com.facebook.presto.sql.QueryUtil.unmangleFieldReference()方法的使用及代码示例

本文整理了Java中com.facebook.presto.sql.QueryUtil.unmangleFieldReference方法的一些代码示例，展示了QueryUtil.unmangleFieldReference的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。QueryUtil.unmangleFieldReference方法的具体详情如下：
包路径：com.facebook.presto.sql.QueryUtil
类名称：QueryUtil
方法名：unmangleFieldReference

QueryUtil.unmangleFieldReference介绍

暂无

代码示例

代码示例来源：origin: vqtran/EchoQuery

@Override
protected String visitFunctionCall(FunctionCall node, Boolean unmangleNames)
{
StringBuilder builder = new StringBuilder();
String arguments = joinExpressions(node.getArguments(), unmangleNames);
if (node.getArguments().isEmpty() && "count".equalsIgnoreCase(node.getName().getSuffix())) {
arguments = "*";
}
if (node.isDistinct()) {
arguments = "DISTINCT " + arguments;
}
if (unmangleNames && node.getName().toString().startsWith(QueryUtil.FIELD_REFERENCE_PREFIX)) {
checkState(node.getArguments().size() == 1, "Expected only one argument to field reference");
QualifiedName name = QualifiedName.of(QueryUtil.unmangleFieldReference(node.getName().toString()));
builder.append(arguments).append(".").append(name);
}
else {
builder.append(formatQualifiedName(node.getName()))
.append('(').append(arguments).append(')');
}
if (node.getWindow().isPresent()) {
builder.append(" OVER ").append(visitWindow(node.getWindow().get(), unmangleNames));
}
return builder.toString();
}

代码示例来源：origin: uk.co.nichesolutions.presto/presto-parser

@Override
protected String visitFunctionCall(FunctionCall node, Boolean unmangleNames)
{
StringBuilder builder = new StringBuilder();
String arguments = joinExpressions(node.getArguments(), unmangleNames);
if (node.getArguments().isEmpty() && "count".equalsIgnoreCase(node.getName().getSuffix())) {
arguments = "*";
}
if (node.isDistinct()) {
arguments = "DISTINCT " + arguments;
}
if (unmangleNames && node.getName().toString().startsWith(QueryUtil.FIELD_REFERENCE_PREFIX)) {
checkState(node.getArguments().size() == 1, "Expected only one argument to field reference");
QualifiedName name = QualifiedName.of(QueryUtil.unmangleFieldReference(node.getName().toString()));
builder.append(arguments).append(".").append(name);
}
else {
builder.append(formatQualifiedName(node.getName()))
.append('(').append(arguments).append(')');
}
if (node.getWindow().isPresent()) {
builder.append(" OVER ").append(visitWindow(node.getWindow().get(), unmangleNames));
}
return builder.toString();
}