diff --git a/.github/workflows/ibis-backends.yml b/.github/workflows/ibis-backends.yml
index 26e3199d349b..e816320b6097 100644
--- a/.github/workflows/ibis-backends.yml
+++ b/.github/workflows/ibis-backends.yml
@@ -166,7 +166,7 @@ jobs:
             sys-deps:
               - libgeos-dev
           - name: risingwave
-            title: Risingwave
+            title: RisingWave
             serial: true
             services:
               - risingwave
@@ -304,7 +304,7 @@ jobs:
           - os: windows-latest
             backend:
               name: risingwave
-              title: Risingwave
+              title: RisingWave
               serial: true
               services:
                 - risingwave
diff --git a/docs/backends/risingwave.qmd b/docs/backends/risingwave.qmd
index c7879e4a3893..1eb7cc9d504e 100644
--- a/docs/backends/risingwave.qmd
+++ b/docs/backends/risingwave.qmd
@@ -30,7 +30,7 @@ con = ibis.risingwave.connect()  # <1>
 
 ## `conda`
 
-Install for Risingwave:
+Install for RisingWave:
 
 ```{.bash}
 conda install -c conda-forge ibis-risingwave
@@ -48,7 +48,7 @@ con = ibis.risingwave.connect()  # <1>
 
 ## `mamba`
 
-Install for Risingwave:
+Install for RisingWave:
 
 ```{.bash}
 mamba install -c conda-forge ibis-risingwave
@@ -98,7 +98,7 @@ render_do_connect("risingwave")
 
 ```{python}
 #| echo: false
-BACKEND = "Risingwave"
+BACKEND = "RisingWave"
 ```
 
 {{< include ./_templates/api.qmd >}}
diff --git a/docs/backends/support/matrix.qmd b/docs/backends/support/matrix.qmd
index 469ddf71b8c6..693c2739367b 100644
--- a/docs/backends/support/matrix.qmd
+++ b/docs/backends/support/matrix.qmd
@@ -72,7 +72,7 @@ import ibis.expr.operations as ops
 def make_support_matrix():
     """Construct the backend operation support matrix data."""
 
-    from ibis.backends.sql.compiler import ALL_OPERATIONS
+    from ibis.backends.sql.compilers.base import ALL_OPERATIONS
 
     support_matrix_ignored_operations = (ops.ScalarParameter,)
 
diff --git a/ibis/backends/bigquery/__init__.py b/ibis/backends/bigquery/__init__.py
index fb2a0c50188a..9452518ad518 100644
--- a/ibis/backends/bigquery/__init__.py
+++ b/ibis/backends/bigquery/__init__.py
@@ -31,10 +31,10 @@
     rename_partitioned_column,
     schema_from_bigquery_table,
 )
-from ibis.backends.bigquery.compiler import BigQueryCompiler
 from ibis.backends.bigquery.datatypes import BigQuerySchema
 from ibis.backends.bigquery.udf.core import PythonToJavaScriptTranslator
 from ibis.backends.sql import SQLBackend
+from ibis.backends.sql.compilers import BigQueryCompiler
 from ibis.backends.sql.datatypes import BigQueryType
 
 if TYPE_CHECKING:
diff --git a/ibis/backends/bigquery/tests/unit/test_compiler.py b/ibis/backends/bigquery/tests/unit/test_compiler.py
index 9a1ec9dbc04e..e66451316d88 100644
--- a/ibis/backends/bigquery/tests/unit/test_compiler.py
+++ b/ibis/backends/bigquery/tests/unit/test_compiler.py
@@ -13,7 +13,7 @@
 import ibis.expr.datatypes as dt
 import ibis.expr.operations as ops
 from ibis import _
-from ibis.backends.bigquery.compiler import BigQueryCompiler
+from ibis.backends.sql.compilers import BigQueryCompiler
 from ibis.common.annotations import ValidationError
 
 to_sql = ibis.bigquery.compile
diff --git a/ibis/backends/clickhouse/__init__.py b/ibis/backends/clickhouse/__init__.py
index 84d59b4fa7d6..b934708d2489 100644
--- a/ibis/backends/clickhouse/__init__.py
+++ b/ibis/backends/clickhouse/__init__.py
@@ -24,10 +24,10 @@
 import ibis.expr.types as ir
 from ibis import util
 from ibis.backends import BaseBackend, CanCreateDatabase
-from ibis.backends.clickhouse.compiler import ClickHouseCompiler
 from ibis.backends.clickhouse.converter import ClickHousePandasData
 from ibis.backends.sql import SQLBackend
-from ibis.backends.sql.compiler import C
+from ibis.backends.sql.compilers import ClickHouseCompiler
+from ibis.backends.sql.compilers.base import C
 
 if TYPE_CHECKING:
     from collections.abc import Iterable, Iterator, Mapping
diff --git a/ibis/backends/datafusion/__init__.py b/ibis/backends/datafusion/__init__.py
index ebc860851c5e..1e06ead4b17e 100644
--- a/ibis/backends/datafusion/__init__.py
+++ b/ibis/backends/datafusion/__init__.py
@@ -20,9 +20,9 @@
 import ibis.expr.schema as sch
 import ibis.expr.types as ir
 from ibis.backends import CanCreateCatalog, CanCreateDatabase, CanCreateSchema, NoUrl
-from ibis.backends.datafusion.compiler import DataFusionCompiler
 from ibis.backends.sql import SQLBackend
-from ibis.backends.sql.compiler import C
+from ibis.backends.sql.compilers import DataFusionCompiler
+from ibis.backends.sql.compilers.base import C
 from ibis.common.dispatch import lazy_singledispatch
 from ibis.expr.operations.udf import InputType
 from ibis.formats.pyarrow import PyArrowSchema, PyArrowType
diff --git a/ibis/backends/druid/__init__.py b/ibis/backends/druid/__init__.py
index 9dd44684e443..4c737e001ded 100644
--- a/ibis/backends/druid/__init__.py
+++ b/ibis/backends/druid/__init__.py
@@ -12,9 +12,9 @@
 
 import ibis.expr.datatypes as dt
 import ibis.expr.schema as sch
-from ibis.backends.druid.compiler import DruidCompiler
 from ibis.backends.sql import SQLBackend
-from ibis.backends.sql.compiler import STAR
+from ibis.backends.sql.compilers import DruidCompiler
+from ibis.backends.sql.compilers.base import STAR
 from ibis.backends.sql.datatypes import DruidType
 
 if TYPE_CHECKING:
diff --git a/ibis/backends/duckdb/__init__.py b/ibis/backends/duckdb/__init__.py
index ad9d21006f07..8f23c3bce534 100644
--- a/ibis/backends/duckdb/__init__.py
+++ b/ibis/backends/duckdb/__init__.py
@@ -24,10 +24,10 @@
 import ibis.expr.types as ir
 from ibis import util
 from ibis.backends import CanCreateDatabase, CanCreateSchema, UrlFromPath
-from ibis.backends.duckdb.compiler import DuckDBCompiler
 from ibis.backends.duckdb.converter import DuckDBPandasData
 from ibis.backends.sql import SQLBackend
-from ibis.backends.sql.compiler import STAR, C
+from ibis.backends.sql.compilers import DuckDBCompiler
+from ibis.backends.sql.compilers.base import STAR, C
 from ibis.common.dispatch import lazy_singledispatch
 from ibis.expr.operations.udf import InputType
 from ibis.util import deprecated
diff --git a/ibis/backends/exasol/__init__.py b/ibis/backends/exasol/__init__.py
index 0e781f898ef6..e7c91383e2ca 100644
--- a/ibis/backends/exasol/__init__.py
+++ b/ibis/backends/exasol/__init__.py
@@ -19,9 +19,9 @@
 import ibis.expr.types as ir
 from ibis import util
 from ibis.backends import CanCreateDatabase, CanCreateSchema
-from ibis.backends.exasol.compiler import ExasolCompiler
 from ibis.backends.sql import SQLBackend
-from ibis.backends.sql.compiler import STAR, C
+from ibis.backends.sql.compilers import ExasolCompiler
+from ibis.backends.sql.compilers.base import STAR, C
 
 if TYPE_CHECKING:
     from collections.abc import Iterable, Mapping
diff --git a/ibis/backends/flink/__init__.py b/ibis/backends/flink/__init__.py
index e0b58e34cc15..69059cba9c90 100644
--- a/ibis/backends/flink/__init__.py
+++ b/ibis/backends/flink/__init__.py
@@ -11,7 +11,6 @@
 import ibis.expr.schema as sch
 import ibis.expr.types as ir
 from ibis.backends import CanCreateDatabase, NoUrl
-from ibis.backends.flink.compiler import FlinkCompiler
 from ibis.backends.flink.ddl import (
     CreateDatabase,
     CreateTableWithSchema,
@@ -22,6 +21,7 @@
     RenameTable,
 )
 from ibis.backends.sql import SQLBackend
+from ibis.backends.sql.compilers import FlinkCompiler
 from ibis.backends.tests.errors import Py4JJavaError
 from ibis.expr.operations.udf import InputType
 from ibis.util import gen_name
diff --git a/ibis/backends/impala/__init__.py b/ibis/backends/impala/__init__.py
index 8f492c2c8f3d..44d9759d2501 100644
--- a/ibis/backends/impala/__init__.py
+++ b/ibis/backends/impala/__init__.py
@@ -20,7 +20,6 @@
 from ibis import util
 from ibis.backends.impala import ddl, udf
 from ibis.backends.impala.client import ImpalaTable
-from ibis.backends.impala.compiler import ImpalaCompiler
 from ibis.backends.impala.ddl import (
     CTAS,
     CreateDatabase,
@@ -39,6 +38,7 @@
     wrap_udf,
 )
 from ibis.backends.sql import SQLBackend
+from ibis.backends.sql.compilers import ImpalaCompiler
 
 if TYPE_CHECKING:
     from collections.abc import Mapping
diff --git a/ibis/backends/impala/tests/mocks.py b/ibis/backends/impala/tests/mocks.py
index 2798c36a4b64..5c847a1fac49 100644
--- a/ibis/backends/impala/tests/mocks.py
+++ b/ibis/backends/impala/tests/mocks.py
@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-from ibis.backends.impala.compiler import ImpalaCompiler
+from ibis.backends.sql.compilers import ImpalaCompiler
 from ibis.tests.expr.mocks import MockBackend
 
 
diff --git a/ibis/backends/mssql/__init__.py b/ibis/backends/mssql/__init__.py
index 4afc52f3341a..a1adff0fba97 100644
--- a/ibis/backends/mssql/__init__.py
+++ b/ibis/backends/mssql/__init__.py
@@ -21,9 +21,9 @@
 import ibis.expr.types as ir
 from ibis import util
 from ibis.backends import CanCreateCatalog, CanCreateDatabase, CanCreateSchema, NoUrl
-from ibis.backends.mssql.compiler import MSSQLCompiler
 from ibis.backends.sql import SQLBackend
-from ibis.backends.sql.compiler import STAR, C
+from ibis.backends.sql.compilers import MSSQLCompiler
+from ibis.backends.sql.compilers.base import STAR, C
 
 if TYPE_CHECKING:
     from collections.abc import Iterable, Mapping
diff --git a/ibis/backends/mysql/__init__.py b/ibis/backends/mysql/__init__.py
index f255dd46e9b9..0fbd6eb48ad0 100644
--- a/ibis/backends/mysql/__init__.py
+++ b/ibis/backends/mysql/__init__.py
@@ -22,10 +22,10 @@
 import ibis.expr.types as ir
 from ibis import util
 from ibis.backends import CanCreateDatabase
-from ibis.backends.mysql.compiler import MySQLCompiler
 from ibis.backends.mysql.datatypes import _type_from_cursor_info
 from ibis.backends.sql import SQLBackend
-from ibis.backends.sql.compiler import STAR, TRUE, C
+from ibis.backends.sql.compilers import MySQLCompiler
+from ibis.backends.sql.compilers.base import STAR, TRUE, C
 
 if TYPE_CHECKING:
     from collections.abc import Mapping
diff --git a/ibis/backends/oracle/__init__.py b/ibis/backends/oracle/__init__.py
index bce452dc44cb..f3f4e22fb62d 100644
--- a/ibis/backends/oracle/__init__.py
+++ b/ibis/backends/oracle/__init__.py
@@ -24,9 +24,9 @@
 import ibis.expr.types as ir
 from ibis import util
 from ibis.backends import CanListDatabase, CanListSchema
-from ibis.backends.oracle.compiler import OracleCompiler
 from ibis.backends.sql import STAR, SQLBackend
-from ibis.backends.sql.compiler import C
+from ibis.backends.sql.compilers import OracleCompiler
+from ibis.backends.sql.compilers.base import C
 
 if TYPE_CHECKING:
     from urllib.parse import ParseResult
diff --git a/ibis/backends/postgres/__init__.py b/ibis/backends/postgres/__init__.py
index d12e0a362d55..39797ca982d6 100644
--- a/ibis/backends/postgres/__init__.py
+++ b/ibis/backends/postgres/__init__.py
@@ -26,9 +26,9 @@
 import ibis.expr.types as ir
 from ibis import util
 from ibis.backends import CanCreateDatabase, CanCreateSchema, CanListCatalog
-from ibis.backends.postgres.compiler import PostgresCompiler
 from ibis.backends.sql import SQLBackend
-from ibis.backends.sql.compiler import TRUE, C, ColGen, F
+from ibis.backends.sql.compilers import PostgresCompiler
+from ibis.backends.sql.compilers.base import TRUE, C, ColGen, F
 from ibis.common.exceptions import InvalidDecoratorError
 
 if TYPE_CHECKING:
diff --git a/ibis/backends/pyspark/__init__.py b/ibis/backends/pyspark/__init__.py
index ee4f74f6a29f..1705e8c720db 100644
--- a/ibis/backends/pyspark/__init__.py
+++ b/ibis/backends/pyspark/__init__.py
@@ -21,10 +21,10 @@
 import ibis.expr.types as ir
 from ibis import util
 from ibis.backends import CanCreateDatabase, CanListCatalog
-from ibis.backends.pyspark.compiler import PySparkCompiler
 from ibis.backends.pyspark.converter import PySparkPandasData
 from ibis.backends.pyspark.datatypes import PySparkSchema, PySparkType
 from ibis.backends.sql import SQLBackend
+from ibis.backends.sql.compilers import PySparkCompiler
 from ibis.expr.operations.udf import InputType
 from ibis.legacy.udf.vectorized import _coerce_to_series
 from ibis.util import deprecated
diff --git a/ibis/backends/risingwave/__init__.py b/ibis/backends/risingwave/__init__.py
index f90f22de0f48..960ab9522b84 100644
--- a/ibis/backends/risingwave/__init__.py
+++ b/ibis/backends/risingwave/__init__.py
@@ -1,4 +1,4 @@
-"""Risingwave backend."""
+"""RisingWave backend."""
 
 from __future__ import annotations
 
@@ -16,7 +16,7 @@
 import ibis.expr.types as ir
 from ibis import util
 from ibis.backends.postgres import Backend as PostgresBackend
-from ibis.backends.risingwave.compiler import RisingwaveCompiler
+from ibis.backends.sql.compilers import RisingWaveCompiler
 from ibis.util import experimental
 
 if TYPE_CHECKING:
@@ -45,7 +45,7 @@ def format_properties(props):
 
 class Backend(PostgresBackend):
     name = "risingwave"
-    compiler = RisingwaveCompiler()
+    compiler = RisingWaveCompiler()
     supports_python_udfs = False
 
     def do_connect(
@@ -88,7 +88,7 @@ def do_connect(
         [...]
         >>> t = con.table("functional_alltypes")
         >>> t
-        RisingwaveTable[table]
+        RisingWaveTable[table]
           name: functional_alltypes
           schema:
             id : int32
@@ -140,7 +140,7 @@ def create_table(
         encode_format: str | None = None,
         encode_properties: dict | None = None,
     ):
-        """Create a table in Risingwave.
+        """Create a table in RisingWave.
 
         Parameters
         ----------
diff --git a/ibis/backends/risingwave/tests/test_streaming.py b/ibis/backends/risingwave/tests/test_streaming.py
index 344788c51e2f..d3d7bf31717c 100644
--- a/ibis/backends/risingwave/tests/test_streaming.py
+++ b/ibis/backends/risingwave/tests/test_streaming.py
@@ -27,7 +27,7 @@ def test_simple_mv(con, alltypes, column):
 def test_mv_on_simple_source(con):
     sc_name = util.gen_name("simple_sc")
     schema = ibis.schema([("v", "int32")])
-    # use Risingwave's internal data generator to imitate a upstream data source
+    # use RisingWave's internal data generator to imitate a upstream data source
     connector_properties = {
         "connector": "datagen",
         "fields.v.kind": "sequence",
@@ -58,7 +58,7 @@ def test_mv_on_simple_source(con):
 def test_mv_on_table_with_connector(con):
     tblc_name = util.gen_name("simple_table_with_connector")
     schema = ibis.schema([("v", "int32")])
-    # use Risingwave's internal data generator to imitate a upstream data source
+    # use RisingWave's internal data generator to imitate a upstream data source
     connector_properties = {
         "connector": "datagen",
         "fields.v.kind": "sequence",
diff --git a/ibis/backends/snowflake/__init__.py b/ibis/backends/snowflake/__init__.py
index d3594e38950b..ea4b64407ab5 100644
--- a/ibis/backends/snowflake/__init__.py
+++ b/ibis/backends/snowflake/__init__.py
@@ -32,10 +32,10 @@
 import ibis.expr.types as ir
 from ibis import util
 from ibis.backends import CanCreateCatalog, CanCreateDatabase, CanCreateSchema
-from ibis.backends.snowflake.compiler import SnowflakeCompiler
 from ibis.backends.snowflake.converter import SnowflakePandasData
 from ibis.backends.sql import SQLBackend
-from ibis.backends.sql.compiler import STAR
+from ibis.backends.sql.compilers import SnowflakeCompiler
+from ibis.backends.sql.compilers.base import STAR
 from ibis.backends.sql.datatypes import SnowflakeType
 
 if TYPE_CHECKING:
diff --git a/ibis/backends/sql/__init__.py b/ibis/backends/sql/__init__.py
index e2d4389c8661..a8356a694547 100644
--- a/ibis/backends/sql/__init__.py
+++ b/ibis/backends/sql/__init__.py
@@ -14,7 +14,7 @@
 import ibis.expr.types as ir
 from ibis import util
 from ibis.backends import BaseBackend
-from ibis.backends.sql.compiler import STAR
+from ibis.backends.sql.compilers.base import STAR
 
 if TYPE_CHECKING:
     from collections.abc import Iterable, Mapping
@@ -22,7 +22,7 @@
     import pandas as pd
     import pyarrow as pa
 
-    from ibis.backends.sql.compiler import SQLGlotCompiler
+    from ibis.backends.sql.compilers.base import SQLGlotCompiler
     from ibis.expr.schema import SchemaLike
 
 
diff --git a/ibis/backends/sql/compilers/__init__.py b/ibis/backends/sql/compilers/__init__.py
new file mode 100644
index 000000000000..d2105ed00279
--- /dev/null
+++ b/ibis/backends/sql/compilers/__init__.py
@@ -0,0 +1,39 @@
+from __future__ import annotations
+
+__all__ = [
+    "BigQueryCompiler",
+    "ClickHouseCompiler",
+    "DataFusionCompiler",
+    "DruidCompiler",
+    "DuckDBCompiler",
+    "ExasolCompiler",
+    "FlinkCompiler",
+    "ImpalaCompiler",
+    "MSSQLCompiler",
+    "MySQLCompiler",
+    "OracleCompiler",
+    "PostgresCompiler",
+    "PySparkCompiler",
+    "RisingWaveCompiler",
+    "SnowflakeCompiler",
+    "SQLiteCompiler",
+    "TrinoCompiler",
+]
+
+from ibis.backends.sql.compilers.bigquery import BigQueryCompiler
+from ibis.backends.sql.compilers.clickhouse import ClickHouseCompiler
+from ibis.backends.sql.compilers.datafusion import DataFusionCompiler
+from ibis.backends.sql.compilers.druid import DruidCompiler
+from ibis.backends.sql.compilers.duckdb import DuckDBCompiler
+from ibis.backends.sql.compilers.exasol import ExasolCompiler
+from ibis.backends.sql.compilers.flink import FlinkCompiler
+from ibis.backends.sql.compilers.impala import ImpalaCompiler
+from ibis.backends.sql.compilers.mssql import MSSQLCompiler
+from ibis.backends.sql.compilers.mysql import MySQLCompiler
+from ibis.backends.sql.compilers.oracle import OracleCompiler
+from ibis.backends.sql.compilers.postgres import PostgresCompiler
+from ibis.backends.sql.compilers.pyspark import PySparkCompiler
+from ibis.backends.sql.compilers.risingwave import RisingWaveCompiler
+from ibis.backends.sql.compilers.snowflake import SnowflakeCompiler
+from ibis.backends.sql.compilers.sqlite import SQLiteCompiler
+from ibis.backends.sql.compilers.trino import TrinoCompiler
diff --git a/ibis/backends/sql/compiler.py b/ibis/backends/sql/compilers/base.py
similarity index 100%
rename from ibis/backends/sql/compiler.py
rename to ibis/backends/sql/compilers/base.py
diff --git a/ibis/backends/bigquery/compiler.py b/ibis/backends/sql/compilers/bigquery.py
similarity index 99%
rename from ibis/backends/bigquery/compiler.py
rename to ibis/backends/sql/compilers/bigquery.py
index 2466922f6032..10c405492c9b 100644
--- a/ibis/backends/bigquery/compiler.py
+++ b/ibis/backends/sql/compilers/bigquery.py
@@ -12,7 +12,7 @@
 import ibis.expr.datatypes as dt
 import ibis.expr.operations as ops
 from ibis import util
-from ibis.backends.sql.compiler import NULL, STAR, SQLGlotCompiler
+from ibis.backends.sql.compilers.base import NULL, STAR, SQLGlotCompiler
 from ibis.backends.sql.datatypes import BigQueryType, BigQueryUDFType
 from ibis.backends.sql.rewrites import (
     exclude_unsupported_window_frame_from_ops,
diff --git a/ibis/backends/clickhouse/compiler.py b/ibis/backends/sql/compilers/clickhouse.py
similarity index 99%
rename from ibis/backends/clickhouse/compiler.py
rename to ibis/backends/sql/compilers/clickhouse.py
index 760452924b4d..743bd70ad398 100644
--- a/ibis/backends/clickhouse/compiler.py
+++ b/ibis/backends/sql/compilers/clickhouse.py
@@ -11,7 +11,7 @@
 import ibis.expr.datatypes as dt
 import ibis.expr.operations as ops
 from ibis import util
-from ibis.backends.sql.compiler import NULL, STAR, AggGen, SQLGlotCompiler
+from ibis.backends.sql.compilers.base import NULL, STAR, AggGen, SQLGlotCompiler
 from ibis.backends.sql.datatypes import ClickHouseType
 from ibis.backends.sql.dialects import ClickHouse
 
diff --git a/ibis/backends/datafusion/compiler.py b/ibis/backends/sql/compilers/datafusion.py
similarity index 99%
rename from ibis/backends/datafusion/compiler.py
rename to ibis/backends/sql/compilers/datafusion.py
index e710e36d2165..fda582f88aee 100644
--- a/ibis/backends/datafusion/compiler.py
+++ b/ibis/backends/sql/compilers/datafusion.py
@@ -11,13 +11,12 @@
 import ibis.common.exceptions as com
 import ibis.expr.datatypes as dt
 import ibis.expr.operations as ops
-from ibis.backends.sql.compiler import FALSE, NULL, STAR, AggGen, SQLGlotCompiler
+from ibis.backends.sql.compilers.base import FALSE, NULL, STAR, AggGen, SQLGlotCompiler
 from ibis.backends.sql.datatypes import DataFusionType
 from ibis.backends.sql.dialects import DataFusion
 from ibis.backends.sql.rewrites import exclude_nulls_from_array_collect
 from ibis.common.temporal import IntervalUnit, TimestampUnit
 from ibis.expr.operations.udf import InputType
-from ibis.formats.pyarrow import PyArrowType
 
 
 class DataFusionCompiler(SQLGlotCompiler):
@@ -136,6 +135,8 @@ def visit_Cast(self, op, *, arg, to):
         if to.is_timestamp():
             return self._to_timestamp(arg, to)
         if to.is_decimal():
+            from ibis.formats.pyarrow import PyArrowType
+
             return self.f.arrow_cast(arg, f"{PyArrowType.from_ibis(to)}".capitalize())
         return self.cast(arg, to)
 
diff --git a/ibis/backends/druid/compiler.py b/ibis/backends/sql/compilers/druid.py
similarity index 98%
rename from ibis/backends/druid/compiler.py
rename to ibis/backends/sql/compilers/druid.py
index 19a81c6d07ad..56196875d9f1 100644
--- a/ibis/backends/druid/compiler.py
+++ b/ibis/backends/sql/compilers/druid.py
@@ -6,7 +6,7 @@
 
 import ibis.expr.datatypes as dt
 import ibis.expr.operations as ops
-from ibis.backends.sql.compiler import NULL, AggGen, SQLGlotCompiler
+from ibis.backends.sql.compilers.base import NULL, AggGen, SQLGlotCompiler
 from ibis.backends.sql.datatypes import DruidType
 from ibis.backends.sql.dialects import Druid
 
diff --git a/ibis/backends/duckdb/compiler.py b/ibis/backends/sql/compilers/duckdb.py
similarity index 99%
rename from ibis/backends/duckdb/compiler.py
rename to ibis/backends/sql/compilers/duckdb.py
index f2c38a17dd8c..7adcf362e3b9 100644
--- a/ibis/backends/duckdb/compiler.py
+++ b/ibis/backends/sql/compilers/duckdb.py
@@ -5,13 +5,12 @@
 
 import sqlglot as sg
 import sqlglot.expressions as sge
-from public import public
 from sqlglot.dialects import DuckDB
 
 import ibis.common.exceptions as com
 import ibis.expr.datatypes as dt
 import ibis.expr.operations as ops
-from ibis.backends.sql.compiler import NULL, STAR, AggGen, SQLGlotCompiler
+from ibis.backends.sql.compilers.base import NULL, STAR, AggGen, SQLGlotCompiler
 from ibis.backends.sql.datatypes import DuckDBType
 from ibis.backends.sql.rewrites import exclude_nulls_from_array_collect
 from ibis.util import gen_name
@@ -28,7 +27,6 @@
 }
 
 
-@public
 class DuckDBCompiler(SQLGlotCompiler):
     __slots__ = ()
 
diff --git a/ibis/backends/exasol/compiler.py b/ibis/backends/sql/compilers/exasol.py
similarity index 99%
rename from ibis/backends/exasol/compiler.py
rename to ibis/backends/sql/compilers/exasol.py
index c752f9f9068d..e5e67c1d5e82 100644
--- a/ibis/backends/exasol/compiler.py
+++ b/ibis/backends/sql/compilers/exasol.py
@@ -6,7 +6,7 @@
 import ibis.common.exceptions as com
 import ibis.expr.datatypes as dt
 import ibis.expr.operations as ops
-from ibis.backends.sql.compiler import NULL, SQLGlotCompiler
+from ibis.backends.sql.compilers.base import NULL, SQLGlotCompiler
 from ibis.backends.sql.datatypes import ExasolType
 from ibis.backends.sql.dialects import Exasol
 from ibis.backends.sql.rewrites import (
diff --git a/ibis/backends/flink/compiler.py b/ibis/backends/sql/compilers/flink.py
similarity index 99%
rename from ibis/backends/flink/compiler.py
rename to ibis/backends/sql/compilers/flink.py
index 1f894487788e..1bdf6cae9ebf 100644
--- a/ibis/backends/flink/compiler.py
+++ b/ibis/backends/sql/compilers/flink.py
@@ -8,7 +8,7 @@
 import ibis.common.exceptions as com
 import ibis.expr.datatypes as dt
 import ibis.expr.operations as ops
-from ibis.backends.sql.compiler import NULL, STAR, AggGen, SQLGlotCompiler
+from ibis.backends.sql.compilers.base import NULL, STAR, AggGen, SQLGlotCompiler
 from ibis.backends.sql.datatypes import FlinkType
 from ibis.backends.sql.dialects import Flink
 from ibis.backends.sql.rewrites import (
diff --git a/ibis/backends/impala/compiler.py b/ibis/backends/sql/compilers/impala.py
similarity index 98%
rename from ibis/backends/impala/compiler.py
rename to ibis/backends/sql/compilers/impala.py
index 49a07f761606..6288865d2ec6 100644
--- a/ibis/backends/impala/compiler.py
+++ b/ibis/backends/sql/compilers/impala.py
@@ -7,12 +7,10 @@
 import ibis.expr.datatypes as dt
 import ibis.expr.operations as ops
 from ibis import util
-from ibis.backends.sql.compiler import NULL, STAR, SQLGlotCompiler
+from ibis.backends.sql.compilers.base import NULL, STAR, SQLGlotCompiler
 from ibis.backends.sql.datatypes import ImpalaType
 from ibis.backends.sql.dialects import Impala
-from ibis.backends.sql.rewrites import (
-    rewrite_empty_order_by_window,
-)
+from ibis.backends.sql.rewrites import rewrite_empty_order_by_window
 
 
 class ImpalaCompiler(SQLGlotCompiler):
diff --git a/ibis/backends/mssql/compiler.py b/ibis/backends/sql/compilers/mssql.py
similarity index 99%
rename from ibis/backends/mssql/compiler.py
rename to ibis/backends/sql/compilers/mssql.py
index 3f40ce1528b2..4da9b31e2c5f 100644
--- a/ibis/backends/mssql/compiler.py
+++ b/ibis/backends/sql/compilers/mssql.py
@@ -4,12 +4,11 @@
 
 import sqlglot as sg
 import sqlglot.expressions as sge
-from public import public
 
 import ibis.common.exceptions as com
 import ibis.expr.datatypes as dt
 import ibis.expr.operations as ops
-from ibis.backends.sql.compiler import (
+from ibis.backends.sql.compilers.base import (
     FALSE,
     NULL,
     STAR,
@@ -50,7 +49,6 @@ def rewrite_rows_range_order_by_window(_, **kwargs):
     return _.copy(order_by=(_.func.arg,))
 
 
-@public
 class MSSQLCompiler(SQLGlotCompiler):
     __slots__ = ()
 
diff --git a/ibis/backends/mysql/compiler.py b/ibis/backends/sql/compilers/mysql.py
similarity index 99%
rename from ibis/backends/mysql/compiler.py
rename to ibis/backends/sql/compilers/mysql.py
index f4ce57ec931f..95f262eebfc5 100644
--- a/ibis/backends/mysql/compiler.py
+++ b/ibis/backends/sql/compilers/mysql.py
@@ -5,12 +5,11 @@
 
 import sqlglot as sg
 import sqlglot.expressions as sge
-from public import public
 
 import ibis.common.exceptions as com
 import ibis.expr.datatypes as dt
 import ibis.expr.operations as ops
-from ibis.backends.sql.compiler import NULL, STAR, SQLGlotCompiler
+from ibis.backends.sql.compilers.base import NULL, STAR, SQLGlotCompiler
 from ibis.backends.sql.datatypes import MySQLType
 from ibis.backends.sql.dialects import MySQL
 from ibis.backends.sql.rewrites import (
@@ -41,7 +40,6 @@ def rewrite_limit(_, **kwargs):
     return _
 
 
-@public
 class MySQLCompiler(SQLGlotCompiler):
     __slots__ = ()
 
diff --git a/ibis/backends/oracle/compiler.py b/ibis/backends/sql/compilers/oracle.py
similarity index 99%
rename from ibis/backends/oracle/compiler.py
rename to ibis/backends/sql/compilers/oracle.py
index 71fe551af81c..e952b71c047f 100644
--- a/ibis/backends/oracle/compiler.py
+++ b/ibis/backends/sql/compilers/oracle.py
@@ -3,11 +3,10 @@
 import sqlglot as sg
 import sqlglot.expressions as sge
 import toolz
-from public import public
 
 import ibis.common.exceptions as com
 import ibis.expr.operations as ops
-from ibis.backends.sql.compiler import NULL, STAR, SQLGlotCompiler
+from ibis.backends.sql.compilers.base import NULL, STAR, SQLGlotCompiler
 from ibis.backends.sql.datatypes import OracleType
 from ibis.backends.sql.dialects import Oracle
 from ibis.backends.sql.rewrites import (
@@ -21,7 +20,6 @@
 )
 
 
-@public
 class OracleCompiler(SQLGlotCompiler):
     __slots__ = ()
 
diff --git a/ibis/backends/postgres/compiler.py b/ibis/backends/sql/compilers/postgres.py
similarity index 99%
rename from ibis/backends/postgres/compiler.py
rename to ibis/backends/sql/compilers/postgres.py
index cb959d2bd199..e074f9f89c4e 100644
--- a/ibis/backends/postgres/compiler.py
+++ b/ibis/backends/sql/compilers/postgres.py
@@ -5,13 +5,12 @@
 
 import sqlglot as sg
 import sqlglot.expressions as sge
-from public import public
 
 import ibis.common.exceptions as com
 import ibis.expr.datatypes as dt
 import ibis.expr.operations as ops
 import ibis.expr.rules as rlz
-from ibis.backends.sql.compiler import NULL, STAR, AggGen, SQLGlotCompiler
+from ibis.backends.sql.compilers.base import NULL, STAR, AggGen, SQLGlotCompiler
 from ibis.backends.sql.datatypes import PostgresType
 from ibis.backends.sql.dialects import Postgres
 from ibis.backends.sql.rewrites import exclude_nulls_from_array_collect
@@ -22,7 +21,6 @@ class PostgresUDFNode(ops.Value):
     shape = rlz.shape_like("args")
 
 
-@public
 class PostgresCompiler(SQLGlotCompiler):
     __slots__ = ()
 
diff --git a/ibis/backends/pyspark/compiler.py b/ibis/backends/sql/compilers/pyspark.py
similarity index 99%
rename from ibis/backends/pyspark/compiler.py
rename to ibis/backends/sql/compilers/pyspark.py
index 6cbd7f0796a9..b3b8bed250a8 100644
--- a/ibis/backends/pyspark/compiler.py
+++ b/ibis/backends/sql/compilers/pyspark.py
@@ -6,13 +6,12 @@
 
 import sqlglot as sg
 import sqlglot.expressions as sge
-from public import public
 
 import ibis
 import ibis.common.exceptions as com
 import ibis.expr.datatypes as dt
 import ibis.expr.operations as ops
-from ibis.backends.sql.compiler import FALSE, NULL, STAR, SQLGlotCompiler
+from ibis.backends.sql.compilers.base import FALSE, NULL, STAR, SQLGlotCompiler
 from ibis.backends.sql.datatypes import PySparkType
 from ibis.backends.sql.dialects import PySpark
 from ibis.backends.sql.rewrites import FirstValue, LastValue, p
@@ -45,7 +44,6 @@ def offset_to_filter(_):
     return _.copy(parent=rel, offset=0)
 
 
-@public
 class PySparkCompiler(SQLGlotCompiler):
     __slots__ = ()
 
diff --git a/ibis/backends/risingwave/compiler.py b/ibis/backends/sql/compilers/risingwave.py
similarity index 93%
rename from ibis/backends/risingwave/compiler.py
rename to ibis/backends/sql/compilers/risingwave.py
index 052b2c8fdea7..9bc7225a1bd9 100644
--- a/ibis/backends/risingwave/compiler.py
+++ b/ibis/backends/sql/compilers/risingwave.py
@@ -1,20 +1,18 @@
 from __future__ import annotations
 
 import sqlglot.expressions as sge
-from public import public
 
 import ibis.common.exceptions as com
 import ibis.expr.datashape as ds
 import ibis.expr.datatypes as dt
 import ibis.expr.operations as ops
-from ibis.backends.postgres.compiler import PostgresCompiler
-from ibis.backends.sql.compiler import ALL_OPERATIONS
+from ibis.backends.sql.compilers import PostgresCompiler
+from ibis.backends.sql.compilers.base import ALL_OPERATIONS
 from ibis.backends.sql.datatypes import RisingWaveType
 from ibis.backends.sql.dialects import RisingWave
 
 
-@public
-class RisingwaveCompiler(PostgresCompiler):
+class RisingWaveCompiler(PostgresCompiler):
     __slots__ = ()
 
     dialect = RisingWave
diff --git a/ibis/backends/snowflake/compiler.py b/ibis/backends/sql/compilers/snowflake.py
similarity index 99%
rename from ibis/backends/snowflake/compiler.py
rename to ibis/backends/sql/compilers/snowflake.py
index 927a5922f032..c68c677682f3 100644
--- a/ibis/backends/snowflake/compiler.py
+++ b/ibis/backends/sql/compilers/snowflake.py
@@ -5,13 +5,12 @@
 
 import sqlglot as sg
 import sqlglot.expressions as sge
-from public import public
 
 import ibis.common.exceptions as com
 import ibis.expr.datatypes as dt
 import ibis.expr.operations as ops
 from ibis import util
-from ibis.backends.sql.compiler import NULL, STAR, C, FuncGen, SQLGlotCompiler
+from ibis.backends.sql.compilers.base import NULL, STAR, C, FuncGen, SQLGlotCompiler
 from ibis.backends.sql.datatypes import SnowflakeType
 from ibis.backends.sql.dialects import Snowflake
 from ibis.backends.sql.rewrites import (
@@ -27,7 +26,6 @@ class SnowflakeFuncGen(FuncGen):
     udf = FuncGen(namespace="ibis_udfs.public")
 
 
-@public
 class SnowflakeCompiler(SQLGlotCompiler):
     __slots__ = ()
 
diff --git a/ibis/backends/sqlite/compiler.py b/ibis/backends/sql/compilers/sqlite.py
similarity index 99%
rename from ibis/backends/sqlite/compiler.py
rename to ibis/backends/sql/compilers/sqlite.py
index 805c7dfb5b47..2c12cd9d97eb 100644
--- a/ibis/backends/sqlite/compiler.py
+++ b/ibis/backends/sql/compilers/sqlite.py
@@ -4,18 +4,16 @@
 
 import sqlglot as sg
 import sqlglot.expressions as sge
-from public import public
 
 import ibis.common.exceptions as com
 import ibis.expr.datatypes as dt
 import ibis.expr.operations as ops
-from ibis.backends.sql.compiler import NULL, AggGen, SQLGlotCompiler
+from ibis.backends.sql.compilers.base import NULL, AggGen, SQLGlotCompiler
 from ibis.backends.sql.datatypes import SQLiteType
 from ibis.backends.sql.dialects import SQLite
 from ibis.common.temporal import DateUnit, IntervalUnit
 
 
-@public
 class SQLiteCompiler(SQLGlotCompiler):
     __slots__ = ()
 
diff --git a/ibis/backends/trino/compiler.py b/ibis/backends/sql/compilers/trino.py
similarity index 99%
rename from ibis/backends/trino/compiler.py
rename to ibis/backends/sql/compilers/trino.py
index f98aa48b4ab3..f15d57ee7104 100644
--- a/ibis/backends/trino/compiler.py
+++ b/ibis/backends/sql/compilers/trino.py
@@ -10,7 +10,7 @@
 import ibis.common.exceptions as com
 import ibis.expr.datatypes as dt
 import ibis.expr.operations as ops
-from ibis.backends.sql.compiler import FALSE, NULL, STAR, AggGen, SQLGlotCompiler
+from ibis.backends.sql.compilers.base import FALSE, NULL, STAR, AggGen, SQLGlotCompiler
 from ibis.backends.sql.datatypes import TrinoType
 from ibis.backends.sql.dialects import Trino
 from ibis.backends.sql.rewrites import (
diff --git a/ibis/backends/sqlite/__init__.py b/ibis/backends/sqlite/__init__.py
index cde03ac18dca..fddcc0ee5543 100644
--- a/ibis/backends/sqlite/__init__.py
+++ b/ibis/backends/sqlite/__init__.py
@@ -17,8 +17,8 @@
 from ibis import util
 from ibis.backends import UrlFromPath
 from ibis.backends.sql import SQLBackend
-from ibis.backends.sql.compiler import C, F
-from ibis.backends.sqlite.compiler import SQLiteCompiler
+from ibis.backends.sql.compilers import SQLiteCompiler
+from ibis.backends.sql.compilers.base import C, F
 from ibis.backends.sqlite.converter import SQLitePandasData
 from ibis.backends.sqlite.udf import ignore_nulls, register_all
 
diff --git a/ibis/backends/tests/test_join.py b/ibis/backends/tests/test_join.py
index a02233275b88..0ec26b6e4cae 100644
--- a/ibis/backends/tests/test_join.py
+++ b/ibis/backends/tests/test_join.py
@@ -175,7 +175,7 @@ def test_mutate_then_join_no_column_overlap(batting, awards_players):
 @pytest.mark.notimpl(["druid"])
 @pytest.mark.notyet(["dask"], reason="dask doesn't support descending order by")
 @pytest.mark.notyet(["flink"], reason="Flink doesn't support semi joins")
-@pytest.mark.skip("risingwave")  # TODO(Kexiang): Risingwave's bug, investigating
+@pytest.mark.skip("risingwave")  # TODO(Kexiang): RisingWave's bug, investigating
 @pytest.mark.parametrize(
     "func",
     [
diff --git a/ibis/backends/trino/__init__.py b/ibis/backends/trino/__init__.py
index 1201d2a34775..38d1e8171253 100644
--- a/ibis/backends/trino/__init__.py
+++ b/ibis/backends/trino/__init__.py
@@ -20,8 +20,8 @@
 from ibis import util
 from ibis.backends import CanCreateDatabase, CanCreateSchema, CanListCatalog
 from ibis.backends.sql import SQLBackend
-from ibis.backends.sql.compiler import C
-from ibis.backends.trino.compiler import TrinoCompiler
+from ibis.backends.sql.compilers import TrinoCompiler
+from ibis.backends.sql.compilers.base import C
 
 if TYPE_CHECKING:
     from collections.abc import Iterator, Mapping
diff --git a/ibis/backends/trino/tests/conftest.py b/ibis/backends/trino/tests/conftest.py
index 2b4f67ebe437..1bddc3f20895 100644
--- a/ibis/backends/trino/tests/conftest.py
+++ b/ibis/backends/trino/tests/conftest.py
@@ -11,6 +11,7 @@
 import ibis
 import ibis.expr.schema as sch
 from ibis.backends.conftest import TEST_TABLES
+from ibis.backends.sql.datatypes import TrinoType
 from ibis.backends.tests.base import ServiceBackendTest
 
 if TYPE_CHECKING:
@@ -208,7 +209,6 @@ def generate_tpc_tables(suite_name, *, data_dir):
         )
         for path in (data_dir / suite_name).rglob("*.parquet")
     }
-    type_mapper = ibis.backends.trino.compiler.TrinoCompiler.type_mapper
     return (
         sge.Create(
             kind="TABLE",
@@ -218,7 +218,7 @@ def generate_tpc_tables(suite_name, *, data_dir):
                 expressions=[
                     sge.ColumnDef(
                         this=sg.to_identifier(col, quoted=True),
-                        kind=type_mapper.from_ibis(dtype),
+                        kind=TrinoType.from_ibis(dtype),
                     )
                     for col, dtype in schema.items()
                 ],
diff --git a/pyproject.toml b/pyproject.toml
index 505b8bca7cf3..cfaefcc2e040 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -336,7 +336,7 @@ markers = [
   "pandas: Pandas tests",
   "polars: Polars tests",
   "postgres: PostgreSQL tests",
-  "risingwave: Risingwave tests",
+  "risingwave: RisingWave tests",
   "pyspark: PySpark tests",
   "snowflake: Snowflake tests",
   "sqlite: SQLite tests",