[CALCITE-2057] StackOverflowError when running a JDBC query

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 1.14.0
• Assignee: Unassigned
• Reporter: Eyal Segal
• Created: 16/Nov/17 08:22
• Updated: 22/Feb/19 01:20

Description

I've ran the following code:

try (ResultSet rs = statement.executeQuery(
                "SELECT p.name, r.views " +
                    "FROM reports.a as r " +
                    "INNER JOIN main.b as p ON p.id = CAST(r.p_id AS INT) AND p.id = 196 " +
                    "WHERE p.id = 196 " +
                    "AND r.p_id = 196 " +
                    "AND r.data_timestamp = TIMESTAMP '2017-11-14 00:00:00'  " )) {

And I'm getting the following StackOverflowError:

Exception in thread "main" java.lang.StackOverflowError
	at com.google.common.collect.ImmutableList.indexOf(ImmutableList.java:339)
	at GeneratedMetadataHandler_RowCount.getRowCount_$(Unknown Source)
	at GeneratedMetadataHandler_RowCount.getRowCount(Unknown Source)
	at org.apache.calcite.rel.metadata.RelMetadataQuery.getRowCount(RelMetadataQuery.java:235)
	at org.apache.calcite.rel.metadata.RelMdRowCount.getRowCount(RelMdRowCount.java:71)
	at GeneratedMetadataHandler_RowCount.getRowCount_$(Unknown Source)
	at GeneratedMetadataHandler_RowCount.getRowCount(Unknown Source)
	at org.apache.calcite.rel.metadata.RelMetadataQuery.getRowCount(RelMetadataQuery.java:235)
	at org.apache.calcite.rel.metadata.RelMdUtil.estimateFilteredRows(RelMdUtil.java:718)
	at org.apache.calcite.rel.metadata.RelMdRowCount.getRowCount(RelMdRowCount.java:123)
	at GeneratedMetadataHandler_RowCount.getRowCount_$(Unknown Source)
	at GeneratedMetadataHandler_RowCount.getRowCount(Unknown Source)
	at org.apache.calcite.rel.metadata.RelMetadataQuery.getRowCount(RelMetadataQuery.java:235)
	at org.apache.calcite.rel.metadata.RelMdRowCount.getRowCount(RelMdRowCount.java:71)
	at GeneratedMetadataHandler_RowCount.getRowCount_$(Unknown Source)
	at GeneratedMetadataHandler_RowCount.getRowCount(Unknown Source)
	at org.apache.calcite.rel.metadata.RelMetadataQuery.getRowCount(RelMetadataQuery.java:235)
	at org.apache.calcite.rel.metadata.RelMdUtil.estimateFilteredRows(RelMdUtil.java:718)
	at org.apache.calcite.rel.metadata.RelMdRowCount.getRowCount(RelMdRowCount.java:123)
	at GeneratedMetadataHandler_RowCount.getRowCount_$(Unknown Source)
	at GeneratedMetadataHandler_RowCount.getRowCount(Unknown Source)
...

It's solved by removing "AND p.id = 196" from the INNER JOIN, but it's still worth fixing.

Issue Links

• is related to: CALCITE-1048 Make metadata more robust
• is related to: CALCITE-794 Detect cycles when computing statistics