diff --git a/CHANGELOG.md b/CHANGELOG.md
index 44fe38bc..3f616092 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+# 1.12.2
+
+## Bug fixes
+
+- Fixed boolean value formatting in query parameters. Boolean values within `Array`, `Tuple`, and `Map` types are now correctly formatted as `TRUE`/`FALSE` instead of `1`/`0` to ensure proper type compatibility with ClickHouse.
+
 # 1.12.1
 
 ## Improvements
@@ -198,7 +204,7 @@ A minor release to allow further investigation regarding uncaught error issues w
 
 ## New features
 
-- Added optional `real_time_microseconds` field to the `ClickHouseSummary` interface (see https://github.com/ClickHouse/ClickHouse/pull/69032)
+- Added optional `real_time_microseconds` field to the `ClickHouseSummary` interface (see <https://github.com/ClickHouse/ClickHouse/pull/69032>)
 
 ## Bug fixes
 
diff --git a/packages/client-common/__tests__/unit/format_query_params.test.ts b/packages/client-common/__tests__/unit/format_query_params.test.ts
index cedf0e56..d69161e4 100644
--- a/packages/client-common/__tests__/unit/format_query_params.test.ts
+++ b/packages/client-common/__tests__/unit/format_query_params.test.ts
@@ -1,4 +1,4 @@
-import { formatQueryParams } from '@clickhouse/client-common'
+import { formatQueryParams, TupleParam } from '@clickhouse/client-common'
 
 describe('formatQueryParams', () => {
   it('formats null', () => {
@@ -158,4 +158,76 @@ describe('formatQueryParams', () => {
       }),
     ).toBe("{'name':'custom','id':42,'params':{'refs':[44]}}")
   })
+
+  it('formats booleans in arrays as TRUE/FALSE', () => {
+    expect(formatQueryParams({ value: [true, false] })).toBe('[TRUE,FALSE]')
+    expect(formatQueryParams({ value: [true] })).toBe('[TRUE]')
+    expect(formatQueryParams({ value: [false] })).toBe('[FALSE]')
+  })
+
+  it('formats booleans in nested arrays as TRUE/FALSE', () => {
+    expect(
+      formatQueryParams({
+        value: [
+          [true, false],
+          [false, true],
+        ],
+      }),
+    ).toBe('[[TRUE,FALSE],[FALSE,TRUE]]')
+    expect(
+      formatQueryParams({
+        value: [[[true]], [[false]]],
+      }),
+    ).toBe('[[[TRUE]],[[FALSE]]]')
+  })
+
+  it('formats booleans in arrays with mixed types', () => {
+    expect(formatQueryParams({ value: [1, true, 'test', false, null] })).toBe(
+      "[1,TRUE,'test',FALSE,NULL]",
+    )
+  })
+
+  it('formats booleans in tuples as TRUE/FALSE', () => {
+    expect(
+      formatQueryParams({
+        value: new TupleParam([true, false]),
+      }),
+    ).toBe('(TRUE,FALSE)')
+    expect(
+      formatQueryParams({
+        value: new TupleParam([1, true, 'test', false]),
+      }),
+    ).toBe("(1,TRUE,'test',FALSE)")
+  })
+
+  it('formats booleans in nested tuples as TRUE/FALSE', () => {
+    expect(
+      formatQueryParams({
+        value: new TupleParam([new TupleParam([true, false]), true]),
+      }),
+    ).toBe('((TRUE,FALSE),TRUE)')
+  })
+
+  it('formats booleans in objects (Maps) as TRUE/FALSE', () => {
+    expect(
+      formatQueryParams({
+        value: {
+          isActive: true,
+          isDeleted: false,
+        },
+      }),
+    ).toBe("{'isActive':TRUE,'isDeleted':FALSE}")
+  })
+
+  it('formats booleans in nested structures', () => {
+    expect(
+      formatQueryParams({
+        value: {
+          name: 'test',
+          flags: [true, false],
+          tuple: new TupleParam([false, true]),
+        },
+      }),
+    ).toBe("{'name':'test','flags':[TRUE,FALSE],'tuple':(FALSE,TRUE)}")
+  })
 })
diff --git a/packages/client-common/src/data_formatter/format_query_params.ts b/packages/client-common/src/data_formatter/format_query_params.ts
index 0e270a20..6efc6ea3 100644
--- a/packages/client-common/src/data_formatter/format_query_params.ts
+++ b/packages/client-common/src/data_formatter/format_query_params.ts
@@ -7,6 +7,20 @@ export function formatQueryParams({
   wrapStringInQuotes,
   printNullAsKeyword,
 }: FormatQueryParamsOptions): string {
+  return formatQueryParamsInternal({
+    value,
+    wrapStringInQuotes,
+    printNullAsKeyword,
+    isInArrayOrTuple: false,
+  })
+}
+
+function formatQueryParamsInternal({
+  value,
+  wrapStringInQuotes,
+  printNullAsKeyword,
+  isInArrayOrTuple,
+}: FormatQueryParamsOptions & { isInArrayOrTuple: boolean }): string {
   if (value === null || value === undefined) {
     if (printNullAsKeyword) return 'NULL'
     return '\\N'
@@ -16,7 +30,12 @@ export function formatQueryParams({
   if (value === Number.NEGATIVE_INFINITY) return '-inf'
 
   if (typeof value === 'number') return String(value)
-  if (typeof value === 'boolean') return value ? '1' : '0'
+  if (typeof value === 'boolean') {
+    if (isInArrayOrTuple) {
+      return value ? 'TRUE' : 'FALSE'
+    }
+    return value ? '1' : '0'
+  }
   if (typeof value === 'string') {
     let result = ''
     for (let i = 0; i < value.length; i++) {
@@ -46,10 +65,11 @@ export function formatQueryParams({
   if (Array.isArray(value)) {
     return `[${value
       .map((v) =>
-        formatQueryParams({
+        formatQueryParamsInternal({
           value: v,
           wrapStringInQuotes: true,
           printNullAsKeyword: true,
+          isInArrayOrTuple: true,
         }),
       )
       .join(',')}]`
@@ -70,10 +90,11 @@ export function formatQueryParams({
   if (value instanceof TupleParam) {
     return `(${value.values
       .map((v) =>
-        formatQueryParams({
+        formatQueryParamsInternal({
           value: v,
           wrapStringInQuotes: true,
           printNullAsKeyword: true,
+          isInArrayOrTuple: true,
         }),
       )
       .join(',')})`
@@ -98,14 +119,16 @@ function formatObjectLikeParam(
   const formatted: string[] = []
   for (const [key, val] of entries) {
     formatted.push(
-      `${formatQueryParams({
+      `${formatQueryParamsInternal({
         value: key,
         wrapStringInQuotes: true,
         printNullAsKeyword: true,
-      })}:${formatQueryParams({
+        isInArrayOrTuple: true,
+      })}:${formatQueryParamsInternal({
         value: val,
         wrapStringInQuotes: true,
         printNullAsKeyword: true,
+        isInArrayOrTuple: true,
       })}`,
     )
   }