feat(dsabstraction): add initial support for SQL abstractions (#1756)

Author: iwysiu

cspell.config.json

@@ -67,6 +67,7 @@
     "PREWHERE",
     "proxying",
     "regexes",
+    "schemads",
     "sdkproxy",
     "shopspring",
     "singlequote",

go.mod

@@ -7,7 +7,7 @@ require (
 	github.com/docker/docker v28.5.2+incompatible
 	github.com/docker/go-units v0.5.0
 	github.com/grafana/grafana-plugin-sdk-go v0.290.1
-	github.com/grafana/sqlds/v5 v5.1.0
+	github.com/grafana/sqlds/v5 v5.1.1
 	github.com/paulmach/orb v0.12.0
 	github.com/pkg/errors v0.9.1
 	github.com/shopspring/decimal v1.4.0
@@ -28,18 +28,29 @@ require (
 	github.com/containerd/platforms v0.2.1 // indirect
 	github.com/distribution/reference v0.6.0 // indirect
 	github.com/ebitengine/purego v0.10.0 // indirect
+	github.com/emicklei/go-restful/v3 v3.11.0 // indirect
 	github.com/felixge/httpsnoop v1.0.4 // indirect
 	github.com/fsnotify/fsnotify v1.6.0 // indirect
+	github.com/go-openapi/jsonpointer v0.22.4 // indirect
+	github.com/go-openapi/jsonreference v0.21.4 // indirect
+	github.com/go-openapi/swag v0.23.0 // indirect
+	github.com/go-openapi/swag/jsonname v0.25.4 // indirect
 	github.com/goccy/go-json v0.10.5 // indirect
 	github.com/gogo/googleapis v1.4.1 // indirect
+	github.com/google/gnostic-models v0.7.0 // indirect
 	github.com/grafana/dataplane/sdata v0.0.9 // indirect
 	github.com/grafana/otel-profiling-go v0.5.1 // indirect
 	github.com/grafana/pyroscope-go/godeltaprof v0.1.9 // indirect
 	github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.1.0 // indirect
 	github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.3.3 // indirect
+	github.com/huandu/go-clone v1.7.3 // indirect
+	github.com/huandu/go-sqlbuilder v1.39.1 // indirect
+	github.com/huandu/xstrings v1.4.0 // indirect
 	github.com/jaegertracing/jaeger-idl v0.6.0 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
 	github.com/jszwedko/go-datemath v0.1.1-0.20230526204004-640a500621d6 // indirect
 	github.com/klauspost/cpuid/v2 v2.3.0 // indirect
+	github.com/mailru/easyjson v0.7.7 // indirect
 	github.com/moby/docker-image-spec v1.3.1 // indirect
 	github.com/moby/go-archive v0.2.0 // indirect
 	github.com/moby/sys/user v0.4.0 // indirect
@@ -59,6 +70,8 @@ require (
 	golang.org/x/sync v0.20.0 // indirect
 	golang.org/x/telemetry v0.0.0-20260209163413-e7419c687ee4 // indirect
 	golang.org/x/time v0.9.0 // indirect
+	k8s.io/kube-openapi v0.0.0-20260127142750-a19766b6e2d4 // indirect
+	sigs.k8s.io/randfill v1.0.0 // indirect
 )
 
 require (
@@ -88,6 +101,7 @@ require (
 	github.com/google/flatbuffers v25.12.19+incompatible // indirect
 	github.com/google/go-cmp v0.7.0 // indirect
 	github.com/google/uuid v1.6.0 // indirect
+	github.com/grafana/schemads v0.0.6
 	github.com/grpc-ecosystem/grpc-gateway/v2 v2.28.0 // indirect
 	github.com/hashicorp/go-hclog v1.6.3 // indirect
 	github.com/hashicorp/go-plugin v1.7.0 // indirect

go.sum

@@ -72,6 +72,8 @@ github.com/ebitengine/purego v0.10.0 h1:QIw4xfpWT6GWTzaW5XEKy3HXoqrJGx1ijYHzTF0/
 github.com/ebitengine/purego v0.10.0/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
 github.com/elazarl/goproxy v1.8.3 h1:XhiZpzW0NvsGOqSv/F3v4+1F29842yYaJNN+In5Fnuc=
 github.com/elazarl/goproxy v1.8.3/go.mod h1:b5xm6W48AUHNpRTCvlnd0YVh+JafCCtsLsJZvvNTz+E=
+github.com/emicklei/go-restful/v3 v3.11.0 h1:rAQeMHw1c7zTmncogyy8VvRZwtkmkZ4FxERmMY4rD+g=
+github.com/emicklei/go-restful/v3 v3.11.0/go.mod h1:6n3XBCmQQb25CM2LCACGz8ukIrRry+4bhvbpWn3mrbc=
 github.com/fatih/color v1.13.0/go.mod h1:kLAiJbzzSOZDVNGyDpeOxJ47H46qBXwg5ILebYFFOfk=
 github.com/fatih/color v1.18.0 h1:S8gINlzdQ840/4pfAwic/ZE0djQEH3wM94VfqLTZcOM=
 github.com/fatih/color v1.18.0/go.mod h1:4FelSpRwEGDpQ12mAdzqdOukCy4u8WUtOY6lkT/6HfU=
@@ -92,6 +94,16 @@ github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
 github.com/go-ole/go-ole v1.2.6 h1:/Fpf6oFPoeFik9ty7siob0G6Ke8QvQEuVcuChpwXzpY=
 github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
+github.com/go-openapi/jsonpointer v0.22.4 h1:dZtK82WlNpVLDW2jlA1YCiVJFVqkED1MegOUy9kR5T4=
+github.com/go-openapi/jsonpointer v0.22.4/go.mod h1:elX9+UgznpFhgBuaMQ7iu4lvvX1nvNsesQ3oxmYTw80=
+github.com/go-openapi/jsonreference v0.21.4 h1:24qaE2y9bx/q3uRK/qN+TDwbok1NhbSmGjjySRCHtC8=
+github.com/go-openapi/jsonreference v0.21.4/go.mod h1:rIENPTjDbLpzQmQWCj5kKj3ZlmEh+EFVbz3RTUh30/4=
+github.com/go-openapi/swag v0.23.0 h1:vsEVJDUo2hPJ2tu0/Xc+4noaxyEffXNIs3cOULZ+GrE=
+github.com/go-openapi/swag v0.23.0/go.mod h1:esZ8ITTYEsH1V2trKHjAN8Ai7xHb8RV+YSZ577vPjgQ=
+github.com/go-openapi/swag/jsonname v0.25.4 h1:bZH0+MsS03MbnwBXYhuTttMOqk+5KcQ9869Vye1bNHI=
+github.com/go-openapi/swag/jsonname v0.25.4/go.mod h1:GPVEk9CWVhNvWhZgrnvRA6utbAltopbKwDu8mXNUMag=
+github.com/go-openapi/testify/v2 v2.0.2 h1:X999g3jeLcoY8qctY/c/Z8iBHTbwLz7R2WXd6Ub6wls=
+github.com/go-openapi/testify/v2 v2.0.2/go.mod h1:HCPmvFFnheKK2BuwSA0TbbdxJ3I16pjwMkYkP4Ywn54=
 github.com/go-sql-driver/mysql v1.9.3 h1:U/N249h2WzJ3Ukj8SowVFjdtZKfu9vlLZxjPXV1aweo=
 github.com/go-sql-driver/mysql v1.9.3/go.mod h1:qn46aNg1333BRMNU69Lq93t8du/dwxI64Gl8i5p1WMU=
 github.com/goccy/go-json v0.10.5 h1:Fq85nIqj+gXn/S5ahsiTlK3TmC85qgirsdTP/+DeaC4=
@@ -108,6 +120,8 @@ github.com/golang/snappy v1.0.0 h1:Oy607GVXHs7RtbggtPBnr2RmDArIsAefDwvrdWvRhGs=
 github.com/golang/snappy v1.0.0/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/google/flatbuffers v25.12.19+incompatible h1:haMV2JRRJCe1998HeW/p0X9UaMTK6SDo0ffLn2+DbLs=
 github.com/google/flatbuffers v25.12.19+incompatible/go.mod h1:1AeVuKshWv4vARoZatz6mlQ0JxURH0Kv5+zNeJKJCa8=
+github.com/google/gnostic-models v0.7.0 h1:qwTtogB15McXDaNqTZdzPJRHvaVJlAl+HVQnLmJEJxo=
+github.com/google/gnostic-models v0.7.0/go.mod h1:whL5G0m6dmc5cPxKc5bdKdEN3UjI7OUGxBlw57miDrQ=
 github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
@@ -128,8 +142,10 @@ github.com/grafana/otel-profiling-go v0.5.1 h1:stVPKAFZSa7eGiqbYuG25VcqYksR6iWvF
 github.com/grafana/otel-profiling-go v0.5.1/go.mod h1:ftN/t5A/4gQI19/8MoWurBEtC6gFw8Dns1sJZ9W4Tls=
 github.com/grafana/pyroscope-go/godeltaprof v0.1.9 h1:c1Us8i6eSmkW+Ez05d3co8kasnuOY813tbMN8i/a3Og=
 github.com/grafana/pyroscope-go/godeltaprof v0.1.9/go.mod h1:2+l7K7twW49Ct4wFluZD3tZ6e0SjanjcUUBPVD/UuGU=
-github.com/grafana/sqlds/v5 v5.1.0 h1:vXUtUqYn7vxP2lHk+m1DbDUtHFNGSgSLq8wDhxcOGrA=
-github.com/grafana/sqlds/v5 v5.1.0/go.mod h1:Pe2mNigQjaC+hF8xF4gZdBAsxeg7u1ya/t/V9vMrawE=
+github.com/grafana/schemads v0.0.6 h1:Pz0fClDO0wfzb0THzgM8pyxVycbEa7b0ARS7YxfZ4RU=
+github.com/grafana/schemads v0.0.6/go.mod h1:4BnVcbwJT6xqyge9nB0GFbfzc6Aw3RzXD5TaZIOnPqY=
+github.com/grafana/sqlds/v5 v5.1.1 h1:QEZayyzZZZjDnfMX/f5k7oLehOBH7X1MMnpgn+yDkkI=
+github.com/grafana/sqlds/v5 v5.1.1/go.mod h1:fUt31TRrHrBZ6lyaHZyDqSfeouuSXV6PeBgrNFuZVmo=
 github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.1.0 h1:QGLs/O40yoNK9vmy4rhUGBVyMf1lISBGtXRpsu/Qu/o=
 github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus v1.1.0/go.mod h1:hM2alZsMUni80N33RBe6J0e423LB+odMj7d3EMP9l20=
 github.com/grpc-ecosystem/go-grpc-middleware/v2 v2.3.3 h1:B+8ClL/kCQkRiU82d9xajRPKYMrB7E0MbtzWVi1K4ns=
@@ -142,10 +158,21 @@ github.com/hashicorp/go-plugin v1.7.0 h1:YghfQH/0QmPNc/AZMTFE3ac8fipZyZECHdDPshf
 github.com/hashicorp/go-plugin v1.7.0/go.mod h1:BExt6KEaIYx804z8k4gRzRLEvxKVb+kn0NMcihqOqb8=
 github.com/hashicorp/yamux v0.1.2 h1:XtB8kyFOyHXYVFnwT5C3+Bdo8gArse7j2AQ0DA0Uey8=
 github.com/hashicorp/yamux v0.1.2/go.mod h1:C+zze2n6e/7wshOZep2A70/aQU6QBRWJO/G6FT1wIns=
+github.com/huandu/go-assert v1.1.5/go.mod h1:yOLvuqZwmcHIC5rIzrBhT7D3Q9c3GFnd0JrPVhn/06U=
+github.com/huandu/go-assert v1.1.6 h1:oaAfYxq9KNDi9qswn/6aE0EydfxSa+tWZC1KabNitYs=
+github.com/huandu/go-assert v1.1.6/go.mod h1:JuIfbmYG9ykwvuxoJ3V8TB5QP+3+ajIA54Y44TmkMxs=
+github.com/huandu/go-clone v1.7.3 h1:rtQODA+ABThEn6J5LBTppJfKmZy/FwfpMUWa8d01TTQ=
+github.com/huandu/go-clone v1.7.3/go.mod h1:ReGivhG6op3GYr+UY3lS6mxjKp7MIGTknuU5TbTVaXE=
+github.com/huandu/go-sqlbuilder v1.39.1 h1:uUaj41yLNTQBe7ojNF6Im1RPbHCN4zCjMRySTEC2ooI=
+github.com/huandu/go-sqlbuilder v1.39.1/go.mod h1:zdONH67liL+/TvoUMwnZP/sUYGSSvHh9psLe/HpXn8E=
+github.com/huandu/xstrings v1.4.0 h1:D17IlohoQq4UcpqD7fDk80P7l+lwAmlFaBHgOipl2FU=
+github.com/huandu/xstrings v1.4.0/go.mod h1:y5/lhBue+AyNmUVz9RLU9xbLR0o4KIIExikq4ovT0aE=
 github.com/jaegertracing/jaeger-idl v0.6.0 h1:LOVQfVby9ywdMPI9n3hMwKbyLVV3BL1XH2QqsP5KTMk=
 github.com/jaegertracing/jaeger-idl v0.6.0/go.mod h1:mpW0lZfG907/+o5w5OlnNnig7nHJGT3SfKmRqC42HGQ=
 github.com/jhump/protoreflect v1.17.0 h1:qOEr613fac2lOuTgWN4tPAtLL7fUSbuJL5X5XumQh94=
 github.com/jhump/protoreflect v1.17.0/go.mod h1:h9+vUUL38jiBzck8ck+6G/aeMX8Z4QUY/NiJPwPNi+8=
+github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
+github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y=
 github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
 github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=
 github.com/jszwedko/go-datemath v0.1.1-0.20230526204004-640a500621d6 h1:SwcnSwBR7X/5EHJQlXBockkJVIMRVt5yKaesBPMtyZQ=
@@ -177,6 +204,8 @@ github.com/magefile/mage v1.15.0 h1:BvGheCMAsG3bWUDbZ8AyXXpCNwU9u5CB6sM+HNb9HYg=
 github.com/magefile/mage v1.15.0/go.mod h1:z5UZb/iS3GoOSn0JgWuiw7dxlurVYTu+/jHXqQg881A=
 github.com/magiconair/properties v1.8.10 h1:s31yESBquKXCV9a/ScB3ESkOjUYYv+X0rg8SYxI99mE=
 github.com/magiconair/properties v1.8.10/go.mod h1:Dhd985XPs7jluiymwWYZ0G4Z61jb3vdS329zhj2hYo0=
+github.com/mailru/easyjson v0.7.7 h1:UGYAvKxe3sBsEDzO8ZeWOSlIQfWFlxbzLZe7hwFURr0=
+github.com/mailru/easyjson v0.7.7/go.mod h1:xzfreul335JAWq5oZzymOObrkdz5UnU4kGfJJLY9Nlc=
 github.com/mattetti/filebuffer v1.0.1 h1:gG7pyfnSIZCxdoKq+cPa8T0hhYtD9NxCdI4D7PTjRLM=
 github.com/mattetti/filebuffer v1.0.1/go.mod h1:YdMURNDOttIiruleeVr6f56OrMc+MydEnTcXwtkxNVs=
 github.com/mattn/go-colorable v0.1.9/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=
@@ -295,6 +324,7 @@ github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpE
 github.com/stretchr/objx v0.5.2 h1:xuMeJ0Sdp5ZMRXx/aWO6RZxdr3beISkG5/G/aIRr3pY=
 github.com/stretchr/objx v0.5.2/go.mod h1:FRsXN1f5AsAjCGJKqEizvkpNtU+EGNCLh3NxZ/8L+MA=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
@@ -474,3 +504,11 @@ gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gotest.tools/v3 v3.5.2 h1:7koQfIKdy+I8UTetycgUqXWSDwpgv193Ka+qRsmBY8Q=
 gotest.tools/v3 v3.5.2/go.mod h1:LtdLGcnqToBH83WByAAi/wiwSFCArdFIUV/xxN4pcjA=
+k8s.io/kube-openapi v0.0.0-20260127142750-a19766b6e2d4 h1:HhDfevmPS+OalTjQRKbTHppRIz01AWi8s45TMXStgYY=
+k8s.io/kube-openapi v0.0.0-20260127142750-a19766b6e2d4/go.mod h1:kdmbQkyfwUagLfXIad1y2TdrjPFWp2Q89B3qkRwf/pQ=
+k8s.io/utils v0.0.0-20240711033017-18e509b52bc8 h1:pUdcCO1Lk/tbT5ztQWOBi5HBgbBP1J8+AsQnQCKsi8A=
+k8s.io/utils v0.0.0-20240711033017-18e509b52bc8/go.mod h1:OLgZIPagt7ERELqWJFomSt595RzquPNLL48iOWgYOg0=
+sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd h1:EDPBXCAspyGV4jQlpZSudPeMmr1bNJefnuqLsRAsHZo=
+sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd/go.mod h1:B8JuhiUyNFVKdsE8h686QcCxMaH6HrOAZj4vswFpcB0=
+sigs.k8s.io/randfill v1.0.0 h1:JfjMILfT8A6RbawdsK2JXGBR5AQVfd+9TbzrlneTyrU=
+sigs.k8s.io/randfill v1.0.0/go.mod h1:XeLlZ/jmk4i1HRopwe7/aU3H5n1zNUcX6TM94b3QxOY=

package.json

@@ -26,6 +26,7 @@
   "author": "Grafana Labs",
   "license": "Apache-2.0",
   "devDependencies": {
+    "@axe-core/playwright": "^4.11.1",
     "@babel/core": "^7.29.0",
     "@grafana/eslint-config": "^8.2.0",
     "@grafana/plugin-e2e": "^3.3.0",

pkg/plugin/datasource.go

@@ -5,6 +5,7 @@ import (
 
 	"github.com/grafana/grafana-plugin-sdk-go/backend"
 	"github.com/grafana/grafana-plugin-sdk-go/backend/instancemgmt"
+	schemas "github.com/grafana/schemads"
 	"github.com/grafana/sqlds/v5"
 )
 
@@ -15,5 +16,18 @@ func NewDatasource(ctx context.Context, settings backend.DataSourceInstanceSetti
 	if pluginSettings.ForwardHeaders {
 		ds.EnableMultipleConnections = true
 	}
+
+	schemaProvider := NewSchemaProvider(&clickhousePlugin, settings)
+	ds.ResourceMiddleware = func(next backend.CallResourceHandler) backend.CallResourceHandler {
+		return schemas.NewSchemaDatasource(
+			schemaProvider,
+			schemaProvider,
+			schemaProvider,
+			nil, // no table parameter values handler
+			schemaProvider,
+			next,
+		)
+	}
+
 	return ds.NewDatasource(ctx, settings)
 }

pkg/plugin/driver.go

@@ -23,6 +23,7 @@ import (
 	"github.com/grafana/grafana-plugin-sdk-go/build/buildinfo"
 	"github.com/grafana/grafana-plugin-sdk-go/data"
 	"github.com/grafana/grafana-plugin-sdk-go/data/sqlutil"
+	schemas "github.com/grafana/schemads"
 	"github.com/grafana/sqlds/v5"
 	"github.com/pkg/errors"
 	"go.opentelemetry.io/otel/attribute"
@@ -31,7 +32,9 @@ import (
 )
 
 // Clickhouse defines how to connect to a Clickhouse datasource
-type Clickhouse struct{}
+type Clickhouse struct {
+	SchemaDatasource *schemas.SchemaDatasource
+}
 
 // getTLSConfig returns tlsConfig from settings
 // logic reused from https://github.com/grafana/grafana/blob/615c153b3a2e4d80cff263e67424af6edb992211/pkg/models/datasource_cache.go#L211
@@ -351,6 +354,60 @@ func (h *Clickhouse) Settings(ctx context.Context, config backend.DataSourceInst
 	}
 }
 
+func (h *Clickhouse) MutateQueryData(ctx context.Context, req *backend.QueryDataRequest) (context.Context, *backend.QueryDataRequest) {
+	req = preprocessGrafanaSQL(req)
+	return ctx, req
+}
+
+func preprocessGrafanaSQL(req *backend.QueryDataRequest) *backend.QueryDataRequest {
+	if req == nil || len(req.Queries) == 0 {
+		return req
+	}
+
+	queries := make([]backend.DataQuery, 0, len(req.Queries))
+	for _, q := range req.Queries {
+		var sq schemas.Query
+
+		if err := json.Unmarshal(q.JSON, &sq); err != nil {
+			// Cannot unmarshal query JSON, ignoring
+			queries = append(queries, q)
+			continue
+		}
+
+		if !sq.GrafanaSql {
+			// Not a Grafana SQL query, ignoring
+			queries = append(queries, q)
+			continue
+		}
+
+		sqlQuery, err := sq.ToSQL(schemas.DialectClickHouse)
+		if err != nil {
+			backend.Logger.Error("Failed to build SQL query", "error", err.Error())
+			continue
+		}
+
+		// Build JSON with `sqlutil.Query` shape that will be used to execute the query by sqlds
+		queryJSON, err := json.Marshal(sqlutil.Query{
+			RawSQL:         sqlQuery,
+			Format:         sqlutil.FormatOptionTable, // TODO: Is this correct?
+			ConnectionArgs: json.RawMessage("{}"),
+		})
+		if err != nil {
+			backend.Logger.Error("Failed to marshal SQL query", "error", err.Error())
+			continue
+		}
+
+		q.JSON = queryJSON
+		queries = append(queries, q)
+	}
+
+	return &backend.QueryDataRequest{
+		PluginContext: req.PluginContext,
+		Headers:       req.Headers,
+		Queries:       queries,
+	}
+}
+
 func (h *Clickhouse) MutateQuery(ctx context.Context, req backend.DataQuery) (context.Context, backend.DataQuery) {
 	ctx, span := tracing.DefaultTracer().Start(ctx, "clickhouse mutate_query", trace.WithAttributes(
 		attribute.String("db.system", "clickhouse"),