chore: improvements in codebase - index, migrations for postgres

app/server/appsmith-server/src/main/java/com/appsmith/server/applications/base/ApplicationServiceCEImpl.java

@@ -256,7 +256,8 @@ private Mono<Application> createSuffixedApplication(Application application, Str
         return super.create(application).onErrorResume(DataIntegrityViolationException.class, error -> {
             if (error.getMessage() != null
                     // Catch only if error message contains workspace_app_deleted_git_application_metadata mongo error
-                    && (error.getMessage().contains("u_workspace_app"))) {
+                    && (error.getMessage()
+                            .contains("application_workspace_name_deleted_git_application_metadata_key"))) {
                 if (suffix > MAX_RETRIES) {
                     return Mono.error(new AppsmithException(AppsmithError.DUPLICATE_KEY_PAGE_RELOAD, name));
                 } else {

app/server/appsmith-server/src/main/java/com/appsmith/server/datasources/fork/DatasourceForkableServiceCEImpl.java

@@ -157,7 +157,7 @@ private Mono<Datasource> createSuffixedDatasource(Datasource datasource, String
         final String actualName = name + (suffix == 0 ? "" : " (" + suffix + ")");
         datasource.setName(actualName);
         return datasourceService.create(datasource).onErrorResume(DataIntegrityViolationException.class, error -> {
-            if (error.getMessage() != null && error.getMessage().contains("u_workspace_datasource")) {
+            if (error.getMessage() != null && error.getMessage().contains("datasource_workspace_name_deleted_key")) {
                 return createSuffixedDatasource(datasource, name, 1 + suffix);
             }
             throw error;

app/server/appsmith-server/src/main/java/com/appsmith/server/migrations/ce/V002__loadMongoData.java

@@ -144,6 +144,13 @@ private void moveForTable(Path jsonlPath, JdbcTemplate jdbcTemplate, boolean isC
                     }
                 }
 
+                if (columnTypes.containsKey("created_at")) {
+                    data.put("created_at", Instant.now().toString());
+                }
+                if (columnTypes.containsKey("updated_at")) {
+                    data.put("updated_at", null);
+                }
+
                 // Build the INSERT query to only have the columns that are present in the JSON document. This allows
                 // the rest of the columns to take on their default value, if configured, instead of `null`.
                 final String sql = String.join(

app/server/appsmith-server/src/main/java/com/appsmith/server/migrations/ce/V003__createIndexes.sql

@@ -1,14 +1,13 @@
-create unique index if not exists u_name_config on config(name);
-create unique index if not exists u_email_pass_reset_token on password_reset_token(email);
-create unique index if not exists u_email_user on "user"(email);
-create unique index if not exists u_name_sequence on sequence(name);
-create unique index if not exists plugin_name_package_name_version_index on plugin(plugin_name, package_name, version);
-create unique index if not exists u_user_id on user_data(user_id);
-create unique index if not exists u_workspace_datasource_deleted on datasource(workspace_id, name, deleted_at);
-CREATE UNIQUE INDEX if not exists u_workspace_datasource ON datasource (workspace_id, name) WHERE deleted_at IS NULL;
-create unique index if not exists u_workspace_app_deleted on application(workspace_id, name, deleted_at) where git_application_metadata is null;
-create unique index if not exists u_workspace_app on application(workspace_id, name) where deleted_at is null and git_application_metadata is null;
-create unique index if not exists u_workspace_app_deleted_git_application_metadata on application(workspace_id, name, deleted_at, (git_application_metadata ->> 'remoteUrl'), (git_application_metadata ->>'branchName'));
-create unique index if not exists u_workspace_app_git_application_metadata on application(workspace_id, name, (git_application_metadata ->> 'remoteUrl'), (git_application_metadata ->>'branchName')) WHERE deleted_at is NULL;
-create unique index if not exists u_dsConfigStructure_dsId_envId on datasource_storage_structure(datasource_id, environment_id);
-create unique index if not exists u_applicationId_chunkOrder on application_snapshot(application_id, chunk_order);
+-- index naming convention: (pkey reserved for primary keys)
+-- unique constraint index - table_name_column_name_key
+-- performance improvement index - table_name_column_name_idx
+create unique index if not exists config_name_key on config(name) ;
+create unique index if not exists prt_email_key on password_reset_token(email);
+create unique index if not exists user_email_key on "user"(email);
+create unique index if not exists sequence_name_key on sequence(name);
+create unique index if not exists plugin_name_package_name_version_key on plugin(plugin_name, package_name, version) NULLS NOT DISTINCT;
+create unique index if not exists user_id_key on user_data(user_id);
+create unique index if not exists datasource_workspace_name_deleted_key on datasource(workspace_id, name, deleted_at) NULLS NOT DISTINCT;
+create unique index if not exists application_workspace_name_deleted_git_application_metadata_key on application(workspace_id, name, deleted_at, (git_application_metadata ->> 'remoteUrl'), (git_application_metadata ->>'branchName')) NULLS NOT DISTINCT;
+create unique index if not exists dss_datasource_env_key on datasource_storage_structure(datasource_id, environment_id) NULLS NOT DISTINCT;
+create unique index if not exists application_snapshot_application_chunkOrder_key on application_snapshot(application_id, chunk_order) NULLS NOT DISTINCT;

app/server/appsmith-server/src/main/java/com/appsmith/server/services/ce/MockDataServiceCEImpl.java

@@ -239,7 +239,7 @@ private Mono<Datasource> createSuffixedDatasource(
         final String finalPassword = password;
         return datasourceService.create(datasource).onErrorResume(DataIntegrityViolationException.class, error -> {
             if (error.getMessage() != null
-                    && error.getMessage().contains("u_workspace_datasource")
+                    && error.getMessage().contains("datasource_workspace_name_deleted_key")
                     && datasourceStorageDTO.getDatasourceConfiguration().getAuthentication() instanceof DBAuth) {
                 ((DBAuth) datasourceStorageDTO.getDatasourceConfiguration().getAuthentication())
                         .setPassword(finalPassword);