mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-21 15:12:02 +00:00
Simplier alter modify logic
This commit is contained in:
alesapin
parent
28b2a03b08
commit
d5b4ddf6d8
@ -511,13 +511,11 @@ void AlterCommands::prepare(const StorageInMemoryMetadata & metadata, const Cont
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for (size_t i = 0; i < size(); ++i)
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{
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auto & command = (*this)[i];
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bool has_column = columns.has(command.column_name);
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bool has_column = columns.has(command.column_name) || columns.hasNested(command.column_name);
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if (command.type == AlterCommand::MODIFY_COLUMN)
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{
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if (!has_column && command.if_exists)
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{
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command.ignore = true;
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}
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if (has_column)
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{
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@ -529,9 +527,13 @@ void AlterCommands::prepare(const StorageInMemoryMetadata & metadata, const Cont
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}
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}
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}
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else if (command.type == AlterCommand::ADD_COLUMN
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|| command.type == AlterCommand::DROP_COLUMN
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|| command.type == AlterCommand::COMMENT_COLUMN)
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else if (command.type == AlterCommand::ADD_COLUMN)
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{
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if (has_column && command.if_not_exists)
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command.ignore = true;
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}
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else if (command.type == AlterCommand::DROP_COLUMN
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|| command.type == AlterCommand::COMMENT_COLUMN)
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{
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if (!has_column && command.if_exists)
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command.ignore = true;
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@ -542,6 +544,7 @@ void AlterCommands::prepare(const StorageInMemoryMetadata & metadata, const Cont
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void AlterCommands::validate(const StorageInMemoryMetadata & metadata, const Context & context) const
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{
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auto all_columns = metadata.columns;
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for (size_t i = 0; i < size(); ++i)
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{
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auto & command = (*this)[i];
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@ -550,29 +553,45 @@ void AlterCommands::validate(const StorageInMemoryMetadata & metadata, const Con
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if (command.type == AlterCommand::ADD_COLUMN)
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{
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if (metadata.columns.has(column_name) || metadata.columns.hasNested(column_name))
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{
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if (!command.if_not_exists)
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throw Exception{"Cannot add column " + column_name + ": column with this name already exists", ErrorCodes::ILLEGAL_COLUMN};
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else
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continue;
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}
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if (!command.data_type)
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throw Exception{"Data type have to be specified for column " + column_name + " to add", ErrorCodes::ILLEGAL_COLUMN};
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if (command.default_expression)
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validateDefaultExpressionForNewColumn(command.default_expression, column_name, command.data_type, metadata.columns, context);
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validateDefaultExpressionForNewColumn(command.default_expression, column_name, command.data_type, all_columns, context);
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all_columns.add(ColumnDescription(column_name, command.data_type, false));
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}
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else if (command.type == AlterCommand::MODIFY_COLUMN)
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{
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if (!metadata.columns.has(column_name))
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{
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if (!command.if_exists)
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throw Exception{"Wrong column name. Cannot find column " + column_name + " to modify", ErrorCodes::ILLEGAL_COLUMN};
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else
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continue;
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}
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auto column_in_table = metadata.columns.get(column_name);
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if (command.default_expression)
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{
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if (!command.data_type)
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validateDefaultExpressionForNewColumn(
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command.default_expression, column_name, metadata.columns.get(column_name).type, metadata.columns, context);
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command.default_expression, column_name, column_in_table.type, all_columns, context);
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else
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validateDefaultExpressionForNewColumn(
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command.default_expression, column_name, command.data_type, metadata.columns, context);
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command.default_expression, column_name, command.data_type, all_columns, context);
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}
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else if (column_in_table.default_desc.expression && command.data_type)
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{
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validateDefaultExpressionForNewColumn(
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column_in_table.default_desc.expression, column_name, command.data_type, all_columns, context);
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}
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}
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else if (command.type == AlterCommand::DROP_COLUMN)
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@ -38,8 +38,8 @@ k UInt64
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i32 Int32
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n.ui8 Array(UInt8)
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n.s Array(String)
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s Int64
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CREATE TABLE default.alter_00061 (`d` Date, `k` UInt64, `i32` Int32, `n.ui8` Array(UInt8), `n.s` Array(String), `s` Int64) ENGINE = MergeTree(d, k, 8192)
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s Int64 DEFAULT \'0\'
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CREATE TABLE default.alter_00061 (`d` Date, `k` UInt64, `i32` Int32, `n.ui8` Array(UInt8), `n.s` Array(String), `s` Int64 DEFAULT \'0\') ENGINE = MergeTree(d, k, 8192)
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2015-01-01 6 38 [10,20,30] ['asd','qwe','qwe'] 100500
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2015-01-01 7 39 [10,20,30] ['120','130','140'] 0
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2015-01-01 8 40 [1,2,3] ['12','13','14'] 0
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@ -49,9 +49,9 @@ k UInt64
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i32 Int32
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n.ui8 Array(UInt8)
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n.s Array(String)
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s UInt32
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s UInt32 DEFAULT \'0\'
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n.d Array(Date)
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CREATE TABLE default.alter_00061 (`d` Date, `k` UInt64, `i32` Int32, `n.ui8` Array(UInt8), `n.s` Array(String), `s` UInt32, `n.d` Array(Date)) ENGINE = MergeTree(d, k, 8192)
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CREATE TABLE default.alter_00061 (`d` Date, `k` UInt64, `i32` Int32, `n.ui8` Array(UInt8), `n.s` Array(String), `s` UInt32 DEFAULT \'0\', `n.d` Array(Date)) ENGINE = MergeTree(d, k, 8192)
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2015-01-01 6 38 [10,20,30] ['asd','qwe','qwe'] 100500 ['0000-00-00','0000-00-00','0000-00-00']
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2015-01-01 7 39 [10,20,30] ['120','130','140'] 0 ['0000-00-00','0000-00-00','0000-00-00']
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2015-01-01 8 40 [1,2,3] ['12','13','14'] 0 ['0000-00-00','0000-00-00','0000-00-00']
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@ -64,8 +64,8 @@ d Date
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k UInt64
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i32 Int32
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n.s Array(String)
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s UInt32
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CREATE TABLE default.alter_00061 (`d` Date, `k` UInt64, `i32` Int32, `n.s` Array(String), `s` UInt32) ENGINE = MergeTree(d, k, 8192)
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s UInt32 DEFAULT \'0\'
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CREATE TABLE default.alter_00061 (`d` Date, `k` UInt64, `i32` Int32, `n.s` Array(String), `s` UInt32 DEFAULT \'0\') ENGINE = MergeTree(d, k, 8192)
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2015-01-01 6 38 ['asd','qwe','qwe'] 100500
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2015-01-01 7 39 ['120','130','140'] 0
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2015-01-01 8 40 ['12','13','14'] 0
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@ -73,8 +73,8 @@ CREATE TABLE default.alter_00061 (`d` Date, `k` UInt64, `i32` Int32, `n.s` Array
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d Date
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k UInt64
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i32 Int32
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s UInt32
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CREATE TABLE default.alter_00061 (`d` Date, `k` UInt64, `i32` Int32, `s` UInt32) ENGINE = MergeTree(d, k, 8192)
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s UInt32 DEFAULT \'0\'
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CREATE TABLE default.alter_00061 (`d` Date, `k` UInt64, `i32` Int32, `s` UInt32 DEFAULT \'0\') ENGINE = MergeTree(d, k, 8192)
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2015-01-01 6 38 100500
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2015-01-01 7 39 0
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2015-01-01 8 40 0
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@ -82,10 +82,10 @@ CREATE TABLE default.alter_00061 (`d` Date, `k` UInt64, `i32` Int32, `s` UInt32)
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d Date
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k UInt64
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i32 Int32
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s UInt32
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s UInt32 DEFAULT \'0\'
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n.s Array(String)
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n.d Array(Date)
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CREATE TABLE default.alter_00061 (`d` Date, `k` UInt64, `i32` Int32, `s` UInt32, `n.s` Array(String), `n.d` Array(Date)) ENGINE = MergeTree(d, k, 8192)
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CREATE TABLE default.alter_00061 (`d` Date, `k` UInt64, `i32` Int32, `s` UInt32 DEFAULT \'0\', `n.s` Array(String), `n.d` Array(Date)) ENGINE = MergeTree(d, k, 8192)
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2015-01-01 6 38 100500 [] []
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2015-01-01 7 39 0 [] []
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2015-01-01 8 40 0 [] []
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@ -93,8 +93,8 @@ CREATE TABLE default.alter_00061 (`d` Date, `k` UInt64, `i32` Int32, `s` UInt32,
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d Date
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k UInt64
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i32 Int32
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s UInt32
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CREATE TABLE default.alter_00061 (`d` Date, `k` UInt64, `i32` Int32, `s` UInt32) ENGINE = MergeTree(d, k, 8192)
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s UInt32 DEFAULT \'0\'
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CREATE TABLE default.alter_00061 (`d` Date, `k` UInt64, `i32` Int32, `s` UInt32 DEFAULT \'0\') ENGINE = MergeTree(d, k, 8192)
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2015-01-01 6 38 100500
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2015-01-01 7 39 0
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2015-01-01 8 40 0
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@ -85,16 +85,16 @@ i32 Int32
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dt DateTime
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n.ui8 Array(UInt8)
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n.s Array(String)
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s Int64
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CREATE TABLE test.replicated_alter1 (`d` Date, `k` UInt64, `i32` Int32, `dt` DateTime, `n.ui8` Array(UInt8), `n.s` Array(String), `s` Int64) ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r1\', d, k, 8192)
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s Int64 DEFAULT \'0\'
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CREATE TABLE test.replicated_alter1 (`d` Date, `k` UInt64, `i32` Int32, `dt` DateTime, `n.ui8` Array(UInt8), `n.s` Array(String), `s` Int64 DEFAULT \'0\') ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r1\', d, k, 8192)
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d Date
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k UInt64
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i32 Int32
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dt DateTime
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n.ui8 Array(UInt8)
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n.s Array(String)
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s Int64
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CREATE TABLE test.replicated_alter2 (`d` Date, `k` UInt64, `i32` Int32, `dt` DateTime, `n.ui8` Array(UInt8), `n.s` Array(String), `s` Int64) ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r2\', d, k, 8192)
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s Int64 DEFAULT \'0\'
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CREATE TABLE test.replicated_alter2 (`d` Date, `k` UInt64, `i32` Int32, `dt` DateTime, `n.ui8` Array(UInt8), `n.s` Array(String), `s` Int64 DEFAULT \'0\') ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r2\', d, k, 8192)
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2015-01-01 6 38 2014-07-15 13:26:50 [10,20,30] ['asd','qwe','qwe'] 100500
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2015-01-01 7 39 2014-07-14 13:26:50 [10,20,30] ['120','130','140'] 0
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2015-01-01 8 40 2012-12-12 12:12:12 [1,2,3] ['12','13','14'] 0
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@ -106,18 +106,18 @@ i32 Int32
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dt DateTime
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n.ui8 Array(UInt8)
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n.s Array(String)
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s UInt32
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s UInt32 DEFAULT \'0\'
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n.d Array(Date)
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CREATE TABLE test.replicated_alter1 (`d` Date, `k` UInt64, `i32` Int32, `dt` DateTime, `n.ui8` Array(UInt8), `n.s` Array(String), `s` UInt32, `n.d` Array(Date)) ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r1\', d, k, 8192)
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CREATE TABLE test.replicated_alter1 (`d` Date, `k` UInt64, `i32` Int32, `dt` DateTime, `n.ui8` Array(UInt8), `n.s` Array(String), `s` UInt32 DEFAULT \'0\', `n.d` Array(Date)) ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r1\', d, k, 8192)
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d Date
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k UInt64
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i32 Int32
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dt DateTime
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n.ui8 Array(UInt8)
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n.s Array(String)
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s UInt32
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s UInt32 DEFAULT \'0\'
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n.d Array(Date)
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CREATE TABLE test.replicated_alter2 (`d` Date, `k` UInt64, `i32` Int32, `dt` DateTime, `n.ui8` Array(UInt8), `n.s` Array(String), `s` UInt32, `n.d` Array(Date)) ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r2\', d, k, 8192)
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CREATE TABLE test.replicated_alter2 (`d` Date, `k` UInt64, `i32` Int32, `dt` DateTime, `n.ui8` Array(UInt8), `n.s` Array(String), `s` UInt32 DEFAULT \'0\', `n.d` Array(Date)) ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r2\', d, k, 8192)
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2015-01-01 6 38 2014-07-15 13:26:50 [10,20,30] ['asd','qwe','qwe'] 100500 ['0000-00-00','0000-00-00','0000-00-00']
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2015-01-01 7 39 2014-07-14 13:26:50 [10,20,30] ['120','130','140'] 0 ['0000-00-00','0000-00-00','0000-00-00']
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2015-01-01 8 40 2012-12-12 12:12:12 [1,2,3] ['12','13','14'] 0 ['0000-00-00','0000-00-00','0000-00-00']
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@ -128,15 +128,15 @@ k UInt64
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i32 Int32
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dt DateTime
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n.s Array(String)
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s UInt32
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CREATE TABLE test.replicated_alter1 (`d` Date, `k` UInt64, `i32` Int32, `dt` DateTime, `n.s` Array(String), `s` UInt32) ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r1\', d, k, 8192)
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s UInt32 DEFAULT \'0\'
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CREATE TABLE test.replicated_alter1 (`d` Date, `k` UInt64, `i32` Int32, `dt` DateTime, `n.s` Array(String), `s` UInt32 DEFAULT \'0\') ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r1\', d, k, 8192)
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d Date
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k UInt64
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i32 Int32
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dt DateTime
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n.s Array(String)
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s UInt32
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CREATE TABLE test.replicated_alter2 (`d` Date, `k` UInt64, `i32` Int32, `dt` DateTime, `n.s` Array(String), `s` UInt32) ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r2\', d, k, 8192)
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s UInt32 DEFAULT \'0\'
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CREATE TABLE test.replicated_alter2 (`d` Date, `k` UInt64, `i32` Int32, `dt` DateTime, `n.s` Array(String), `s` UInt32 DEFAULT \'0\') ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r2\', d, k, 8192)
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2015-01-01 6 38 2014-07-15 13:26:50 ['asd','qwe','qwe'] 100500
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2015-01-01 7 39 2014-07-14 13:26:50 ['120','130','140'] 0
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2015-01-01 8 40 2012-12-12 12:12:12 ['12','13','14'] 0
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@ -146,14 +146,14 @@ d Date
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k UInt64
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i32 Int32
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dt DateTime
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s UInt32
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CREATE TABLE test.replicated_alter1 (`d` Date, `k` UInt64, `i32` Int32, `dt` DateTime, `s` UInt32) ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r1\', d, k, 8192)
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s UInt32 DEFAULT \'0\'
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CREATE TABLE test.replicated_alter1 (`d` Date, `k` UInt64, `i32` Int32, `dt` DateTime, `s` UInt32 DEFAULT \'0\') ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r1\', d, k, 8192)
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d Date
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k UInt64
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i32 Int32
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dt DateTime
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s UInt32
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CREATE TABLE test.replicated_alter2 (`d` Date, `k` UInt64, `i32` Int32, `dt` DateTime, `s` UInt32) ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r2\', d, k, 8192)
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s UInt32 DEFAULT \'0\'
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CREATE TABLE test.replicated_alter2 (`d` Date, `k` UInt64, `i32` Int32, `dt` DateTime, `s` UInt32 DEFAULT \'0\') ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r2\', d, k, 8192)
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2015-01-01 6 38 2014-07-15 13:26:50 100500
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2015-01-01 7 39 2014-07-14 13:26:50 0
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2015-01-01 8 40 2012-12-12 12:12:12 0
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@ -163,18 +163,18 @@ d Date
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k UInt64
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i32 Int32
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dt DateTime
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s UInt32
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s UInt32 DEFAULT \'0\'
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n.s Array(String)
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n.d Array(Date)
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CREATE TABLE test.replicated_alter1 (`d` Date, `k` UInt64, `i32` Int32, `dt` DateTime, `s` UInt32, `n.s` Array(String), `n.d` Array(Date)) ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r1\', d, k, 8192)
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CREATE TABLE test.replicated_alter1 (`d` Date, `k` UInt64, `i32` Int32, `dt` DateTime, `s` UInt32 DEFAULT \'0\', `n.s` Array(String), `n.d` Array(Date)) ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r1\', d, k, 8192)
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d Date
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k UInt64
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i32 Int32
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dt DateTime
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s UInt32
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s UInt32 DEFAULT \'0\'
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n.s Array(String)
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n.d Array(Date)
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CREATE TABLE test.replicated_alter2 (`d` Date, `k` UInt64, `i32` Int32, `dt` DateTime, `s` UInt32, `n.s` Array(String), `n.d` Array(Date)) ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r2\', d, k, 8192)
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CREATE TABLE test.replicated_alter2 (`d` Date, `k` UInt64, `i32` Int32, `dt` DateTime, `s` UInt32 DEFAULT \'0\', `n.s` Array(String), `n.d` Array(Date)) ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r2\', d, k, 8192)
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2015-01-01 6 38 2014-07-15 13:26:50 100500 [] []
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2015-01-01 7 39 2014-07-14 13:26:50 0 [] []
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2015-01-01 8 40 2012-12-12 12:12:12 0 [] []
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@ -184,14 +184,14 @@ d Date
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k UInt64
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i32 Int32
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dt DateTime
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s UInt32
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CREATE TABLE test.replicated_alter1 (`d` Date, `k` UInt64, `i32` Int32, `dt` DateTime, `s` UInt32) ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r1\', d, k, 8192)
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s UInt32 DEFAULT \'0\'
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CREATE TABLE test.replicated_alter1 (`d` Date, `k` UInt64, `i32` Int32, `dt` DateTime, `s` UInt32 DEFAULT \'0\') ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r1\', d, k, 8192)
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d Date
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k UInt64
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i32 Int32
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dt DateTime
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s UInt32
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CREATE TABLE test.replicated_alter2 (`d` Date, `k` UInt64, `i32` Int32, `dt` DateTime, `s` UInt32) ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r2\', d, k, 8192)
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s UInt32 DEFAULT \'0\'
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CREATE TABLE test.replicated_alter2 (`d` Date, `k` UInt64, `i32` Int32, `dt` DateTime, `s` UInt32 DEFAULT \'0\') ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r2\', d, k, 8192)
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2015-01-01 6 38 2014-07-15 13:26:50 100500
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2015-01-01 7 39 2014-07-14 13:26:50 0
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2015-01-01 8 40 2012-12-12 12:12:12 0
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@ -201,14 +201,14 @@ d Date
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k UInt64
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i32 Int32
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dt Date
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s DateTime
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CREATE TABLE test.replicated_alter1 (`d` Date, `k` UInt64, `i32` Int32, `dt` Date, `s` DateTime) ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r1\', d, k, 8192)
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s DateTime DEFAULT \'0000-00-00 00:00:00\'
|
||||
CREATE TABLE test.replicated_alter1 (`d` Date, `k` UInt64, `i32` Int32, `dt` Date, `s` DateTime DEFAULT \'0000-00-00 00:00:00\') ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r1\', d, k, 8192)
|
||||
d Date
|
||||
k UInt64
|
||||
i32 Int32
|
||||
dt Date
|
||||
s DateTime
|
||||
CREATE TABLE test.replicated_alter2 (`d` Date, `k` UInt64, `i32` Int32, `dt` Date, `s` DateTime) ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r2\', d, k, 8192)
|
||||
s DateTime DEFAULT \'0000-00-00 00:00:00\'
|
||||
CREATE TABLE test.replicated_alter2 (`d` Date, `k` UInt64, `i32` Int32, `dt` Date, `s` DateTime DEFAULT \'0000-00-00 00:00:00\') ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/test/alter\', \'r2\', d, k, 8192)
|
||||
2015-01-01 6 38 2014-07-15 1970-01-02 06:55:00
|
||||
2015-01-01 7 39 2014-07-14 0000-00-00 00:00:00
|
||||
2015-01-01 8 40 2012-12-12 0000-00-00 00:00:00
|
||||
|
||||
@ -95,7 +95,7 @@ DESC TABLE test.replicated_alter2;
|
||||
SHOW CREATE TABLE test.replicated_alter2;
|
||||
SELECT * FROM test.replicated_alter1 ORDER BY k;
|
||||
|
||||
ALTER TABLE test.replicated_alter1 MODIFY COLUMN dt Date, MODIFY COLUMN s DateTime;
|
||||
ALTER TABLE test.replicated_alter1 MODIFY COLUMN dt Date, MODIFY COLUMN s DateTime DEFAULT '0000-00-00 00:00:00';
|
||||
|
||||
DESC TABLE test.replicated_alter1;
|
||||
SHOW CREATE TABLE test.replicated_alter1;
|
||||
|
||||
@ -11,7 +11,7 @@ select array from aliases_test;
|
||||
alter table aliases_test modify column array default [0, 1, 2];
|
||||
select array from aliases_test;
|
||||
|
||||
alter table aliases_test add column struct.key default [0, 1, 2], add column struct.value default array;
|
||||
alter table aliases_test add column struct.key Array(UInt8) default [0, 1, 2], add column struct.value Array(UInt8) default array;
|
||||
select struct.key, struct.value from aliases_test;
|
||||
|
||||
alter table aliases_test modify column struct.value alias array;
|
||||
|
||||
@ -0,0 +1,11 @@
|
||||
CREATE TABLE default.alter_default (`date` Date, `key` UInt64, `value` String DEFAULT \'10\') ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/alter_default\', \'1\') ORDER BY key SETTINGS index_granularity = 8192
|
||||
1000
|
||||
CREATE TABLE default.alter_default (`date` Date, `key` UInt64, `value` UInt64 DEFAULT \'10\') ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/alter_default\', \'1\') ORDER BY key SETTINGS index_granularity = 8192
|
||||
CREATE TABLE default.alter_default (`date` Date, `key` UInt64, `value` UInt64 DEFAULT 10) ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/alter_default\', \'1\') ORDER BY key SETTINGS index_granularity = 8192
|
||||
1000
|
||||
CREATE TABLE default.alter_default (`date` Date, `key` UInt64, `value` UInt64 DEFAULT 100) ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/alter_default\', \'1\') ORDER BY key SETTINGS index_granularity = 8192
|
||||
CREATE TABLE default.alter_default (`date` Date, `key` UInt64, `value` UInt16 DEFAULT 100) ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/alter_default\', \'1\') ORDER BY key SETTINGS index_granularity = 8192
|
||||
10000
|
||||
CREATE TABLE default.alter_default (`date` Date, `key` UInt64, `value` UInt8 DEFAULT 10) ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/alter_default\', \'1\') ORDER BY key SETTINGS index_granularity = 8192
|
||||
CREATE TABLE default.alter_default (`date` Date, `key` UInt64, `value` UInt8 DEFAULT 10, `better_column` UInt8 DEFAULT \'1\') ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/alter_default\', \'1\') ORDER BY key SETTINGS index_granularity = 8192
|
||||
CREATE TABLE default.alter_default (`date` Date, `key` UInt64, `value` UInt8 DEFAULT 10, `better_column` UInt8 DEFAULT \'1\', `other_date` String DEFAULT 1) ENGINE = ReplicatedMergeTree(\'/clickhouse/tables/alter_default\', \'1\') ORDER BY key SETTINGS index_granularity = 8192
|
||||
@ -0,0 +1,60 @@
|
||||
DROP TABLE IF EXISTS alter_default;
|
||||
|
||||
CREATE TABLE alter_default
|
||||
(
|
||||
date Date,
|
||||
key UInt64
|
||||
)
|
||||
ENGINE ReplicatedMergeTree('/clickhouse/tables/alter_default', '1')
|
||||
ORDER BY key;
|
||||
|
||||
INSERT INTO alter_default select toDate('2020-01-05'), number from system.numbers limit 100;
|
||||
|
||||
-- Cannot add column without type
|
||||
ALTER TABLE alter_default ADD COLUMN value DEFAULT '10'; --{serverError 44}
|
||||
|
||||
ALTER TABLE alter_default ADD COLUMN value String DEFAULT '10';
|
||||
|
||||
SHOW CREATE TABLE alter_default;
|
||||
|
||||
SELECT sum(cast(value as UInt64)) FROM alter_default;
|
||||
|
||||
ALTER TABLE alter_default MODIFY COLUMN value UInt64;
|
||||
|
||||
SHOW CREATE TABLE alter_default;
|
||||
|
||||
ALTER TABLE alter_default MODIFY COLUMN value UInt64 DEFAULT 10;
|
||||
|
||||
SHOW CREATE TABLE alter_default;
|
||||
|
||||
SELECT sum(value) from alter_default;
|
||||
|
||||
ALTER TABLE alter_default MODIFY COLUMN value DEFAULT 100;
|
||||
|
||||
SHOW CREATE TABLE alter_default;
|
||||
|
||||
ALTER TABLE alter_default MODIFY COLUMN value UInt16 DEFAULT 100;
|
||||
|
||||
SHOW CREATE TABLE alter_default;
|
||||
|
||||
SELECT sum(value) from alter_default;
|
||||
|
||||
ALTER TABLE alter_default MODIFY COLUMN value UInt8 DEFAULT 10;
|
||||
|
||||
SHOW CREATE TABLE alter_default;
|
||||
|
||||
ALTER TABLE alter_default ADD COLUMN bad_column UInt8 DEFAULT 'q'; --{serverError 6}
|
||||
|
||||
ALTER TABLE alter_default ADD COLUMN better_column UInt8 DEFAULT '1';
|
||||
|
||||
SHOW CREATE TABLE alter_default;
|
||||
|
||||
ALTER TABLE alter_default ADD COLUMN other_date String DEFAULT '0';
|
||||
|
||||
ALTER TABLE alter_default MODIFY COLUMN other_date DateTime; --{serverError 41}
|
||||
|
||||
ALTER TABLE alter_default MODIFY COLUMN other_date DEFAULT 1;
|
||||
|
||||
SHOW CREATE TABLE alter_default;
|
||||
|
||||
DROP TABLE IF EXISTS alter_default;
|
||||
Loading…
Reference in New Issue
Block a user