.GeneratedByDefault:
if col.IsGeneratedByDefaultAsIdentity() {
return nil
}
col.ColumnDesc().GeneratedAsIdentityType = catpb.GeneratedAsIdentityType_GENERATED_BY_DEFAULT
}
}
return nil
}
Expand Down
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