Data Description

Data types
Data type
Supported
Notes
BOOLEAN
✅
Alias for TINYINT
INTEGER
✅
​
TINYINT
✅
​
SMALLINT
✅
​
MEDIUMINT
✅
​
INT
✅
​
BIGINT
✅
​
DECIMAL
✅
Max (precision + scale) is 65
FLOAT
✅
​
DOUBLE
✅
​
BIT
✅
​
DATE
✅
​
TIME
✅
​
DATETIME
✅
​
TIMESTAMP
✅
​
YEAR
✅
​
CHAR
✅
​
VARCHAR
✅
​
BINARY
✅
​
VARBINARY
✅
​
TINYBLOB
✅
​
BLOB
✅
​
MEDIUMBLOB
✅
​
LONGBLOB
✅
​
TINYTEXT
✅
​
TEXT
✅
​
MEDIUMTEXT
✅
​
LONGTEXT
✅
​
ENUM
✅
​
SET
✅
​
GEOMETRY
✅
​
POINT
✅
​
LINESTRING
✅
​
POLYGON
✅
​
MULTIPOINT
✅
​
MULTILINESTRING
✅
​
MULTIPOLYGON
✅
​
GEOMETRYCOLLECTION
✅
​
JSON
✅
​
Constraints
Component
Supported
Notes and limitations
Not Null
✅
​
Unique
✅
Unique constraints are supported via creation of indexes with UNIQUE keys.
Primary Key
✅
​
Check
✅
​
Foreign Key
✅
​
Default Value
✅
​
Indexes
Component
Supported
Notes and limitations
Indexes
🟠
Unsupported on TINYTEXT, TEXT, MEDIUMTEXT, LONGTEXT, TINYBLOB, BLOB, MEDIUMBLOB and LONGBLOB data types
Multi-column indexes
✅
​
Full-text indexes
❌
​
Spatial indexes
✅
​
Schema
Component
Supported
Notes and limitations
ALTER TABLE statements
🟠
Some limitations. See the supported statements doc.
Database renames
❌
Database names are read-only, and configured by the server at startup.
Adding tables
✅
​
Dropping tables
✅
​
Table renames
✅
​
Adding views
✅
​
Dropping views
✅
​
View renames
❌
​
Column renames
✅
​
Adding columns
✅
​
Removing columns
✅
​
Reordering columns
✅
​
Adding constraints
✅
​
Removing constraints
✅
​
Creating indexes
✅
​
Index renames
✅
​
Removing indexes
✅
​
AUTO INCREMENT
✅
​

Data type	Supported	Notes
`BOOLEAN`	✅	Alias for `TINYINT`
`INTEGER`	✅
`TINYINT`	✅
`SMALLINT`	✅
`MEDIUMINT`	✅
`INT`	✅
`BIGINT`	✅
`DECIMAL`	✅	Max (precision + scale) is 65
`FLOAT`	✅
`DOUBLE`	✅
`BIT`	✅
`DATE`	✅
`TIME`	✅
`DATETIME`	✅
`TIMESTAMP`	✅
`YEAR`	✅
`CHAR`	✅
`VARCHAR`	✅
`BINARY`	✅
`VARBINARY`	✅
`TINYBLOB`	✅
`BLOB`	✅
`MEDIUMBLOB`	✅
`LONGBLOB`	✅
`TINYTEXT`	✅
`TEXT`	✅
`MEDIUMTEXT`	✅
`LONGTEXT`	✅
`ENUM`	✅
`SET`	✅
`GEOMETRY`	✅
`POINT`	✅
`LINESTRING`	✅
`POLYGON`	✅
`MULTIPOINT`	✅
`MULTILINESTRING`	✅
`MULTIPOLYGON`	✅
`GEOMETRYCOLLECTION`	✅
`JSON`	✅

Component	Supported	Notes and limitations
Not Null	✅
Unique	✅	Unique constraints are supported via creation of indexes with `UNIQUE` keys.
Primary Key	✅
Check	✅
Foreign Key	✅
Default Value	✅

Component	Supported	Notes and limitations
Indexes	🟠	Unsupported on TINYTEXT, TEXT, MEDIUMTEXT, LONGTEXT, TINYBLOB, BLOB, MEDIUMBLOB and LONGBLOB data types
Multi-column indexes	✅
Full-text indexes	❌
Spatial indexes	✅

Component	Supported	Notes and limitations
`ALTER TABLE` statements	🟠	Some limitations. See the supported statements doc.
Database renames	❌	Database names are read-only, and configured by the server at startup.
Adding tables	✅
Dropping tables	✅
Table renames	✅
Adding views	✅
Dropping views	✅
View renames	❌
Column renames	✅
Adding columns	✅
Removing columns	✅
Reordering columns	✅
Adding constraints	✅
Removing constraints	✅
Creating indexes	✅
Index renames	✅
Removing indexes	✅
`AUTO INCREMENT`	✅

Last modified 1mo ago