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package sqlancer.presto;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;
import sqlancer.Randomly;
import sqlancer.SQLConnection;
import sqlancer.common.schema.AbstractRelationalTable;
import sqlancer.common.schema.AbstractSchema;
import sqlancer.common.schema.AbstractTableColumn;
import sqlancer.common.schema.AbstractTables;
import sqlancer.common.schema.TableIndex;
public class PrestoSchema extends AbstractSchema<PrestoGlobalState, PrestoSchema.PrestoTable> {
public PrestoSchema(List<PrestoTable> databaseTables) {
super(databaseTables);
}
public static PrestoSchema fromConnection(SQLConnection con, String databaseName) throws SQLException {
List<PrestoTable> databaseTables = new ArrayList<>();
List<String> tableNames = getTableNames(con);
for (String tableName : tableNames) {
List<PrestoColumn> databaseColumns = getTableColumns(con, databaseName, tableName);
boolean isView = tableName.startsWith("v");
PrestoTable t = new PrestoTable(tableName, databaseColumns, isView);
for (PrestoColumn c : databaseColumns) {
c.setTable(t);
}
databaseTables.add(t);
}
return new PrestoSchema(databaseTables);
}
private static List<String> getTableNames(SQLConnection con) throws SQLException {
List<String> tableNames = new ArrayList<>();
try (Statement s = con.createStatement()) {
// TODO: UPDATE
// SHOW TABLES [ FROM schema ] [ LIKE pattern [ ESCAPE 'escape_character' ] ]
try (ResultSet rs = s.executeQuery("SHOW TABLES")) {
while (rs.next()) {
tableNames.add(rs.getString("Table"));
}
}
}
return tableNames;
}
private static List<PrestoColumn> getTableColumns(SQLConnection con, String databaseName, String tableName)
throws SQLException {
List<PrestoColumn> columns = new ArrayList<>();
try (Statement s = con.createStatement()) {
try (ResultSet rs = s.executeQuery(String.format("select " + " table_catalog " + " , table_schema "
+ " , table_name " + " , column_name " + " , is_nullable " + " , data_type "
+ " from information_schema.columns " + " where table_schema = '%s' and table_name = '%s'",
databaseName, tableName))) {
while (rs.next()) {
String columnName = rs.getString("column_name");
String dataType = rs.getString("data_type");
boolean isNullable = rs.getString("is_nullable").contentEquals("YES");
PrestoColumn c = new PrestoColumn(columnName, getColumnType(dataType), false, isNullable);
columns.add(c);
}
}
}
return columns;
}
private static PrestoCompositeDataType getColumnType(String typeString) {
int bracesStart = typeString.indexOf('(');
String type;
int size = 0;
int precision = 0;
if (bracesStart != -1) {
type = typeString.substring(0, bracesStart);
} else {
type = typeString;
}
type = type.toUpperCase();
PrestoDataType primitiveType;
switch (type) {
case "INTEGER":
primitiveType = PrestoDataType.INT;
size = 4;
break;
case "SMALLINT":
primitiveType = PrestoDataType.INT;
size = 2;
break;
case "BIGINT":
primitiveType = PrestoDataType.INT;
size = 8;
break;
case "TINYINT":
primitiveType = PrestoDataType.INT;
size = 1;
break;
case "VARCHAR":
primitiveType = PrestoDataType.VARCHAR;
break;
case "VARBINARY":
primitiveType = PrestoDataType.VARBINARY;
break;
case "CHAR":
primitiveType = PrestoDataType.CHAR;
break;
case "FLOAT":
case "REAL":
primitiveType = PrestoDataType.FLOAT;
size = 4;
break;
case "DOUBLE":
primitiveType = PrestoDataType.FLOAT;
size = 8;
break;
case "DECIMAL":
primitiveType = PrestoDataType.DECIMAL;
break;
case "BOOLEAN":
primitiveType = PrestoDataType.BOOLEAN;
break;
case "DATE":
primitiveType = PrestoDataType.DATE;
break;
case "TIME":
primitiveType = PrestoDataType.TIME;
break;
case "TIME WITH TIME ZONE":
primitiveType = PrestoDataType.TIME_WITH_TIME_ZONE;
break;
case "TIMESTAMP":
primitiveType = PrestoDataType.TIMESTAMP;
break;
case "TIMESTAMP WITH TIME ZONE":
primitiveType = PrestoDataType.TIMESTAMP_WITH_TIME_ZONE;
break;
case "INTERVAL DAY TO SECOND":
primitiveType = PrestoDataType.INTERVAL_DAY_TO_SECOND;
break;
case "INTERVAL YEAR TO MONTH":
primitiveType = PrestoDataType.INTERVAL_YEAR_TO_MONTH;
break;
case "JSON":
primitiveType = PrestoDataType.JSON;
break;
case "ARRAY":
int bracesEnd = typeString.length() - 1;
primitiveType = PrestoDataType.ARRAY;
PrestoCompositeDataType elementType = getColumnType(typeString.substring(bracesStart + 1, bracesEnd));
return new PrestoCompositeDataType(primitiveType, elementType);
case "NULL":
primitiveType = PrestoDataType.NULL;
break;
default:
throw new AssertionError(typeString);
}
return new PrestoCompositeDataType(primitiveType, size, precision);
}
public PrestoTables getRandomTableNonEmptyTables() {
return new PrestoTables(Randomly.nonEmptySubset(getDatabaseTables()));
}
public enum PrestoDataType {
BOOLEAN, INT, FLOAT, DECIMAL, VARCHAR, CHAR, VARBINARY, JSON, DATE, TIME, TIMESTAMP, TIME_WITH_TIME_ZONE,
TIMESTAMP_WITH_TIME_ZONE, INTERVAL_YEAR_TO_MONTH, INTERVAL_DAY_TO_SECOND, ARRAY,
// MAP,
// ROW,
// IPADDRESS,
// UID,
// IPPREFIX,
// HyperLogLog,
// P4HyperLogLog,
// KHyperLogLog,
// QDigest,
// TDigest,
NULL;
public static PrestoDataType getRandomWithoutNull() {
PrestoDataType dt;
do {
dt = Randomly.fromOptions(values());
} while (dt == PrestoDataType.NULL);
return dt;
}
public static List<PrestoDataType> getNumericTypes() {
return Arrays.asList(INT, FLOAT, DECIMAL, DATE, TIME, TIMESTAMP, TIME_WITH_TIME_ZONE,
TIMESTAMP_WITH_TIME_ZONE);
}
public static List<PrestoDataType> getComparableTypes() {
return Arrays.asList(BOOLEAN, INT, FLOAT, DECIMAL, VARCHAR, CHAR, VARBINARY, JSON, DATE, TIME, TIMESTAMP,
TIME_WITH_TIME_ZONE, TIMESTAMP_WITH_TIME_ZONE, INTERVAL_YEAR_TO_MONTH, INTERVAL_DAY_TO_SECOND);
}
public static List<PrestoDataType> getOrderableTypes() {
return Arrays.asList(BOOLEAN, INT, FLOAT, DECIMAL, VARCHAR, CHAR, VARBINARY,
// JSON,
DATE, TIME, TIMESTAMP, TIME_WITH_TIME_ZONE, TIMESTAMP_WITH_TIME_ZONE, INTERVAL_YEAR_TO_MONTH,
INTERVAL_DAY_TO_SECOND, ARRAY);
}
public static List<PrestoDataType> getNumberTypes() {
return Arrays.asList(INT, FLOAT, DECIMAL);
}
public static List<PrestoDataType> getTemporalTypes() {
return Arrays.asList(DATE, TIME, TIMESTAMP, TIME_WITH_TIME_ZONE, TIMESTAMP_WITH_TIME_ZONE);
}
public static List<PrestoDataType> getIntervalTypes() {
return Arrays.asList(INTERVAL_YEAR_TO_MONTH, INTERVAL_DAY_TO_SECOND);
}
public static List<PrestoDataType> getTextTypes() {
return Arrays.asList(VARCHAR, CHAR, VARBINARY, JSON);
}
public boolean isNumeric() {
switch (this) {
case INT:
case FLOAT:
case DECIMAL:
return true;
default:
return false;
}
}
public boolean isOrderable() {
return getOrderableTypes().contains(this);
}
public PrestoCompositeDataType get() {
return PrestoCompositeDataType.fromDataType(this);
}
}
public static class PrestoCompositeDataType {
private final PrestoDataType dataType;
private final int size;
private final int scale;
private final PrestoCompositeDataType elementType;
public PrestoCompositeDataType(PrestoDataType dataType, int dataSize, int dataScale) {
this.dataType = dataType;
this.size = dataSize;
this.scale = dataScale;
this.elementType = null;
}
public PrestoCompositeDataType(PrestoDataType dataType, PrestoCompositeDataType elementType) {
if (dataType != PrestoDataType.ARRAY) {
throw new IllegalArgumentException();
}
this.dataType = dataType;
this.size = -1;
this.scale = -1;
this.elementType = elementType;
}
public static PrestoCompositeDataType getRandomWithoutNull() {
PrestoDataType type = PrestoDataType.getRandomWithoutNull();
int size;
int scale = -1;
switch (type) {
case INT:
size = Randomly.fromOptions(1, 2, 4, 8);
break;
case FLOAT:
size = Randomly.fromOptions(4, 8);
break;
case DECIMAL:
size = Math.toIntExact(8);
scale = Math.toIntExact(4);
break;
case VARBINARY:
case JSON:
case VARCHAR:
case CHAR:
size = Math.toIntExact(Randomly.getNotCachedInteger(10, 250));
break;
case ARRAY:
return new PrestoCompositeDataType(type, PrestoCompositeDataType.getRandomWithoutNull());
case BOOLEAN:
case DATE:
case TIME:
case TIME_WITH_TIME_ZONE:
case TIMESTAMP:
case TIMESTAMP_WITH_TIME_ZONE:
case INTERVAL_DAY_TO_SECOND:
case INTERVAL_YEAR_TO_MONTH:
size = 0;
break;
default:
throw new AssertionError(type);
}
return new PrestoCompositeDataType(type, size, scale);
}
public static PrestoCompositeDataType fromDataType(PrestoDataType type) {
int size;
int scale = -1;
switch (type) {
case INT:
size = Randomly.fromOptions(1, 2, 4, 8);
break;
case FLOAT:
size = Randomly.fromOptions(4, 8);
break;
case DECIMAL:
size = Math.toIntExact(8);
scale = Math.toIntExact(4);
break;
case JSON:
case VARCHAR:
case CHAR:
size = Math.toIntExact(Randomly.getNotCachedInteger(10, 250));
break;
case ARRAY:
return new PrestoCompositeDataType(type, PrestoCompositeDataType.getRandomWithoutNull());
case BOOLEAN:
case VARBINARY:
case DATE:
case TIME:
case TIMESTAMP:
case TIMESTAMP_WITH_TIME_ZONE:
case TIME_WITH_TIME_ZONE:
case INTERVAL_DAY_TO_SECOND:
case INTERVAL_YEAR_TO_MONTH:
size = 0;
break;
default:
throw new AssertionError(type);
}
return new PrestoCompositeDataType(type, size, scale);
}
public PrestoDataType getPrimitiveDataType() {
return dataType;
}
public int getSize() {
if (size == -1) {
throw new AssertionError(this);
}
return size;
}
public int getScale() {
if (scale == -1) {
throw new AssertionError(this);
}
return scale;
}
@Override
public String toString() {
switch (getPrimitiveDataType()) {
case INT:
switch (size) {
case 8:
return "BIGINT";
case 4:
return "INTEGER";
case 2:
return "SMALLINT";
case 1:
return "TINYINT";
default:
throw new AssertionError(size);
}
case VARBINARY:
return "VARBINARY";
case JSON:
return "JSON";
case VARCHAR:
return "VARCHAR" + "(" + size + ")";
case CHAR:
return "CHAR" + "(" + size + ")";
case FLOAT:
switch (size) {
case 4:
return "REAL";
case 8:
return "DOUBLE";
default:
throw new AssertionError(size);
}
case DECIMAL:
return "DECIMAL" + "(" + size + ", " + scale + ")";
case BOOLEAN:
return "BOOLEAN";
case TIMESTAMP_WITH_TIME_ZONE:
return "TIMESTAMP WITH TIME ZONE";
case TIMESTAMP:
return "TIMESTAMP";
case INTERVAL_YEAR_TO_MONTH:
return "INTERVAL YEAR TO MONTH";
case INTERVAL_DAY_TO_SECOND:
return "INTERVAL DAY TO SECOND";
case DATE:
return "DATE";
case TIME:
return "TIME";
case TIME_WITH_TIME_ZONE:
return "TIME WITH TIME ZONE";
case ARRAY:
return "ARRAY(" + elementType + ")";
case NULL:
return "NULL";
default:
throw new AssertionError(getPrimitiveDataType());
}
}
public PrestoCompositeDataType getElementType() {
return elementType;
}
public boolean isOrderable() {
if (dataType == PrestoDataType.ARRAY) {
assert elementType != null;
return elementType.isOrderable();
}
return dataType.isOrderable();
}
}
public static class PrestoColumn extends AbstractTableColumn<PrestoTable, PrestoCompositeDataType> {
private final boolean isPrimaryKey;
private final boolean isNullable;
public PrestoColumn(String name, PrestoCompositeDataType columnType, boolean isPrimaryKey, boolean isNullable) {
super(name, null, columnType);
this.isPrimaryKey = isPrimaryKey;
this.isNullable = isNullable;
}
public boolean isPrimaryKey() {
return isPrimaryKey;
}
public boolean isNullable() {
return isNullable;
}
public boolean isOrderable() {
return getType().getPrimitiveDataType().isOrderable();
}
}
public static class PrestoTables extends AbstractTables<PrestoTable, PrestoColumn> {
public PrestoTables(List<PrestoTable> tables) {
super(tables);
}
}
public static class PrestoTable extends AbstractRelationalTable<PrestoColumn, TableIndex, PrestoGlobalState> {
public PrestoTable(String tableName, List<PrestoColumn> columns, boolean isView) {
super(tableName, columns, Collections.emptyList(), isView);
}
}
}