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Reduce space to store state_attributes and event_data for new MariaDB/MySQL databases (#91150)

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Since MySQL and MariaDB support unsigned ints we can store the
hashes in 4 bytes instead of 8 bytes
This commit is contained in:
J. Nick Koston 2023-04-10 04:02:42 -10:00 committed by GitHub
parent bd0378a961
commit a62ede78ca
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1 changed files with 7 additions and 2 deletions
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9
homeassistant/components/recorder/db_schema.py
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@ -143,6 +143,11 @@ class FAST_PYSQLITE_DATETIME(sqlite.DATETIME):
return lambda value: None if value is None else ciso8601.parse_datetime(value) return lambda value: None if value is None else ciso8601.parse_datetime(value)
# For MariaDB and MySQL we can use an unsigned integer type since it will fit 2**32
# for sqlite and postgresql we use a bigint
UINT_32_TYPE = BigInteger().with_variant(
mysql.INTEGER(unsigned=True), "mysql", "mariadb" # type: ignore[no-untyped-call]
)
JSON_VARIANT_CAST = Text().with_variant( JSON_VARIANT_CAST = Text().with_variant(
postgresql.JSON(none_as_null=True), "postgresql" # type: ignore[no-untyped-call] postgresql.JSON(none_as_null=True), "postgresql" # type: ignore[no-untyped-call]
) )
@ -309,7 +314,7 @@ class EventData(Base):
__table_args__ = (_DEFAULT_TABLE_ARGS,) __table_args__ = (_DEFAULT_TABLE_ARGS,)
__tablename__ = TABLE_EVENT_DATA __tablename__ = TABLE_EVENT_DATA
data_id: Mapped[int] = mapped_column(Integer, Identity(), primary_key=True) data_id: Mapped[int] = mapped_column(Integer, Identity(), primary_key=True)
hash: Mapped[int | None] = mapped_column(BigInteger, index=True) hash: Mapped[int | None] = mapped_column(UINT_32_TYPE, index=True)
# Note that this is not named attributes to avoid confusion with the states table # Note that this is not named attributes to avoid confusion with the states table
shared_data: Mapped[str | None] = mapped_column( shared_data: Mapped[str | None] = mapped_column(
Text().with_variant(mysql.LONGTEXT, "mysql", "mariadb") Text().with_variant(mysql.LONGTEXT, "mysql", "mariadb")
@ -542,7 +547,7 @@ class StateAttributes(Base):
__table_args__ = (_DEFAULT_TABLE_ARGS,) __table_args__ = (_DEFAULT_TABLE_ARGS,)
__tablename__ = TABLE_STATE_ATTRIBUTES __tablename__ = TABLE_STATE_ATTRIBUTES
attributes_id: Mapped[int] = mapped_column(Integer, Identity(), primary_key=True) attributes_id: Mapped[int] = mapped_column(Integer, Identity(), primary_key=True)
hash: Mapped[int | None] = mapped_column(BigInteger, index=True) hash: Mapped[int | None] = mapped_column(UINT_32_TYPE, index=True)
# Note that this is not named attributes to avoid confusion with the states table # Note that this is not named attributes to avoid confusion with the states table
shared_attrs: Mapped[str | None] = mapped_column( shared_attrs: Mapped[str | None] = mapped_column(
Text().with_variant(mysql.LONGTEXT, "mysql", "mariadb") Text().with_variant(mysql.LONGTEXT, "mysql", "mariadb")