Fix issue where query get interrupted during prepare.

common/api/core-common.api.md

@@ -613,6 +613,8 @@ export interface BaseReaderOptions {
     priority?: number;
     quota?: QueryQuota;
     restartToken?: string;
+    // @internal (undocumented)
+    testingArgs?: TestingArgs;
     usePrimaryConn?: boolean;
 }
 
@@ -1987,15 +1989,19 @@ export interface DbBlobResponse extends DbResponse {
 
 // @internal (undocumented)
 export interface DbQueryConfig {
+    allowTestingArgs?: boolean;
+    autoShutdowWhenIdlelForSeconds?: number;
     // (undocumented)
-    globalQuota?: QueryQuota;
+    doNotUsePrimaryConnToPrepare?: boolean;
     // (undocumented)
+    globalQuota?: QueryQuota;
     ignoreDelay?: boolean;
-    // (undocumented)
     ignorePriority?: boolean;
+    memoryMapFileSize?: number;
     // (undocumented)
+    monitorPollInterval?: number;
     requestQueueSize?: number;
-    // (undocumented)
+    statementCacheSizePerWorker?: number;
     workerThreads?: number;
 }
 
@@ -2034,6 +2040,8 @@ export interface DbQueryResponse extends DbResponse {
 export interface DbRequest extends BaseReaderOptions {
     // (undocumented)
     kind?: DbRequestKind;
+    // (undocumented)
+    testingArgs?: TestingArgs;
 }
 
 // @internal (undocumented)
@@ -2085,17 +2093,19 @@ export enum DbResponseStatus {
     // (undocumented)
     Error_BlobIO_OutOfRange = 106,/*  could not submit the query as queue was full.*/
     // (undocumented)
-    Error_ECSql_BindingFailed = 104,/*  generic error*/
+    Error_ECSql_BindingFailed = 104,/*  Shutdown is in progress. */
+    // (undocumented)
+    Error_ECSql_PreparedFailed = 101,/*  generic error*/
     // (undocumented)
-    Error_ECSql_PreparedFailed = 101,/*  ecsql prepared failed*/
+    Error_ECSql_RowToJsonFailed = 103,/*  ecsql prepared failed*/
     // (undocumented)
-    Error_ECSql_RowToJsonFailed = 103,/*  ecsql step failed*/
+    Error_ECSql_StepFailed = 102,/*  ecsql step failed*/
     // (undocumented)
-    Error_ECSql_StepFailed = 102,/*  ecsql failed to serialized row to json.*/
+    Partial = 3,/*  ecsql failed to serialized row to json.*/
     // (undocumented)
-    Partial = 3,/*  ecsql binding failed.*/
+    QueueFull = 5,/*  ecsql binding failed.*/
     // (undocumented)
-    QueueFull = 5,/*  class or property or instance specified was not found or property as not of type blob.*/
+    ShuttingDown = 6,/*  class or property or instance specified was not found or property as not of type blob.*/
     // (undocumented)
     Timeout = 4
 }
@@ -2109,6 +2119,8 @@ export interface DbRuntimeStats {
     // (undocumented)
     memUsed: number;
     // (undocumented)
+    prepareTime: number;
+    // (undocumented)
     timeLimit: number;
     // (undocumented)
     totalTime: number;
@@ -7412,6 +7424,8 @@ export class QueryOptionsBuilder {
     setRestartToken(val: string): this;
     setRowFormat(val: QueryRowFormat): this;
     setSuppressLogErrors(val: boolean): this;
+    // @internal
+    setTestingArgs(val: TestingArgs): this;
     setUsePrimaryConnection(val: boolean): this;
 }
 
@@ -7485,6 +7499,7 @@ export interface QueryStats {
     backendMemUsed: number;
     backendRowsReturned: number;
     backendTotalTime: number;
+    prepareTime: number;
     retryCount: number;
     totalTime: number;
 }
@@ -9662,6 +9677,12 @@ export class TerrainSettings {
     toJSON(): TerrainProps;
 }
 
+// @internal (undocumented)
+export interface TestingArgs {
+    // (undocumented)
+    interrupt?: boolean;
+}
+
 // @internal
 export class TestRpcManager {
     // (undocumented)

common/api/summary/core-common.exports.csv

@@ -832,6 +832,7 @@ public;interface;TerrainProps
 public;type;TerrainProviderName
 deprecated;type;TerrainProviderName
 public;class;TerrainSettings
+internal;interface;TestingArgs
 internal;class;TestRpcManager
 beta;class;TextAnnotation
 public;interface;TextAnnotation2dProps

common/changes/@itwin/core-backend/affank-ccq-fix_2025-01-22-22-18.json

@@ -0,0 +1,10 @@
+{
+  "changes": [
+    {
+      "packageName": "@itwin/core-backend",
+      "comment": "Fix issue with concurrent query where it interrupt statement during prepare",
+      "type": "none"
+    }
+  ],
+  "packageName": "@itwin/core-backend"
+}

common/changes/@itwin/core-common/affank-ccq-fix_2025-01-22-22-18.json

@@ -0,0 +1,10 @@
+{
+  "changes": [
+    {
+      "packageName": "@itwin/core-common",
+      "comment": "Update ECSql reader api to support no stat and error code.",
+      "type": "none"
+    }
+  ],
+  "packageName": "@itwin/core-common"
+}