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feat(backends/mssql): add backend support for Microsoft Sql Server
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| DROP TABLE IF EXISTS diamonds; | ||
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| CREATE TABLE diamonds ( | ||
| carat FLOAT, | ||
| cut VARCHAR(MAX), | ||
| color VARCHAR(MAX), | ||
| clarity VARCHAR(MAX), | ||
| depth FLOAT, | ||
| "table" FLOAT, | ||
| price BIGINT, | ||
| x FLOAT, | ||
| y FLOAT, | ||
| z FLOAT | ||
| ); | ||
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| DROP TABLE IF EXISTS batting; | ||
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| CREATE TABLE batting ( | ||
| "playerID" VARCHAR(MAX), | ||
| "yearID" BIGINT, | ||
| stint BIGINT, | ||
| "teamID" VARCHAR(MAX), | ||
| "lgID" VARCHAR(MAX), | ||
| "G" BIGINT, | ||
| "AB" BIGINT, | ||
| "R" BIGINT, | ||
| "H" BIGINT, | ||
| "X2B" BIGINT, | ||
| "X3B" BIGINT, | ||
| "HR" BIGINT, | ||
| "RBI" BIGINT, | ||
| "SB" BIGINT, | ||
| "CS" BIGINT, | ||
| "BB" BIGINT, | ||
| "SO" BIGINT, | ||
| "IBB" BIGINT, | ||
| "HBP" BIGINT, | ||
| "SH" BIGINT, | ||
| "SF" BIGINT, | ||
| "GIDP" BIGINT | ||
| ); | ||
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| DROP TABLE IF EXISTS awards_players; | ||
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| CREATE TABLE awards_players ( | ||
| "playerID" VARCHAR(MAX), | ||
| "awardID" VARCHAR(MAX), | ||
| "yearID" BIGINT, | ||
| "lgID" VARCHAR(MAX), | ||
| tie VARCHAR(MAX), | ||
| notes VARCHAR(MAX) | ||
| ); | ||
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| DROP TABLE IF EXISTS functional_alltypes; | ||
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| CREATE TABLE functional_alltypes ( | ||
| "index" BIGINT, | ||
| "Unnamed: 0" BIGINT, | ||
| id INTEGER, | ||
| bool_col BIT, | ||
| tinyint_col SMALLINT, | ||
| smallint_col SMALLINT, | ||
| int_col INTEGER, | ||
| bigint_col BIGINT, | ||
| float_col REAL, | ||
| double_col DOUBLE PRECISION, | ||
| date_string_col VARCHAR(MAX), | ||
| string_col VARCHAR(MAX), | ||
| timestamp_col DATETIME2, | ||
| year INTEGER, | ||
| month INTEGER | ||
| ); | ||
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| CREATE INDEX "ix_functional_alltypes_index" ON functional_alltypes ("index"); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,39 @@ | ||
| """The Microsoft Sql Server backend.""" | ||
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| from __future__ import annotations | ||
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| from typing import Literal | ||
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| import sqlalchemy as sa | ||
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| from ibis.backends.base.sql.alchemy import BaseAlchemyBackend | ||
| from ibis.backends.mssql.compiler import MsSqlCompiler | ||
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| class Backend(BaseAlchemyBackend): | ||
| name = "mssql" | ||
| compiler = MsSqlCompiler | ||
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| def do_connect( | ||
| self, | ||
| host: str = "localhost", | ||
| user: str | None = None, | ||
| password: str | None = None, | ||
| port: int = 1433, | ||
| database: str | None = None, | ||
| url: str | None = None, | ||
| driver: Literal["pymssql"] = "pymssql", | ||
| ) -> None: | ||
| if driver != "pymssql": | ||
| raise NotImplementedError("pymssql is currently the only supported driver") | ||
| alchemy_url = self._build_alchemy_url( | ||
| url=url, | ||
| host=host, | ||
| port=port, | ||
| user=user, | ||
| password=password, | ||
| database=database, | ||
| driver=f'mssql+{driver}', | ||
| ) | ||
| self.database_name = alchemy_url.database | ||
| super().do_connect(sa.create_engine(alchemy_url)) |
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,35 @@ | ||
| import sqlalchemy as sa | ||
| from sqlalchemy.dialects import mssql | ||
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| import ibis.expr.datatypes as dt | ||
| from ibis.backends.base.sql.alchemy import AlchemyCompiler, AlchemyExprTranslator | ||
| from ibis.backends.mssql.registry import operation_registry | ||
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| class MsSqlExprTranslator(AlchemyExprTranslator): | ||
| _registry = operation_registry | ||
| _rewrites = AlchemyExprTranslator._rewrites.copy() | ||
| _type_map = AlchemyExprTranslator._type_map.copy() | ||
| _type_map.update( | ||
| { | ||
| dt.Boolean: mssql.BIT, | ||
| dt.Int8: mssql.TINYINT, | ||
| dt.Int16: mssql.SMALLINT, | ||
| dt.Int32: mssql.INTEGER, | ||
| dt.Int64: mssql.BIGINT, | ||
| dt.Float16: mssql.FLOAT, | ||
| dt.Float32: mssql.FLOAT, | ||
| dt.Float64: mssql.REAL, | ||
| dt.String: mssql.NVARCHAR, | ||
| } | ||
| ) | ||
| _bool_aggs_need_cast_to_int32 = True | ||
| integer_to_timestamp = sa.func.from_unixtime | ||
| native_json_type = False | ||
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| rewrites = MsSqlExprTranslator.rewrites | ||
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| class MsSqlCompiler(AlchemyCompiler): | ||
| translator_class = MsSqlExprTranslator |
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