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Posted to issues@calcite.apache.org by "Vladimir Sitnikov (JIRA)" <ji...@apache.org> on 2018/07/30 21:05:00 UTC
[jira] [Resolved] (CALCITE-2431) AssertionError:
SqlUtil.getAncestry when providing completion hints for sub-schema
[ https://issues.apache.org/jira/browse/CALCITE-2431?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Vladimir Sitnikov resolved CALCITE-2431.
----------------------------------------
Resolution: Fixed
Fix Version/s: 1.18.0
> AssertionError: SqlUtil.getAncestry when providing completion hints for sub-schema
> ----------------------------------------------------------------------------------
>
> Key: CALCITE-2431
> URL: https://issues.apache.org/jira/browse/CALCITE-2431
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.17.0
> Reporter: Vladimir Sitnikov
> Assignee: Julian Hyde
> Priority: Major
> Fix For: 1.18.0
>
>
> Test case (JdbcTest):
> {code:java} @Test public void testSqlAdvisorSubSchema()
> throws SQLException, ClassNotFoundException {
> adviseSql("select * from \"hr\".^.test_test_test",
> CalciteAssert.checkResultUnordered(
> "id=; names=null; type=MATCH",
> "id=hr.dependents; names=[hr, dependents]; type=TABLE",
> "id=hr.depts; names=[hr, depts]; type=TABLE",
> "id=hr.emps; names=[hr, emps]; type=TABLE",
> "id=hr.locations; names=[hr, locations]; type=TABLE",
> "id=hr; names=[hr]; type=SCHEMA"));
> }{code}
> Relevant code (SqlUtil.getAncestry):
> {code:java} public static ImmutableList<SqlNode> getAncestry(SqlNode root,
> Predicate<SqlNode> predicate, Predicate<SqlNode> postPredicate) {
> try {
> new Genealogist(predicate, postPredicate).visitChild(root);
> throw new AssertionError("not found: " + predicate + " in " + root);
> {code}
> Relevant code from {{SqlAdvisor.isSelectListItem}}:
> {code:java}
> private static boolean isSelectListItem(SqlNode root,
> final SqlParserPos pos) {
> List<SqlNode> nodes = SqlUtil.getAncestry(root,
> input -> input instanceof SqlIdentifier
> && Util.last(((SqlIdentifier) input).names)
> .equals(UPPER_HINT_TOKEN),
> input -> Objects.requireNonNull(input).getParserPosition()
> .startsAt(pos));
> assert nodes.get(0) == root;
> nodes = Lists.reverse(nodes);
> return nodes.size() > 2
> && nodes.get(2) instanceof SqlSelect
> && nodes.get(1) == ((SqlSelect) nodes.get(2)).getSelectList();
> }
> {code}
> It looks like {{Util.last(((SqlIdentifier) input).names).equals(UPPER_HINT_TOKEN)}} should be replaced with {{(SqlIdentifier) input).names.contains(UPPER_HINT_TOKEN)}}.
> Note: the code is advisor-specific, so the replacement should be safe
> Original exception:
> {noformat}java.lang.AssertionError: not found: org.apache.calcite.sql.advise.SqlAdvisor$$Lambda$197/402207819@1b70203f in SELECT *
> FROM `hr`.`_SUGGEST_`.`TEST_TEST_TEST`
> at org.apache.calcite.sql.SqlUtil.getAncestry(SqlUtil.java:872)
> at org.apache.calcite.sql.advise.SqlAdvisor.isSelectListItem(SqlAdvisor.java:242)
> at org.apache.calcite.sql.advise.SqlAdvisor.getCompletionHints(SqlAdvisor.java:220)
> at org.apache.calcite.sql.advise.SqlAdvisor.getCompletionHints0(SqlAdvisor.java:182)
> at org.apache.calcite.sql.advise.SqlAdvisor.getCompletionHints(SqlAdvisor.java:142)
> at org.apache.calcite.sql.advise.SqlAdvisorGetHintsFunction.getCompletionHints(SqlAdvisorGetHintsFunction.java:105)
> at Baz.bind(Unknown Source)
> at org.apache.calcite.jdbc.CalcitePrepare$CalciteSignature.enumerable(CalcitePrepare.java:356)
> at org.apache.calcite.jdbc.CalciteConnectionImpl.enumerable(CalciteConnectionImpl.java:309)
> at org.apache.calcite.jdbc.CalciteMetaImpl._createIterable(CalciteMetaImpl.java:506)
> at org.apache.calcite.jdbc.CalciteMetaImpl.createIterable(CalciteMetaImpl.java:497)
> at org.apache.calcite.avatica.AvaticaResultSet.execute(AvaticaResultSet.java:182)
> at org.apache.calcite.jdbc.CalciteResultSet.execute(CalciteResultSet.java:64)
> at org.apache.calcite.jdbc.CalciteResultSet.execute(CalciteResultSet.java:43)
> at org.apache.calcite.avatica.AvaticaConnection.executeQueryInternal(AvaticaConnection.java:573)
> at org.apache.calcite.avatica.AvaticaPreparedStatement.executeQuery(AvaticaPreparedStatement.java:137)
> at org.apache.calcite.test.JdbcTest.adviseSql(JdbcTest.java:441)
> at org.apache.calcite.test.JdbcTest.testSqlAdvisorSubSchema(JdbcTest.java:374){noformat}
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