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package sqlancer.clickhouse;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import com.clickhouse.client.ClickHouseDataType;
import sqlancer.Randomly;
import sqlancer.SQLConnection;
import sqlancer.clickhouse.ClickHouseProvider.ClickHouseGlobalState;
import sqlancer.clickhouse.ClickHouseSchema.ClickHouseTable;
import sqlancer.clickhouse.ast.ClickHouseColumnReference;
import sqlancer.clickhouse.ast.ClickHouseConstant;
import sqlancer.clickhouse.ast.constant.ClickHouseCreateConstant;
import sqlancer.common.schema.AbstractRelationalTable;
import sqlancer.common.schema.AbstractRowValue;
import sqlancer.common.schema.AbstractSchema;
import sqlancer.common.schema.AbstractTableColumn;
import sqlancer.common.schema.AbstractTables;
import sqlancer.common.schema.TableIndex;
public class ClickHouseSchema extends AbstractSchema<ClickHouseGlobalState, ClickHouseTable> {
public static class ClickHouseLancerDataType {
private final ClickHouseDataType clickHouseType;
private final String textRepr;
public ClickHouseLancerDataType(ClickHouseDataType type) {
this.clickHouseType = type;
this.textRepr = type.toString();
}
public ClickHouseLancerDataType(String textRepr) {
this.clickHouseType = ClickHouseDataType.of(textRepr);
this.textRepr = textRepr;
}
public static ClickHouseLancerDataType getRandom() {
return new ClickHouseLancerDataType(
Randomly.fromOptions(ClickHouseDataType.Int32, ClickHouseDataType.String));
}
public ClickHouseDataType getType() {
return clickHouseType;
}
@Override
public String toString() {
return textRepr;
}
}
public static class ClickHouseColumn extends AbstractTableColumn<ClickHouseTable, ClickHouseLancerDataType> {
private final boolean isAlias;
private final boolean isMaterialized;
public ClickHouseColumn(String name, ClickHouseLancerDataType columnType, boolean isAlias,
boolean isMaterialized, ClickHouseTable table) {
super(name, table, columnType);
this.isAlias = isAlias;
this.isMaterialized = isMaterialized;
}
public static ClickHouseSchema.ClickHouseColumn createDummy(String name, ClickHouseTable table) {
return new ClickHouseSchema.ClickHouseColumn(name, ClickHouseLancerDataType.getRandom(), false, false,
table);
}
public boolean isAlias() {
return isAlias;
}
public boolean isMaterialized() {
return isMaterialized;
}
public ClickHouseColumnReference asColumnReference(String tableAlias) {
return new ClickHouseColumnReference(this, null, tableAlias);
}
}
public static ClickHouseConstant getConstant(ResultSet randomRowValues, int columnIndex,
ClickHouseDataType valueType) throws SQLException, AssertionError {
Object value;
ClickHouseConstant constant;
if (randomRowValues.getString(columnIndex) == null) {
constant = ClickHouseCreateConstant.createNullConstant();
} else {
switch (valueType) {
case Int32:
value = randomRowValues.getLong(columnIndex);
constant = ClickHouseCreateConstant.createInt32Constant((long) value);
break;
case Float64:
value = randomRowValues.getDouble(columnIndex);
constant = ClickHouseCreateConstant.createFloat64Constant((double) value);
break;
case String:
value = randomRowValues.getString(columnIndex);
constant = ClickHouseCreateConstant.createStringConstant((String) value);
break;
case AggregateFunction:
case Array:
// case Bool:
case Date:
// case Date32:
case DateTime:
case DateTime32:
case DateTime64:
case Decimal:
case Decimal128:
case Decimal256:
case Decimal32:
case Decimal64:
// case Enum:
case Enum16:
case Enum8:
case FixedString:
case Float32:
case IPv4:
case IPv6:
case Int128:
case Int16:
case Int256:
case Int64:
case Int8:
case IntervalDay:
case IntervalHour:
// case IntervalMicrosecond:
// case IntervalMillisecond:
case IntervalMinute:
case IntervalMonth:
// case IntervalNanosecond:
case IntervalQuarter:
case IntervalSecond:
case IntervalWeek:
case IntervalYear:
// case JSON:
// case LowCardinality:
case Map:
// case MultiPolygon:
case Nested:
case Nothing:
// case Nullable:
// case Object:
// case Point:
// case Polygon:
// case Ring:
// case SimpleAggregateFunction:
case Tuple:
case UInt128:
case UInt16:
case UInt256:
case UInt32:
case UInt64:
case UInt8:
case UUID:
default:
throw new AssertionError(valueType);
}
}
return constant;
}
public static class ClickHouseRowValue
extends AbstractRowValue<ClickHouseTables, ClickHouseColumn, ClickHouseConstant> {
ClickHouseRowValue(ClickHouseSchema.ClickHouseTables tables,
Map<ClickHouseSchema.ClickHouseColumn, ClickHouseConstant> values) {
super(tables, values);
}
}
public static class ClickHouseTables extends AbstractTables<ClickHouseTable, ClickHouseColumn> {
public ClickHouseTables(List<ClickHouseSchema.ClickHouseTable> tables) {
super(tables);
}
}
public ClickHouseSchema(List<ClickHouseTable> databaseTables) {
super(databaseTables);
}
public ClickHouseTables getRandomTableNonEmptyTables() {
return new ClickHouseTables(Randomly.nonEmptySubset(getDatabaseTables()));
}
private static ClickHouseLancerDataType getColumnType(String typeString) {
return new ClickHouseLancerDataType(typeString);
}
public static class ClickHouseTable
extends AbstractRelationalTable<ClickHouseColumn, TableIndex, ClickHouseGlobalState> {
public ClickHouseTable(String tableName, List<ClickHouseColumn> columns, List<TableIndex> indexes,
boolean isView) {
super(tableName, columns, indexes, isView);
}
}
public static ClickHouseSchema fromConnection(SQLConnection con, String databaseName) throws SQLException {
List<ClickHouseTable> databaseTables = new ArrayList<>();
List<String> tableNames = getTableNames(con);
for (String tableName : tableNames) {
List<ClickHouseColumn> databaseColumns = getTableColumns(con, tableName);
List<TableIndex> indexes = Collections.emptyList();
boolean isView = tableName.startsWith("v");
ClickHouseTable t = new ClickHouseTable(tableName, databaseColumns, indexes, isView);
for (ClickHouseColumn c : databaseColumns) {
c.setTable(t);
}
databaseTables.add(t);
}
return new ClickHouseSchema(databaseTables);
}
private static List<String> getTableNames(SQLConnection con) throws SQLException {
List<String> tableNames = new ArrayList<>();
try (Statement s = con.createStatement()) {
ResultSet tableRs = s.executeQuery("SHOW TABLES");
while (tableRs.next()) {
String tableName = tableRs.getString(1);
tableNames.add(tableName);
}
}
return tableNames;
}
private static List<ClickHouseColumn> getTableColumns(SQLConnection con, String tableName) throws SQLException {
List<ClickHouseColumn> columns = new ArrayList<>();
try (Statement s = con.createStatement()) {
try (ResultSet rs = s.executeQuery("DESCRIBE " + tableName)) {
while (rs.next()) {
String columnName = rs.getString("name");
String dataType = rs.getString("type");
String defaultType = rs.getString("default_type");
boolean isAlias = "ALIAS".compareTo(defaultType) == 0;
boolean isMaterialized = "MATERIALIZED".compareTo(defaultType) == 0;
ClickHouseColumn c = new ClickHouseColumn(columnName, getColumnType(dataType), isAlias,
isMaterialized, null);
columns.add(c);
}
}
}
return columns;
}
}