lsst.dax.apdb.schema_model Namespace Reference

Classes
class	CheckConstraint
class	Column
class	Constraint
class	ExtraDataTypes
class	ForeignKeyConstraint
class	Index
class	Schema
class	Table
class	UniqueConstraint

Functions
_Mapping	_strip_keys (_Mapping map, Iterable[str] keys)
Iterable[str]	_make_iterable (str|Iterable[str] obj)

Variables
	_Mapping = Mapping[str, Any]
	DataTypes = felis.datamodel.DataType | ExtraDataTypes
dict	_data_type_size

Function Documentation

_make_iterable()

Iterable[str] lsst.dax.apdb.schema_model._make_iterable ( str | Iterable[str] obj )

protected

Make an iterable out of string or list of strings.

Definition at line 61 of file schema_model.py.

def _make_iterable(obj: str | Iterable[str]) -> Iterable[str]:
    """Make an iterable out of string or list of strings."""
    if isinstance(obj, str):
        yield obj
    else:
        yield from obj
 
 

_strip_keys()

_Mapping lsst.dax.apdb.schema_model._strip_keys ( _Mapping map, Iterable[str] keys )

protected

Return a copy of a dictionary with some keys removed.

Definition at line 55 of file schema_model.py.

def _strip_keys(map: _Mapping, keys: Iterable[str]) -> _Mapping:
    """Return a copy of a dictionary with some keys removed."""
    keys = set(keys)
    return {key: value for key, value in map.items() if key not in keys}
 
 

Variable Documentation

_data_type_size

dict lsst.dax.apdb.schema_model._data_type_size

protected

Initial value:

=  {
    felis.datamodel.DataType.boolean: 1,
    felis.datamodel.DataType.byte: 1,
    felis.datamodel.DataType.short: 2,
    felis.datamodel.DataType.int: 4,
    felis.datamodel.DataType.long: 8,
    felis.datamodel.DataType.float: 4,
    felis.datamodel.DataType.double: 8,
    felis.datamodel.DataType.char: 1,
    felis.datamodel.DataType.string: 2,  # approximation, depends on character set
    felis.datamodel.DataType.unicode: 2,  # approximation, depends on character set
    felis.datamodel.DataType.text: 2,  # approximation, depends on character set
    felis.datamodel.DataType.binary: 1,
    felis.datamodel.DataType.timestamp: 8,  # May be different depending on backend
    ExtraDataTypes.UUID: 16,
}

Definition at line 69 of file schema_model.py.

_Mapping

lsst.dax.apdb.schema_model._Mapping = Mapping[str, Any]

protected

Definition at line 43 of file schema_model.py.

DataTypes

lsst.dax.apdb.schema_model.DataTypes = felis.datamodel.DataType | ExtraDataTypes

Definition at line 52 of file schema_model.py.