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[CALCITE-7407] Illegal use of dynamic parameter with || #4867

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[CALCITE-7407] Illegal use of dynamic parameter with || #4867

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8ff0b08
[CALCITE-7407] Illegal use of dynamic parameter with ||
macroguo-ghy Mar 30, 2026
ae7fba4
[CALCITE-7407] Illegal use of dynamic parameter with ||
macroguo-ghy Apr 4, 2026
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2 changes: 1 addition & 1 deletion core/src/main/java/org/apache/calcite/sql/fun/SqlStdOperatorTable.java
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Original file line number Diff line number Diff line change
Expand Up @@ -284,7 +284,7 @@ public class SqlStdOperatorTable extends ReflectiveSqlOperatorTable {
}
return type;
}),
null,
InferTypes.RETURN_TYPE,
OperandTypes.STRING_SAME_SAME_OR_ARRAY_SAME_SAME);


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11 changes: 11 additions & 0 deletions core/src/test/java/org/apache/calcite/test/JdbcTest.java
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Expand Up @@ -5967,6 +5967,17 @@ private CalciteAssert.AssertQuery withEmpDept(String sql) {
});
}

/** Test case for
* <a href="https://issues.apache.org/jira/browse/CALCITE-7407">[CALCITE-7407]
* Illegal use of dynamic parameter with ||</a>. */
@Test void testPreparedStatementConcatDynamicParameter() {
CalciteAssert.hr()
.query("select \"name\" from \"hr\".\"emps\"\n"
+ "where \"name\" = (? || 'odore')")
.consumesPreparedStatement(p -> p.setString(1, "The"))
.returns("name=Theodore\n");
}

/** Test case for
* <a href="https://issues.apache.org/jira/browse/CALCITE-2061">[CALCITE-2061]
* Dynamic parameters in offset/fetch</a>. */
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22 changes: 22 additions & 0 deletions core/src/test/java/org/apache/calcite/test/SqlValidatorTest.java
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Expand Up @@ -822,6 +822,10 @@ static SqlOperatorTable operatorTableFor(SqlLibrary library) {
.columnType("CHAR(6) NOT NULL");
expr("'a'||'b'||cast('cde' as VARCHAR(3))|| 'f'")
.columnType("VARCHAR(6) NOT NULL");
expr("null||'b'")
.columnType("VARCHAR");
expr("cast(null as ANY)||cast(null as ANY)")
.columnType("ANY");
expr("_UTF16'a'||_UTF16'b'||_UTF16'c'").ok();
}

Expand Down Expand Up @@ -8287,6 +8291,24 @@ void testGroupExpressionEquivalenceParams() {
sql("select 1 from emp having sum(sal) < ?").ok();
}

/** Test case for
* <a href="https://issues.apache.org/jira/browse/CALCITE-7407">[CALCITE-7407]
* Illegal use of dynamic parameter with ||</a>. */
@Test void testBindConcat() {
sql("select * from emp where ename = (? || 'KI')").ok();
sql("select * from emp where ename = ('SM' || ?)").ok();
}

/** Test case for
* <a href="https://issues.apache.org/jira/browse/CALCITE-7407">[CALCITE-7407]
* Illegal use of dynamic parameter with ||</a>. */
@Test void testConcatNullAndAnyWithContext() {
sql("select * from emp where ename = (null || 'KI')").ok();
sql("select * from emp where ename = ('SM' || null)").ok();
sql("select * from emp where ename = (cast(null as any) || 'KI')").ok();
sql("select * from emp where ename = ('SM' || cast(null as any))").ok();
}

/** Test case for
* <a href="https://issues.apache.org/jira/browse/CALCITE-1310">[CALCITE-1310]
* Infer type of arguments to BETWEEN operator</a>. */
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