[client-v2, jdbc-v2] Lazy String instantiation, Read bytes to buffer first

[chernser]

Summary

Closes #2263
Closes #2558
Closes #2608

Checklist

Delete items not relevant to your PR:

• Closes #
• Unit and integration tests covering the common scenarios were added
• A human-readable description of the changes was provided to include in CHANGELOG
• For significant changes, documentation in https://github.com/ClickHouse/clickhouse-docs was updated with further explanations or tutorials

[chernser]

This implementation is bad. Closing PR.

[github-actions]

Client V2 Coverage

Coverage Report

Package	Coverage	Lines Covered	Total Lines
com.clickhouse.client.api	82.70%	913	1104
com.clickhouse.client.api.command	46.43%	13	28
com.clickhouse.client.api.data_formats	40.29%	141	350
com.clickhouse.client.api.data_formats.internal	73.88%	1686	2282
com.clickhouse.client.api.enums	100.00%	5	5
com.clickhouse.client.api.http	0.00%		1
com.clickhouse.client.api.insert	85.15%	86	101
com.clickhouse.client.api.internal	80.31%	971	1209
com.clickhouse.client.api.metadata	90.74%	49	54
com.clickhouse.client.api.metrics	93.75%	75	80
com.clickhouse.client.api.query	78.88%	127	161
com.clickhouse.client.api.serde	84.21%	48	57
com.clickhouse.client.api.sql	87.50%	28	32
com.clickhouse.client.api.transport	89.29%	50	56

Class Coverage

Class	Coverage	Lines Covered	Total Lines
com.clickhouse.client.api.ClickHouseException	85.71%	12	14
com.clickhouse.client.api.Client	84.75%	378	446
com.clickhouse.client.api.Client.Builder	80.37%	176	219
com.clickhouse.client.api.Client.new DataStreamWriter() {...}	100.00%	8	8
com.clickhouse.client.api.ClientConfigProperties	93.37%	183	196
com.clickhouse.client.api.ClientConfigProperties.new ClientConfigProperties() {...}	100.00%	8	8
com.clickhouse.client.api.ClientException	100.00%	4	4
com.clickhouse.client.api.ClientFaultCause	100.00%	7	7
com.clickhouse.client.api.ClientMisconfigurationException	50.00%	2	4
com.clickhouse.client.api.command.CommandResponse	47.06%	8	17
com.clickhouse.client.api.command.CommandSettings	45.45%	5	11
com.clickhouse.client.api.ConnectionInitiationException	50.00%	3	6
com.clickhouse.client.api.ConnectionReuseStrategy	100.00%	3	3
com.clickhouse.client.api.data_formats.internal.AbstractBinaryFormatReader	73.25%	304	415
com.clickhouse.client.api.data_formats.internal.AbstractBinaryFormatReader.RecordWrapper	50.00%	17	34
com.clickhouse.client.api.data_formats.internal.BinaryReaderBackedRecord	14.77%	13	88
com.clickhouse.client.api.data_formats.internal.BinaryStreamReader	83.37%	381	457
com.clickhouse.client.api.data_formats.internal.BinaryStreamReader.ArrayValue	81.40%	35	43
com.clickhouse.client.api.data_formats.internal.BinaryStreamReader.BinaryStringImpl	100.00%	21	21
com.clickhouse.client.api.data_formats.internal.BinaryStreamReader.CachingByteBufferAllocator	100.00%	8	8
com.clickhouse.client.api.data_formats.internal.BinaryStreamReader.DefaultByteBufferAllocator	100.00%	2	2
com.clickhouse.client.api.data_formats.internal.BinaryStreamReader.EnumValue	80.00%	8	10
com.clickhouse.client.api.data_formats.internal.InetAddressConverter	66.67%	18	27
com.clickhouse.client.api.data_formats.internal.MapBackedRecord	45.54%	102	224
com.clickhouse.client.api.data_formats.internal.NumberConverter	86.81%	79	91
com.clickhouse.client.api.data_formats.internal.NumberConverter.NumberType	100.00%	7	7
com.clickhouse.client.api.data_formats.internal.ProcessParser	82.50%	33	40
com.clickhouse.client.api.data_formats.internal.SerializerUtils	82.22%	578	703
com.clickhouse.client.api.data_formats.internal.SerializerUtils.DynamicClassLoader	100.00%	3	3
com.clickhouse.client.api.data_formats.internal.ValueConverters	70.64%	77	109
com.clickhouse.client.api.data_formats.NativeFormatReader	80.77%	42	52
com.clickhouse.client.api.data_formats.NativeFormatReader.Block	66.67%	12	18
com.clickhouse.client.api.data_formats.RowBinaryFormatReader	15.79%	3	19
com.clickhouse.client.api.data_formats.RowBinaryFormatSerializer	19.82%	22	111
com.clickhouse.client.api.data_formats.RowBinaryFormatWriter	27.84%	27	97
com.clickhouse.client.api.data_formats.RowBinaryFormatWriter.InputStreamHolder	0.00%		4
com.clickhouse.client.api.data_formats.RowBinaryFormatWriter.ReaderHolder	0.00%		4
com.clickhouse.client.api.data_formats.RowBinaryWithNamesAndTypesFormatReader	100.00%	22	22
com.clickhouse.client.api.data_formats.RowBinaryWithNamesFormatReader	56.52%	13	23
com.clickhouse.client.api.DataStreamWriter	0.00%		1
com.clickhouse.client.api.DataTransferException	50.00%	2	4
com.clickhouse.client.api.DataTypeUtils	52.50%	63	120
com.clickhouse.client.api.enums.Protocol	100.00%	2	2
com.clickhouse.client.api.enums.ProxyType	100.00%	3	3
com.clickhouse.client.api.http.ClickHouseHttpProto	0.00%		1
com.clickhouse.client.api.insert.InsertResponse	52.94%	9	17
com.clickhouse.client.api.insert.InsertSettings	91.67%	77	84
com.clickhouse.client.api.internal.BaseCollectionConverter	100.00%	28	28
com.clickhouse.client.api.internal.BaseCollectionConverter.BaseArrayWriter	100.00%	6	6
com.clickhouse.client.api.internal.BaseCollectionConverter.BaseCollectionWriter	71.43%	15	21
com.clickhouse.client.api.internal.BaseCollectionConverter.BaseListWriter	100.00%	6	6
com.clickhouse.client.api.internal.BaseCollectionConverter.ListConversionState	100.00%	11	11
com.clickhouse.client.api.internal.BasicObjectsPool	0.00%		11
com.clickhouse.client.api.internal.CachingObjectsSupplier	0.00%		10
com.clickhouse.client.api.internal.ClickHouseLZ4InputStream	89.33%	67	75
com.clickhouse.client.api.internal.ClickHouseLZ4OutputStream	92.31%	60	65
com.clickhouse.client.api.internal.ClientStatisticsHolder	50.00%	7	14
com.clickhouse.client.api.internal.CommonSettings	97.14%	68	70
com.clickhouse.client.api.internal.CompressedEntity	80.00%	28	35
com.clickhouse.client.api.internal.DataTypeConverter	76.47%	91	119
com.clickhouse.client.api.internal.DataTypeConverter.ArrayAsStringWriter	100.00%	18	18
com.clickhouse.client.api.internal.DataTypeConverter.ListAsStringWriter	100.00%	16	16
com.clickhouse.client.api.internal.EnvUtils	0.00%		14
com.clickhouse.client.api.internal.Gauge	66.67%	4	6
com.clickhouse.client.api.internal.HttpAPIClientHelper	89.39%	438	490
com.clickhouse.client.api.internal.HttpAPIClientHelper.CustomSSLConnectionFactory	0.00%		9
com.clickhouse.client.api.internal.HttpAPIClientHelper.DummySSLConnectionSocketFactory	0.00%		3
com.clickhouse.client.api.internal.HttpAPIClientHelper.MeteredManagedHttpClientConnectionFactory	50.00%	7	14
com.clickhouse.client.api.internal.LZ4Entity	82.93%	34	41
com.clickhouse.client.api.internal.MapUtils	35.48%	22	62
com.clickhouse.client.api.internal.ServerSettings	0.00%		1
com.clickhouse.client.api.internal.StopWatch	66.67%	10	15
com.clickhouse.client.api.internal.TableSchemaParser	80.77%	21	26
com.clickhouse.client.api.internal.ValidationUtils	55.00%	11	20
com.clickhouse.client.api.internal.ValidationUtils.SettingsValidationException	100.00%	3	3
com.clickhouse.client.api.metadata.DefaultColumnToMethodMatchingStrategy	100.00%	13	13
com.clickhouse.client.api.metadata.NoSuchColumnException	0.00%		2
com.clickhouse.client.api.metadata.TableSchema	92.31%	36	39
com.clickhouse.client.api.metrics.ClientMetrics	100.00%	7	7
com.clickhouse.client.api.metrics.MicrometerLoader	90.91%	40	44
com.clickhouse.client.api.metrics.OperationMetrics	94.12%	16	17
com.clickhouse.client.api.metrics.ServerMetrics	100.00%	12	12
com.clickhouse.client.api.query.NullValueException	50.00%	2	4
com.clickhouse.client.api.query.QueryResponse	60.98%	25	41
com.clickhouse.client.api.query.QuerySettings	96.43%	81	84
com.clickhouse.client.api.query.QueryStatement	0.00%		4
com.clickhouse.client.api.query.Records	60.87%	14	23
com.clickhouse.client.api.query.Records.new Iterator() {...}	100.00%	5	5
com.clickhouse.client.api.serde.DataSerializationException	0.00%		6
com.clickhouse.client.api.serde.POJOSerDe	97.96%	48	49
com.clickhouse.client.api.serde.SerializerNotFoundException	0.00%		2
com.clickhouse.client.api.ServerException	100.00%	13	13
com.clickhouse.client.api.ServerException.ErrorCodes	100.00%	9	9
com.clickhouse.client.api.Session	100.00%	42	42
com.clickhouse.client.api.sql.SQLUtils	87.50%	28	32
com.clickhouse.client.api.transport.HttpEndpoint	88.00%	44	50
com.clickhouse.client.api.transport.HttpEndpoint.EndpointDetails	100.00%	6	6

[github-actions]

JDBC V2 Coverage

Coverage Report

Package	Coverage	Lines Covered	Total Lines
com.clickhouse.data	19.23%	5	26
com.clickhouse.jdbc	78.48%	1561	1989
com.clickhouse.jdbc.internal	88.40%	1174	1328
com.clickhouse.jdbc.internal.parser.antlr4	40.76%	6367	15619
com.clickhouse.jdbc.internal.parser.javacc	71.32%	4769	6687
com.clickhouse.jdbc.metadata	84.20%	469	557
com.clickhouse.jdbc.types	55.14%	279	506

Class Coverage

Class	Coverage	Lines Covered	Total Lines
com.clickhouse.data.Tuple	19.23%	5	26
com.clickhouse.jdbc.ClientInfoProperties	100.00%	12	12
com.clickhouse.jdbc.ConnectionImpl	89.62%	233	260
com.clickhouse.jdbc.DataSourceImpl	96.15%	25	26
com.clickhouse.jdbc.Driver	79.17%	38	48
com.clickhouse.jdbc.Driver.FrameworksDetection	90.91%	10	11
com.clickhouse.jdbc.DriverProperties	92.59%	25	27
com.clickhouse.jdbc.internal.DetachedResultSet	80.39%	332	413
com.clickhouse.jdbc.internal.ExceptionUtils	69.57%	16	23
com.clickhouse.jdbc.internal.FeatureManager	100.00%	8	8
com.clickhouse.jdbc.internal.JdbcConfiguration	94.44%	153	162
com.clickhouse.jdbc.internal.JdbcUtils	89.22%	364	408
com.clickhouse.jdbc.internal.JdbcUtils.ArrayProcessingCursor	100.00%	11	11
com.clickhouse.jdbc.internal.ParsedPreparedStatement	96.08%	49	51
com.clickhouse.jdbc.internal.ParsedStatement	93.75%	15	16
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseLexer	77.78%	28	36
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser	45.55%	4793	10522
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AliasContext	66.67%	6	9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterPrivilegeContext	0.00%		44
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterStmtContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseAddColumnContext	41.67%	5	12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseAddIndexContext	0.00%		12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseAddProjectionContext	0.00%		12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseAlterTypeContext	31.25%	5	16
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseAttachContext	0.00%		9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseClearColumnContext	0.00%		12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseClearIndexContext	0.00%		12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseClearProjectionContext	0.00%		12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseCommentContext	0.00%		11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseDeleteContext	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseDetachContext	0.00%		7
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseDropColumnContext	0.00%		10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseDropIndexContext	0.00%		10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseDropPartitionContext	0.00%		7
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseDropProjectionContext	0.00%		10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseFreezePartitionContext	0.00%		7
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseMaterializeIndexContext	0.00%		12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseMaterializeProjectionContext	0.00%		12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseModifyCodecContext	0.00%		11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseModifyCommentContext	38.46%	5	13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseModifyContext	50.00%	5	10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseModifyOrderByContext	0.00%		9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseModifyRemoveContext	0.00%		12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseModifyTTLContext	0.00%		7
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseMovePartitionContext	0.00%		13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseRemoveTTLContext	0.00%		7
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseRenameContext	0.00%		12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseReplaceContext	0.00%		9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableClauseUpdateContext	0.00%		8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableColumnPositionContext	60.00%	6	10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AlterTableStmtContext	38.46%	5	13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ArrayJoinClauseContext	50.00%	6	12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AssignmentExprContext	54.55%	6	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AssignmentExprListContext	54.55%	6	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AssignmentValueContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AssignmentValuesContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AssignmentValuesEmptyContext	0.00%		7
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AssignmentValuesListContext	45.45%	5	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.AttachStmtContext	33.33%	6	18
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CheckAllTablesStmtContext	0.00%		11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CheckGrantStmtContext	45.45%	5	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CheckStmtContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CheckTableStmtContext	35.71%	5	14
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ClusterClauseContext	54.55%	6	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CodecArgExprContext	0.00%		11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CodecExprContext	0.00%		14
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnAliasesContext	0.00%		13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnArgExprContext	66.67%	6	9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnArgListContext	46.15%	6	13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprAgrFuncWithFilterContext	38.46%	5	13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprAliasContext	55.56%	5	9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprAndContext	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprArrayAccessContext	55.56%	5	9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprArrayContext	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprAsteriskContext	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprBetweenContext	0.00%		10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprCaseContext	35.71%	5	14
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprCast2Context	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprCastContext	45.45%	5	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprDateContext	71.43%	5	7
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprExtractContext	0.00%		11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprFunctionContext	38.46%	5	13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprIdentifierContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprIntervalContext	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprIsNullContext	55.56%	5	9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprListContext	54.55%	6	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprLiteralContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprNegateContext	0.00%		7
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprNotContext	0.00%		7
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprOrContext	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprParamContext	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprParensContext	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprPrecedence1Context	50.00%	5	10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprPrecedence2Context	50.00%	5	10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprPrecedence3Context	26.32%	5	19
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprRegexpContext	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprSubqueryContext	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprSubstringContext	0.00%		12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprTernaryOpContext	55.56%	5	9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprTimestampContext	71.43%	5	7
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprTrimContext	0.00%		14
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprTupleAccessContext	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprTupleContext	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprWinFunctionContext	0.00%		13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnExprWinFunctionTargetContext	0.00%		11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnIdentifierContext	60.00%	6	10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnLambdaExprContext	40.00%	6	15
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnPrivilegeContext	42.86%	6	14
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnsClauseContext	53.85%	7	13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnsExprAsteriskContext	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnsExprColumnContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnsExprContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnsExprSubqueryContext	0.00%		8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnTypeExprComplexContext	41.67%	5	12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnTypeExprContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnTypeExprEnumContext	0.00%		12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnTypeExprNestedContext	0.00%		13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnTypeExprParamContext	55.56%	5	9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ColumnTypeExprSimpleContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CreateDatabaseStmtContext	38.46%	5	13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CreateDictionaryStmtContext	21.74%	5	23
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CreateFunctionStmtContext	33.33%	5	15
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CreateLiveViewStmtContext	0.00%		21
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CreateMaterializedViewStmtContext	0.00%		20
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CreateNamedCollectionStmtContext	27.78%	5	18
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CreatePolicyStmtContext	17.24%	5	29
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CreatePrivilegeContext	0.00%		24
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CreateProfileStmtContext	14.71%	5	34
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CreateQuotaStmtContext	18.52%	5	27
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CreateRoleStmtContext	26.32%	5	19
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CreateStmtContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CreateTableStmtContext	25.00%	5	20
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CreateUserStmtContext	17.86%	5	28
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CreateViewStmtContext	26.32%	5	19
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CteClauseContext	42.86%	6	14
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CteUnboundColContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CteUnboundColExprContext	50.00%	5	10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CteUnboundColLiteralContext	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CteUnboundColParamContext	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.CteUnboundSubQueryContext	0.00%		10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.DatabaseIdentifierContext	63.64%	7	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.DataClauseContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.DataClauseFormatContext	0.00%		7
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.DataClauseSelectContext	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.DataClauseValuesContext	60.00%	6	10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.DeleteStmtContext	42.86%	6	14
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.DescribeStmtContext	54.55%	6	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.DestinationClauseContext	0.00%		9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.DictionaryArgExprContext	0.00%		12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.DictionaryAttrDfntContext	40.00%	6	15
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.DictionaryEngineClauseContext	75.00%	6	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.DictionaryPrimaryKeyClauseContext	46.15%	6	13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.DictionarySchemaClauseContext	46.15%	6	13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.DictionarySettingsClauseContext	54.55%	6	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.DropPrivilegeContext	0.00%		24
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.DropStmtContext	15.00%	6	40
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.EngineClauseContext	75.00%	6	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.EngineExprContext	46.15%	6	13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.EnumValueContext	0.00%		10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ExchangeStmtContext	42.86%	6	14
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ExistsDatabaseStmtContext	0.00%		13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ExistsStmtContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ExistsTableStmtContext	31.25%	5	16
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ExplainStmtContext	33.33%	6	18
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.FilenameContext	0.00%		8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.FloatingLiteralContext	50.00%	6	12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.FrameBetweenContext	0.00%		9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.FrameStartContext	0.00%		6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.FromClauseContext	36.84%	7	19
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.GrantStmtContext	20.69%	6	29
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.GrantTableIdentifierContext	50.00%	6	12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.GroupByClauseContext	42.86%	6	14
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.HavingClauseContext	0.00%		9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.IdentifierContext	50.00%	6	12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.IdentifierOrNullContext	66.67%	6	9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.InserParameterExprContext	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.InsertParameterContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.InsertParameterFuncExprContext	55.56%	5	9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.InsertRawValueContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.InsertStmtContext	53.33%	8	15
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.IntervalContext	40.00%	6	15
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.JoinConstraintClauseContext	0.00%		12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.JoinExprContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.JoinExprCrossOpContext	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.JoinExprOpContext	0.00%		12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.JoinExprParensContext	0.00%		8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.JoinExprTableContext	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.JoinOpContext	0.00%		6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.JoinOpCrossContext	50.00%	6	12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.JoinOpFullContext	0.00%		9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.JoinOpInnerContext	0.00%		9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.JoinOpLeftRightContext	0.00%		13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.KeywordContext	1.89%	6	318
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.KeywordForAliasContext	2.33%	6	258
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.KillMutationStmtContext	35.71%	5	14
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.KillQueryStmtContext	35.71%	5	14
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.KillStmtContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.LayoutClauseContext	40.00%	6	15
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.LifetimeClauseContext	42.86%	6	14
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.LimitByClauseContext	0.00%		11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.LimitClauseContext	54.55%	6	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.LimitExprContext	54.55%	6	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.LiteralContext	60.00%	6	10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.MoveStmtContext	33.33%	6	18
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.NameCollectionKeyContext	50.00%	6	12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.NamedQueryContext	40.00%	6	15
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.NestedIdentifierContext	60.00%	6	10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.NumberLiteralContext	40.00%	6	15
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.OptimizeByExprContext	30.00%	6	20
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.OptimizeStmtContext	40.00%	6	15
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.OrderByClauseContext	60.00%	6	10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.OrderExprContext	37.50%	6	16
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.OrderExprListContext	54.55%	6	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.PartitionByClauseContext	0.00%		10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.PartitionClauseContext	0.00%		11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.PrewhereClauseContext	0.00%		9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.PrimaryKeyClauseContext	0.00%		10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.PrivelegeListContext	54.55%	6	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.PrivilegeContext	13.64%	6	44
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ProjectionOrderByClauseContext	0.00%		10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ProjectionSelectStmtContext	0.00%		14
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.QueryContext	38.24%	13	34
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.QueryStmtContext	46.67%	7	15
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.QuotaForClauseContext	33.33%	6	18
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.QuotaMaxExprContext	60.00%	6	10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.RangeClauseContext	0.00%		14
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.RatioExprContext	0.00%		10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.RenameStmtContext	37.50%	6	16
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.RevokeStmtContext	26.09%	6	23
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.SampleByClauseContext	0.00%		10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.SampleClauseContext	0.00%		11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.SchemaAsFunctionClauseContext	0.00%		7
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.SchemaAsTableClauseContext	71.43%	5	7
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.SchemaDescriptionClauseContext	45.45%	5	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.SelectStmtContext	21.43%	6	28
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.SelectStmtWithParensContext	54.55%	6	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.SelectUnionStmtContext	40.00%	6	15
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.SetRolesListContext	63.64%	7	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.SetRoleStmtContext	38.10%	8	21
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.SetStmtContext	60.00%	6	10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.SettingExprContext	60.00%	6	10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.SettingExprListContext	54.55%	6	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.SettingsClauseContext	0.00%		9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowAccessStmtContext	71.43%	5	7
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowClustersStmtContext	27.78%	5	18
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowClusterStmtContext	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowColumnsStmtContext	23.81%	5	21
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowCreatePolicyStmtContext	41.67%	5	12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowCreateProfileContext	38.46%	5	13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowCreateQuotaStmtContext	38.46%	5	13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowCreateRoleStmtContext	41.67%	5	12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowCreateStmtContext	27.78%	5	18
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowCreateUserStmtContext	38.46%	5	13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowDatabasesStmtContext	0.00%		18
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowDictionariesStmtContext	26.32%	5	19
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowEnginesStmtContext	41.67%	5	12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowFromDbClauseContext	60.00%	6	10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowFromTableFromDbClauseContext	54.55%	6	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowFSCachesStmtContext	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowFunctionsStmtContext	45.45%	5	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowGrantsStmtContext	33.33%	5	15
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowIndexStmtContext	22.73%	5	22
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowMergesStmtContext	27.78%	5	18
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowPoliciesStmtContext	50.00%	5	10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowPrivilegeContext	0.00%		25
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowProcessListStmtContext	41.67%	5	12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowProfilesStmtContext	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowQuotasStmtContext	71.43%	5	7
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowQuotaStmtContext	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowRolesStmtContext	55.56%	5	9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowSettingsStmtContext	45.45%	5	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowSettingStmtContext	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowStmtContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowTablesStmtContext	23.81%	5	21
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ShowUsersStmtContext	71.43%	5	7
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.SourceClauseContext	42.86%	6	14
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.SourcePrivilegeContext	0.00%		25
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.SubqueryClauseContext	66.67%	6	9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.SystemPrivilegeContext	0.00%		81
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.SystemStmtContext	5.88%	6	102
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.TableArgExprContext	60.00%	6	10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.TableArgListContext	54.55%	6	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.TableColumnDfntContext	35.29%	6	17
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.TableColumnPropertyExprContext	54.55%	6	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.TableColumnPropertyTypeContext	0.00%		13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.TableElementExprColumnContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.TableElementExprConstraintContext	0.00%		9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.TableElementExprContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.TableElementExprIndexContext	0.00%		7
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.TableElementExprProjectionContext	0.00%		7
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.TableExprAliasContext	55.56%	5	9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.TableExprContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.TableExprFunctionContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.TableExprIdentifierContext	100.00%	6	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.TableExprSubqueryContext	62.50%	5	8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.TableFunctionExprContext	54.55%	6	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.TableIdentifierContext	80.00%	8	10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.TableIndexDfntContext	0.00%		13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.TableProjectionDfntContext	0.00%		9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.TableSchemaClauseContext	83.33%	5	6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.TopClauseContext	0.00%		11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.TruncateStmtContext	42.86%	6	14
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.TtlClauseContext	0.00%		12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.TtlExprContext	0.00%		13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.UndropStmtContext	50.00%	6	12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.UpdateStmtContext	46.15%	6	13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.UserCreateGranteesClauseContext	0.00%		19
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.UserCreateHostClauseContext	0.00%		14
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.UserCreateHostDefContext	0.00%		13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.UserIdentifiedClauseContext	27.27%	6	22
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.UserIdentifiedWithClauseContext	17.14%	6	35
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.UserIdentifierContext	54.55%	6	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.UseStmtContext	77.78%	7	9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.UuidClauseContext	66.67%	6	9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ValidUntilClauseContext	0.00%		10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ViewIdentifierContext	0.00%		8
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.ViewParamContext	63.64%	7	11
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.WatchStmtContext	0.00%		12
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.WhereClauseContext	66.67%	6	9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.WindowClauseContext	0.00%		13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.WindowExprContext	0.00%		10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.WinFrameBoundContext	0.00%		13
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.WinFrameClauseContext	0.00%		10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.WinFrameExtendContext	0.00%		6
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.WinOrderByClauseContext	0.00%		10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.WinPartitionByClauseContext	0.00%		10
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParser.WithClauseContext	0.00%		9
com.clickhouse.jdbc.internal.parser.antlr4.ClickHouseParserBaseListener	64.86%	382	589
com.clickhouse.jdbc.internal.parser.javacc.AbstractCharStream	43.88%	86	196
com.clickhouse.jdbc.internal.parser.javacc.ClickHouseSqlParser	71.17%	2871	4034
com.clickhouse.jdbc.internal.parser.javacc.ClickHouseSqlParserConstants	100.00%	1	1
com.clickhouse.jdbc.internal.parser.javacc.ClickHouseSqlParserTokenManager	82.98%	1648	1986
com.clickhouse.jdbc.internal.parser.javacc.ClickHouseSqlStatement	36.05%	53	147
com.clickhouse.jdbc.internal.parser.javacc.ClickHouseSqlUtils	68.57%	24	35
com.clickhouse.jdbc.internal.parser.javacc.JdbcParseHandler	24.05%	19	79
com.clickhouse.jdbc.internal.parser.javacc.LanguageType	100.00%	6	6
com.clickhouse.jdbc.internal.parser.javacc.OperationType	100.00%	2	2
com.clickhouse.jdbc.internal.parser.javacc.ParseException	3.95%	3	76
com.clickhouse.jdbc.internal.parser.javacc.ParseHandler	50.00%	2	4
com.clickhouse.jdbc.internal.parser.javacc.SimpleCharStream	30.00%	9	30
com.clickhouse.jdbc.internal.parser.javacc.StatementType	92.50%	37	40
com.clickhouse.jdbc.internal.parser.javacc.Token	66.67%	8	12
com.clickhouse.jdbc.internal.parser.javacc.TokenMgrException	0.00%		39
com.clickhouse.jdbc.internal.SqlParserFacade	90.63%	29	32
com.clickhouse.jdbc.internal.SqlParserFacade.ANTLR4AndParamsParser	90.91%	10	11
com.clickhouse.jdbc.internal.SqlParserFacade.ANTLR4AndParamsParser.ParseStatementAndParamsListener	92.86%	13	14
com.clickhouse.jdbc.internal.SqlParserFacade.ANTLR4Parser	97.30%	36	37
com.clickhouse.jdbc.internal.SqlParserFacade.ANTLR4Parser.ParsedPreparedStatementListener	94.34%	50	53
com.clickhouse.jdbc.internal.SqlParserFacade.ANTLR4Parser.ParsedStatementListener	100.00%	15	15
com.clickhouse.jdbc.internal.SqlParserFacade.ANTLR4Parser.ParserErrorListener	100.00%	2	2
com.clickhouse.jdbc.internal.SqlParserFacade.JavaCCParser	98.53%	67	68
com.clickhouse.jdbc.internal.SqlParserFacade.SQLParser	100.00%	4	4
com.clickhouse.jdbc.JdbcV2Wrapper	100.00%	4	4
com.clickhouse.jdbc.metadata.DatabaseMetaDataImpl	81.57%	385	472
com.clickhouse.jdbc.metadata.DatabaseMetaDataImpl.TableType	100.00%	14	14
com.clickhouse.jdbc.metadata.ParameterMetaDataImpl	100.00%	23	23
com.clickhouse.jdbc.metadata.ResultSetMetaDataImpl	97.92%	47	48
com.clickhouse.jdbc.PreparedStatementImpl	77.30%	378	489
com.clickhouse.jdbc.PreparedStatementImpl.ArrayProcessingCursor	100.00%	7	7
com.clickhouse.jdbc.ResultSetImpl	82.20%	508	618
com.clickhouse.jdbc.StatementImpl	92.81%	258	278
com.clickhouse.jdbc.types.Array	88.00%	44	50
com.clickhouse.jdbc.types.ArrayResultSet	50.67%	227	448
com.clickhouse.jdbc.types.Struct	100.00%	8	8
com.clickhouse.jdbc.WriterStatementImpl	30.14%	63	209

[chernser]

Summary

Closes #2263
Closes #2558
Closes #2608

[chernser]

@claude[agent] review changes. give short summary in comment.

[Claude]

@claude[agent] review changes. give short summary in comment.

Review Summary

Changed: This PR adds lazy String instantiation by reading string bytes into ByteBuffers first, with opt-in BinaryString type for deferred conversion. Also includes Session API formalization, improved error messages, Variant null handling, and DNS/auth fixes.

Core Changes:

• BinaryString interface with BinaryStringImpl for lazy String conversion via ByteBuffer (client-v2/src/main/java/com/clickhouse/client/api/data_formats/internal/BinaryStreamReader.java:1452-1504)
• Type hint system allowing BinaryString.class to defer String allocation (client-v2/src/main/java/com/clickhouse/client/api/data_formats/internal/BinaryStreamReader.java:135-146)
• Session extracted into dedicated Session class with thread-safe operations (client-v2/src/main/java/com/clickhouse/client/api/Session.java:1-100)

Compatibility Risk: MEDIUM

Breaking/High-Risk Changes:

1. readValue() signature changed to accept Class<?> type hint - impacts internal callers in AbstractBinaryFormatReader
2. Array/Map item reading now forces String.class hint instead of BinaryString - prevents unexpected type changes in collections (client-v2/src/main/java/com/clickhouse/client/api/data_formats/internal/BinaryStreamReader.java:684,867)
3. Variant null discriminator byte handling changed: 0xFF now treated as null (client-v2/src/main/java/com/clickhouse/client/api/data_formats/internal/BinaryStreamReader.java:916-918)
4. readValue() error context enhanced with row number and timing - exception messages changed
5. BinaryStringImpl.asBytes() throws UnsupportedOperationException for off-heap buffers - new failure mode
6. AbstractBinaryFormatReader.readValue() now unwraps BinaryString to String automatically - output type preserved

Issues Found:

1. Bug - Incorrect buffer handling in BinaryStringImpl (client-v2/src/main/java/com/clickhouse/client/api/data_formats/internal/BinaryStreamReader.java:1487-1492)

   • new String(buffer.array(), ...) reads entire backing array, not just the buffer range
   • Should use new String(buffer.array(), buffer.position(), buffer.remaining(), ...)
   • Impact: Extra bytes or incorrect strings when buffer doesn't start at 0 or uses a slice

2. Inconsistency - Missing BinaryString unwrapping in readValue(String) (client-v2/src/main/java/com/clickhouse/client/api/data_formats/internal/AbstractBinaryFormatReader.java:230)

   • readValue(int) unwraps BinaryString, but readValue(String) delegates without unwrapping
   • Impact: Column-by-name access could return BinaryString when column-by-index returns String

3. Performance - Unnecessary allocation in error path (client-v2/src/main/java/com/clickhouse/client/api/data_formats/internal/AbstractBinaryFormatReader.java:260-269)

   • timeSinceLastNext() called twice per exception
   • Minor: Pre-calculate before constructing message

Tests: Variant null tests added and passing. No dedicated BinaryString tests visible in diff. Session tests added.

Docs: No changes to docs/features.md despite new type-hint API being user-facing in custom reader scenarios.

[sonarqubecloud]

Quality Gate failed

Failed conditions
77.5% Coverage on New Code (required ≥ 80%)

See analysis details on SonarQube Cloud

[github-actions]

This pull request has been automatically marked as stale because it has not had activity in the last 30 days. It will be closed in 2 weeks if no further activity occurs. Please feel free to give a status update or ping for review. Thank you for your contributions!

[github-actions]

This pull request has been automatically marked as stale because it has not had activity in the last 30 days. It will be closed in 2 weeks if no further activity occurs. Please feel free to give a status update or ping for review. Thank you for your contributions!

[chernser]

moved to another PR