@Override
public String toSql() {
StringBuilder strBuilder = new StringBuilder();
if (withClause_ != null) strBuilder.append(withClause_.toSql() + " ");
strBuilder.append("INSERT ");
if (overwrite_) {
strBuilder.append("OVERWRITE ");
} else {
strBuilder.append("INTO ");
}
strBuilder.append("TABLE " + originalTableName_);
if (columnPermutation_ != null) {
strBuilder.append("(");
strBuilder.append(Joiner.on(", ").join(columnPermutation_));
strBuilder.append(")");
}
if (partitionKeyValues_ != null) {
List<String> values = Lists.newArrayList();
for (PartitionKeyValue pkv : partitionKeyValues_) {
values.add(
pkv.getColName() + (pkv.getValue() != null ? ("=" + pkv.getValue().toSql()) : ""));
}
strBuilder.append(" PARTITION (" + Joiner.on(", ").join(values) + ")");
}
if (planHints_ != null) {
strBuilder.append(" " + ToSqlUtils.getPlanHintsSql(planHints_));
}
if (!needsGeneratedQueryStatement_) {
strBuilder.append(" " + queryStmt_.toSql());
}
return strBuilder.toString();
}
@Override
protected String tableRefToSql() {
// Enclose the alias in quotes if Hive cannot parse it without quotes.
// This is needed for view compatibility between Impala and Hive.
String aliasSql = null;
if (alias_ != null) aliasSql = ToSqlUtils.getHiveIdentSql(alias_);
return name_.toSql() + ((aliasSql != null) ? " " + aliasSql : "");
}
