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io.trino.plugin.pinot.query.PinotSqlFormatter Maven / Gradle / Ivy
/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.trino.plugin.pinot.query;
import com.google.common.collect.ImmutableList;
import io.trino.matching.Capture;
import io.trino.matching.Captures;
import io.trino.matching.Match;
import io.trino.matching.Pattern;
import io.trino.plugin.pinot.PinotColumnHandle;
import io.trino.plugin.pinot.PinotException;
import io.trino.spi.connector.ColumnHandle;
import io.trino.spi.connector.ColumnNotFoundException;
import io.trino.spi.connector.SchemaTableName;
import org.apache.pinot.common.function.TransformFunctionType;
import org.apache.pinot.common.request.context.ExpressionContext;
import org.apache.pinot.common.request.context.FilterContext;
import org.apache.pinot.common.request.context.FunctionContext;
import org.apache.pinot.common.request.context.predicate.Predicate;
import org.apache.pinot.common.request.context.predicate.RangePredicate;
import org.apache.pinot.segment.spi.AggregationFunctionType;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import static com.google.common.base.Preconditions.checkState;
import static com.google.common.collect.ImmutableList.toImmutableList;
import static com.google.common.collect.Maps.immutableEnumMap;
import static io.trino.matching.Capture.newCapture;
import static io.trino.plugin.pinot.PinotErrorCode.PINOT_EXCEPTION;
import static io.trino.plugin.pinot.PinotErrorCode.PINOT_INVALID_PQL_GENERATED;
import static io.trino.plugin.pinot.query.DynamicTablePqlExtractor.quoteIdentifier;
import static io.trino.plugin.pinot.query.PinotPatterns.WILDCARD;
import static io.trino.plugin.pinot.query.PinotPatterns.aggregationFunction;
import static io.trino.plugin.pinot.query.PinotPatterns.aggregationFunctionType;
import static io.trino.plugin.pinot.query.PinotPatterns.arguments;
import static io.trino.plugin.pinot.query.PinotPatterns.binaryFunction;
import static io.trino.plugin.pinot.query.PinotPatterns.binaryFunctionPredicateValue;
import static io.trino.plugin.pinot.query.PinotPatterns.binaryOperator;
import static io.trino.plugin.pinot.query.PinotPatterns.binaryOperatorValue;
import static io.trino.plugin.pinot.query.PinotPatterns.childFilters;
import static io.trino.plugin.pinot.query.PinotPatterns.expression;
import static io.trino.plugin.pinot.query.PinotPatterns.expressionType;
import static io.trino.plugin.pinot.query.PinotPatterns.filter;
import static io.trino.plugin.pinot.query.PinotPatterns.filterPredicate;
import static io.trino.plugin.pinot.query.PinotPatterns.filterType;
import static io.trino.plugin.pinot.query.PinotPatterns.firstArgument;
import static io.trino.plugin.pinot.query.PinotPatterns.function;
import static io.trino.plugin.pinot.query.PinotPatterns.functionContext;
import static io.trino.plugin.pinot.query.PinotPatterns.identifier;
import static io.trino.plugin.pinot.query.PinotPatterns.predicate;
import static io.trino.plugin.pinot.query.PinotPatterns.predicateExpression;
import static io.trino.plugin.pinot.query.PinotPatterns.predicateType;
import static io.trino.plugin.pinot.query.PinotPatterns.predicateValuesList;
import static io.trino.plugin.pinot.query.PinotPatterns.secondArgument;
import static io.trino.plugin.pinot.query.PinotPatterns.singleInput;
import static io.trino.plugin.pinot.query.PinotPatterns.transformFunction;
import static io.trino.plugin.pinot.query.PinotPatterns.transformFunctionName;
import static io.trino.plugin.pinot.query.PinotPatterns.transformFunctionType;
import static io.trino.plugin.pinot.query.PinotTransformFunctionTypeResolver.getTransformFunctionType;
import static java.lang.String.format;
import static java.util.Objects.requireNonNull;
import static java.util.stream.Collectors.joining;
import static org.apache.pinot.common.function.TransformFunctionType.CASE;
import static org.apache.pinot.common.function.TransformFunctionType.CAST;
import static org.apache.pinot.common.request.context.ExpressionContext.Type.IDENTIFIER;
import static org.apache.pinot.common.request.context.predicate.RangePredicate.UNBOUNDED;
import static org.apache.pinot.segment.spi.AggregationFunctionType.COUNT;
import static org.apache.pinot.segment.spi.AggregationFunctionType.getAggregationFunctionType;
public class PinotSqlFormatter
{
private static final String MINUS = "minus";
private static final List> FILTER_RULES = ImmutableList.>builder()
.add(new AndOrFilterRule())
.add(new PredicateFilterRule())
.build();
private static final List> GLOBAL_PREDICATE_RULES = ImmutableList.>builder()
.add(new MinusZeroPredicateRule())
.add(new BinaryOperatorPredicateRule())
.build();
private static final List> GLOBAL_FUNCTION_RULES = ImmutableList.of(new MinusFunctionRule());
private static final Map> PREDICATE_RULE_MAP;
private static final Map> FUNCTION_RULE_MAP;
private static final Map> AGGREGATION_FUNCTION_RULE_MAP;
private static final Rule DEFAULT_FUNCTION_RULE = new DefaultFunctionRule();
static {
Map> predicateMap = new HashMap<>();
predicateMap.put(Predicate.Type.IN, new ValuesListPredicateRule(Predicate.Type.IN, "IN"));
predicateMap.put(Predicate.Type.NOT_IN, new ValuesListPredicateRule(Predicate.Type.NOT_IN, "NOT IN"));
predicateMap.put(Predicate.Type.RANGE, new RangePredicateRule());
predicateMap.put(Predicate.Type.REGEXP_LIKE, new BinaryFunctionPredicateRule(Predicate.Type.REGEXP_LIKE, "regexp_like"));
predicateMap.put(Predicate.Type.TEXT_MATCH, new BinaryFunctionPredicateRule(Predicate.Type.TEXT_MATCH, "text_match"));
predicateMap.put(Predicate.Type.JSON_MATCH, new BinaryFunctionPredicateRule(Predicate.Type.JSON_MATCH, "json_match"));
predicateMap.put(Predicate.Type.IS_NULL, new ExpressionOnlyPredicate(Predicate.Type.IS_NULL, "IS NULL"));
predicateMap.put(Predicate.Type.IS_NOT_NULL, new ExpressionOnlyPredicate(Predicate.Type.IS_NOT_NULL, "IS NOT NULL"));
PREDICATE_RULE_MAP = immutableEnumMap(predicateMap);
Map> functionMap = new HashMap<>();
functionMap.put(CASE, new CaseFunctionRule());
functionMap.put(CAST, new CastFunctionRule());
FUNCTION_RULE_MAP = immutableEnumMap(functionMap);
Map> aggregationFunctionMap = new HashMap<>();
aggregationFunctionMap.put(COUNT, new CountStarFunctionRule());
AGGREGATION_FUNCTION_RULE_MAP = immutableEnumMap(aggregationFunctionMap);
}
private PinotSqlFormatter() {}
public static String formatFilter(SchemaTableName schemaTableName, FilterContext filterContext, Map columnHandles)
{
requireNonNull(filterContext, "filterContext is null");
Context context = new Context() {
@Override
public SchemaTableName getSchemaTableName()
{
return schemaTableName;
}
@Override
public Optional> getColumnHandles()
{
return Optional.of(columnHandles);
}
};
return formatFilter(filterContext, context);
}
private static String formatFilter(FilterContext filterContext, Context context)
{
Optional result = applyRules(FILTER_RULES, filterContext, context);
if (result.isPresent()) {
return result.get();
}
throw new PinotException(PINOT_INVALID_PQL_GENERATED, Optional.empty(), format("Unexpected filter type: '%s'", filterContext.getType()));
}
private static String formatPredicate(Predicate predicate, Context context)
{
Optional result = applyRules(GLOBAL_PREDICATE_RULES, predicate, context);
if (result.isPresent()) {
return result.get();
}
Rule rule = PREDICATE_RULE_MAP.get(predicate.getType());
if (rule != null) {
result = applyRule(rule, predicate, context);
}
if (result.isPresent()) {
return result.get();
}
throw new PinotException(PINOT_EXCEPTION, Optional.empty(), format("Unsupported predicate type '%s'", predicate.getType()));
}
public static String formatExpression(SchemaTableName schemaTableName, ExpressionContext expressionContext)
{
return formatExpression(schemaTableName, expressionContext, Optional.empty());
}
public static String formatExpression(SchemaTableName schemaTableName, ExpressionContext expressionContext, Optional> columnHandles)
{
requireNonNull(expressionContext, "expressionContext is null");
Context context = new Context() {
@Override
public SchemaTableName getSchemaTableName()
{
return schemaTableName;
}
@Override
public Optional> getColumnHandles()
{
return columnHandles;
}
};
return formatExpression(expressionContext, context);
}
private static String formatExpression(ExpressionContext expressionContext, Context context)
{
return switch (expressionContext.getType()) {
case LITERAL -> singleQuoteValue(expressionContext.getLiteral().getValue().toString());
case IDENTIFIER -> {
if (context.getColumnHandles().isPresent()) {
yield quoteIdentifier(getColumnHandle(expressionContext.getIdentifier(), context.getSchemaTableName(), context.getColumnHandles().get()).getColumnName());
}
yield quoteIdentifier(expressionContext.getIdentifier());
}
case FUNCTION -> formatFunction(expressionContext.getFunction(), context);
};
}
private static String formatFunction(FunctionContext functionContext, Context context)
{
Optional result = Optional.empty();
if (functionContext.getType() == FunctionContext.Type.TRANSFORM) {
Rule rule = FUNCTION_RULE_MAP.get(getTransformFunctionType(functionContext).orElseThrow());
if (rule != null) {
result = applyRule(rule, functionContext, context);
}
else {
result = applyRules(GLOBAL_FUNCTION_RULES, functionContext, context);
}
}
else {
checkState(functionContext.getType() == FunctionContext.Type.AGGREGATION, "Unexpected function type for '%s'", functionContext);
Rule rule = AGGREGATION_FUNCTION_RULE_MAP.get(getAggregationFunctionType(functionContext.getFunctionName()));
if (rule != null) {
result = applyRule(rule, functionContext, context);
}
}
if (result.isPresent()) {
return result.get();
}
result = applyRule(DEFAULT_FUNCTION_RULE, functionContext, context);
if (result.isPresent()) {
return result.get();
}
throw new PinotException(PINOT_EXCEPTION, Optional.empty(), format("Unsupported function expression '%s'", functionContext));
}
private static Optional applyRule(Rule rule, T object, Context context)
{
Iterator iterator = rule.getPattern().match(object).iterator();
while (iterator.hasNext()) {
Match match = iterator.next();
return Optional.of(rule.formatToSql(object, match.captures(), context));
}
return Optional.empty();
}
private static Optional applyRules(List> rules, T object, Context context)
{
Optional result = Optional.empty();
for (Rule rule : rules) {
result = applyRule(rule, object, context);
if (result.isPresent()) {
break;
}
}
return result;
}
private static String singleQuoteValue(String value)
{
return "'" + value.replaceAll("'", "''") + "'";
}
private static String singleQuoteValues(List values)
{
return values.stream()
.map(PinotSqlFormatter::singleQuoteValue)
.collect(joining(", "));
}
public static String stripQuotes(String value)
{
if (value.startsWith("'") && value.endsWith("'")) {
return value.substring(1, value.length() - 1);
}
return value;
}
public static PinotColumnHandle getColumnHandle(String name, SchemaTableName schemaTableName, Map columnHandles)
{
PinotColumnHandle columnHandle = (PinotColumnHandle) columnHandles.get(name);
if (columnHandle == null) {
throw new ColumnNotFoundException(schemaTableName, name);
}
return columnHandle;
}
private interface Context
{
SchemaTableName getSchemaTableName();
Optional> getColumnHandles();
}
private interface Rule
{
Pattern getPattern();
String formatToSql(T object, Captures captures, Context context);
}
private static class AndOrFilterRule
implements Rule
{
private static final Capture FILTER_TYPE = newCapture();
private static final Capture> CHILD_FILTERS = newCapture();
private static final Pattern PATTERN = filter()
.with(filterType().matching(contextType -> contextType == FilterContext.Type.AND || contextType == FilterContext.Type.OR))
.with(filterType().capturedAs(FILTER_TYPE))
.with(childFilters().capturedAs(CHILD_FILTERS));
@Override
public Pattern getPattern()
{
return PATTERN;
}
@Override
public String formatToSql(FilterContext object, Captures captures, Context context)
{
FilterContext.Type filterType = captures.get(FILTER_TYPE);
List childFilters = captures.get(CHILD_FILTERS);
return format("%s(%s)", filterType.name(), childFilters.stream()
.map(filterContext -> formatFilter(filterContext, context))
.collect(joining(", ")));
}
}
private static class PredicateFilterRule
implements Rule
{
private static final Capture PREDICATE = newCapture();
private static final Pattern PATTERN = filter()
.with(filterPredicate().capturedAs(PREDICATE));
@Override
public Pattern getPattern()
{
return PATTERN;
}
@Override
public String formatToSql(FilterContext object, Captures captures, Context context)
{
Predicate predicate = captures.get(PREDICATE);
return formatPredicate(predicate, context);
}
}
// Pinot parses predicates like [=|!=|>|<|>=|<=]
// as equals(minus(x, y), 0) which is not valid pql or valid pinot sql.
// These patterns need to be rewritten to x op y here.
private static class MinusZeroPredicateRule
implements Rule
{
private static final Capture FIRST_ARGUMENT = newCapture();
private static final Capture SECOND_ARGUMENT = newCapture();
private static final Capture BINARY_OPERATOR_NAME = newCapture();
private static final Pattern PATTERN = predicate()
.with(binaryOperatorValue().equalTo("0"))
.with(binaryOperator().capturedAs(BINARY_OPERATOR_NAME))
.with(predicateExpression().matching(expression()
.with(functionContext().matching(binaryFunction()
.with(firstArgument().capturedAs(FIRST_ARGUMENT))
.with(secondArgument().capturedAs(SECOND_ARGUMENT))
.with(transformFunctionName().matching(MINUS::equalsIgnoreCase))))));
@Override
public Pattern getPattern()
{
return PATTERN;
}
@Override
public String formatToSql(Predicate object, Captures captures, Context context)
{
ExpressionContext first = captures.get(FIRST_ARGUMENT);
ExpressionContext second = captures.get(SECOND_ARGUMENT);
String operator = captures.get(BINARY_OPERATOR_NAME);
return format("(%s) %s (%s)", formatExpression(first, context), operator, formatExpression(second, context));
}
}
private static class BinaryOperatorPredicateRule
implements Rule
{
private static final Capture BINARY_OPERATOR_NAME = newCapture();
private static final Capture BINARY_OPERATOR_VALUE = newCapture();
private static final Capture PREDICATE_EXPRESSION = newCapture();
private static final Pattern PATTERN = predicate()
.with(binaryOperatorValue().capturedAs(BINARY_OPERATOR_VALUE))
.with(binaryOperator().capturedAs(BINARY_OPERATOR_NAME))
.with(predicateExpression().capturedAs(PREDICATE_EXPRESSION));
@Override
public Pattern getPattern()
{
return PATTERN;
}
@Override
public String formatToSql(Predicate object, Captures captures, Context context)
{
ExpressionContext predicateExpression = captures.get(PREDICATE_EXPRESSION);
String singleValue = captures.get(BINARY_OPERATOR_VALUE);
String operator = captures.get(BINARY_OPERATOR_NAME);
return format("(%s) %s %s", formatExpression(predicateExpression, context), operator, singleQuoteValue(singleValue));
}
}
private static class ValuesListPredicateRule
implements Rule
{
private static final Capture> VALUES_LIST = newCapture();
private static final Capture PREDICATE_EXPRESSION = newCapture();
private static final Pattern VALUES_LIST_PATTERN = predicate()
.with(predicateValuesList().capturedAs(VALUES_LIST))
.with(predicateExpression().capturedAs(PREDICATE_EXPRESSION));
private final Pattern pattern;
private final String operator;
public ValuesListPredicateRule(Predicate.Type predicateType, String operator)
{
requireNonNull(predicateType, "predicateType is null");
this.operator = requireNonNull(operator, "operator is null");
pattern = VALUES_LIST_PATTERN.with(predicateType().equalTo(predicateType));
}
@Override
public Pattern getPattern()
{
return pattern;
}
@Override
public String formatToSql(Predicate object, Captures captures, Context context)
{
ExpressionContext predicateExpression = captures.get(PREDICATE_EXPRESSION);
List values = captures.get(VALUES_LIST);
return format("%s %s (%s)", formatExpression(predicateExpression, context), operator, singleQuoteValues(values));
}
}
private static class RangePredicateRule
implements Rule
{
private static final Capture PREDICATE_EXPRESSION = newCapture();
private static final Pattern PATTERN = predicate()
.with(predicateType().equalTo(Predicate.Type.RANGE))
.with(predicateExpression().capturedAs(PREDICATE_EXPRESSION));
@Override
public Pattern getPattern()
{
return PATTERN;
}
@Override
public String formatToSql(Predicate object, Captures captures, Context context)
{
RangePredicate rangePredicate = (RangePredicate) object;
ExpressionContext predicateExpression = captures.get(PREDICATE_EXPRESSION);
String expression = formatExpression(predicateExpression, context);
// Single value range should have been rewritten in formatBinaryOperatorPredicate
checkState(!rangePredicate.getLowerBound().equals(UNBOUNDED) && !rangePredicate.getUpperBound().equals(UNBOUNDED), "Unexpected range predicate '%s'", rangePredicate);
if (rangePredicate.isUpperInclusive() && rangePredicate.isLowerInclusive()) {
return format("(%s) BETWEEN %s AND %s", expression, singleQuoteValue(rangePredicate.getLowerBound()), singleQuoteValue(rangePredicate.getUpperBound()));
}
String leftOperator = rangePredicate.isLowerInclusive() ? ">=" : ">";
String rightOperator = rangePredicate.isUpperInclusive() ? "<=" : "<";
return format("(%1$s) %2$s %3$s AND (%1$s) %4$s %5$s", expression, leftOperator, singleQuoteValue(rangePredicate.getLowerBound()), rightOperator, singleQuoteValue(rangePredicate.getUpperBound()));
}
}
private static class BinaryFunctionPredicateRule
implements Rule
{
private static final Capture BINARY_FUNCTION_VALUE = newCapture();
private static final Capture PREDICATE_EXPRESSION = newCapture();
private static final Pattern BINARY_FUNCTION_PREDICATE = predicate()
.with(binaryFunctionPredicateValue().capturedAs(BINARY_FUNCTION_VALUE))
.with(predicateExpression().capturedAs(PREDICATE_EXPRESSION));
private final Pattern pattern;
private final String functionName;
public BinaryFunctionPredicateRule(Predicate.Type predicateType, String functionName)
{
requireNonNull(predicateType, "predicateType is null");
this.functionName = requireNonNull(functionName, "functionName is null");
this.pattern = BINARY_FUNCTION_PREDICATE.with(predicateType().equalTo(predicateType));
}
@Override
public Pattern getPattern()
{
return pattern;
}
@Override
public String formatToSql(Predicate object, Captures captures, Context context)
{
String value = captures.get(BINARY_FUNCTION_VALUE);
ExpressionContext predicateExpression = captures.get(PREDICATE_EXPRESSION);
return format("%s(%s, %s)", functionName, formatExpression(predicateExpression, context), singleQuoteValue(value));
}
}
private static class ExpressionOnlyPredicate
implements Rule
{
private static final Capture PREDICATE_EXPRESSION = newCapture();
private static final Pattern PREDICATE_PATTERN = predicate()
.with(predicateExpression().capturedAs(PREDICATE_EXPRESSION));
private final Pattern pattern;
private final String operator;
public ExpressionOnlyPredicate(Predicate.Type predicateType, String operator)
{
requireNonNull(predicateType, "predicateType is null");
this.operator = requireNonNull(operator, "operator is null");
this.pattern = PREDICATE_PATTERN.with(predicateType().equalTo(predicateType));
}
@Override
public Pattern getPattern()
{
return pattern;
}
@Override
public String formatToSql(Predicate object, Captures captures, Context context)
{
ExpressionContext predicateExpression = captures.get(PREDICATE_EXPRESSION);
return format("%s %s", formatExpression(predicateExpression, context), operator);
}
}
// This is necessary because pinot renders -
// as minus(x, y) which is valid pql for the broker but not valid sql for the pinot parser.
private static class MinusFunctionRule
implements Rule
{
private static final Capture FIRST_ARGUMENT = newCapture();
private static final Capture SECOND_ARGUMENT = newCapture();
private static final Pattern PATTERN = binaryFunction()
.with(transformFunctionName().matching(MINUS::equalsIgnoreCase))
.with(firstArgument().capturedAs(FIRST_ARGUMENT))
.with(secondArgument().capturedAs(SECOND_ARGUMENT));
@Override
public Pattern getPattern()
{
return PATTERN;
}
@Override
public String formatToSql(FunctionContext object, Captures captures, Context context)
{
ExpressionContext first = captures.get(FIRST_ARGUMENT);
ExpressionContext second = captures.get(SECOND_ARGUMENT);
return format("%s - %s", formatExpression(first, context), formatExpression(second, context));
}
}
// Pinot parses cast as a function with the second argument being a literal instead of a type
// The broker request parses it this way, so the reverse needs to be done here
private static class CastFunctionRule
implements Rule
{
private static final Capture FIRST_ARGUMENT = newCapture();
private static final Capture SECOND_ARGUMENT = newCapture();
private static final Pattern PATTERN = binaryFunction()
.with(transformFunctionType().equalTo(CAST))
.with(firstArgument().capturedAs(FIRST_ARGUMENT))
.with(secondArgument().capturedAs(SECOND_ARGUMENT));
@Override
public Pattern getPattern()
{
return PATTERN;
}
@Override
public String formatToSql(FunctionContext object, Captures captures, Context context)
{
ExpressionContext first = captures.get(FIRST_ARGUMENT);
// Pinot interprets the second argument as a literal instead of a type
ExpressionContext second = captures.get(SECOND_ARGUMENT);
return format("CAST(%s AS %s)", formatExpression(first, context), stripQuotes(formatExpression(second, context)));
}
}
// Pinot parses case statements as a function case(,... , ,... , )
// This is valid pql for the pinot broker but not valid sql for the pinot sql parser, so this needs to be rewritten here.
private static class CaseFunctionRule
implements Rule
{
private static final Capture> ARGUMENTS = newCapture();
private static final Pattern PATTERN = transformFunction()
.with(transformFunctionType().equalTo(CASE))
.with(arguments().capturedAs(ARGUMENTS));
@Override
public Pattern getPattern()
{
return PATTERN;
}
@Override
public String formatToSql(FunctionContext object, Captures captures, Context context)
{
List arguments = captures.get(ARGUMENTS).stream()
.map(expressionContext -> formatExpression(expressionContext, context))
.collect(toImmutableList());
checkState(arguments.size() >= 2, "Unexpected expression '%s'", object);
StringBuilder builder = new StringBuilder("CASE");
for (int index = 0; index < arguments.size() / 2; index++) {
builder.append(" WHEN ")
.append(arguments.get(index * 2))
.append(" THEN ")
.append(arguments.get(index * 2 + 1));
}
if (arguments.size() % 2 != 0) {
builder.append(" ELSE ")
.append(arguments.getLast());
}
return builder.append(" END").toString();
}
}
private static class CountStarFunctionRule
implements Rule
{
private static final Pattern PATTERN = aggregationFunction()
.with(aggregationFunctionType().equalTo(COUNT))
.with(singleInput().matching(expression()
.with(expressionType().equalTo(IDENTIFIER))
.with(identifier().equalTo(WILDCARD))));
@Override
public Pattern getPattern()
{
return PATTERN;
}
@Override
public String formatToSql(FunctionContext object, Captures captures, Context context)
{
return format("%s(%s)", object.getFunctionName(), WILDCARD);
}
}
private static class DefaultFunctionRule
implements Rule
{
private static final Capture> ARGUMENTS = newCapture();
private static final Pattern PATTERN = function()
.with(arguments().capturedAs(ARGUMENTS));
@Override
public Pattern getPattern()
{
return PATTERN;
}
@Override
public String formatToSql(FunctionContext object, Captures captures, Context context)
{
return format("%s(%s)", object.getFunctionName(), captures.get(ARGUMENTS).stream()
.map(expressionContext -> formatExpression(expressionContext, context))
.collect(joining(", ")));
}
}
}
