Fix use full column id and view at the same time. (ydb-platform#4414)

Author: Tony-Romanov

ydb/library/yql/sql/v1/select.cpp

@@ -412,8 +412,9 @@ class IRealSource: public ISource {
     }
 
     TMaybe<bool> AddColumn(TContext& ctx, TColumnNode& column) override {
-        auto& label = *column.GetSourceName();
-        if (!label.empty() && label != GetLabel()) {
+        const auto& label = *column.GetSourceName();
+        const auto& source = GetLabel();
+        if (!label.empty() && label != source && !(source.StartsWith(label) && source[label.size()] == ':')) {
             if (column.IsReliable()) {
                 ctx.Error(column.GetPos()) << "Unknown correlation name: " << label;
             }
@@ -703,7 +704,8 @@ class TTableSource: public IRealSource {
     }
 
     bool ShouldUseSourceAsColumn(const TString& source) const override {
-        return source && source != GetLabel();
+        const auto& label = GetLabel();
+        return source && source != label && !(label.StartsWith(source) && label[source.size()] == ':');
     }
 
     TMaybe<bool> AddColumn(TContext& ctx, TColumnNode& column) override {

ydb/library/yql/sql/v1/sql_ut.cpp

@@ -6709,4 +6709,15 @@ Y_UNIT_TEST_SUITE(TViewSyntaxTest) {
 
         UNIT_ASSERT_VALUES_EQUAL(1, elementStat["userschema"]);
     }
+
+    Y_UNIT_TEST(UseViewAndFullColumnId) {
+        NYql::TAstParseResult res = SqlToYql("USE plato; SELECT Input.x FROM Input VIEW uitzicht;");
+        UNIT_ASSERT(res.Root);
+
+        TWordCountHive elementStat = {{TString("SqlAccess"), 0}, {"SqlProjectItem", 0}, {"Read!", 0}};
+        VerifyProgram(res, elementStat);
+        UNIT_ASSERT_VALUES_EQUAL(0, elementStat["SqlAccess"]);
+        UNIT_ASSERT_VALUES_EQUAL(1, elementStat["SqlProjectItem"]);
+        UNIT_ASSERT_VALUES_EQUAL(1, elementStat["Read!"]);
+    }
 }